Manager Mech Interview Questions and Answers

An explosive vent is a safety device installed on air-cooled transformers to prevent explosions.

• It is designed to release pressure buildup inside the transformer in case of a fault or malfunction.

• The vent is typically made of a thin metal membrane that ruptures when pressure exceeds a certain level.

• This allows the hot gases and oil to escape, preventing the transformer from exploding.

• Explosive vents are required by industry standards and regulations to ensure the safety of pe...read more

ACB stands for Air Circuit Breaker. It trips when the current flowing through it exceeds its rated capacity.

• ACB is a type of circuit breaker that is used to protect electrical circuits from overloads, short circuits, and other faults.

• It works by interrupting the flow of current when it exceeds the rated capacity of the breaker.

• ACBs are commonly used in industrial and commercial settings, where large amounts of power are required.

• Examples of ACB manufacturers include Siemens, ...read more

The coverage of sprinklers depends on the type of sprinkler system installed and the size of the area to be covered.

• Sprinkler coverage can range from a few feet to over 100 feet depending on the system.

• The size and shape of the area to be covered also affects the sprinkler coverage.

• Different types of sprinklers have different coverage patterns, such as circular, rectangular, or square.

• Sprinkler coverage can also be affected by obstacles or obstructions in the area.

• It is impor...read more

PRV stands for Pressure Relief Valve. It is a safety device used to protect equipment and systems from overpressure.

• PRVs are used in various industries such as oil and gas, chemical, and power generation.

• There are different types of PRVs such as spring-loaded, pilot-operated, and bellows.

• Spring-loaded PRVs are the most common type and operate by using a spring to keep the valve closed until the pressure exceeds a set limit.

• Pilot-operated PRVs use a smaller valve to control th...read more

There are several types of bearings used in mechanical applications.

• There are four main types of bearings: ball bearings, roller bearings, plain bearings, and jewel bearings.

• Ball bearings are the most common type and are used in applications with low to moderate loads.

• Roller bearings are used in applications with heavier loads and higher speeds.

• Plain bearings are used in applications with high loads and low speeds.

• Jewel bearings are used in precision instruments and watches.

• O...read more