ASE Mechanical & Electrical Components 3

Question 1

Excessive crankshaft endplay is typically measured with a:

Accepted Answer

Dial indicator

Answer

A dial indicator measures axial crankshaft movement (endplay).

Question 2

A wheel bearing that produces a humming noise that changes when turning the vehicle indicates:

Accepted Answer

A worn hub/wheel bearing

Answer

Wheel bearing noise commonly changes with cornering load.

Question 3

The purpose of the voltage regulator in the charging system is to:

Accepted Answer

Control field current to maintain proper output voltage

Answer

The regulator adjusts rotor field current to keep system voltage in range.

Question 4

Which measurement tool checks cylinder bore for taper and out-of-round?

Accepted Answer

Bore gauge (dial bore gauge)

Answer

A dial bore gauge measures bore diameter at several points to find taper and out-of-round.

Question 5

A relay's control circuit (coil) typically operates on what compared to the load circuit?

Accepted Answer

Low current to switch a high-current load

Answer

A relay uses a small control current to energize a coil that switches a larger load current.

ASE Practice Test