Jindal Stainless Head - Projects Interview Questions and Answers

Least count of vernier caliper is the smallest measurement that can be read accurately.

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

• For example, if the main scale has 10 divisions and the vernier scale has 9 divisions, the least count would be 0.1 mm.

• It is important to use the correct least count when taking measurements to ensure accuracy.

Degrees of air sides refer to the different temperature zones within an air handling unit.

• Degrees of air sides include hot, warm, cool, and cold zones.

• These zones are typically controlled by dampers and valves to regulate the temperature of the air being circulated.

• For example, the hot side may be where the heating coil is located, while the cool side may be where the cooling coil is located.

Cryogenic temperatures are extremely low temperatures below -150°C, regular valves can freeze and become brittle at such temperatures.

• Cryogenic temperatures are below -150°C, making materials brittle and prone to failure

• Regular valves may freeze and become ineffective at cryogenic temperatures

• Specialized cryogenic valves are designed to withstand extreme cold temperatures

• Materials like stainless steel or brass are used