CERAD EXAM 3 - Undersand the use of steering, braking and trasnmission

Question 1

What to consider when braking to a stop at night or poor visibility?

Answer 1

Keep the brake lights illuminated to inform following drivers that you are stopped

Question 2

What can cause a vehicle to move without steering input? (3)

Answer 2

• Camber
  -Crossfall
• Side-winds

Question 3

What defines a good seating position? (2)

Answer 3

• Hands on steerign wheel with slight bend in elbows
• fully depress clutch with slight bend in leg

Question 4

Advantages of Push Pull Steering (2)

Answer 4

• Keeps both hands on the steering wheel
• Allows for immediate turn in either direction if required

Question 5

How should you hold the steering wheel?

Answer 5

Lightly, but ready to grip tightly

Question 6

When should you always have both hands on the steering wheel? (3)

Answer 6

Cornering
Braking
Driving through surface water

Question 7

when is engine braking beneficial? (2)

Answer 7

Loose speed in conditions where the wheels would otherwise lock
Useful in long downward descents

Question 8

What is tappered Breaking? What is its benefit?

Answer 8

Progressive and steadilly increasing, Relax as unwanted speed is lost, release as you stop to avoid jerking
Uses less fuel

Question 9

Where does braking move the weight of the vehicle?

Answer 9

Front Wheels

Question 10

What happens if you brake in a corner?

Answer 10

It upsets the vehicle and can cause a skid

Question 11

What to consider when braking? (4)

Answer 11

Initial Speed
Road Surface
Weather Coniditons
Road and traffic conditions

Question 12

What results in harsh braking? (3)

Answer 12

Poor…
Observation
Anticipation
Planning

Question 13

What to consider when driving with a patient in the vehicle?

Answer 13

The drive should be regarded as part of the treatment plan and poor driving can effect prognosis

Question 14

Most and least comortable seats

Answer 14

Most comfortable - Offside
Middle- nearside
least - anything over a wheel arch

Question 15

3 available features in an auto gearbox

Answer 15

Lock Down
Sport
Manual Selection

Question 16

What gears are used when a given lockdown is selected

Answer 16

All gears up to the lockdown gear (e.g if 3 is slected, 1,2 or 3 can be used)

Question 17

What can happen if a vehicle is driver in lockdown for too long?

Answer 17

Overheat transmission fluid

Question 18

What is the effect of sport mode? (2)

Answer 18

Holds lower gears for longer to improve acceleration
May disengage other systems such as ABS or ESP

Question 19

Important Characteristics of automatic Gearboxes (3)

Answer 19

Creep
Run on
Kick Down

Question 20

Creep?

Answer 20

Vehcile moves on its own in any gear other than P or N, magnitude depends on gravity

Question 21

Run on?

Answer 21

Vehicle will not slow down by use of the engine when the accelerator is released. Feels similar to coasting. Can be controlled using Lock Down

Question 22

Kick Down?

Answer 22

Saftey feature allowing for sudden acceleration by dropping a gear when a situation is dangerous

Question 23

Define brake fade

Answer 23

A reduction in stopping power after sustained or repeated braking

Question 24

What is the main purpose of gears?

Answer 24

Trasnform eng revs into usable power

Question 25

What gear and revs to be used in slippery conditions?

Answer 25

High gear, low revs

Question 26

Should you change gear in a corner and why?

Answer 26

No, can destabilise the vehicle and requires taking one hand off of the steering wheel

Question 27

What does ECO mode do to an auto gear box and why?

Answer 27

Change up at lower revs to improve fuel economy when performance is not required

Question 28

what RPM should you change up at in a deisel and petrol respectivley

Answer 28

2000 D 2500 P

Question 29

fuel percent differences : 70-60 70-50 80-70

Answer 29

9% 15% 25%

Question 30

Eco Driving techniques (6)

Answer 30

Smooth and gentle Keep Rolling Change up earlier Use air con wisely Cut down on electrics Stick to the limit

Question 31

Acceleraiton Sense definition

Answer 31

Vary the vehicle speed in response to changing road or traffic conditions by acurate use of the accelerator, using less brakes or none at all.

Question 32

benefits of Acceleration Sense (3)

Answer 32

Uses less fuel Less wear on the tyres reduced emissions

Question 33

What are the benefits of maintaining constant speed using acceleration in a corner

Answer 33

Even weight distrobution between front and rear ensuring maximum tyre grip

Question 34

Negatives of not having smooth acceleration (4)

Answer 34

Uncomfortable Unnecessary strain on the vehicle Reduces tyre grip Increases fuel consumption

Question 35

What does acceleration capability rely on? (5)

Answer 35

Fuel source Engine Output Effeciency Power:weight ratio Load