GAUGES - Practice Mode

1) Which bearing material has poor thermal conductivity?

Nylon Teflon Sintered alloys Laminated phenolics

Correct Answer: Laminated phenolics

2) What is the purpose of deep groove type of ball races provided in the ball bearing?

To withstand shock To carry journal loads To withstand axial thrust To withstand radial load

Correct Answer: To withstand axial thrust

3) Why the double row roller bearing is used?

To take axial load To take radial load To take heavy axial load To take heavy radial load

Correct Answer: To take heavy radial load

4) Why the melting point of bearing material should be lower than that of the shaft?

Prevents shaft seizure Prevent damage to bearing Allow the bearing to run efficiently Prevent thermal expansion of shaft

Correct Answer: Prevents shaft seizure

5) Which alloying metal bearing can work at higher temperature and higher load carrying capacity?

Cast iron White metal Copper lead alloys Cadmium based alloy

Correct Answer: Cadmium based alloy

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