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Automotive Level 1 > Suspension and Steering > Flashcards

Suspension and Steering Flashcards

1
Q

What is the purpose of the suspension system

A

To maintain contact with the road, support vehicle weight, absorb and dampen and maintain wheel alignment

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2
Q

What does Hookes Law state

A

That it takes twice the force to move a spring twice as far.

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3
Q

What does Newtons First Law of Inertia state

A

That an object will stay at rest of in unified motion until acted upon by an external force

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4
Q

What is the main function of a frame

A

To provide support for all chassis components

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5
Q

What are the three main types of frames

A

Body over frame, Unibody and Subframe

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6
Q

What is the purpose of springs

A

Support weight of vehicle and absorb road shocks

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7
Q

What are four examples of springs

A

Coil, Air, Leaf, Torsion bar

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8
Q

What are the three types of coil springs

A

Full open wire, Tapered wire closed and Pigtail

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9
Q

What are the types of spring rates

A

Variable and linear

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10
Q

What is Jounce

A

The upward motion when a vehicle hits a bump in the road

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11
Q

What is Rebound

A

The downward motion of the suspension when it falls into a dip or hole

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12
Q

What is added to the suspension to dampen and stop the up and down motion while on a bumpy road

A

Shock Absorber

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13
Q

What is sprung weight

A

All of the vehicles weight that is supported by the springs

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14
Q

What is unsprung weight

A

The weight of components not supported by the springs

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15
Q

What are some examples of sprung weight

A

Body, Frame, Engine, Trans

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16
Q

What are some examples of unsprung weight

A

Steering Knuckle, rear solid axles

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17
Q

What are some types of shock absorbers

A

Double tube, Direct and indirect, Single and double, Air , Gas

18
Q

What is the most common shock absorber ratio used on passenger cars

A

50/50

19
Q

Describe the difference between tension and compression ball joints

A

Tension ball joints will release once loosened, compression will stay in place

20
Q

What is a load carrying ball joint

A

Supports the cars weight and is generally on the control arm that holds or seats the spring

21
Q

On a lower control arm carrying the spring rate is the ball joint a follower or load carrying, tension or compression?

A

Load carrying, tension

22
Q

What are the three stages of a variable rate spring

A

Inactive, Transitional, Active

23
Q

What gas can be found in some shock absorbers

A

Nitrogen

24
Q

Why is Nitrogen gas used in gas charged shock absorbers

A

To help reduce aeration

25
Q

What is the job of control arms

A

Used to locate wheel and allow up and down travel of suspension

26
Q

What does SLA stand for

A

Short and Long Arm

27
Q

What are the four types of independent suspension

A

SLA, McPherson Strut, Modified Strut, Twin I Beam

28
Q

What is a Live Axle

A

An axle that drives the wheels

29
Q

What is a Dead Axle

A

An axle that does not drive

30
Q

What component of the suspension can twist and help transfer movement from side to side during cornering

A

Anti - Sway Bar

31
Q

What are the two types of steering linkages found in automotive

A

Rack and Pinion , Parallelogram

32
Q

What safety feature was introduced in 1968 to the steering system

A

A collapsible steering column

33
Q

What steering linkage is found on larger vehicles

A

Parallelogram Type

34
Q

What are to main components of a Rack and Pinion

A

Toothed Rack, Pinion gear and worm gear

35
Q

What does worm gear preload do

A

Eliminates worm shaft endplay, prevents steering free play and vehicle wander

36
Q

Name the three steering systems

A

Manual, Hydraulic, Electric

37
Q

What type of ball joint allows free play

A

Load Carrying

38
Q

What are the two common SLA systems in use today

A

Coil Spring and Strut

39
Q

What vehicles commonly use leafsprings in the rear

A

Pickup Trucks

40
Q

What suspension can change ride height during operations

A

Automatic load- leveling air suspension

41
Q

Name the components of a steering gear or parallelogram linkage

A

Pitman arm, Idler arm, Centre Link, Inner and outer tie rods, adjuster sleeve

42
Q

When is hydraulic fluid pressure in the Power steering system the greatest

A

During steering assist when the wheels are held against the steering stops

Automotive Level 1 (3 decks)

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