BEARING QUIZ FOR FITTER TRADE SEM 3

1) The function of bearing in a machine is …………

To support the movable parts of the machine.

To reduce the friction between the surface of the movable parts.

To reduce the Frictional Horse Power of a Machine.

All of the above

2) In a machine, bearing is used to increase the friction between the surface of moving parts.

True 

False

3) The bearing surface is always cylindrical in shape only.

True  

False

4) In which of the following bearing type, a continuous flow of lubricant is necessary.

Ball bearing

Roller bearing 

Solid bearing

Sintered bearing

5) Which of the following bearing is simple in design. 

Ball bearing

Roller bearing 

Solid bearing

Sintered bearing

6) In sleeve bearing the metal of sleeve is softer than the metal of shaft. 

True 

False

7) In bush bearing the metal of bush is ………………

Gunmetal

Cast Iron 

White metal

All of the above

8) Plain Cylindrical bearings are more rigid than rolling bearings

True 

False

9) Plain Cylindrical Bearing needs more Linear space than rolling bearings. 

True 

False

10) Which of the following are not a type of ‘’Antifriction Bearing’’

Sintered Bearing

Ball Bearing

Solid Bearing

Roller Bearing

11) Footstep Bearing Carry …………………… load. 

Only axial load 

Only radial load 

Both axial and radial load

They don’t carry any load 

12) The plain cylindrical bearing has more friction as compared to the rolling bearing, but still, it is used on large scale reason for this is …………………….

They are cheap

They produce less noise 

They are more rigid 

All the above

13) In bearing metal which of the following property is not necessary.

Corrosion resistance 

Embeddability 

Heat Conductivity

All the above properties are necessary 

14) Gunmetal is an alloy consisting of …………………………

Copper, Tin& Aluminium

Copper, Tin & Zinc

Copper, Lead & Aluminium

Copper, Antimony& Tungsten

15) Reason for using Gunmetal for bearing metal is ……………

It has good casting and machinability properties.

It has good corrosion resisting properties.

It has good heat conduction.

Due to all the above properties.

16) Which of the following alloy is not suitable for use as bearing metal?

Gunmetal

Duralumin

Tombak

Tin bronze

17) Rolling element used in a rolling bearing is ………

Ball

Roller

Needle roller

All of the above

18) In rolling bearing, the bearing part which fits on the shaft is known as ……

Inner race 

Outer race

Rolling element

19) In roller bearing the type of contact between the bearing is of point contact type.

True 

False

20) In rolling bearing, the inner ring of the bearing is also called a “shaft ring”.

True 

False

21) In rolling bearing the hardness of rolling element is ………………………

HRC 42 to HRC 50

HRC 55 to HRC 67

HRC 70 to HRC 75

HRC 76 to HRC 85

22) The following is the example of Plain bearing.

Thrust bearing

Linear bearing

Journal bearing

All of the above

23) The following type of bearing has no rolling element.

Thrust bearing

Linear bearing

Journal bearing

All of the above

24) Which type of bearing(s) provides a bearing surface for forces acting along the axis to the shaft?

Thrust bearing

Journal bearing

Linear bearing

None of the above

25)The type of bearing used in crankshaft is

Roller bearing

Ball bearing

Plain bearing

Magnetic bearing