Theory Of Machine MCQ Questions & Answers

1

Tangential acceleration direction is

A) Along the angular velocity B) Opposite to angular velocity C) May be any one of these D) Perpendicular to angular velocity

Discuss

Answer & Solution

Answer: Option C

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

2

The essential condition of placing the two masses, so that the system becomes dynamically equivalent, is (where $${l_1}$$ and $${l_2}$$ = Distance of two masses from the centre of gravity of the body and k_G = Radius of gyration of the body)

A) $${l_1} = {{\text{k}}_{\text{G}}}$$ B) $${l_2} = {{\text{k}}_{\text{G}}}$$ C) $${l_1}{l_2} = {{\text{k}}_{\text{G}}}$$ D) $${l_1}{l_2} = {\text{k}}_{\text{G}}^2$$

Discuss

Answer & Solution

Answer: Option D

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

3

The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body and $$\delta $$ = Static deflection of the body)

A) $$\frac{1}{{2\pi }} \times \sqrt {\frac{{\text{s}}}{{\text{m}}}} $$ B) $$\frac{1}{{2\pi }} \times \sqrt {\frac{{\text{g}}}{\delta }} $$ C) $$\frac{{0.4985}}{{\sqrt \delta }}$$ D) Any one of these

Discuss

Answer & Solution

Answer: Option D

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

4

The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship.

A) Vertically and parallel B) Vertically and perpendicular C) Horizontally and parallel D) Horizontally and perpendicular

Discuss

Answer & Solution

Answer: Option D

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

5

When two pulleys of different diameters are connected by means of an open belt, the angle of contact at the ________ pulley must be taken into consideration.

A) Smaller B) Larger C) Either A or B D) None of these

Discuss

Answer & Solution

Answer: Option A

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

6

The Ackermann steering mechanism is preferred to the Davis type in automobiles because

A) The former is mathematically accurate B) The former is having turning pair C) The former is most economical D) The former is most rigid

Discuss

Answer & Solution

Answer: Option B

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

7

When the axes of the first and last wheels are coaxial, then the train is known as

A) Simple train of wheels B) Compound train of wheels C) Reverted gear train D) Epicyclic gear train

Discuss

Answer & Solution

Answer: Option C

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

8

A completely constrained motion can be transmitted with.

A) 1 link with pin joints B) 2 links with pin joints C) 3 links with pin joints D) 4 links with pin joints

Discuss

Answer & Solution

Answer: Option D

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

9

The power transmitted by a belt is maximum when the maximum tension in the belt is _________ of centrifugal tension.

A) One-third B) Two-third C) Double D) Three times

Discuss

Answer & Solution

Answer: Option D

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

10

Which of the following is a spring controlled governor?

A) Hartnell governor B) Hartung governor C) Wilson-Hartnell governor D) All of these

Discuss

Answer & Solution

Answer: Option D

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

Theory Of Machine MCQ Questions & Answers | Mechanical Engineering