Chassis level 3

The presence of air in a hydraulic braking system will cause:

• a) a very 'spongy' brake pedal during braking
• b) corrosion of the brake lines and pistons
  
• c) a significant reduction in braking efficiency
  
• d) the brake fluid to boil under prolonged braking
  

A driver complains of steering wheel 'shimmy' that gets worse as the vehicle's speed increases. This most likely indicates:

• a) the tyre pressures are too high
  
• b) the front wheels need balancing
  
• c) the wheel alignment needs adjusting
• d) the shock absorbers' need replacing
  

Which of the following faults could be caused by worn shock absorbers?

• Increase in braking distance.
• b) Poor vehicle acceleration
  
• c) Reduced road spring oscillation
  
• d) Decrease in braking distance
  

ONE advantage of alloy road wheels compared with steel road wheels is they:

• a) increase unsprung weight
  
• b) reduce unsprung weight
  
• c) are cheap to manufacture
  
• d) reduce heat transfer
  

In relation to steering geometry 'camber angle' is defined as:

• a) the outward or inward tilt of the road wheel
  
• b) the angle between the kingpin and the wheel
  
• c) the backward tilt of the kingpin or swivel pin
  
• d) the inward tilt of the kingpin or swivel pin

In the picture of a brake caliper, what is the function of the component labelled 2?

• a) To hold the brake disc to the wheel
  
• b) To ensure the brake disc runs true
• c) To pull the brake pads away from the disc
• d) To push the brake pads against the disc
  

In a hydraulic power steering system the maximum pressure is limited by the:

• a) hydraulic pump
• b) MAP sensor
  
• c) control valve
• d) relief valve
  

In relation to a vehicle, what does the abbreviation “VIN” mean?

• a) Vehicle Information Number
  
• b) Vehicle Identification Number
  
• c) Vehicle Interpretation Number
• d) Vehicle Introduction Number
  

One possible cause of a vehicle pulling to the left hand side from the straight-ahead position is:

• a) incorrect nearside tyre pressures
  
• b) worn off side wheel bearing
  
• c) offside front brake binding
  
• d) worn offside front damper

At high speed the steering system suffers from a vibration which is not wheel balancing.One possible cause is:

• a) worn suspension dampers
  
• b) incorrect tyre pressures
• c) a seized track rod end
• d) a faulty ABS sensor