Question 1

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

Accepted Answer

A)  Stepper
B)  DC brushless
C)  DC capacitor start
D)  AC brush typeE) None of the above
F) A) and D) B

Question 2

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

Accepted Answer

A)  750 psi
B)  1500 psi
C)  200 psi
D)  2500 psiE) All of the above
F) B) and C)

Question 3

Technician A says that lifting the vehicle and turning the steering wheel may help bleed air out of some systems. Technician B says that if this procedure is used, the wheels should be turned from stop to stop. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) None of the above
F) A) and B)

Question 4

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?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) None of the above
F) A) and B) A

Question 5

A system flush is required when any major power steering repair is performed.

Accepted Answer

A) True 
 B)False

Question 6

Which statement is TRUE regarding the flow control valve on a power steering pump?

Accepted Answer

A)  It uses a variable orifice to control pressure
B)  It is located at the pump outlet
C)  Both A and B
D)  Neither A nor BE) B) and D)
F) B) and C)

Question 7

What is the maximum pressure a power steering pump provides during low speed cornering?

Accepted Answer

A)  500 psi
B)  250 psi
C)  1400 psi
D)  90 psiE) None of the above
F) A) and D)

Question 8

What law states that pressure on a confined fluid is transmitted equally in all directions and acts with equal force on equal areas?

Accepted Answer

A)  Watts' law
B)  Martin's law
C)  Pascal's law
D)  Newton's lawE) All of the above
F) A) and C)

Question 9

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 on some hybrid electric vehicles. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) B) and D)
F) B) and C)

Question 10

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

Accepted Answer

A)  The pump vanes
B)  The flow control valve
C)  A defective hose
D)  The pump rotorE) A) and B)
F) A) and C)

Question 11

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

Accepted Answer

A)  Changing the flow of fluid through the steering gear
B)  Varying the pump output orifice size
C)  Speeding up or slowing down the power steering pump
D)  Bypassing some of the fluid back into the reservoirE) A) and B)
F) A) and C)

Question 12

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

Accepted Answer

A)  Low or contaminated power steering fluid
B)  Slipping power steering pump drive belt
C)  Low tire pressure
D)  Any of the aboveE) None of the above
F) A) and D) D

Question 13

The electrohydraulic power steering pump provides hydraulic power to the steering gear and ________.

Accepted Answer

A)  Valve lifters
B)  Cooling fan clutch
C)  Hydraulic level control system
D)  Brake boosterE) C) and D)
F) None of the above

Question 14

If the steering column of an electric power steering system vehicle is replaced, what may have to be re-learned by the electric power steering control module?

Accepted Answer

A)  Lock-to-lock distance
B)  Vehicle toe-in
C)  Turn signal cancel trigger
D)  Torque sensor zeroE) A) and B)
F) None of the above

Question 15

Which type of variable effort steering design uses a variable bi-directional magnetic rotary actuator built into the steering rack?

Accepted Answer

A)  SSS
B)  Magnasteer
C)  EVO
D)  TFEE) B) and D)
F) A) and C)

Question 16

Technician A says that some power assist systems use an external cooler for the power steering fluid. Technician B says that all variable assist systems are electrically actuated. Who is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) C) and D)
F) A) and C)

Question 17

All power steering pumps have integral reservoirs.

Accepted Answer

A) True 
 B)False

Question 18

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?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) A) and B)
F) C) and D)

Question 19

Which of the following represent typical power steering pressures?

Accepted Answer

A)  Less than 150 psi when straight ahead
B)  Over 750 psi when slowly maneuvering a parking lot
C)  About 450 psi when cornering
D)  All of the above are correctE) None of the above
F) B) and C)

Question 20

Technician A says that one advantage of hydraulics compared to a mechanical linkage is that fluid has no fixed shape. Technician B says that hydraulics offer the opportunity to multiply the input force. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor BE) B) and C)
F) A) and D)

Exam 118: Power-Assisted Steering Operation and Service

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

Correct Answer
verified
B

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

Correct Answer
verified

Technician A says that lifting the vehicle and turning the steering wheel may help bleed air out of some systems. Technician B says that if this procedure is used, the wheels should be turned from stop to stop. Which technician is correct?

Correct Answer
verified

Correct Answer
verified
A

A system flush is required when any major power steering repair is performed.

Correct Answer
verified

Which statement is TRUE regarding the flow control valve on a power steering pump?

Correct Answer
verified

What is the maximum pressure a power steering pump provides during low speed cornering?

Correct Answer
verified

What law states that pressure on a confined fluid is transmitted equally in all directions and acts with equal force on equal areas?

Correct Answer
verified

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 on some hybrid electric vehicles. Which technician is correct?

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified
D

The electrohydraulic power steering pump provides hydraulic power to the steering gear and ________.

Correct Answer
verified

If the steering column of an electric power steering system vehicle is replaced, what may have to be re-learned by the electric power steering control module?

Correct Answer
verified

Which type of variable effort steering design uses a variable bi-directional magnetic rotary actuator built into the steering rack?

Correct Answer
verified

Technician A says that some power assist systems use an external cooler for the power steering fluid. Technician B says that all variable assist systems are electrically actuated. Who is correct?

Correct Answer
verified

All power steering pumps have integral reservoirs.

Correct Answer
verified

Correct Answer
verified

Which of the following represent typical power steering pressures?

Correct Answer
verified

Technician A says that one advantage of hydraulics compared to a mechanical linkage is that fluid has no fixed shape. Technician B says that hydraulics offer the opportunity to multiply the input force. Which technician is correct?

Correct Answer
verified

Exam 118: Power-Assisted Steering Operation and Service

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

Correct AnswerverifiedB

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

Correct AnswerverifiedShow Answer

Technician A says that lifting the vehicle and turning the steering wheel may help bleed air out of some systems. Technician B says that if this procedure is used, the wheels should be turned from stop to stop. Which technician is correct?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedA

A system flush is required when any major power steering repair is performed.

Correct AnswerverifiedShow Answer

Which statement is TRUE regarding the flow control valve on a power steering pump?

Correct AnswerverifiedShow Answer

What is the maximum pressure a power steering pump provides during low speed cornering?

Correct AnswerverifiedShow Answer

What law states that pressure on a confined fluid is transmitted equally in all directions and acts with equal force on equal areas?

Correct AnswerverifiedShow Answer

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 on some hybrid electric vehicles. Which technician is correct?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedD

The electrohydraulic power steering pump provides hydraulic power to the steering gear and ________.

Correct AnswerverifiedShow Answer

If the steering column of an electric power steering system vehicle is replaced, what may have to be re-learned by the electric power steering control module?

Correct AnswerverifiedShow Answer

Which type of variable effort steering design uses a variable bi-directional magnetic rotary actuator built into the steering rack?

Correct AnswerverifiedShow Answer

Technician A says that some power assist systems use an external cooler for the power steering fluid. Technician B says that all variable assist systems are electrically actuated. Who is correct?

Correct AnswerverifiedShow Answer

All power steering pumps have integral reservoirs.

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Which of the following represent typical power steering pressures?

Correct AnswerverifiedShow Answer

Technician A says that one advantage of hydraulics compared to a mechanical linkage is that fluid has no fixed shape. Technician B says that hydraulics offer the opportunity to multiply the input force. Which technician is correct?

Correct AnswerverifiedShow Answer

Correct Answer
verified
B

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
A

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
D

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified