Preview Questions Maintenance Technician | Role Specific Skill

Question 1: When troubleshooting chemical dosing pumps, what is the primary reason for a pump not starting?

Which action should you take?

Choose only one option

Air in the system preventing fluid movement

Blockage in the pump's suction line or clogged filters

Overheated fluid causing the pump to stop automatically

A failure in the electrical control circuit or lack of power supply

Question 2: What should be checked during the calibration of a gas detection system in a chemical plant?

Which action should you take?

Choose only one option

The installation location and environmental conditions without verifying sensor performance

The sensor's response to known gas concentrations and its ability to trigger alarms at set points

The integrity of the wiring and power supply alone

Only the response time of the alarm system without testing the sensor's functionality

Question 3: What would you check first when troubleshooting a cooling system that is not reaching the desired temperature?

Which action should you take?

Choose only one option

Assume the thermostat is faulty and replace it

Immediately shut down the system without checking parameters

Increase the heat output to try to compensate for the cooling loss

Verify if the coolant flow rate, temperature set points, and compressor functionality are correct

Question 4: How does vibration control play a role in the installation of machinery like compressors and motors?

Which action should you take?

Choose only one option

Vibration control is irrelevant for larger machines that operate at high speeds

Proper vibration control reduces wear and tear on machinery, minimizes noise, and extends equipment life

Vibration control can be ignored if the machine is installed on a solid foundation

Vibrations are only an issue for equipment operating at extremely low speeds

Question 5: During preventive maintenance of a heat exchanger, what is the most critical aspect to focus on to ensure efficiency?

Which action should you take?

Choose only one option

Cleaning of the tubes and checking for signs of fouling or corrosion

Ensuring proper insulation around the unit

Verifying that the temperature sensors are calibrated correctly

Checking the heat exchanger frame for misalignment

Question 6: When troubleshooting a control valve that isn't responding, what should a technician check first?

Which action should you take?

Choose only one option

Ensure the control signal and power supply are operational and verify proper actuator movement

Assume the valve is functioning properly and ignore the signal

Check only for external leakage without verifying actuator function

Disassemble the valve to check for internal wear and tear