Sintercom Interview Questions and Answers

The least count of a micrometer is the smallest measurement that can be read on the scale of the micrometer.

• The least count of a micrometer is typically 0.01 mm or 0.001 mm depending on the type of micrometer.

• It is determined by the number of divisions on the scale of the micrometer and the pitch of the screw.

• For example, a micrometer with 50 divisions on the sleeve and a pitch of 0.5 mm will have a least count of 0.01

The least count of a vernier caliper is the smallest measurement that can be read on the scale.

• The least count is typically 0.02 mm or 0.001 inches on a vernier caliper.

• It is determined by the number of divisions on the main scale and the vernier scale.

• For example, if the main scale has 20 divisions and the vernier scale has 10 divisions, the least count would be 0.02 mm.

Vapour compression cycle is a thermodynamic process used in refrigeration and air conditioning systems.

• It involves the compression of a refrigerant gas to a high pressure and temperature, followed by condensation into a liquid at a lower temperature.

• The liquid refrigerant then passes through an expansion valve, where it undergoes a pressure drop and evaporates at a low temperature and pressure.

• The evaporated refrigeran...read more

1 Btu is approximately equal to 0.252 kcal.

• 1 Btu is equal to 251.996 calories (cal)

• 1 calorie (cal) is equal to 0.001 kcal

• Therefore, 1 Btu is approximately equal to 0.252 kcal