Preview Questions Control Systems Technician | Role Specific Skill

Question 1: How does non-contact temperature sensing (e.g., infrared thermometers) differ from traditional temperature measurement methods?

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It provides less precise temperature data

It has slower response time compared to thermocouples

It is more expensive to implement than thermocouples

It does not require physical contact with the object being measured

Question 2: The feedback loop in a control system is delayed. What is the most likely cause?

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Sensor response time

Feedback signal wiring

Incorrect loop tuning

Controller processing delay

Question 3: What is the primary concern when performing contact resistance testing on switchgear contacts?

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Checking for any excessive current flowing through the contacts

Ensuring the switchgear is rated for high current loads

Verifying the contact resistance is below a threshold value

Ensuring that the contacts are free from corrosion and pitting

Question 4: What is the purpose of a phase rotation test in electrical testing?

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To check the balance of current in the system

To measure the frequency of the system

To verify the sequence of phases in a three-phase system

To test the phase angle of voltage

Question 5: What is the typical purpose of a clamp-on ammeter in electrical testing?

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To measure phase angles in AC circuits

To measure current without breaking the circuit

To measure voltage drop

To measure insulation resistance

Question 6: In an earth leakage current test, which device is used to measure leakage current in a circuit?

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Leakage current clamp meter

Phase angle tester

Insulation resistance tester

Digital voltmeter