ACME Group Mechanical Technician Interview Questions and Answers

The KOMATSU PC 210-8M0 engine has approximately 158 hp.

• The KOMATSU PC 210-8M0 engine is rated at around 158 horsepower.

• The engine power output can vary slightly depending on specific model variations or modifications.

• HP stands for horsepower, which is a unit of measurement for power in engines.

Pc & Lc stands for Pressure Control & Level Control in the context of mechanical systems.

• Pc refers to Pressure Control, which involves regulating the pressure within a system to maintain optimal performance.

• Lc refers to Level Control, which involves monitoring and adjusting the level of a substance within a tank or vessel.

• These controls are essential in various mechanical systems such as HVAC systems, hydraulic systems

The hydraulic oil used for KOMATSU PC 130 & 210 is ISO VG 46 grade hydraulic oil.

• ISO VG 46 grade hydraulic oil is recommended for KOMATSU PC 130 & 210.

• It is important to use the correct grade of hydraulic oil to ensure optimal performance and longevity of the equipment.

Different types of pumps include centrifugal, reciprocating, and rotary pumps. Pump sealing systems can include mechanical seals, packing seals, and magnetic drive seals. Pump API plans are standardized plans for pump maintenance and troubleshooting.

• Types of pumps: centrifugal, reciprocating, rotary

• Pump sealing systems: mechanical seals, packing seals, magnetic drive seals

• Pump API plans: standardized plans for maintena

Positive pumps are used to move fluids by creating a pressure difference.

• Positive displacement pumps

• Centrifugal pumps

• Diaphragm pumps

• Gear pumps

• Piston pumps

• Peristaltic pumps

• Rotary pumps

• Screw pumps

• Vane pumps

A centrifugal pump is a mechanical device that uses centrifugal force to transport fluids.

• Centrifugal pumps are commonly used in various industries for fluid transportation.

• They work by converting rotational energy from a motor into kinetic energy in the fluid.

• The fluid enters the pump through the inlet and is accelerated by the impeller.

• The impeller's rotation creates centrifugal force, pushing the fluid towards the p...read more

The jockey pump is typically located in the fire pump room or near the main fire pump.

• The jockey pump is a small pump used to maintain pressure in a fire protection system.

• It is usually installed in conjunction with the main fire pump.

• The jockey pump helps prevent the fire pump from starting and stopping frequently by maintaining a constant pressure in the system.

• It is commonly found in the fire pump room or in close p...read more

Fire engines are used in various locations to respond to and extinguish fires.

• Fire engines are used in cities and towns to respond to structural fires in buildings.

• They are also used in rural areas to combat wildfires.

• Fire engines are deployed at airports to handle aircraft fires and emergencies.

• They are used in industrial areas to respond to fires in factories and warehouses.

• Fire engines are even used on ships and boa

A motor operator valve is a type of valve that is operated by an electric motor.

• Motor operator valves are commonly used in industrial applications.

• They are designed to control the flow of fluids or gases.

• Motor operator valves can be used in various systems, such as pipelines, power plants, and manufacturing processes.

• These valves are typically controlled remotely, allowing for automated operation.

• Examples of motor oper...read more

Creep damage in turbo engines can be found through visual inspection, non-destructive testing, and monitoring of engine performance.

• Visual inspection of turbine blades and vanes for cracks, deformations, and discoloration

• Non-destructive testing methods such as ultrasonic testing, X-ray inspection, and eddy current testing

• Monitoring of engine performance through vibration analysis, temperature measurements, and oil anal...read more