Preview Questions Mechanical Technician | Role Specific Skill

Question 1: How can harmonic frequencies in a rotating system be effectively diagnosed?

Which action should you take?

Choose only one option

Ultrasonic inspection

Oscilloscope measurement

FFT (Fast Fourier Transform) analysis

Thermal imaging

Question 2: What is a corrective maintenance action for a hydraulic system that has a significant pressure drop during operation?

Which action should you take?

Choose only one option

Inspect the pressure relief valve and replace damaged seals

Increase the pressure settings to compensate

Check the fluid for contamination or low levels

Replace the hydraulic pump with a larger model

Question 3: If an air compressor experiences intermittent failure during startup, what corrective action should be performed?

Which action should you take?

Choose only one option

Test the lubrication system for flow issues

Inspect and clean the intake filter and check the valve timing

Reduce the operating speed of the compressor

Increase the compressor's startup pressure

Question 4: To ensure accurate calibration of an air compressor, which critical parameter should be checked during operation?

Which action should you take?

Choose only one option

The inlet air quality and its effect on compressor performance

The internal oil temperature and pressure of the compressor

The electrical current to the motor during operation

The outlet pressure and temperature of the compressed air

Question 5: What should you inspect first when performing corrective maintenance on a mechanical ventilation system that is underperforming?

Which action should you take?

Choose only one option

Inspect the electrical connections to the fan motor

Verify the calibration of the temperature and humidity sensors

Inspect the bearings and lubrication levels of the motor

Check for blockages in the intake or exhaust ducting

Question 6: During the calibration of a pressure gauge in a water distribution system, what is the most important factor?

Which action should you take?

Choose only one option

Adjust the gauge according to the system's current pressure

Replace the gauge if readings are inconsistent

Ensure the gauge reads zero when no pressure is applied

Verify that the gauge works at varying water temperatures