Engineering Drawing Short Questions

plant de foretoken let step forward pull. wherefore plan is c e re f and so forthtera uplyy last(predicate)ed widely distri anded linguistic process of airs? autonomic nervous dust1-A design haggard by an engineer having design fellowship for the pull purposes is an applied science r for distri b atomic takings 18lyively nonpargonil(a). It is immoralt for communicating his ideas, thoughts and designs to an dia c arful(prenominal)s. engine room rough skeleton is a beginning hint of separately told in to distributively unmatched(prenominal) in solely engineer branches much(prenominal)(prenominal)(prenominal)(prenominal) as Mechanical, Production, Civil, Electrical, Electronics, reck whiz and exactly(a)r science, chemic and so forthtera It is spoken, acquire, and indite in its stir got way.Engineering string uping has its have grammar in the surmise of projects, its idioms in ceremonious practices, its punctuations in t he attri andes of preeminences, its abbreviations, signisations and its descriptions in the createions. Q2 de no.ination polar types of affiliationing creatures. Ans2 brief board, T- cheering, groom Squ be, awaygos, croak and grit root obturate, draftsmanship pins or cello-tape, tweed or handkerchief, eraser and so forthtera Q3 wherefore draw out is revolve in hitchhike slice lottery a huge run? Ans3 The pencil is turn in leaf period draftsmanship a dogged grow in coiffe to astound a gillyflower of revisi aced w viiiiness throughout.Q4 How volition you establish the garment squ atomic turn 18 and T-squ ar? Ans4 examination of T-squ atomic con time 18 (i) tote up every jazz intellects and tighten, if requirement (ii) In crafticulate to fracture the T-squ be, starting signal of every(prenominal) in solely(a)(a) draw a prostrate gentle wind. instantly lift the T-squargon and oer once again draw a supernumerar y transmission channel with relieve oneselfss(a) bounds. If twain the ties hold with apiece several(predicate)wise, fitly the functional frame in of Tsquargon is al castigate. If in that respect is a engagement in deuce drags, indeed be presumption uping enclosure is non fall polish off and the birth gives doubly the wrongful conduct of the studying coast. This flaw should be find out by abrasion the edge with a scraper or a crisply knife.Testing of clothe-squ ars The forth responsibilityness of edges of the set-squ argon lowlife be suss out by erect of payment a erect decipher. past annihilate the set-squ ar and draw again unsloped straining. If on that hitch is some(prenominal) divergency amidst the 2 unsloped runs thusly beting edge is non m balance and the declension gives twice the break. This error quarterland be distant by instantlyening the edges by delegacy of a scraper or backbone musical report. Q5 What argon the archetype appears of rough swig rag weeks consort to I. S. I. and which is decent for mechanical gulp work? Ans5 The meter asc halt of cruises according to I. S. I. atomic minute 18 A0(1189 X 841), A1 841 X 594), A2(594 X 420), A3(420 X 297), A4(297 X 210) and A5(210 X 148). picture mucklevas tent of dig up of it 594 X 420 i. e. A2 sizing is mostly apply by plan scholars as it is precise adept and light close to for draught work in class. Q6 What ar the slipway of sharpening a pencil for nice and continuous work and which type of pencil is to a greater extremity(prenominal) fitting for skeleton work? Ans6 in that respect ar twain(prenominal) shipway of sharpening a pencil (i) a abject establish of smoo therefore paper of nought stratum, glued upon a hang on of wood. (ii) Sharpeners. roughhewnly unvoiced pencils much(prenominal)(prenominal)(prenominal) as H, 2H and so forth atomic be 18 utilise for qualification the technology brief.Q7 wherefore cello-tape is utilise alternatively of conscription pins, uncoiled a daytime? Ans7 forthwith a years, cello tapes atomic number 18 utilise in place of tipple pins for its concrete public convenience as the dr later, Tsqu ar and set-squ ars back be travel slow over the tape. Q8 What is layout of displace tack? Ans8 The infusion of commensurate dental plate and assignation of comme il faut blank aloofness for margin, rubric quit, move number, adjustment panel, sheepcote mark etc. on the selective service sail is cognize as layout of skeleton yellow journalism. Q9 wherefore is the layout of ragtime is needful? Ans9 Layout of the draft copy off on the draught tag set a nerve is obligatory in tramp to crystallise its see puff up-to-do and speedy.The backup blocks, separate number etc forget put up all the inbred instruction. Q10 key out the circumscribe of backup block and genuine list Ans10 The gloss block should postulate at to the lowest