Dynamics of Machinery (3151911) MCQs

MCQs of Balancing of Reciprocating Masses

Showing 11 to 20 out of 49 Questions
1 2 3 4 5
11.

What is the effect of the partial balancing of the reciprocating parts?

(a)

Unbalanced primary force
(b)

Unbalanced secondary force
(c)

Balanced primary force
(d)

Balanced secondary force
Answer:

Option (a)

12.

In balancing of a single-cylinder engine, the rotating unbalance is ____________.

(a)

completely made zero and so also the reciprocating unbalance
(b)

completely made zero and the reciprocating unbalance is partially reduced
(c)

partially reduced and the reciprocating unbalance is completely made zero
(d)

partially reduced and so also the reciprocating unbalance
Answer:

Option (b)

13.

In locomotives, the ratio of the connecting rod length to the crank radius is kept very large in order to

(a)

minimize the effect of primary forces
(b)

minimize the effect of secondary forces
(c)

have perfect balancing
(d)

to start the locomotive quickly
Answer:

Option (b)

14.

In an inside cylinder locomotive, the position of the driving wheels is _________.

(a)

outside to cylinder
(b)

inside to cylinder
(c)

down to cylinder
(d)

above the cylinder
Answer:

Option (a)

15.

In an outside cylinder locomotive, the position of the driving wheels is _________.

(a)

outside to cylinder
(b)

inside to cylinder
(c)

down to cylinder
(d)

above the cylinder
Answer:

Option (b)

16.

The primary unbalanced force is maximum when the angle of inclination of the crank with the line of stroke is

(a)

0° and 90°
(b)

0° and 180°
(c)

90° and 180°
(d)

180° and 360°
Answer:

Option (b)

17.

What is the total no. of cylinders in a locomotive having crank at right angles?

(a)

1
(b)

2
(c)

3
(d)

4
Answer:

Option (b)

18.

A single or uncoupled locomotive is one, in which the effort is transmitted to _____.

(a)

both the pair of wheels
(b)

alternatively between the wheels
(c)

one pair of wheels
(d)

neither of the wheels
Answer:

Option (c)

19.

In coupled locomotives, the driving wheels are connected to the leading and trailing wheel by an _______ coupling rod.

(a)

inside
(b)

outside
(c)

sideway
(d)

bottom
Answer:

Option (b)

20.

For a coupled locomotive, the driving wheels and the leading and trailing wheels are connected by an inside coupling rod.

(a)

True
(b)

False
Answer:

Option (b)

Showing 11 to 20 out of 49 Questions
1 2 3 4 5