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Test: Friction Clutches - 2 - Mechanical Engineering MCQ


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10 Questions MCQ Test Topicwise Question Bank for Mechanical Engineering - Test: Friction Clutches - 2

Test: Friction Clutches - 2 for Mechanical Engineering 2024 is part of Topicwise Question Bank for Mechanical Engineering preparation. The Test: Friction Clutches - 2 questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Friction Clutches - 2 MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Friction Clutches - 2 below.
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Test: Friction Clutches - 2 - Question 1

A plate clutch consists of one pair of contacting surfaces. The inner and outer diameter of the friction disk are 100 and 200 mm respectively. The coefficient of friction is 0.2 and the permissible intensity of pressure is 1 N/mm2. Assuming, uniform wear theory, what is the operating force?

Detailed Solution for Test: Friction Clutches - 2 - Question 1

Operating force,

[Pa = Permissible pressure intensity]

Test: Friction Clutches - 2 - Question 2

In designing a plate clutch, assumption of uniform wear conditions is made because

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Test: Friction Clutches - 2 - Question 3

In a multi disc clutch, the recommended number of clutch discs for applications requiring the starting of load from rest is limited to

Test: Friction Clutches - 2 - Question 4

The ratio of inner to outer radii of a clutch is normally taken between

Detailed Solution for Test: Friction Clutches - 2 - Question 4

If equal importance is given to durability and torsional moment output, (r1/r2) is taken as 0.48. In practice, (r1/r2) is usually kept between 0.6 and 0.7.

Test: Friction Clutches - 2 - Question 5

Which is not the advantage of wet friction clutch?

Detailed Solution for Test: Friction Clutches - 2 - Question 5

• The we friction is about one-third of dry friction clutch.
• The torque capacity of dry clutch is more as compared with the torque capacity of wet clutch of the same dimensions.
• In wet clutches, the lubricating oil carries away the frictional heat.

Test: Friction Clutches - 2 - Question 6

For a cone clutch utilizing leather to asbestos lining, the recommended semi-cone angle is

Test: Friction Clutches - 2 - Question 7

All of the following statements are correct, except

Test: Friction Clutches - 2 - Question 8

Which one of the following is not a friction clutch

Detailed Solution for Test: Friction Clutches - 2 - Question 8

Jaw clutch is positive clutch, Jaw clutch has no slip, no heat generation.

Test: Friction Clutches - 2 - Question 9

In a multiple disc clutch nand n2 are the number of discs on the driving and driven shafts respectively. The number of pair of contact surfaces will be

Detailed Solution for Test: Friction Clutches - 2 - Question 9

Number of pair in contact = n1 + n2 - 1

Test: Friction Clutches - 2 - Question 10

On the motors with low starting torque, the type of the clutch to be used is

Detailed Solution for Test: Friction Clutches - 2 - Question 10

Centrifugal clutch is used where low starting torque is required.
Centrifugal clutch is used practically in mopeds.

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