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

126)   

Which hydraulic hazard can result from worn-out hoses?

A.
B.
C.
D.
Answer: C
127)   

What should be done before loosening hydraulic connectors?

A.
B.
C.
D.
Answer: C
128)   

Hydraulic fluid on the floor is a:

A.
B.
C.
D.
Answer: B
129)   

Which of the following should not be used to clean hydraulic oil?

A.
B.
C.
D.
Answer: C
130)   

What should be labeled in hydraulic systems to prevent mistakes?

A.
B.
C.
D.
Answer: A
131)   

Which condition can lead to oil foaming?

A.
B.
C.
D.
Answer: B
132)   

Hydraulic systems should be operated:

A.
B.
C.
D.
Answer: C
133)   

How are flow control valves represented in a symbol?

A.
B.
C.
D.
Answer: B
134)   

Which symbol represents a pressure relief valve?

A.
B.
C.
D.
Answer: A
135)   

What do crossed arrows in a symbol indicate?

A.
B.
C.
D.
Answer: B
136)   

The arrow in a valve symbol represents:

A.
B.
C.
D.
Answer: C
137)   

How is a double-acting actuator shown?

A.
B.
C.
D.
Answer: B
138)   

Dashed lines in hydraulic diagrams represent:

A.
B.
C.
D.
Answer: C
139)   

In a pressure line, what is typically used for control?

A.
B.
C.
D.
Answer: B
140)   

What happens if a filter is clogged?

A.
B.
C.
D.
Answer: B
141)   

Hydraulic filters must be changed based on:

A.
B.
C.
D.
Answer: C
142)   

What is the ideal micron rating for pressure line filters?

A.
B.
C.
D.
Answer: C
143)   

Filter bypass valve is used when:

A.
B.
C.
D.
Answer: C
144)   

Which of the following affects filter performance?

A.
B.
C.
D.
Answer: B
145)   

Contaminants in hydraulic oil may include:

A.
B.
C.
D.
Answer: D
146)   

Which pump is known for low noise and high reliability?

A.
B.
C.
D.
Answer: B
147)   

Which pump provides high volumetric efficiency?

A.
B.
C.
D.
Answer: A
148)   

What affects pump efficiency the most?

A.
B.
C.
D.
Answer: B
149)   

Axial piston pumps operate based on:

A.
B.
C.
D.
Answer: C
150)   

Cavitation in pumps occurs due to:

A.
B.
C.
D.
Answer: A