Theory Of Machine MCQ Questions & Answers | Mechanical Engineering Page-7 section-4

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61.
The magnitude of velocities of the points on a rigid link is

A. Directly proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center

B. Directly proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

C. Inversely proportional to the distance from the points to the instantaneous center and is parallel to the line joining the point to the instantaneous center

D. Inversely proportional to the distance from the points to the instantaneous center and is perpendicular to the line joining the point to the instantaneous center

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62.
When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

A. Tension in the tight side of the belt

B. Tension in the slack side of the belt

C. Sum of the tensions on the tight side and slack side of the belt

D. Average tension of the tight side and slack side of the belt

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63.
The maximum fluctuation of speed is the

A. Difference of minimum fluctuation of speed and the mean speed

B. Difference of the maximum and minimum speeds

C. Sum of maximum and minimum speeds

D. Variations of speed above and below the mean resisting torque line

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64.
The ratio of maximum fluctuation of speed to the mean speed is called

A. Fluctuation of speed

B. Maximum fluctuation of speed

C. Coefficient of fluctuation of speed

D. None of these

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65.
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

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66.
The advantage of the piston valve over the slide valve is that in the former case

A. Wear is less

B. Power absorbed is less

C. Both wear and power absorbed are low

D. The pressure developed being high provides tight sealing

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67.
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 between its members, whereas same does not 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 %

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68.
The approximate straight line mechanism is a

A. Four bar linkage

B. 6 bar linkage

C. 8 bar linkage

D. 3 bar linkage

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69.
When two links are connected by a pin joint, their instantaneous center lies

A. On their point of contact

B. At the center of curvature

C. At the center of circle

D. At the pin joint

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70.
When a slider moves on a fixed link having curved surface, their instantaneous centre lies

A. On their point of contact

B. At the centre of curvature

C. At the centre of circle

D. At the pin joint

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Theory Of Machine MCQ Questions & Answers | Mechanical Engineering

61. The magnitude of velocities of the points on a rigid link is

Answer & Solution

62. When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

Answer & Solution

63. The maximum fluctuation of speed is the

Answer & Solution

64. The ratio of maximum fluctuation of speed to the mean speed is called

Answer & Solution

65. Klein's construction can be used to determine acceleration of various parts when the crank is at

Answer & Solution

66. The advantage of the piston valve over the slide valve is that in the former case

Answer & Solution

67. Which of the following is false statement in respect of differences between machine and structure?

Answer & Solution

68. The approximate straight line mechanism is a

Answer & Solution

69. When two links are connected by a pin joint, their instantaneous center lies

Answer & Solution

70. When a slider moves on a fixed link having curved surface, their instantaneous centre lies

Answer & Solution

Read More Section(Theory of Machine)

61.
The magnitude of velocities of the points on a rigid link is

62.
When the belt is stationary, it is subjected to some tension known as initial tension. The value of this tension is equal to the

63.
The maximum fluctuation of speed is the

64.
The ratio of maximum fluctuation of speed to the mean speed is called

65.
Klein's construction can be used to determine acceleration of various parts when the crank is at

66.
The advantage of the piston valve over the slide valve is that in the former case

67.
Which of the following is false statement in respect of differences between machine and structure?

68.
The approximate straight line mechanism is a

69.
When two links are connected by a pin joint, their instantaneous center lies

70.
When a slider moves on a fixed link having curved surface, their instantaneous centre lies