SECTION A

1 SAMPLE QUESTION PAPER (2021-22)Class XIITERM 1 ENGINEERING GRAPHICS (046)Maximum Marks: 35 Time Allowed: 90 MinutesGeneral Instructions:1. The Question Paper contains three sections A, B and SECTION A has any 20 SECTION B has 24 any 20 SECTION C has 6 any 5 All questions carry equal There is no negative AThis SECTION A has 25 Multiple Choice any 20 )Which is the included angle of aregularhexagon?a)300b)600c)900d)12002)N ame the projection withmultiple )Perspectiveprojectionb)Isometricproject ionc)Orthographicprojectiond)Obliqueproj ection3)Name thesolid with )Coneb)Square prismc)Triangular Prismd)Sphere4)Name thetype oflinewhich is used for )Small dash lineb)Chain linec)Wavy lined)Thin continuous line5)Which is the correct sequence in case of first angle method of projection ?a)Observer,Planeof projection , Objectb)Observer, Object, Plane of projectionc)Object,Plane of projection ,Observerd)Object,Observer,Pla ne of projection6)What is the thread angle of a metricthread?

2 A)400b)600c)800d)10007)The angle between the flanks of a BSW threadprofile is?a)600b)900c)550d)4508)Usuallythe SECTION lines areinclined with horizontal )450b)350c)250d)1509)Which one of these is a temporary fastening?a)Weldingb)Nut-Boltc)Rivetingd )Pasting10)Which among theseisused for power transmission?a)Square threadb)BSWthreadc)Metric thread internald)Metric thread externalFILL IN THE BLANKS11)_____is theprojection used )Isometricprojectionb)Obliqueprojectionc )Perspectiveprojectiond)Inclinedprojecti on12)_____projectiongives the truesize of the )Isometricb)orthographicc)Obliqued)Persp ective13)The isometric length of 70 mm is )Equal totrue70 mmb)Less thantrue70 mmc)More thantrue70 mmd)Equal totrue100 )Theangle between the main scale and isometric )150b)300c)450d)90015)The shape of circle in isometric projection is )Cycloidb)Circlec)Parabolad)Ellipse16)Th e angle of chamfer is usually _____ with the base of a hexagonal )100b)200c)300d)40017)The full form of B.

3 S. W. thread )Bureau of StandardWidthb)Bureau of StandardWhitworthc)British Standard Widthd)British Standard Whitworth18)Knuckle thread is a modified form of a _____ screw )Squareb)BSWc)Metricd)V threadCHOOSE THE MOST APPROPRIATE FIGURE19)A vertical square prism with its axis perpendicular to HP and parallel to VP20)A horizontal solid21)A hemisphere resting on HP with its circular face on it22)An inverted solid23)A solid resting on one of its long edges24)A verticalhexagonal pyramid25) isometric projection of a horizontal squareSECTION BThis SectionBhas 24 Multiple Choice any 20 )a)The base edge of a cube is not equal to its )The base edge of a cube is equal to its )A cube has )A cube has an )a)Axis of the prism is perpendicular to )Axis of the prism is parallel to )Hexagonal ends of the prism are perpendicular to )Hexagonal ends of the prism are parallel to )a)The cylinder is resting on one of its long edges on )The cylinder is resting on with its base on )The cylinder is resting on with one of its rectangular faces on )The cylinder is resting on with its axis parallel to both and )a)Theaxisisinclined to )The axis is inclined to )The axis is perpendicular to and parallel to )The axis is perpendicular to and parallel to )a)One of the base sides of the pentagonal pyramid isperpendicularto )One of the base sidesof the pentagonal pyramid is parallel to )One of the base sides of the pentagonal prism isperpendicularto )One of the base sides of the pentagonal prism is parallel to )a)The common axis is perpendicular to HP and parallel to VPb)The commonaxis is perpendicular to VP and parallel to HPc)

4 The axis of the prism is parallel to HP and the axis of the pyramid is perpendicular to HPd)The axis of the prism is perpendicular to HP and the axis of the pyramid is parallel to HP32)a)The top solid issquare prism and the bottom solid is triangular )The top solid is triangular prism and the bottom solid is square )Both the solids are square )Both the solids are triangular )a)The size of common axis )The size of common axis is less )The size of common axis is more )The size of common axis THE CORRECT OPTION CORRESPONDING TO THE ORIENTATION OF THE GIVENISOMETRIC projection OF COMBINATION OF )a)Both the solids are vertical and one of the base edges of the prism is parallel to VP andnearer the )Both the solids are vertical and one of the base edges of the prism is perpendicular )Both the solids are vertical and one of the baseedges of the prism is parallel to VP andnear )Both the solids are vertical and two of the base edges of the prism are parallel to )a)The common axis is perpendicular to HP and two of the base edges of the prism areperpendicular to VPb)The common axis is perpendicular toVP and two of the base edges of the prism areperpendicular to VPc)The common axis is perpendicular toHP and two of the base edges of the prism areparallelto VPd)The common axis is perpendicular toVP and two of the base edges of the prism areparallelto VP36)a)A hemisphere is kept centrally on the top hexagonal surface of a hexagonal prism withits curved surface on )A sphere is kept centrally on the top hexagonal surface of a hexagonal prism with itscurved surface on )

