# AMVI Main 2017

 1 The neutral axis of the cross-section of a beam is that axis at which the bending stress is :  A. zero B. minimum C. maximum D. infinite
 2 Moment of inertia of quarter circle of radius 'r' about 'x' axis passing through centroid is : A. Ix=0.055 r4 B. Ix=0.11 r4 C. Ix= 0.4 r4 D. None of these
 3 Thin cylindrical shell of length 'L' diameter 'd' and thickness 't', subjected to internal pressure P. What is the change in length if it is made up of material having modulus of elasticity E and poisson's ratio 'μ' ? A. B. C. D. None of these
 4 Angle between major principal plane and minor principal plane for strained body is : A. 45° B. 30° C. 60° D. 90°
 5 A steel plate is bent into a circular arc of radius 10 meters. If the plate section be 120 mm wide and 20 mm thick, the maximum stress induced will be : (Take E=2 x 105 N/mm2) A. 400 N/mm2 B. 200 N/mm2 C. 100 N/mm2 D. 150 N/mm2
 6 The ratio of critical load of columns of same dimensions and same material. One is fixed at both ends and other is fixed at one end and hinged at other end : A. B. 2 C. 0.5 D. 4
 7 Moment of inertia of hollow rectangular section having outer depth 'D' and breadth ‘B' and dimensions of inner rectangle are depth'd' and width 'b' about horizontal axis passing through centroid is : A. B. C. D.
 8 The ratio of the largest load in a test to the original cross-sectional area of the test piece is : A. elastic unit  B. yield stress C. ultimate stress D. breaking stress
 9 The shear force diagram for a simply supported beam carrying a uniformly distributed toad of w per unit length, consists of: A. one right angled triangle B. two right angled triangles C. one equilateral triangle D. two equilateral triangles
 10 The stress at which the extension of the material takes place considerably as compared to the increase in load, is called ; A. elastic limit B. yield point C. ultimate point D. breaking point
 11 The shear stress distribution over a beam cross-section is shown in figure. The beam is of :  A. equal flange I-section B. unequal flange I-section C. circular cross-section D. T - section
 12 The relation between Young's modulus (E), shear mod alus (G) & bulk modulus (K) is given by : A. B. C. D.
 13 What is the shape of shearing stress distribution across w rectangular cross-section beam ? A. Triangular B. Parabolic only C. Rectangular only D. A combination of rectangular and parabolic shape
 14 A beam has triangular cross-section having base b & altitude h. If the section of beam is subjected to a shear force F, the shear stress at the level of neutral axis in the cross-section is given by : A. B. C. D.
 15 What is the ratio of maximum shear stress to average shear stress in a beam of circular section ? A. 1.5 B. 2 C. 1.33 D. 2.5
 16 Defect such as slight eccentricity, a wavy surface, or a slight taper caused by previous operations can be corrected by : A. Grinding operation B. Lapping operation C. Honing operation D. Turning operation
 17 Chipping of tool may occur due to : (a) tool material is too brittle (b) As a result of crack that is already in the tool  (c) Excessive static loading of the tool  (d) Weak design of tool, such as high positive rake angle  Answer Options : A. Only (a) and (b) B. Only (b) and (c) C. Only (a) and (c) D. All (a), (b), (c) and (d)
 18 'Microstoning is the following type of operation : A. Roughing B. Finishing C. Super-finishing D. Polishing
 19 In orthogonal cutting system the cutting edge is : A. In line with direction of tool travel B. Perpendicular to direction of tool travel C. Perpendicular to shear plane D. Perpendicular to direction of depth of cut
 20 Colour code for part to be machined for wooden patterns is represented by following colour : A. Red or orange B. Yellow  C. Black on core prints D. Green

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