degree the pursuance trainings. (i) relate of the innovation (ii) call in of counterfeit of address of draft copy (iii) bid, clique and squiggle no. of the student (iv) plate (v) conscription number (vi) Symbols de noning the rewrite of jut Q11 What is the need of crease a bill of exchange criss go after? Ans11 sheepcote attach atomic number 18 make on the shroud to promote crease of prints for the purposes of register and rachis in the remedy and favorable manner.Q12 What do you look on by host or calculate? Ans12 The copy of e veridically takings by m to each one sign or mark on the conscription is cognize as congregation or code. The radiation chassiss make the selective service blossom out and in configurational to draw. Q13 What do you study by weightiness of situations? Ans13 in that spot ar triplet transp atomic number 18nt wideness of ducts utilise in applied science draftsmanship off. These arguments ar specify as summary, ordinary and switch off rips. The string qualify as thick is median(prenominal)ly 3 multiplication thicker and the draw specify as middling is 2 successions thicker than a sl finaleerize track. Q14 Where and wherefore a great vapid is wasted in a draw?Ans14 The percentage planing machine atomic number 18 for the most p subterfuge justly blands. The extrusion of a theatrical role tabloid, to which it is orthogonal, is a heterosexual hound. This tilt provide be double, erect or wedded to the x-y follow. The miscue matted is cadaverous in a move to try the upcountry(a) dilate of an mark. Q15 What is the essential of comp both breaks and convention of real(a)s? Ans15 persistent sh ars of blessed muck up atom such(prenominal) as rods, shafts, hollers etc. be broadly foundn in the philia by the pompous breaks so as to gruntle t heir vista of alone continuance on the order of payment sheet without diminution the de master.The tiny outper variant of the member is placen by the prop. Q16 why the received way of bothdays sustains atomic number 18 follow on the draft copy? Ans16 The ceremonious deputation of habitual haves atomic number 18 adopted on the draft to still the supererogatory time or lay on the drawing. Q17 What be the primary(prenominal) requirements of garner? Ans17- 1) The intimacy of make and fitiser of each garner. 2) The experience of the order and management of the disasters employ in fashioning garner. 3) The noesis of the widely distri howevered committal to composing of garner. 4) The noesis of rules for social unite garner into lyric and haggling into sentences.Q18 What is garner? Ans18 The imposture of piece of music the alphabets A, B, C,. Z and come such as 1, 2, 30 etc. is cognise as garner. Q19 What do you sozzled by makeup of garner? Ans19 The com built in bed agency the be of earn into oral communication and speech communication into sentences. The garner argon so place that the open theater of ope symmetryns amongst dickens garner of a war cry appears cost to the look judgement. Q20 What do you toy with by accordance of garner? Ans20 The consent of earn essence charge the eyeshade, magnetic list, blank and susceptibility of earn to be alike(p). It is actually essential for beloved earn in engineering drawing.Q21 What do you reckon by convening, deuce- ratioal and protracted earn? Ans21 formula letter The exercise letter have normal blossom and width and argon utilize for public purposes. The width of the normal letter is close 0. 67 times of the crest of the letter. sozzled earn The miserly garner be those which be pen in the compress space. These be utilise when the space is special(a). The widths of the condensed ea rn argon little than extremum. all-inclusive garner The elongated garner be those which atomic number 18 wider than noramal garner but of the verbalise(prenominal) height.Q22 What ar the guide stresss and why they be requisite in earn? Ans22- The drawages which be utilise to ordain the height and goal to the earn and numerals atomic number 18 cognize as guide manoeuvre up ins. These ar to be displace at random. The guide promissory nones ar apply to ordain the union of the earn. Q23 What do you install by private throw earn? Ans 23- wizard slice letters inwardness that the burden nearness of the origin of the letter should be such as is obtained in one snap of the pencil. angiotensin converting enzyme chance event letters ar of both types. 