Theory Of Machine MCQ Questions & Answers

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Each section contains 100 MCQs on Theory of Machine .

Hart mechanism has

A) Eight links B) Six links C) Four links D) Twelve links

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

The periodic time is given by (where $$\omega $$ = Angular velocity of the particle in rad/s)

A) $$\frac{\omega }{{2\pi }}$$ B) $$\frac{{2\pi }}{\omega }$$ C) $$\omega \times 2\pi $$ D) $$\frac{\pi }{\omega }$$

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

Which of the following statement is wrong?

A) The difference between the maximum and minimum energies is called maximum fluctuation of energy B) The coefficient of fluctuation of speed is the ratio of maximum fluctuation of speed to the mean speed C) The variations of energy above and below the mean resisting torque line is known as fluctuation of energy D) None of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Which of the following statement is wrong?

A) A round bar in a round hole form a turning pair B) A square bar in a square hole form a sliding pair C) A vertical shaft in a foot step bearing forms a successful constraint D) All of the above

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In the two rotor system as shown in the below figure $$\left( {{l_1} < {l_2}} \right),$$ a node of vibration is situated
Theory of Machine mcq question image

A) Between $${l_1}$$ and $${l_2}$$ but nearer $${l_1}$$ B) Between $${l_1}$$ and $${l_2}$$ but nearer to $${l_2}$$ C) Exactly in the middle of the shaft D) Nearer to $${l_1}$$ but outside

Discuss

Answer & Solution

Answer: Option B

Solution:

The height of a Watt's governor is

A) Directly proportional to speed B) Directly proportional to (speed)² C) Inversely proportional to speed D) Inversely proportional to (speed)²

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

In multi V-belt transmission, if one of the belt is broken, we have to change the

A) Broken belt B) Broken belt and its adjacent belts C) All the belts D) There is no need of changing any one as remaining belts can take care of transmission of load

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

A spring controlled governor is found unstable. It can be made stable by

A) Increasing the spring stiffness B) Decreasing the spring stiffness C) Increasing the ball mass D) Decreasing the ball mass

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

A governor is said to be stable, if the

A) Radius of rotation of balls increases as the equilibrium speed decreases B) Radius of rotation of balls decreases as the equilibrium speed decreases C) Radius of rotation of balls increases as the equilibrium speed increases D) Radius of rotation of balls decreases as the equilibrium speed increases

Discuss

Answer & Solution

Answer: Option C

No explanation is given for this question. Let's Discuss on Board

In a hydrodynamic journal bearing, there is

A) A very thin film of lubricant between the journal and the bearing such that there is contact between the journal and the bearing B) A thick film of lubricant between the journal and the bearing C) No lubricant between the journal and the bearing D) A forced lubricant between the journal and the bearing

Discuss

Answer & Solution

Answer: Option B

No explanation is given for this question. Let's Discuss on Board

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Theory Of Machine MCQ Questions & Answers | Mechanical Engineering