問題一覧
1
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
2
Fiction devices used to regulate the motion of bodies and with clutches.
B. Brakes
3
The frictional forces depends on coefficient of friction and
B. normal force
4
A shaft is used to connect or disconnect at will is caller
C. clutch
5
The brake lining operating at temperature mixtures containing ceramics are used.
C. 750 °F to 1000°F
6
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
7
the brake capacity to absorb energy is known as
A.braking torque
8
The part of an automobile disc clutch that presses against the flywheel is referred to as
C. pressure plate
9
Hydrodynamic brakes is the major type of
C. fluid brake
10
Sues of brakes that is capable otarting ins the motion of, machine member as wel as relarding is moton shit,
D. Mechanical brake
11
It is considered as the simplest type of mechanical brake.
D. Band brake
12
The friction devices used to connect shafts.
B. Clutches
13
A clutch that has a disadvantage of heavier rotary masses is known as
B. Multiple disc clutch
14
• In motor vehicles, it is very common practice to use a
D. single plate clutch
15
Clutch, gear box, differential etc. are the parts of
D. transmission system
16
The overrunning clutch
D. all of the above
17
The overrunning clutch
A. can not be lubricated
18
The efficiency of hydraulic braking system is
A. about 90 percent
19
Due to air effect, the hydraulic brakes become
B. ineffective
20
The lining of a brake shoe
A. can be changed
21
A hydraulic clutch doesn't incorporate a
A. clutch plate
22
The clutch finger is pushed by
A. clutch bearing
23
Which of the following types of brakes are also change while replacing brake lining?
C. Shoe rivets
24
What faults develop in the brakes?
D. All of the above
25
Why clutch creates noise?
D. All of the above
26
The SAE recommends an angle of for cone clutches faced with leather or asbestos or having cork inserts.
C. 12.5°
27
Power brakes require, power.
B. less
28
In motor vehicles, there is a, brake. in addition of foot
B. hand brake
29
In the mechanical brake system the main function is of
A. cam
30
The principal parts of a hydraulic brake system are master cylinder and
D. wheel cylinder
31
What type of ol is used in the hydraulic brake system?
A. Brake oil
32
Inside the clutch is mounted.
D. gear box propeller shaft
33
Hydraulic clutches are used in vehicles.
C. costly
34
There are plates in a multi plate clutch.
C. more than one
35
which of the following is used in the suspension system?
D. Shock absorbers
36
Suitable for mine hoists and other services where heavy loads are accompanied by severe shock.
Band clutch
37
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
38
The practical length of shoe is limited to about
C. 120°
39
Refers to the simplest type of all brakes
A. Band brakes
40
for overload protection of motors and engine. sup Used to protect a machors and engine." jamming aig
D. Slip clutch
41
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
42
Type of brake under the category of power brake is known as
D. servo brake
43
The effectiveness of the brake may greatly decrease shortly after it begins to act continuously, a phenomenon called
B. fade
44
is. Supplementary Question It is used to stop the motion of a moving object.
C. Brakes
45
The most common defects of clutch:
D. all of the above
46
The maintenance of mechanical brake is
B.economical
47
friction of the shoe. This fault is known as When the vehicle runs brake dunown comes hot becaus of
C. brake winding
48
The reasons for noise at the time of engaging brake:
D. all of the above
49
The act of keeping some pressure on the clutch pedal at the time of driving is known as
B. riding on clutch
50
The short comings in the cone clutch because of which it is not used
D. all of the above