Theory Of Machine MCQ Questions & Answers | Mechanical Engineering Page-5 section-5

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41.
The number of centers in a crank driven slider crank mechanism is

A. 0

B. 2

C. 4

D. 6

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42.
The contact ratio is given by

A. $$\frac{{{\text{Length of the path of approach}}}}{{{\text{Circular pitch}}}}$$

B. $$\frac{{{\text{Length of the path of recess}}}}{{{\text{Circular pitch}}}}$$

C. $$\frac{{{\text{Length of the arc of contact}}}}{{{\text{Circular pitch}}}}$$

D. $$\frac{{{\text{Length of the arc of approach}}}}{{\cos \varphi }}$$

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43.
The danger of breakage and vibration is maximum

A. Below the critical speed

B. Near the critical speed

C. Above the critical speed

D. None of these

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44.
In a differential band brake as shown in the below figure, the drum rotates anticlockwise and the greater tension T₁ acts at A and smaller tension T₂ at B. Length OA is greater than length OB. In order to apply the brake, the force P at C should

A. Be zero

B. Act in upward direction

C. Act in downward direction

D. None of the above

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45.
The cam follower generally used in aircraft engines is

A. Knife edge follower

B. Flat faced follower

C. Spherical faced follower

D. Roller follower

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46.
An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

A. Tip of the gear tooth and flank of pinion

B. Tip of the pinion and flank of gear

C. Flanks of both gear and pinion

D. Tip of both gear and pinion

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47.
A kinematic chain requires at least

A. 2 links and 3 turning pairs

B. 3 links and 4 turning pairs

C. 4 links and 4 turning pairs

D. 5 links and 4 turning pairs

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48.
In a four stroke I.C. engine, the turning moment during the compression stroke is

A. Positive throughout

B. Negative throughout

C. Positive during major portion of the stroke

D. Negative during major portion of the stroke

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49.
Typewriter constitutes

A. Machine

B. Structure

C. Mechanism

D. Inversion

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50.
The minimum force required to slide a body of weight W on a rough horizontal plane is

A. W sinθ

B. W cosθ

C. W tanθ

D. W cosecθ

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Theory Of Machine MCQ Questions & Answers | Mechanical Engineering

41. The number of centers in a crank driven slider crank mechanism is

Answer & Solution

42. The contact ratio is given by

Answer & Solution

43. The danger of breakage and vibration is maximum

Answer & Solution

44. In a differential band brake as shown in the below figure, the drum rotates anticlockwise and the greater tension T1 acts at A and smaller tension T2 at B. Length OA is greater than length OB. In order to apply the brake, the force P at C should

Answer & Solution

45. The cam follower generally used in aircraft engines is

Answer & Solution

46. An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

Answer & Solution

47. A kinematic chain requires at least

Answer & Solution

48. In a four stroke I.C. engine, the turning moment during the compression stroke is

Answer & Solution

49. Typewriter constitutes

Answer & Solution

50. The minimum force required to slide a body of weight W on a rough horizontal plane is

Answer & Solution

Read More Section(Theory of Machine)

41.
The number of centers in a crank driven slider crank mechanism is

42.
The contact ratio is given by

43.
The danger of breakage and vibration is maximum

44.
In a differential band brake as shown in the below figure, the drum rotates anticlockwise and the greater tension T₁ acts at A and smaller tension T₂ at B. Length OA is greater than length OB. In order to apply the brake, the force P at C should

45.
The cam follower generally used in aircraft engines is

46.
An involute pinion and gear are in mesh. If both have the same size of addendum, then there will be an interference between the

47.
A kinematic chain requires at least

48.
In a four stroke I.C. engine, the turning moment during the compression stroke is

49.
Typewriter constitutes

50.
The minimum force required to slide a body of weight W on a rough horizontal plane is