Mechanical Engineering McqsTheory of Machines 100+ MCQ & Answer Theory Of Machines | page-07 |Mechanical Engineering MCQ And Answer January 27, 2025 DSN MARATHI 61. The locus of a point on a thread unwound from a cylinder will be A. a straight line B. a circle C. involute D. cycloidal Answer Option : C 62. To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use A. spur gear B. spiral gear C. bevel gear D. worm gear Answer Option : D 63. For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimidstroke respectively, is A. maximum and zero B. zero and maximum C. minimum and maximum D. zero and minimum Answer Option : A 64. 00004 A. To obviate axial thrust, following gear drive is used B. double helical gears having opposite teeth C. double helical gears having identical teeth D. single helical gear in which one of the teeth of helix angle a is more Answer Option : A 65. Which of the following is false statement in respect of differences between machine and structure A. Machines transmit mechanical work, whereas structures transmit forces B. In machines, relative motion exists be-tween its members, whereas same does hot exist in case of structures C. Machines modify movement and work, whereas structures modify forces D. Efficiency of machines as well as structures is below 100% Answer Option : D 66. If D1 and D2 be the diameters of driver and driven pulleys, then belt speed is proportional to A. D1/D2 B. D1-D2. C. D1 D. D1+D2. Answer Option : D 67. If the opposite links of a four bar linkage are equal, the links will always form a A. triangle B. rectangle C. parallelogram D. pentagon Answer Option : C 68. A cam with a roller follower would con stitute following type of pair A. lower pair B. open pair C. close pair D. higher pair Answer Option : 4 69. A chain comprises of 5 links having 5 joints. Is it kinematic chain ? A. yes B. no C. it is a marginal case D. data are insufficient to determine it Answer Option : B 70. The main disadvantage of the sliding pair is that it is A. bulky B. wears rapidly C. difficult to manufacture D. (a) and (b) above Answer Option : D
61. The locus of a point on a thread unwound from a cylinder will be A. a straight line B. a circle C. involute D. cycloidal Answer Option : C
62. To transmit power from one rotating shaft to another whose axes are neither parallel nor intersecting, use A. spur gear B. spiral gear C. bevel gear D. worm gear Answer Option : D
63. For S.H.M. cam, the acceleration of the follower at the ends of the stroke and aimidstroke respectively, is A. maximum and zero B. zero and maximum C. minimum and maximum D. zero and minimum Answer Option : A
64. 00004 A. To obviate axial thrust, following gear drive is used B. double helical gears having opposite teeth C. double helical gears having identical teeth D. single helical gear in which one of the teeth of helix angle a is more Answer Option : A
65. Which of the following is false statement in respect of differences between machine and structure A. Machines transmit mechanical work, whereas structures transmit forces B. In machines, relative motion exists be-tween its members, whereas same does hot exist in case of structures C. Machines modify movement and work, whereas structures modify forces D. Efficiency of machines as well as structures is below 100% Answer Option : D
66. If D1 and D2 be the diameters of driver and driven pulleys, then belt speed is proportional to A. D1/D2 B. D1-D2. C. D1 D. D1+D2. Answer Option : D
67. If the opposite links of a four bar linkage are equal, the links will always form a A. triangle B. rectangle C. parallelogram D. pentagon Answer Option : C
68. A cam with a roller follower would con stitute following type of pair A. lower pair B. open pair C. close pair D. higher pair Answer Option : 4
69. A chain comprises of 5 links having 5 joints. Is it kinematic chain ? A. yes B. no C. it is a marginal case D. data are insufficient to determine it Answer Option : B
70. The main disadvantage of the sliding pair is that it is A. bulky B. wears rapidly C. difficult to manufacture D. (a) and (b) above Answer Option : D
