Automotive Servicing NC I Practice Questions - TESDA Automotive Servicing NC I Competency Assessment Exam

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A technician is checking the resistance of a diesel glow plug using a digital multimeter. What is the typical resistance value of a good glow plug at room temperature?

Less than 2 ohms (typically 0.5 to 1.5 ohms) Between 10 and 20 ohms Between 50 and 100 ohms Infinite resistance (open circuit)

Correct Answer:

Less than 2 ohms (typically 0.5 to 1.5 ohms)

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