CET Troubleshooting and Diagnostics

Question 1

What is the first step in troubleshooting an electronic circuit?

Accepted Answer

Identify the problem by analyzing symptoms or using diagnostic tools.

Answer

Check the power source first.

Answer

Start by testing each component individually.

Answer

Replace suspected faulty components.

Question 2

What tool is commonly used for measuring the voltage in a circuit?

Accepted Answer

Multimeter

Answer

Oscilloscope

Answer

Voltmeter

Answer

Current clamp

Question 3

What does a continuity test check for in a circuit?

Accepted Answer

Completeness of the electrical path or circuit.

Answer

Presence of voltage.

Answer

Current flow through the circuit.

Answer

Resistance in the circuit.

Question 4

Which diagnostic tool is used to view the waveform of a signal?

Accepted Answer

Oscilloscope

Answer

Multimeter

Answer

Thermometer

Answer

Power meter

Question 5

What is the function of a fuse in an electronic circuit?

Accepted Answer

To protect the circuit by breaking the connection when the current is too high.

Answer

To regulate the current.

Answer

To amplify the signal.

Answer

To store electrical charge.

Question 6

What is a common reason for an electrical component to overheat?

Accepted Answer

Answer

Excessive current flow or short circuits.

Answer

Lack of sufficient power supply.

Answer

Incorrect voltage.

Answer

Loose connections.

Question 7

What is the purpose of thermal imaging in electronics troubleshooting?

Accepted Answer

To detect hot spots in circuits and identify faulty components.

Answer

To measure voltage.

Answer

To measure current flow.

Answer

To measure frequency.

Question 8

What is a short circuit?

Accepted Answer

A low-resistance path that allows excess current to flow.

Answer

A high-resistance path in the circuit.

Answer

An open path in the circuit.

Answer

A complete circuit without any break.

Question 9

What is the most common method for testing for continuity in a circuit?

Accepted Answer

Use a multimeter in continuity mode.

Answer

Use a voltage tester.

Answer

Use a current clamp.

Answer

Use a power supply.