Free Printable BRAKE AND CLUTCHES

1.

1-When brakes are applied on a moving vehicle; the kinetic energy is converted to

a)

(A) Mechanical energy

b)

(B) Heat energy

c)

(C) Electrical energy

d)

(D) Potential energy

e)

(Ans: B)

2.

2-The force required to stop a vehicle is dependent on

a)

(A) the weight of vehicle

b)

(B) the deceleration rate

c)

(C) both (A) and (B)

d)

(D) None of the above

e)

(Ans: C)

3.

3-The following is not a drum brake

a)

(A) External contracting brake

b)

(B) Internal expanding brake

c)

(C) Disc brake

d)

(D) All of the above

e)

(Ans: C)

4.

5-In disc brake, the disc is attached to the

a)

(A) wheel

b)

(B) axle

c)

(C) suspension system

d)

(D) none of the above

e)

(Ans: B)

5.

6-The mechanical brakes are operated by means of

a)

(A) levers

b)

(B) bell cranks

c)

(C) cams

d)

(D) all of the above

e)

(Ans: D)

6.

The following factor(s) contribute to the effectiveness of the brakes

a)

(A) Area of brake linings

b)

(B) Radius of car wheel

c)

(C) Amount of pressure applied to shoe brakes

d)

(D) All of the above

e)

(Ans: D)

7.

1-The following is not a Friction clutch

a)

(A) Fluid clutch

b)

(B) Centrifugal clutch

c)

(C) Cone clutch

d)

(D) Disc clutch

e)

(Ans: A)

8.

An internal expanding shoe brake is mainly used in

a)

A Hoist

b)

B Conveyor

c)

C Vehicle

d)

D All of the above

e)

D All of the above

9.

In internal expanding shoe brake, the actuating force is usually provided by means of

a)

A A hydraulic cylinder

b)

B A cam mechanism

c)

C both (A) and (B)

d)

D None of the above

e)

C both (A) and (B)

10.

The brake drum is made of

a)

A Aluminium

b)

B Steel

c)

C Cast iron

d)

D All of the above

e)

D All of the above

11.

For anticlockwise rotation of brake drum in block brake, the actuating force or braking effort is ___ that of clockwise direction.

a)

A More than

b)

B Less than

c)

C Equal to

d)

D Any of the above

e)

A More than

12.

The braking torque depends upon

a)

A Final velocity of the system

b)

B Initial velocity of the system

c)

C The mass of the system

d)

D All of the above

e)

D All of the above

13.

Internal and External expanding shoe brakes are

a)

A Axial brakes

b)

B Radial brakes

c)

C Both (A) and (B)

d)

D None of the above

e)

B Radial brakes

14.

The energy absorbed by the brake is

a)

A Potential energy

b)

B Kinetic energy

c)

C both (A) and (B)

d)

D None of the above

e)

C both (A) and (B)

15.

Brake is used to ____ the energy possessed by a moving system or mechanism by means of friction.

a)

A Release

b)

B Minimize

c)

C Maximize

d)

D Absorb

e)

D Absorb

16.

A cone clutch consists of inner conical surface and outer cylindrical surface.

a)

a) Both cylindrical

b)

b) Both conical

c)

c) Outer conical and inner cylindrical

d)

d) True

e)

b) Both conical

17.

Band brakes require _____ maintenance.

a)

a) Little

b)

b) Zero

c)

c) Much

d)

d) None of the listed

e)

a) Little

18.

Calculate the braking torque if tension in the two sides is 3500N and 1980N with radius of drum being 160mm.

a)

a) None of the mentioned

b)

b) 243.20N-m

c)

c) 223.4N-m

d)

d) 278.6N-m

e)

Answer: b

Explanation: Braking torque=(3500-1980)x160/1000.

19.

Hydraulic brakes function on the principle of

a)

(A) Law of conservation of momentum

b)

(B) Law of conservation of energy

c)

(C) Pascal’s law

d)

(D) None of the above

e)

(C) Pascal’s law

20.

The following factor(s) contribute to the effectiveness of the brakes

a)

(A) Area of brake linings

b)

(B) Radius of car wheel

c)

(C) Amount of pressure applied to shoe brakes

d)

(D) All of the above

e)

(D) All of the above

21.

Double block brake is a type of

a)

a. Band brake

b)

b. Internal expanding shoe brake

c)

c. Shoe brake

d)

d. None of the above

e)

c. Shoe brake

22.

Which of these is not a type of clutch?

a)

a) Single disc

b)

b) Conical

c)

c) Centrifugal

d)

d) Cylindrical

e)

d) Cylindrical

BRAKE AND CLUTCHES

Total questions: 22

Worksheet time: 11mins

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