Question 1

What happens if the spark plug gap is too large?

Accepted Answer

Poor ignition and misfire

Answer

Electrode melting

Answer

No effect

Answer

Stronger spark

Question 2

What is the function of the ceramic insulator in a spark plug?

Accepted Answer

Prevent shorting and remove heat

Answer

Generate spark

Answer

Increase power

Answer

Add fuel

Question 3

Which part of the spark plug is threaded to fit into the engine?

Accepted Answer

Shell

Answer

Ground electrode

Answer

Terminal

Answer

Insulator nose

Question 4

What is a cold spark plug designed to do?

Accepted Answer

Remove heat quickly

Answer

Heat up quickly

Answer

Prevent oil leaks

Answer

Spark multiple times

Question 5

Which type of spark plug seat uses a washer?

Accepted Answer

Flat seat

Answer

Conical seat

Answer

Multiple electrode

Answer

Surface discharge

Question 6

What material is commonly used for the spark plug insulator?

Accepted Answer

Aluminum oxide

Answer

Copper

Answer

Nickel

Answer

Steel

Question 7

Which of the following is a sign of a worn spark plug?

Accepted Answer

Glazed deposits

Answer

Shiny tip

Answer

Small gap

Answer

Fresh threads

Question 8

What is the main role of a spark plug?

Accepted Answer

To ignite the air-fuel mixture

Answer

To regulate voltage

Answer

To cool the engine

Answer

To lubricate the cylinder

Question 9

What tool is used to check the gap of a spark plug?

Accepted Answer

Feeler gauge

Answer

Caliper

Answer

Micrometer

Answer

Torque wrench

Question 10

What percentage of combustion heat is absorbed by the cylinder head?

Accepted Answer

58%

Answer

80%

Answer

20%

Answer

2%

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