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Question # 16

Transmission difficult to shift into low gears. Clutch free play excessive. What is MOST likely?

Options:

A.

Incomplete clutch release from excess free play

B.

Worn synchronizers

C.

Worn input bearing

D.

Low transmission fluid

Question # 17

Air brake system shows compressor cuts in at 90 psi and out at 150 psi. What does this indicate?

Options:

A.

Governor setting out of adjustment

B.

Worn compressor

C.

Relay valve fault

D.

Faulty dryer purge

Question # 18

Cab A/C system cycles too frequently. Low-side pressure drops quickly to cutoff. Charge is correct. What is MOST likely?

Options:

A.

Restricted TXV or orifice tube

B.

Weak compressor

C.

Low refrigerant charge

D.

Faulty pressure switch

Question # 19

MIL is on with code P0300 (random misfire). Misfire counter shows multiple cylinders affected during wet weather only. What is MOST likely?

Options:

A.

Cracked ignition coil housing

B.

Dirty MAF sensor

C.

Restricted fuel filter

D.

Stuck EGR valve

Question # 20

A truck’s A/C blows warm. Static pressures are equal. With clutch engaged, pressures remain equal. What is MOST likely?

Options:

A.

Inoperative compressor

B.

Low refrigerant

C.

Blocked condenser

D.

Faulty blower resistor

Viewing question 4 out of 15 questions


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Name Automotive Service Excellence: Medium-Heavy Truck series
Code T Series
Vendor Skilled Trades
Certification ASE

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