GOVERNMENT POLYTECHNIC, VALSAD MECHANICAL ENGINEERING DEPARTMENT ASSIGNMENT SUB: MECHANICAL DRAFTING (C321901) TERM:172 1) When all the dimension are placed above the dimension line, it is called (a) Aligned system (b) Unidirection (c) All of the above (d) None of the above 2) For orthographic projections, B.I.S. recommends the following (a) 1 st angle projection (b) 2 nd angle projection (c) 4 th angle projection (d) 3 rd angle projection 3) A rectangle of 120mm * 60mm represents the development of the lateral surface of (a) A square prism of side 30mm (b) A hexagonal prism of side 20mm (c) A cylinder of diameter 120 π (d) All of these 4) The offset section is used for object. (a) Symmetrical (b) Inclined (c)unsymmetrical (d) All of above 5) The types of letters used in drawing are (a) Gothic (b) Roman (c)all of the above (d) none of the above 6) The curve of intersection of a vertical cylinder with an auxiliary vertical plane is (a) Point (b) straight line (c) A curved line (d) A closed loop 7) A typical set of mechanical working drawings includes. (a) exploded assembly (b) part details (c) parts list (d) all of the above 8) The Length: width in case of an arrow head is (a)1;1 (b) 2:1 (c) 3:1 (d) 4:1 9) In offset sections, offsets or bends in the cutting plane are all: (a) 90 degrees (b) 180 degrees (c) Either 90 or 180 degrees (d)30, 60, or 90 degrees 10) For orthographic projections, B.I.S. recommends the following (a) 1 st angle projection (b) 2 nd angle projection (c) 4 th angle projection (d) 3 rd angle projection 11) A enlarge scale will have a scale factor of (a) 2:1 (b) 1:1 (c) 1:10 (d). 1:2 12) When a vertical cylinder is penetrated by a horizontal cylinder, the top view of the curve of intersection is 13) Center lines are used to locate or represent the centers of. (a) arcs (b) circles (c) hidden round features (d) all of the above 14) When all the dimension are placed by breaking the dimension line, it is called (a) Aligned system (b) Unidirection (c) All of the above (d) None of the above 15) The solid having a polygon for a base and triangular lateral faces intersecting at a vertex is
(a) pyramid (b) cone (c) prism (d)orus 16) which of the following is not a pictorial drawing (a) Isometric (b Multiview (c) Perspective (d) Axonometrid 17) The internal angle of regular pentagone is (a) 72 (b) 108 (c) 120 (d) 150 18) A reduced scale will have a scale factor of (a) 2:1 (b) 1:1 (c) 10:1 (d) 1:2 19) The part list should include the - (a) Part number (b) Manufacturing material (c) All of the above (d) No. of parts needed 20) Number of faces in a dodecahedron are (a) 4 (b) 8 (c) 12 (d) 20 21) A cube is resting on a face in the HP with vertical faces equally inclined to the VP. It is cut by an A.I.P. the true shape of section view is (a) Triangle (b) rhombus (c) hexagon (d) any of these 22) If a semicirclular thin sheet is folded to form a cone, then the front view of the cone appears as, (a) Equilateral triangle (b) Isosceles triangle (c) Rectangle (d) Semicircle 23) lines are used to show the internal,invisible parts of the object. (a) Chain (b) Zigzag (c Dashed (d) Continuous Chain 24) The profile of a gear teeth is in the form of (a) Parabola (b) Spiral (c )Involute (d) Cycloid 25) The sectional view gives us of object. (a) Dimension (b) Internal detail (c ) None of the above (a) and (b) (d) All of the above 26) Orthographic projection is also known as (a)single view projection (b) Two view projection (c) Multi view projection (d) All of the 27) If the front view of a cone is represented by an equilateral triangle of 60 mm side. The area of its lateral surface is (a) 30 π (b) 60 π (c) 90 π (d) 120 π 28) A triangular prism resting on a rectangular face in the HP. It is cut by a horizontal plane. Its sectional top view is (a) Equilateral triangle (b) isosceles triangle (c) rectangle (d) none of these 29) The slop of letters indicated in drawing at an angle. (a) 60 (b) 30 (c) ) 29 (d) 75 30) The section view drawing in which one fourth of an object has been marked for removal is known as a section. (a)half (b) full (c) )Quarter (d) None of above 31) The primary unit of measurement for engineering drawings and design in the mechanical industries is the (a) Millimeter (b) Centimeter (c) Meter (d) Kilometer 32) Dimension line should not each other. (a) Parallel (b) Cross (c) Inclined (d) Perpendicular
