Test: Friction Clutches - 1


10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering | Test: Friction Clutches - 1


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Attempt Test: Friction Clutches - 1 | 10 questions in 30 minutes | Mock test for Mechanical Engineering preparation | Free important questions MCQ to study Topicwise Question Bank for Mechanical Engineering for Mechanical Engineering Exam | Download free PDF with solutions
QUESTION: 1

A jaw clutch is essentially a

Solution:
QUESTION: 2

The cone clutches have become obsolete because of

Solution:
QUESTION: 3

Which of the followings is not a friction clutch?

Solution:
QUESTION: 4

Which of the following is not a characteristic of a positive contact clutch?

Solution:

A positive contact clutch does not develop heat appreciably during use.

QUESTION: 5

The clutch used in farm tractors and machine tools

Solution:
QUESTION: 6

The frictional torque transmitted by a disc clutch, considering uniform pressure, is the same as that for a

Solution:
QUESTION: 7

The pressure distribution over the entire surface area of the friction disk according to uniform wear theory is illustrated in

Solution:

As per uniform wear theory,
Pr - constant

QUESTION: 8

The torque transmitting capacity of a friction clutch can be increased by following methods except

Solution:

Concept: The torque transmitting capacity of friction clutches is given by

T = μ W Rm

Now the torque transmitting capacity can be increased by

  • Increasing μ (coefficient of friction)
  • Increasing W (pressure on plate)
  • Increasing Rm (mean radius)
QUESTION: 9

A single pole clutch consists of only one pair of contacting surfaces. Assuming uniform wear theory, the torque transmitting capacity of the clutch is maximum when (d/D) is equal to

Solution:

(Assuming uniform wear theory)

for maximum Mt,

QUESTION: 10

Select the wrong statement:

Solution:

A major portion of the life of friction lining comes under uniform wear criterion.

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