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MCQ - Mechanical TNPSC JTO
JTO - 436 - Fitter - 436 - Unit VII Basic Maintenance Erection

76)   

Boundary lubrication occurs when:

A.
B.
C.
D.
Answer: B
77)   

Hydrodynamic lubrication works on the principle of:

A.
B.
C.
D.
Answer: A
78)   

Which type of lubrication uses a pressurized supply of oil?

A.
B.
C.
D.
Answer: A
79)   

Solid lubrication is preferred in:

A.
B.
C.
D.
Answer: B
80)   

Graphite and molybdenum disulphide are examples of:

A.
B.
C.
D.
Answer: C
81)   

Which method of lubrication uses oil stored in a sump that is splashed onto moving parts?

A.
B.
C.
D.
Answer: B
82)   

In drip feed lubrication, oil is supplied to the bearing:

A.
B.
C.
D.
Answer: A
83)   

Force feed lubrication is commonly used in:

A.
B.
C.
D.
Answer: A
84)   

In wick feed lubrication, the lubricant reaches the surface by:

A.
B.
C.
D.
Answer: B
85)   

Grease lubrication is more suitable when:

A.
B.
C.
D.
Answer: B
86)   

Which gear type is preferred for high-speed, smooth, and quiet transmission?

A.
B.
C.
D.
Answer: B
87)   

A belt drive is slipping under load. The most suitable corrective action is:

A.
B.
C.
D.
Answer: B
88)   

Which coupling is suitable for connecting two shafts having no misalignment and requiring rigid connection?

A.
B.
C.
D.
Answer: A
89)   

Which chain type is generally used in bicycles?

A.
B.
C.
D.
Answer: C
90)   

Excessive backlash in gear teeth can be reduced by:

A.
B.
C.
D.
Answer: B
91)   

A worn clutch facing can cause:

A.
B.
C.
D.
Answer: B
92)   

In bearings, pitting on the raceway is mainly caused by:

A.
B.
C.
D.
Answer: A
93)   

Which bearing type is suitable for heavy radial load but not axial load?

A.
B.
C.
D.
Answer: A
94)   

The pitch of a chain is defined as:

A.
B.
C.
D.
Answer: A
95)   

The purpose of a key between shaft and pulley is to:

A.
B.
C.
D.
Answer: A
96)   

Two spur gears have 20 and 40 teeth respectively. If the driver rotates at 200 rpm, the velocity ratio is:

A.
B.
C.
D.
Answer: A
97)   

A pinion with 15 teeth drives a gear with 60 teeth. If the pinion speed is 120 rpm, what is the speed of the gear?

A.
B.
C.
D.
Answer: A
98)   

For an open belt drive, VR is given by:

A.
B.
C.
D.
Answer: A
99)   

A pulley of 500 mm diameter drives another pulley of 250 mm diameter. If the driver runs at 200 rpm, the driven speed is:

A.
B.
C.
D.
Answer: C
100)   

The VR of a belt drive will increase if:

A.
B.
C.
D.
Answer: A