33) Tetra hadron has equal equilateral triangular faces. (a) Two (b) Four (c) Six (d) Three 34) In first angle projection method the top view always the front view (a)above (b) below (c) )left (d) right 35) If right hand side view of an object is drawn on left side then the method of projection is known as (a)1st angle (b) 2nd angle (c) 4th angle (d) 3rdangle 36) The most common projection used in machine drawing is (a)isometric (b) Diametric (c) orthographic (d) Perspective 37) Projection of an object shown by three views is known as (a)perspective (b)isometric (c)oblique (d)orthographic 38) In orthographic projection the projector are to plane of projector (a)parallel (b) Perpendicular (c) )incline (d) All of the above 39) In multiview projections, XY line is also known as (a) Horizontal line (b) horizontal trace (c) reference line (d) all of these 40) The vertical distance between two points in top view is equal to horizontal distance for the same points in view. (a)bottom (b) left (c) Rear (d) Front 41) A solid having minimum number of faces is (a)tetrahedron (b) triangular prism (c) square pyramid (d) cube 42) In angle projection method, the object is kept between observer and projected surface (a)1 st angle (b) 2nd angle (c) 4th angle (d) 3rdangle 43) The solid will have two dotted lines in the top view when it is resting on its face in the H.P (A)Square pyramid (B) pentagonal pyramid (c) hexagonal pyramid (d) all of these 44) When the section plane are parallel to HP than view indicates its true shape of section. (a) Side (b) Top (c) Rear (d) Front 45) The Top view remains above X-Y line in projection method (a) 1 st angle (b) 2 nd angle (c) 4 th angle (d) 3 rd angle 46) This type of section is not in direct projection from the view containing the cutting plane: (a) revolved section (b) removed section (c) broken-out section (d) full section 47) Hidden lines are drawn as (a) Dashes narrow line (b) Long- dased dotted wide line (c) Dashes wide lines(d) Long- dased double dotted wide line 48) The imaginary line joining the centre of two base of the prism is (a) Apex (b) Edge (c) Axis (d) Generator 49) If cylinder axis is perpendicular to H.P. its top view will be (a) Rectangle (b)point (c)line (d) Circle 50) has as many numbers of triangular faces as number of base sides. (a) Pyramid (b)prism (c) Cylinder (d). All of the above 51) Methods for the development of solids are (a) Parallel line method (b) Radial line method (c) Triangulation method (d) All of them 52) The angel of hatching line is kept (a)30 (b)75 (c) 60 (d)45 53) has one base. (a) pyramid (b)prism (c)cylinder (d) All of the above
54) A square pyramid is resting on a face in the V.P. the number of dotted lines will appear in the front view (a) one (b) two (c) three (d) four 55) The hatching between two meshing surfaces are (a)in the same direction (b) In the opposite direction (c)none of above (d) All of above 56) The A2 size of drawing sheet has the following size: (a) 841mm X 1189mm (b) 420mm X 594mm (c) 297mm X 420m (d) 210mm X 297mm circumference 57) Surface development of a cone is drawn by taking length as a radius. (a) Axis (b) Diameter (c) generator (d) circumference 58) Surface development of a prism is (a)rectangle (b)triangle (c) circle (d) None of the above 59) Which of the following describes the theory of orthographic projection? (a) Projectors parallel to each other and perpendicular to plane of projection. (b) Projectors parallel to each other and parallel to plane of projection. (c) Projectors parallel to each other and oblique to plane of projection. (d) Projectors perpendicular to each other and parallel to plane of projection. 