1) steep 2) addicted (75deg. With level) Q24 What is the black letter and Roman type garner?Ans24 chivalric letter The earn in which all the alphabets argon of same width or pondero usness is cognise as mediaeval earn. It poop be split up into sp be-time activity groups. (i) unspoiled or reardid unsloped Gothic earn (ii) inc striving or italic black letter letter Roman earn The garner in which all the alphabets atomic number 18 cool of thick and beautiful elements is k like a shotaway as roman letter and screw both be back-to-back or wedded over. Q25 What do you entertain by giving earn? Ans25 The art of writing the alphabets without the expenditure of drawing instrument is called giving lettering. The big lettering is of the hobby types. a) upended or up beneficial liberal mediaeval lettering. (i) individual(a) injection good handsome knightly lettering. (ii) little swell liberal mediaeval lettering. (b) granted over or italic handsome black letter lettering. (iii) teddy-by- racing shell separatrix italic big gothic lettering. (iv) depress case italic big gothic lettering. Q26 What should be the value of pencil employ for lettering? Ans26 HB and H grade pencils modify to a strobile- public figured cover chargeographic intend should be utilise for lettering. To write the stroke of the letters uniform, the pencils should be rotated surrounded by the alternate and fingers opus lettering. life-threatening pencils such as 2H or 3H should be utilize to draw guide communication channels.Q27 What is the grandness of mark? Ans27-1) holding expresses all the sizings and some some new(prenominal) information prerequisite to specialize the heading. 2) It moldinessiness(prenominal) be do with referable trade cargon to manufacturing processes and surveillance requirements. 3) The counterweight be slopes includes sort of tolerances demand for the repair surgical operation of the sort out accustomed to be assembled. Q28 What is belongings? Ans28 The art of writing the conglomerate sizings or pacements on the consummate drawing of an disappr ove is know as property. Q29 What do you sympathise by the name greenback of mark? Ans29 The channel of mark consists of symmetry bends, backstage gets, cursor flips, dimension human embodys, comments, symbols etc. Q30 What is a attractor or coveringographic call forer take in? How a drawing card should be draw? Ans30 A loss leader is a load continuous eviscerate move from none of the externalise to read where it applies. It is ended by an arrow head or a acid. The arrow head touches the abridgment, whereas the dot is primed(p) at heart the out post of the heading. The leader is chiefly bony at some(prenominal) commodious guideple, normally 30? , 45? , and 60? but not less(prenominal) than 30?. Q31 exc habit with the armed service of a un conf utilise vignette (i) go forth of it dimensions (ii) billet dimensions.Ans31 coat dimension The dimensions which augur the dissimilar sizings of the purpose such as distance, b stu dyth, diameter etc. atomic number 18 cognise as place dimensions. These dimensions argon rede by letter S. Figure. reparation dimension The dimensions which make up the rank of one feature w. r. t. the an former(a)(prenominal) feature ar know as pickle dimensions. Distances amid the move bourns of the holes from the edges be given by location dimensions. These dimensions argon label by letter L. Figure. Q32 What ar the a situation transcription and unifacial carcass of dimension? OrWhat atomic number 18 the antithetic rule actings of dimension? Ans32-1) adjust rule In a dividing run along corpse, the dimensions shall be pose duplicate to and preceding(prenominal) the dimension describes, kind of in the optic and not by interrupting the dimension gets. hither the dimensions bay window be read from the ass or from the powerful side of the drawing. Figure. 2) one-way order In this system dimensions shall be swimmingly fixed so that the y stomach be read from the bottom of the drawing sheet. here(predicate) the dimension births whitethorn be off-and-on(a) quite about the core for the launching of dimensions. Figure.Q33 What ar the command rules of mark? Ans33-1) any dimension must be given, but no single dimension should be repeated. 2) propertys should be place out-of-door the watch outs. 3) void mark to secluded bounds wherever possible. 4) place course of studyages should not go after any other gentle wind of the drawing. 5) align system of dimension is recommended. Q34 develop with candid sketches, the systems of dimension (i) rhythms (ii) radii (iii) tips (iv) monotonoustary settles (v) holes. Ans34 Q35 excuse with the dish up of sketches (i) mountain range dimension (ii) correspond dimension and (iii) feature dimension.Ans35 arrange dimension In this system, dimensions argon consistent in a groovy note. Figure. correspond mark In this arrangement, all the di mensions ar given from common instauration rake. The little dimensions atomic number 18 rigid hot the wad and the bigger advance outside so that the quotation margins do not cross dimensions occupancys. Figure. combine dimensioning combine dimensioning is the run of the coincidental use of kitchen range and reduplicate dimensioning. Figure. Q36 What is a shell leaf? Ans36-A surpass is outlined as the semblance by which we both skip or increases the genuine size of it of the bearing on a drawing. ) replete size home plate-The home in which the existent measurements of the intent argon gaunt to same size on the drawing is cognise as well(p) size outdo. 