Chapter Quiz

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Chapter 13

Chapter Quiz

This activity contains 10 questions.

Two technicians are discussing the proper procedure for bleeding air from a power steering system. Technician A says that the front wheels of the vehicle should be lifted off the ground before bleeding. Technician B says that the steering wheel should be turned left and right with the engine off during the procedure. Which technician is correct?

	Technician A only
	Technician B only
	Both Technicians A and B
	Neither Technician A nor B

A power steering pressure test is being performed, and the pressure is higher than specifications with the engine running and the steering wheel stationary in the straight-ahead position. Technician A says that a restricted high-pressure line could be the cause. Technician B says that internal leakage inside the steering gear or rack-and-pinion unit could be the cause. Which technician is correct?

	Technician A only
	Technician B only
	Both Technicians A and B
	Neither Technician A nor B

When pressure testing an hydraulic assisted power steering system, the highest pressures were greater than 50 PSI of each other. This indicates a problem with ________.

	Pump rotor
	Pump vanes
	Flow control valve
	Defective hose

Integral power steering gears use ________ for lubrication of the unit.

	SAE 80W-90 gear lube
	Chassis grease (NLGI #2)
	Power steering fluid in the system
	Molybdenum disulfide

What can cause hard steering on a vehicle equipped with hydraulic power assisted steering system?

	Low tire pressure
	Slipping P.S. pump drive belt
	Low or contaminated power steering fluid
	Any of the above

High-pressure hoses have to be used on the high-pressure side of the power steering system because pressures can reach as high as ________.

	200 PSI
	750 PSI
	1,500 PSI
	2,500 PSI

Some vehicles are equipped to signal the computer whenever the power steering pressures increase so that the idle speed can be increased to prevent stalling during turns at low speeds. What component signals the computer?

	Pressure-relief valve
	Power steering pressure switch
	Rotary valve
	Flow control valve

What type of motor is used in most electric power steering (EPS) systems?

	AC brush type
	DC brushless
	Stepper
	DC capacitor start

Electronically controlled variable-assist power steering systems vary the amount of boost by ________.

	Varying the pump output orifice size
	Speeding up or slowing down the power steering pump
	Changing the flow of fluid through the steering gear
	Bypassing some of the fluid back into the reservoir

Two technicians are discussing electric power steering (EPS) systems. Technician A says that some systems operate on 12 volts. Technician B says that some systems operate on 42 volts such as some hybrid electric vehicles. Which technician is correct?

	Technician A only
	Technician B only
	Both Technicians A and B
	Neither Technician A nor B

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