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MCQ - TNPSC JTO

JTO - 436 - Fitter

436 - Unit X Hydraulics and Pneumatics

17)   

Which of the following is NOT a part of preventive maintenance in hydraulics?

A.
B.
C.
D.
Answer: C
18)   

Hydraulic systems are generally operated at pressures in the range of:

A.
B.
C.
D.
Answer: C
19)   

Which hydraulic pump is self-priming and simple in design?

A.
B.
C.
D.
Answer: A
20)   

The hydraulic oil must have the property of

A.
B.
C.
D.
21)   

Which valve is used to control the sequence of operations in hydraulics?

A.
B.
C.
D.
22)   

Which hydraulic valve is used to limit the maximum system pressure?

A.
B.
C.
D.
23)   

The main reason for air bubbles (aeration) in hydraulic oil is:

A.
B.
C.
D.
24)   

The symbol for a hydraulic motor is shown as:

A.
B.
C.
D.
25)   

Which hydraulic cylinder is commonly used for clamping operations?

A.
B.
C.
D.
26)   

The function of a directional control valve is to:

A.
B.
C.
D.
27)   

The first safety step before repairing a pneumatic system is:

A.
B.
C.
D.
28)   

The pneumatic symbol for a compressor is represented by:

A.
B.
C.
D.
29)   

The FRL unit in pneumatics stands for:

A.
B.
C.
D.
30)   

The function of the filter in FRL unit is to:

A.
B.
C.
D.
31)   

Pneumatic actuators convert:

A.
B.
C.
D.
32)   

A single-acting pneumatic cylinder returns by:

A.
B.
C.
D.