5 A hemisphere is kept centrally on the toprectangular faceof a hexagonal prism with itscurved surface on )A sphere is kept centrally on the top rectangular face of a hexagonal prism with itscurved surface on )a)Avertical square pyramid is kept on a vertical circular )A vertical triangular pyramid is kept on a vertical square )A vertical square pyramid is kept on a vertical square )A vertical triangular pyramid is kept on a vertical circular )a)The isometric projection of a sphere is a circle whose diameter is equal to the isometricdiameter of the )The isometric projection of a sphere is a circle whose diameter is equal to the truediameter of the )The isometric projection of a sphere is a circle whose diameter is equal to half of thetrue diameter of the )The isometric projection of a sphere is a circle whose diameter is equal to double of thetrue diameter of the )a)Axis of both prism andcylinder are perpendicular to )Axis of both prism and cylinder are perpendicular to )Axis of prism is perpendicular toVP andaxisof cylinder is perpendicular to )Axis of prism is perpendicular to HP andaxisof cylinder is perpendicular to )a)A vertical cylinder of base diameter 40 mm is placed centrally on a hexagonal prismwhich is resting on HP with one of its long edges on )A vertical cylinder of base diameter 40 mm is placed centrally on a pentagonal prismwhich is restingon HP with one of its long edges on )A vertical cylinder of base diameter 40 mm is placed centrally on a pentagonal prismwhich is resting on HP with one of its rectangular faces on )

6 A vertical cylinder of base diameter 40 mm is placed centrally ona hexagonal prismwhich is resting on HP with one of its rectangular faces on )a)A verticalpentagonal pyramidwith one of itsbaseedges parallel to VP is placedcentrally on a horizontal square prism with its square ends parallel to )Avertical pentagonal pyramid with one of its base edges perpendicular to VP is placedcentrally on a horizontal square prism with its square ends perpendicular to )A vertical hexagonal pyramid with two of its base edges perpendicular to VP is placedcentrally on a horizontal square prism with its square ends parallel to )A vertical hexagonal pyramid with two of its base edges parallel to VP is placed centrallyon a horizontal square prism with its square ends perpendicular to STATEMENTS ARE GIVEN ONE LABELLED ASSERTION (A) AND THE OTHER LABELLEDREASON (R).

7 SELECT THE CORRECT ANSWER TO THE FOLLOWING QUESTIONS FROM THECODES (a), (b), (c) AND (d) AS GIVEN BELOW:a)Both A and Raretrue and R is the correct explanation of )Both A and Raretrue and R is not the correct explanation of )A is true but R is )A is false and R is also )A: Knuckle thread is a modification of a square : Knuckle threads are used in electric )A: The portion between the crest and root iscalled : The angle between the flanks in a metric thread is )A:The actual depth of square thread is given as ,where P represents the pitch of :The portion between crest and root is called as )A:Lefthandthread isrepresented by LH :Usually all the jewellery mating pieces have LH )A:Chamfering on a nut is the process of removing sharp corners by rounding off the :Chamfering is done on a nut to ensure the safety of the )A:A plain washer is a circular plate having a hole in its :If the nominal diameter of the bolt on which the washer is used is D, then the inner diameter ofthe washer is given as 2D+ )A:The angle of chamfer is 600with the base of a :A hexagonal headed boltcannotbe used with a hexagonal )A:Triple start threads are more useful when a quick advance is required in a screwed pair, thansingle start :If LrepresentsLead and P the pitch of thescrew threads,L = P in the case of singlestart = 3P in the case oftriplestart CThis SectionChas6 Multiple Choice THE FOLLOWING QUESTIONS AFTER READING THE GIVEN PASSAGE:Amitbuys afootballasagiftforhisbrother.

8 Itina squarebox(cube) afootballerandhealso lovestosketch. Hesketchesa3-Dmodelofthisfootballplaced ontheapexof atriangularpyramid, Printhis )What will be the minimumdimension of side ofthe gift-box (cube)?a)15 cmb)30 cmc)45 cmd)60 cm51)If he has used isometric projection method to obtain the 3 D model, then the size of the football drawnwillbea)doubleb)foreshortenedc)same d)halved52)Theisometric projection of the equilateral triangular baseof his modelwill bea)an equilateral triangleb)anisosceles trianglec)a scalene triangled)a right angled triangle53)Whatis the orientation of the common axis of these two solids?a)Axis parallel to HP and VPb)Axis perpendicular to HPc)Axis perpendicular to VPd)None of the above54)In case he uses a triangularprism instead of the pyramid, what will be the height of his trophy?a)It remainssameb)It becomes doublec)It becomes halfd)It becomes triple55)He used _____ in his isometric projection )True scaleb)Vernier scalec)Diagonal scaled) isometric scal