Describe how you lap valve seats.

What will be an ideal response?


To begin lapping, apply a thin coating of lapping compound to the face of the valve. Insert the valve into the guide and rotate the valve back and forth with a lapping tool. Prussian Blue can be used to check the contact between the valve and its seat.

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A worn flexible coupling in the steering column may cause a rattling noise while the vehicle is driven.

Answer the following statement true (T) or false (F)

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When are trace minerals toxic to livestock?

What will be an ideal response?

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The ability to measure AC current is useful when diagnosing ________

A) Starter motor operation B) Alternator function C) Resistance in a battery cable D) None of these

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Fuel pump pressure is too low after engine start-up. Which of these could be the cause?

A) Excessive system voltage B) Defective fuel pump rely C) Plugged fuel filter D) Restricted fuel return line

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