158 Chassis

The advanced suspension shown in the diagram is?

• a double wishbone strut

• an adaptive air suspension unit

• an adjustable coil over unit

• hydro static suspension unit.

Which of the following methods can be used to diagnose a faulty inductive ABS sensor?

• Connect an oscilloscope to the output pins and rotate the wheel.

• Connect an ohmmeter across the output and earth pin it should read 175ohms.

• There is no accurate method of checking an ABS sensor.

• Connect a 5V feed to the sensor and measure its resistance

Which other integrated chassis system does EBD require to operate?

• Anti-lock brakes.

• Electric power steering.

• Self-servo action.

• Traction control.

The primary function of a traction control system is to

• alter the suspension setting to increase grip to the spinning wheel

• increase engine power to the non-slipping wheel

• activate the vehicles differential lock

• reduce engine power and brake the spinning wheel.

Which front suspension angles combine together to achieve self-centering action?

• Swivel axis inclination and castor.

• Castor and toe in.

• Swivel axis inclination, castor and camber.

• Swivel axis inclination and camber.

How does an active suspension system compensate for increased mass exerted on a vehicle?

• It increases ride height only

• It reduces ride height but stiffens suspension.

• It maintains constant ride height and suspension stiffness.

• It reacts only to unsprung mass.

Which one of the following is a possible cause of a burst hose in a hydraulic power steering system?

• Faulty pressure relief valve.

• Faulty control valve.

• Over revving the engine.

• Over filling the fluid reservoir

Which one of the following is a cause of a hydraulic PAS displaying symptoms of lumpiness when turning from lock to lock?

• Air trapped in the hydraulic system.

• Low output from the high pressure pump.

• Pressure relief value stuck open.

• Worn wheel bearings.

Which component can be adjusted to reset ride height on a vehicle fitted with air suspension?

• Load sensing valve operating arm.

• Trim height valve.

• Vehicle leveling valve.

• Compressor unloading valve

When a master cylinder is not serviceable, a replacement unit should be fitted because it

• increases the monthly sale of parts

• requires less skill on the part of the technician

• ensures that brake efficiency will be improved

• ensures safety and makes a more cost effective repair.