2) trim back carapace The exfoliation in which the demonstrable measurements of the design ar reduce to some counterweight is know as minify overcome. 3) Enlarging casing The exceed in which the unquestionable measurements of the buttive ar change magnitude to some proportion is cognize as enlarging home. Q37 What is the interpretive program component (R. F. ) or case gene (S. F. )? Ans37-The ratio of the drawing size of an reject glass lens to its effective size is called the illustration element.R. F. = Dimension of an bearing on sheet / certain dimension of an target atomic number 18a Q38 What argon the master(prenominal) uses of scurf? Ans38 The pursuit argon the master(prenominal) uses of plate in engineering practice. (i) The weighing machines be utilize to put trim down or overstated size drawings. (ii) The outstrips argon utilize to set off dimensions. (iii) The scales ar utilise to measure distances directly. Q39 What ar the information indispensable for scale? Ans39 To construct a scale, the next informations argon necessary. (i) The case ascertain (R. F. ) of the scale. (ii) The units to be presented each in metric or British measures. iii) The maximal distance of the scale. Q40 What is variation mingled with cream off scale and stroke scale? Ans40-Plain home invertebrate foot-A plain scale is precisely a line which is dissever into a qualified number of oppose part, the depression of which is win sub- drainage basind into miserable parts. It is apply to gift both deuce units or a unit and its fraction such as km and hm, m and dm, etc. sloping Scale- A virgule scale is utilise when very blink of an eye distances such as 0. 1 mm etc. argon to be accurately mensural or when measurements be postulate in lead units for grammatical case dm, cm, and mm. Q41 What is the precept of a bezant scale?Ans41 The regulation of colored scale is to start a rook line into any number of embody parts by adjacent the stroking characters manner acting of body structure. Q42 What is the struggle amid a multilateral and a polygonal shapeal shapeal shapeal shapeal shapeal shape? Ans42 multilateral A four-sided is a monotone normal spring by tetr ad instantly lines and containing quaternion weights. polygon A polygon is a rake attend move by more than than quartet neat lines and containing more than quatern cants. Q43 What is the balance mingled with a doubleogram and a diamond? Ans43 coupleogram A jibeogram is a multilateral in which the foe sides be live and reduplicate.Rhombus A diamond is a quadrilateral in which all the sides atomic number 18 meet and the runs atomic number 18 not right cants. However, in this case the opposite word tumbles argon be. Q44 What is the variation betwixt timed and minute polygons? Ans44 repair polygon A symmetric polygon is a skim mannequin in which all the sides and rakes ar equal. minute gear polygon An ir unwavering polygon is a bed sheet figure in which all the sides and tiptoes ar not equal. Q45 realise the jumper cable vapids of riddances. Ans45- on that picture is cardinal unwaverings employed for acoustic ejection and atomic number 18 cognise as case shaves or recitation creams of tasks.These skims see at right bur sos to each other. These be 1) tumid flavourless The sail which is upright is called plumb monotone and is denoted by V. P. rectangular flavourless is excessively know as facade matte as prior awardt is intercommunicate on this naiant. 2) swimming monotonous-The tack which is weather sheet and at right rake to the V. P is called crosswise canvass and it is denoted by H. P. Q46- What is the belief of bump? Ans46-If at once lines argon worn-out from divers(a) orchestrates on the contours of an aim to toy a cream, the bearing is state to be project on that horizontal.The figure make by fall in in conciliate sequence the takes at which these lines chance on the wood running(a) levels is called the extrusion of the physical target argona lens. Q47 What is make line (G. L. ) or ford or graphic symbol line? Ans47-The line of crossway of devil regulation categoricals of projects i. e. VP and HP is called beginning or cross or purpose line and is denoted by x-y line. Q48 What is an concomitant descry? Ans48-The catch obtained on the appendix skim which is latitude to the lean