Preview Questions Maintenance Technician | Role Specific Skill

Question 1: What is the most effective method for preventing clogging and fouling in a chemical filtration system during preventive maintenance?

Which action should you take?

Choose only one option

Reducing the filtration system's operational flow to minimize load

Regularly inspecting, cleaning, and replacing filters, and verifying flow rates

Only replacing filters when the pressure differential becomes too high

Ignoring routine cleaning and relying on chemical additives

Question 2: How does ambient temperature affect the calibration of pressure transmitters in a petrochemical plant?

Which action should you take?

Choose only one option

It causes a permanent shift in the pressure calibration, making recalibration unnecessary

It only affects the power supply and does not impact the calibration readings

It has no effect as long as the transmitter is properly shielded from temperature variations

It can cause drift in the readings, requiring compensation or recalibration to ensure accuracy

Question 3: During troubleshooting of a valve in a chemical plant, you notice that the valve is leaking when it should be closed. What is the most likely cause?

Which action should you take?

Choose only one option

Low supply pressure in the system

Improper valve position setpoint

Excessive valve actuator speed

Worn valve seat or seal failure

Question 4: What is the first action when troubleshooting a sensor that is providing incorrect readings?

Which action should you take?

Choose only one option

Ignore the sensor's output as it may be due to external factors

Immediately replace the sensor without further investigation

Continue to use the sensor and adjust for discrepancies

Verify the sensor wiring, calibration, and power supply for potential issues

Question 5: When performing a loop calibration on a control valve, what should be verified to ensure proper function?

Which action should you take?

Choose only one option

Check the valve for internal wear without adjusting the actuator

Only verify the wiring and control signal inputs to the actuator

Check the actuator's response time, stroke, and valve position feedback against the set points

Confirm the valve body condition and external components only

Question 6: During calibration of electrical conductivity meters, which parameter should be verified first?

Which action should you take?

Choose only one option

The length of the probe to ensure correct depth

The electrode condition and the proper installation of the conductivity probe

The voltage input to the meter

The physical condition of the conductivity chamber