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  • 問題数 50 • 11/2/2023

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    問題一覧

  • 1

    Type of brake under the category of power brake is known as

    D. servo brake

  • 2

    Hydrodynamic brakes is the major type of

    C. fluid brake

  • 3

    The lining of a brake shoe

    A. can be changed

  • 4

    There are plates in a multi plate clutch.

    C. more than one

  • 5

    The practical length of shoe is limited to about

    C. 120°

  • 6

    A clutch that has a disadvantage of heavier rotary masses is known as

    B. Multiple disc clutch

  • 7

    which of the following is used in the suspension system?

    D. Shock absorbers

  • 8

    It is considered as the simplest type of mechanical brake.

    D. Band brake

  • 9

    The maintenance of mechanical brake is

    B.economical

  • 10

    In motor vehicles, there is a, brake. in addition of foot

    B. hand brake

  • 11

    The most common defects of clutch:

    D. all of the above

  • 12

    for overload protection of motors and engine. sup Used to protect a machors and engine." jamming aig

    D. Slip clutch

  • 13

    If the angle of contact is, the pressure between the brakes shoe and the drum can not be considered uniform

    B. greater than 60 deg

  • 14

    The SAE recommends an angle of for cone clutches faced with leather or asbestos or having cork inserts.

    C. 12.5°

  • 15

    • In motor vehicles, it is very common practice to use a

    D. single plate clutch

  • 16

    Suitable for mine hoists and other services where heavy loads are accompanied by severe shock.

    Band clutch

  • 17

    In the mechanical brake system the main function is of

    A. cam

  • 18

    A hydraulic clutch doesn't incorporate a

    A. clutch plate

  • 19

    The friction devices used to connect shafts.

    B. Clutches

  • 20

    Clutch, gear box, differential etc. are the parts of

    D. transmission system

  • 21

    The frictional forces depends on coefficient of friction and

    B. normal force

  • 22

    What type of ol is used in the hydraulic brake system?

    A. Brake oil

  • 23

    Sues of brakes that is capable otarting ins the motion of, machine member as wel as relarding is moton shit,

    D. Mechanical brake

  • 24

    is. Supplementary Question It is used to stop the motion of a moving object.

    C. Brakes

  • 25

    The part of an automobile disc clutch that presses against the flywheel is referred to as

    C. pressure plate

  • 26

    Hydraulic clutches are used in vehicles.

    C. costly

  • 27

    The short comings in the cone clutch because of which it is not used

    D. all of the above

  • 28

    What faults develop in the brakes?

    D. All of the above

  • 29

    Inside the clutch is mounted.

    D. gear box propeller shaft

  • 30

    The brake lining operating at temperature mixtures containing ceramics are used.

    C. 750 °F to 1000°F

  • 31

    the brake capacity to absorb energy is known as

    A.braking torque

  • 32

    The part of the total frictional energy that is stored in the brake parts, principally in the drum or disk has been variously estimated at,

    B. 75% up

  • 33

    The principal parts of a hydraulic brake system are master cylinder and

    D. wheel cylinder

  • 34

    The efficiency of hydraulic braking system is

    A. about 90 percent

  • 35

    Power brakes require, power.

    B. less

  • 36

    The act of keeping some pressure on the clutch pedal at the time of driving is known as

    B. riding on clutch

  • 37

    Due to air effect, the hydraulic brakes become

    B. ineffective

  • 38

    friction of the shoe. This fault is known as When the vehicle runs brake dunown comes hot becaus of

    C. brake winding

  • 39

    The effectiveness of the brake may greatly decrease shortly after it begins to act continuously, a phenomenon called

    B. fade

  • 40

    A shaft is used to connect or disconnect at will is caller

    C. clutch

  • 41

    Fiction devices used to regulate the motion of bodies and with clutches.

    B. Brakes

  • 42

    The reasons for noise at the time of engaging brake:

    D. all of the above

  • 43

    The clutch finger is pushed by

    A. clutch bearing

  • 44

    Refers to the simplest type of all brakes

    A. Band brakes

  • 45

    Which of the following types of brakes are also change while replacing brake lining?

    C. Shoe rivets

  • 46

    if the band wraps partly around the brake wheel or drum and brake action is obtained by pulling the band tight onto the wheel. This type of brake is known as

    B. band brake

  • 47

    Why clutch creates noise?

    D. All of the above

  • 48

    The overrunning clutch

    A. can not be lubricated

  • 49

    The overrunning clutch

    D. all of the above

  • 50

    Clutches which are designed to tranamit torque for one direction of rotation of the driver and then. free-wheel or transmit essentially no torque when the direction of the driver rotation is reversed.

    B. Overrunning clutches