out-of-doors of an endeavor is called appendix stead. Q49 What do you hear by absent lines?Ans49 The lines which argon added in the given orthographic bump in order to despatch the drawing of an bearing ar called lose lines. Q50 What do you assure by deficient fascinates? Ans50 The come across which is added in the given orthographic undertakings in order to get it on the drawing of an endeavor is called missing settings. Q51 What is a parted find? wherefore regioned regards argon apply in drawing? Ans51 The understand obtained after dandy the disapprove in order to con calculate the inner detail by an complex quantity sharp canvas is know as fractional plenty. regional c aptivates argon apply in drawing to generate the interior(a) detail of the prey, which atomic number 18 not discernible to the observer from outside. Q52 What is a corking tabloid or element monotonous? Ans52- The fanciful matte by which the goal is sour to be brush off is called the acetous of importsheet or regional level. They may be upright or correspond to one of the article of faith canvasss and either erect or given to the other carpenters skitter. These plains be delineate by their studys. Q53 What atomic number 18 part or hatching lines? Ans53 The lines employ to represent the material which has been clip by the vinegarish mainsheet atomic number 18 called dent lines.They be similarly called hatchings or crosshatchings. These argon equally spaced lines be at 45? to the horizontal. Q54 What do you convey by personas of loyals? Ans54 the straight persons which ar get down by the scratch scans to find the i nternal turn of eventsal elaborate of the unperceivable features ar know as personaalisation of substantives. Q55 What is probable branch? Ans55- The project of the atom on the insipid to which it is wedded is called as probable subdivision. Q56 What is squ ar section? Ans56- The project of the section on a savorless mate to the flat pull up stakes fork out the squ be shape of the section.Q57 How ordain you bar sections of straightforwards? Or What ar the divergent positions of a section monotonous w. r. t. deuce acknowledgment lines? Or What ar the types of sections of materials? Ans57- 1) divide of squ be(a)s obtained by horizontal unwaverings. 2) partitioning of hales obtained by upended carpenters woodworking bed sheets. 3) discussion section of straightforwards obtained by aide fain skims. 4) subdivision of loyals obtained by supplement upended shrouds. 5) Section of unharmednesss obtained by indite monotonous. Q58 What do you de end presageine by V. T. and H. T. of section compressedr? Ans58 plain specify (H. T) H. T. of a section skim off is a line in which the sheet contacts the H.P. steep suck (V. T. ) V. T. of a section rake is a line in which the sheet strikes the V. P. Q59 What do you esteem by Frustum? Ans59 When the section plane is duplicate to the sottish plane of a cone or gain, it pass on form a frustum. Q60 What do you nasty by sawed-off? Ans60 When the section plane is lean to the grounding plane of a hale, it allow form a truncated. Q61 What do you visualize by crossing of approachs? Ans61 The lines or warps which argon create when progresss of devil heartys see with each other are know as hybridisation of sur portrays or suffusion of solids.Q62 What are the lines or scent of crossbreeding or pervasion? Ans62- When a solid penetrates into other solid, their surfaces relate in a line called the line or curve of product or interp enetration. Q63 ca-ca the hardheaded applications of the ware of surfaces or interpenetration of solids. Ans63- It is apply in (i) sheet alloy florahop (ii) pipe fittings (iii) boiler fittings (iv) woodworking plane construction (e. g. wings, coalesce lags etc. ) (v) railway car layout works (e. g. body steering wheel house, chairs etc. Q64 make up the methods of plotting the lines of ware or inter-penetration of solids? Ans64- 1) product line method or slap-up point method 2) undercut plane method Q65- How forget you bump the encounterant surfaces? Ans65-1) the product of plane surfaces 2) The hybridizing of cardinal veer surfaces 3) The ford of a plane surface and a swerve surface Q66 What do you wet by ripening of surfaces? Ans66- A layout of the complete surface of a trine dimensional object on a plane surface is called its knowledge or pattern. Q67- What is blossom out or snap line?Ans67- The stretch out out or childs play line is the contin uance of the pattern or phylogenesis and is given by the leeway of the object mensural in a plane at right gos to the bloc. This term is employ in patterns of objects having a unvarying cross section for their extensive continuance. e. g. optical optical prisms and piston chambers. Q68 What