60) In orthographic projection,the elevation is obtained on a plane called (a) Horizontal (b) vertical (c) profile (d) Auxilary 61) A square pyramid 45 mm side and axis 60 mm long, resting on its base in the HP is cut by a horizontal section plane passing through a point on the axis 20 mm below the apex. Its true shape of section is a square of side (a)15mm (b) 30 mm (c) 40 mm (d) 45 mm 62) Surface development of a pyramid is drawn by taking as a radius. (a) Slant edge (b) Axis (c) Base edge (d) Vertical edge 63) Intersection of and is a straight line. (a) Prism, pyramid (b) Pyramid, cylinder (c) Prism, cylinder (d) Cylinder, cylinder 64) Grade pencil is known as medium grade pencil. (a) 5H (b) 3H (c) HB (d) 5B 65) A rectangle of 120mm * 60mm represents the development of the lateral surface of (a) A square prism of side 30mm (b) A hexagonal prism of side 20mm (c) A cylinder of diameter 120 π (d) All of these 66) A right circular cone resting on a generator in the HP and axis inclined at 450 to the VP. The angle between the reference line and top view of the axis will be (a)less than 45 (b) 45 (c) more than 45 (d) any of these 67) When a vertical cylinder is penetrated by a horizontal cylinder, the top view of the curve of intersection is 68) Method of obtaining the line of intersection is (a)line method (b) cutting plane method (c) a & b (d) none of above 69) A pyramid is cut by a plane parallel to its base removing the apex, the remaining part is known as (a)truncated (b) frustum (c) sectioned (d) prism 70) When all the dimension are placed by breaking the dimension line, it is called (a) Aligned system (b) Unidirection (c) All of the above (d) none of the above
71) Circle will appear on an isometric drawing as a (a)ellipse (b) cycloid (c) circle (d) parabola 72) The A4 size of drawing sheet has the following size: (a) 594mm X 841mm (b) 420mm X 594mm(c) 297mm X 420mm (d) 210mm X 297mm 73) The study of intersection of surfaces helps in (a) Sheet metal work (b) Building drawing (c) Architectural drawing (d) All of these 74) Methods for the development of solids are (a) Parallel line method (b) Radial line method (c) Triangulation method (d) All of them 75) A right circular cone resting on a generator in the HP and axis inclined at 45 to the VP. The angle between the reference line and top view of the axis will be (a) Less than 45 (b) more than 45 (c) 45 (d) any of these 76) The curve of intersection of a vertical cylinder with an auxiliary vertical plane is (a)point (b) straight line (c) A curved line (d) A closed loop 77) If the front view of an object exihibits width and height,then what dimensions of An object are exihibited by a right side view? (a)length and width (b) length and height (c) height and width (d) length and bredth 78) Number of faces in a dodecahedron are (a) 4 (B) 8 (C) 12 (d) 20 79) A cone resting on its base on the HP is cut by a section plane parallel to VP has its sectional front view (a)ellipse (b) parabola (c) hyperbola (d) semicircle 80) The edges containing the corners of base & top face of prism called (a) Shorter edges (b) Longer edges (c) Top edges (d) Base edges 81) are projected in cylinder and cone. Generators (B) slant face (C) corner (d) Slant edge 82) Funnel is made by joining two (a) pyramid (B) cylinder (C) Prism (d) Cone 83) A cone resting on its base in the H.P is penetrated by a horizontal cylinder. The top view of the curve of intersection results in 84) Which of the following method is not used for obtaining curves of intersection? (a) Line method (b) curved method (c) generator method (d) cutting plane method 85) The top view of an object should typically be drawn (a) to the right of front view (b) directly below the front view (c) anywhere on the same page (d) on a separate piece of paper 86) The top and right side views have common dimensions of (a) height and width (b) width and depth (c) height (d) depth 87) The Study of Intersection of cone by plane is (a) Conic Section (b) Helix (c) Cycloid (d) None 88) This type of section is not in direct projection from the view containing the cutting plane: (a) revolved section (b) removed section (c) broken-out section (d) full section 89) To draw angles it is used (a) Divider (b) Protector (c) Stock (d) French Curve 90) Object can be viewed from how many directions to create different 2 dimensional views. (a) 2 (b) 3 (c) 4 (d) 6