Resolver Inc. Interview Questions and Answers

AC drives are used for controlling the speed of AC motors, while DC drives are used for controlling the speed of DC motors.

• AC drives are used for controlling the speed of AC motors by varying the frequency of the input power.

• DC drives are used for controlling the speed of DC motors by varying the voltage supplied to the motor.

• AC drives are more commonly used in industrial applications due to the prevalence of AC power sources.

• DC drives are often used in applications where pre...read more

SI engines use spark plugs for ignition, while CI engines use compression for ignition.

• SI engines have spark plugs to ignite the air-fuel mixture, while CI engines rely on compression to ignite the fuel.

• SI engines are commonly used in gasoline vehicles, while CI engines are typically found in diesel vehicles.

• SI engines have a higher power output compared to CI engines.

• SI engines have a higher fuel efficiency compared to CI engines.

The interview covered topics such as hydraulic principles, engine workings, proportional valves, valve blocks, types of hydraulic pumps, hydraulic and electrical circuits, working culture, customer handling, and field experience.

• Hydraulic principles involve the use of fluids to generate power and control movement.

• Engines work by converting fuel into energy, which is then used to power the vehicle or machine.

• Proportional valves are used to control the flow of fluid in a hydrau...read more

Specific gravity of a battery is a measure of its electrolyte's density compared to water.

• Specific gravity is typically measured using a hydrometer.

• It indicates the state of charge of a lead-acid battery.

• A fully charged lead-acid battery will have a specific gravity of around 1.265.

• A discharged battery will have a lower specific gravity, around 1.150.

Hydraulic systems use liquid to transmit power, while pneumatic systems use gas.

• Hydraulic systems use oil or water as the fluid medium, while pneumatic systems use air or other gases.

• Hydraulic systems are typically used in heavy-duty applications like construction equipment, while pneumatic systems are used in lighter applications like air brakes in vehicles.

• Hydraulic systems are generally more powerful and can handle higher loads than pneumatic systems.

• Hydraulic systems are ...read more