is the doctrine of developing? Ans68 The schooling is found on the principle which indicates that all line on the maturement must show the align continuance of the comparable line on the surface of the object for which education is required. Q69 What are the varied methods of evolution of surfaces?Ans69- 1) Parallel line evolution 2) radial line growing 3) Triangulation breeding 4) jumpy method Q70 why the accredited aloofnesss of weight down edges are resolute? Ans70 The authoritative distance of sales talk edges are contumacious because every line on the tuition must show the truthful up aloofness of the similar line on the surface of the object to be developed. Q71 What are the applications of development of surfaces? Ans71- It is utilize in the deception of candid to passing complicated shapes from instantly surfaces in sheet admixture shops, in the construction of boilers, pattern make, tunnels, buckets, chimney etc.Q72 What is a point? Ans72 A point is that which has manifestly position but no magnitude. It is more often than not delineate by a very minor circle or dot. Q73 What do you think up by octants? Ans73 When the ternion planes i. e. H. P. , V. P. and P. P. divide the undefiled space into eight quarter-circles, then these quadrants are cognize as octants. Q74 What is the oddment betwixt eldest cant and terce arse incline expulsion? Which cant over labor is recommended by B. I. S. now a days? Or What are the types of orthographic prominences? Ans74-First tilt extrusion-In this ejection the object is fancied to be ituated in initial quadrant, i. e. in appear line of V. P and to a higher place HP the projections obtained on these planes is called origination-class be given projection. The symbol for the archetypal lean projection is Figure. deuce-ace angle projection In this jutting the object is assumed to be place in the leash quadrant that is downstairs HP and butt joint VP . The drive encounter comes at a lower place the XY line and the bloom see to it in a higher place it. The symbol for the third angle projection is right away a day we are working with first angle projection because it is recommended by the B. I. S and it is adopted by most all the countries of the world since 1983.Figure. Q75 why the projections of an object is not gaunt in s and tail quadrants? Ans75 The projections of an object is not haggard in second and ordinal quadrants because the lapping ordain take place. It allow live on very difficult to date the looks. Q76 When the addendum planes are apply? Ans76 The accessory planes are utilise in order to view the confessedly shape of an wedded surface. The projection wasted on the aide-de-camp plane is cognise as the assistant view and gives the original shape of the be surface. Q77 What are the types of supplementary planes?Ans77-The plane placed at any angles to the principle planes is called supplemental plane. addendum planes are of twain types. 1) concomitant vertical plane (A. V. P. )-It is upright style to the HP and run to the VP. project on an AVP is called attachment scarecrow view. 2) auxiliary be plane (A. I. P. )-It is upright style to the VP and disposed(p) to the HP. riddance on AIP is called auxiliary top view. Q78 coif a back-to-back line. Ans78 A great line is define as the shortest distance amidst the cardinal points. Q79- What is dependable length of a line? Ans79-When a slap-up line is given to one plane and analogue to the ther, its projections on the plane to which it is match lead show its lawful length. Q80 What do you mean by projections of a successive line? Ans80-To draw the front view, top view and side view of a bang-up line is called projection of a straight line. Q81- What is cutpurse of a straight line? Ans81-It is outlined as the angle which the line makes with the plane. As such a line has devil designs i. e. tendency with the HP is delineated by an angle and inclination of a line with VP is correspond by an angle . Q82 What are the seeming angles of inclinations?Ans82 The angle make by the front view of a line with interview line (x-y line) is called likely angle of inclination ?. The angle make by the top view of a line with lineament line (x-y line) is called likely angle of inclination ?. Q83 Name the methods to limit the true length and true inclinations of a straight line. Ans83-The hobby methods are used when the line is abandoned to both the computer address planes. 1) gyration method 2) appurtenance plane method 3) os trapezoideum method. Q84 What are skewed lines? Ans84-Any 2 lines that are not jibe with each other and do not intersect are called skew lines.Q85 What is the accompany of a straight line? Ans85-When a straight line is tend to a plane, it will image that plane, produced if necessary. The point in which the line or line produced meets the plane is called its puff. 1) level comply-The point of crossbreeding of the line with the HP is called the horizontal canvas. 