Mechanical Engineering McqsTheory of Machines 100+ MCQ & Answer Theory Of Machines | page-10 |Mechanical Engineering MCQ And Answer January 27, 2025 DSN MARATHI 91. According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centers lie on A. a triangle B. a point C. two lines D. a straight line Answer Option : D 92. In a rigid link OA, velocity of A w.r.t. will be A. parallel to OA B. perpendicular to OA C. at 45° to OA D. along AO Answer Option : B 93. Two systems shall be dynamically equivalent when A. the mass of two are same B. e.g. of two coincides C. M.I. of two about an axis through e.g. is equal D. all of the above Answer Option : D 94. The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line A. joining the corresponding points B. perpendicular to line as per (a) C. not possible to determine with these data D. at 45° to line as per (a) Answer Option : A 95. The absolute acceleration of any point P in a link about center of rotation 0 is A. along PO B. perpendicular to PO C. at 45° to PO D. none of the above. Answer Option : D 96. The direction of Corioli’s component of acceleration is the direction A. of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link B. along the centripetal acceleration C. along tangential acceleration D. along perpendicular to angular velocity Answer Option : A 97. In a shaper mechanism, the Corioli’s component of acceleration will A. not exist B. exist C. depend on position of crank D. unpredictable Answer Option : B 98. Klein’s construction can be used to determine acceleration of various parts when the crank is at A. inner dead centre B. outer dead centre C. right angles to the link of the stroke D. all of the above. Answer Option : D 99. Corioli’s component acts A. perpendicular to sliding surfaces B. along sliding surfaces C. somewhere in between above two D. unpredictable Answer Option : A 100. The sense of Corioli’s component is such that it A. leads the sliding velocity vector by 90° B. lags the sliding velocity vector by 90° C. is along the sliding velocity vector D. leads the sliding velocity vector by 180° Answer Option : A
91. According to Kennedy’s theorem, if three bodies have plane motions, their instantaneous centers lie on A. a triangle B. a point C. two lines D. a straight line Answer Option : D
92. In a rigid link OA, velocity of A w.r.t. will be A. parallel to OA B. perpendicular to OA C. at 45° to OA D. along AO Answer Option : B
93. Two systems shall be dynamically equivalent when A. the mass of two are same B. e.g. of two coincides C. M.I. of two about an axis through e.g. is equal D. all of the above Answer Option : D
94. The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line A. joining the corresponding points B. perpendicular to line as per (a) C. not possible to determine with these data D. at 45° to line as per (a) Answer Option : A
95. The absolute acceleration of any point P in a link about center of rotation 0 is A. along PO B. perpendicular to PO C. at 45° to PO D. none of the above. Answer Option : D
96. The direction of Corioli’s component of acceleration is the direction A. of relative velocity vector for the two coincident points rotated by 90° in the direction of the angular velocity of the rotation of the link B. along the centripetal acceleration C. along tangential acceleration D. along perpendicular to angular velocity Answer Option : A
97. In a shaper mechanism, the Corioli’s component of acceleration will A. not exist B. exist C. depend on position of crank D. unpredictable Answer Option : B
98. Klein’s construction can be used to determine acceleration of various parts when the crank is at A. inner dead centre B. outer dead centre C. right angles to the link of the stroke D. all of the above. Answer Option : D
99. Corioli’s component acts A. perpendicular to sliding surfaces B. along sliding surfaces C. somewhere in between above two D. unpredictable Answer Option : A
100. The sense of Corioli’s component is such that it A. leads the sliding velocity vector by 90° B. lags the sliding velocity vector by 90° C. is along the sliding velocity vector D. leads the sliding velocity vector by 180° Answer Option : A
