MCQ - TNPSC JTO
JTO - 436 - Fitter
436 - Unit X Hydraulics and Pneumatics
129)
Which of the following should not be used to clean hydraulic oil?
A.
B.
C.
D.
130)
What should be labeled in hydraulic systems to prevent mistakes?
A.
B.
C.
D.
131)
Which condition can lead to oil foaming?
A.
B.
C.
D.
132)
Hydraulic systems should be operated:
A.
B.
C.
D.
133)
How are flow control valves represented in a symbol?
A.
B.
C.
D.
134)
Which symbol represents a pressure relief valve?
A.
B.
C.
D.
135)
What do crossed arrows in a symbol indicate?
A.
B.
C.
D.
136)
The arrow in a valve symbol represents:
A.
B.
C.
D.
137)
How is a double-acting actuator shown?
A.
B.
C.
D.
138)
Dashed lines in hydraulic diagrams represent:
A.
B.
C.
D.
139)
In a pressure line, what is typically used for control?
A.
B.
C.
D.
140)
What happens if a filter is clogged?
A.
B.
C.
D.
141)
Hydraulic filters must be changed based on:
A.
B.
C.
D.
142)
What is the ideal micron rating for pressure line filters?
A.
B.
C.
D.
143)
Filter bypass valve is used when:
A.
B.
C.
D.
144)
Which of the following affects filter performance?
A.
B.
C.
D.