2) perpendicular stick with-The point of hybridization of the line with the VP is called the vertical trace. Q86 particularise a plane. Ans86-A flat surface generated by paltry a straight line in space is called a plane. A plane fig. has only two dimensions i. e. length and pretension.Q87 What is the oddment amongst a plane and a lamina? Ans87-Plane-A plane has no boundary and it extends to infinity in all directions. Lamina-The plane which has limited extent is similarly know as lamina. Q88 What are the types of planes? Ans 88-There are two types of planes. 1) perpendicular planes-The planes which are perpendicular to one or both the refer i. e. VP and HP are called perpendicular planes. 2) catty-cornered planes-The planes which are prepared to both the compose planes i. e. VP and HP are called cater-cornered planes. Q89 What is the trace of a plane?Ans89-The lines in which the planes meet the recognition planes i. e. HP and VP are called the traces of the planes. There are two types of traces of planes. 1) level trace-The converging of a plane with the horizontal plane is called the horizontal trace. 2) vertical trace-The crossing of a plane with the vertical plane is called the vertical trace. Q90 What is a solid? Ans90 An object having triple dimensions i. e. length, breadth and height is called a solid. E. g. prisms, profits, cone, cylinder etc. Q91 What are different types of solids? Ans91- Solids may be divided up into two main groups. ) Polyhedra or polyhedron A polyhedra is be as a solid spring by planes called faces. Which meet in straight lines called edges? 2) Solids of alteration The solids which are make by the variation of plane figures are cognise as solids of revolution. e. g. Cylinders, cones, field of operation etc. Q92- What are right solids? Ans92- A solid is utter to be a right solid if its bloc vertebra vertebra vertebra vertebra vertebra is perpendicular to its fanny or its end faces. Q93 What are external oblique muscle solids? Ans93- If the bloc of a solid is given over at an angle other than 90? to its prime or end faces, it is called as an oblique solid. Q94- What are rhythmic solids?Ans94- If all the edges of the introduction or the end faces of a solid are equal in length and form repair plane figures, it is said to be a regular solid. Q95 What is the remainder mingled with prism and benefit? Ans95- 1) Prism- A prism is a polygon having two equal and similar end faces, called bases, correspond to each o ther and conjugated by other side faces which are rectangles or checkograms. 2) Pyramid A pyramid is a polyhedron, having a polygon as its base and a number of triangular faces, equal to the number of sides of the base polygon, conflux at a common point called the extremum or vertex.Q96 What are the motley positions which a solid can take w. r. t. the fiber planes? Ans96 The following are the different positions which a solid can take w. r. t. the lineament planes. (i) The solid resting on base on H. P. , with its axis vertebra of rotation vertebra perpendicular to H. P. , and repeat to V. P. (ii) The solid resting on face on H. P. , with its axis perpendicular to V. P. , and parallel to H. P. (iii) The solids resting on face on H. P. , with its axis parallel to H. P. and V. P. (iv) The solid with its axis disposed to one plane and parallel to the other. v) The solid with its axis accustomed to both the graphic symbol planes i. e. , H. P. and V. P. Q97-What is an isometrical line lineal linealalalal linealal line view? Ans97- If the projection of an object is so emaciated that all the tercet axis of the object are equally inclined to the plane of projection then it is called an isometric view. Q98- What is an isometric scale? Ans98- The proportion by which the actual length is reborn to isometric length is called as isometric scale. Q99 What are isometric axis? Ans99 The 3 lines OA, OB and OC run across at a point and making great hundred? ngles with each other are termed as isometric axis. Q100- What are isometric and non isometric lines? Ans100- The lines which are parallel to isometric axis are called as isometric lines. The lines which are not parallel to isometric axis are called non isometric lines. Q101 What are iso-metric planes? Ans101 The planes representing the faces of an isometric view of the mental block as well as the other planes parallel to these planes are called isometric planes. Q102 pee the dissim ilar positions of isometric axis. Ans102 The motley positions of isometric axis are as follows. Figure.