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

1)   

The symbol of a double-acting cylinder is shown as:

A.
B.
C.
D.
Answer: B
2)   

The purpose of a pressure gauge in a hydraulic circuit is to:

A.
B.
C.
D.
Answer: B
3)   

The contamination in hydraulic oil mainly causes:

A.
B.
C.
D.
Answer: B
4)   

Which type of hydraulic pump has high efficiency and is suitable for high-pressure applications?

A.
B.
C.
D.
Answer: C
5)   

In hydraulic systems, Pascal’s law states that:

A.
B.
C.
D.
Answer: A
6)   

Which valve allows flow in one direction only?

A.
B.
C.
D.
Answer: C
7)   

The hydraulic accumulator is used for:

A.
B.
C.
D.
Answer: A
8)   

The main cause of overheating in hydraulic systems is:

A.
B.
C.
D.
Answer: A
9)   

Flexible hoses in hydraulic systems are used where:

A.
B.
C.
D.
Answer: B
10)   

Which type of hydraulic filter is placed before the pump to protect it from dirt?


A.
B.
C.
D.
Answer: C
11)   

In hydraulic systems, Pascal’s law states that:

A.
B.
C.
D.
Answer: A
12)   

Which valve allows flow in one direction only?

A.
B.
C.
D.
Answer: C
13)   

The hydraulic accumulator is used for:

A.
B.
C.
D.
Answer: A
14)   

The main cause of overheating in hydraulic systems is:

A.
B.
C.
D.
Answer: D
15)   

Flexible hoses in hydraulic systems are used where:

A.
B.
C.
D.
Answer: B
16)   

Which type of hydraulic filter is placed before the pump to protect it from dirt?

A.
B.
C.
D.
Answer: C
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.
Answer: B
21)   

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

A.
B.
C.
D.
Answer: B
22)   

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

A.
B.
C.
D.
Answer: B
23)   

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

A.
B.
C.
D.
Answer: B
24)   

The symbol for a hydraulic motor is shown as:

A.
B.
C.
D.
Answer: A
25)   

Which hydraulic cylinder is commonly used for clamping operations?

A.
B.
C.
D.
Answer: B