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MCQ - Mechanical TNPSC JTO
JTO - 436 - Fitter - 436 - Unit X Hydraulics and Pneumatics

51)   

Which of the following is a standard pipe fitting accessory?

A.
B.
C.
D.
Answer: D
52)   

A 90° elbow is used to:

A.
B.
C.
D.
Answer: B
53)   

The function of a reducer in piping is to:

A.
B.
C.
D.
Answer: B
54)   

The tool used for tightening and loosening pipe fittings is

A.
B.
C.
D.
Answer: B
55)   

The internal thread cutting in pipes is done by:

A.
B.
C.
D.
Answer: C
56)   

The external thread cutting on pipes is done by:

A.
B.
C.
D.
Answer: A
57)   

In tube and pipe assembly, sealing is mainly achieved by:

A.
B.
C.
D.
Answer: B
58)   

Which of the following is a common application of hydraulics?

A.
B.
C.
D.
Answer: D
59)   

In hydraulics, cavitation occurs when:

A.
B.
C.
D.
Answer: B
60)   

Which type of hydraulic cylinder can produce long stroke in limited space?

A.
B.
C.
D.
Answer: C
61)   

A flow control valve with built-in check valve allows:

A.
B.
C.
D.
Answer: B
62)   

The life of a hydraulic system mainly depends on:

A.
B.
C.
D.
Answer: D
63)   

Which hydraulic component is used for cooling the oil?

A.
B.
C.
D.
Answer: B
64)   

The oil reservoir in a hydraulic system serves the function of:

A.
B.
C.
D.
Answer: D
65)   

A tandem master cylinder is mainly used in:

A.
B.
C.
D.
Answer: C
66)   

The term “hydraulic lock” refers to:

A.
B.
C.
D.
Answer: B
67)   

The major cause of hydraulic hose failure is:

A.
B.
C.
D.
Answer: C
68)   

The property of hydraulic oil that resists change in viscosity with temperature is called

A.
B.
C.
D.
Answer: B
69)   

Which of the following devices converts hydraulic energy into rotary mechanical motion?

A.
B.
C.
D.
Answer: A
70)   

The most common material used for hydraulic pipes is:

A.
B.
C.
D.
Answer: C
71)   

Which of the following valves prevents oil from returning back into the tank?

A.
B.
C.
D.
Answer: C
72)   

Which safety measure is correct while working on hydraulic systems?

A.
B.
C.
D.
Answer: D
73)   

Which hydraulic component helps in smooth starting of actuators by avoiding sudden jerks?

A.
B.
C.
D.
Answer: A
74)   

The function of a pressure reducing valve in hydraulics is to:

A.
B.
C.
D.
Answer: B
75)   

The efficiency of a hydraulic pump is reduced mainly due to

A.
B.
C.
D.
Answer: A