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körkort > stats and percentages COPY > Flashcards

stats and percentages COPY Flashcards

1
Q

what % of people who die in car accidents were not wearing a seat belt?

A

40 percent

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2
Q

at what speed do airbags deploy?

A

20-30 km/hr

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3
Q

how far must the driver sit behind the airbag?

A

25 cm

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4
Q

how far must the passenger sit behind the airbag?

A

50 cm

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5
Q

you are responsible that all passengers under age X have the right sort of seatbelt

A

age 15

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6
Q

people under this height must be in a special child seat

A

135 cm

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7
Q

children in this age range must be in a rear-facing seat

A

9 months to 4 years

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8
Q

children must be in a baby seat until this age

A

9 months

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9
Q

children must be this tall in order to sit in a seat with an airbag

A

140 cm

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10
Q

how many people can fit in a private car, max?

A

1 driver, 8 passengers

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11
Q

how does a roof box decrease a car’s fuel efficiency?

A

10 percent less efficient

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12
Q

you need to mark a load that projects backwards if it projects longer than this amount

A

one meter

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13
Q

if a load projects more than this amount forward it needs to be marked, even if it is visible

A

one meter

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14
Q

how far can a sideways load project?

A

20 cm to each side

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15
Q

what is the maximum vehicle width for a car with a projecting load?

A

260 cm

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16
Q

how does side force increased in relation to speed?

A

quadratically

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17
Q

how does BRAKING DISTANCE increase in relation to speed?

A

Quadratically

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18
Q

how does reaction distance increase in relation to speed?

A

proportionally

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19
Q

how does stopping distance increase in relation to speed?

A

the braking distance increased quadratically, but the reaction distance increased proportionally

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20
Q

what is the formula for reaction distance if a driver reacts in one second?

A

round speed to the nearest 10, remove the zero, and multiply by 3

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21
Q

what is the formula for braking distance?

A

divide the speed by ten, square the result, then divide by two

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22
Q

how does the reaction time increase in relation to speed?

A

trick question. it doesn’t. if the reaction time doubles, the reaction distance doubles, but the reaction time is not calculated based on speed.

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23
Q

stopping distance in ideal conditions when going 30 km/hr

A

13.5 meters

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24
Q

stopping distance in ideal conditions when going 50 km/hr

A

27.5 meters

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25
Q

stopping distance in ideal conditions when going 70 km/hr

A

45.5 meters

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26
Q

stopping distance in ideal conditions when going 90 km/hr

A

67.5 meters

27
Q

stopping distance in ideal conditions when going 110 km/hr

A

93,5 meters

28
Q

what should you do after changing the wheel?

A

retighten nuts after 50-100 km

29
Q

how does kinetic energy increase in relation to speed?

A

quadratically

30
Q

what kind of steering (over or under) is typical of a front wheel drive car?

A

understeering

31
Q

at what age should tires be replaced,even if tread depth is still acceptable?

A

over 10 years old

32
Q

what is the minimum tread depth for summer tired?

A

1.6 mm

33
Q

what are the rules for using a spare wheel?

A

no futher than 80 KM and no more than 80 km/hr

34
Q

what is the sign of a worn steering system?

A

steering wheel begins to shake

35
Q

what does it mean if the steering wheel jerks between easy and sluggish?

A

dirt or air has probably entered the power steering system

36
Q

what kind of force makes the main brake work?

A

hydraulic

37
Q

what does brake servo do?

A

makes it easier to brake when the engine is running

38
Q

what do you do if the brakes vibrate when using ABS brakes?

A

keep braking

39
Q

what allows you to strongly brake by putting light pressure on the brakes?

A

brake servo

40
Q

how do you emergency brake in a car with ABS?

A

brake AS HARD AS POSSIBLE

41
Q

how should a good brake feel?

A

the pedal should stop halfway down and feel rigid

42
Q

what does it mean if the break pedal feels spring?

A

air in the system

43
Q

what does it mean if the brake pedal pushes down slowly ?

A

may be a leak

44
Q

what does it mean if the brake pedal engages close to the floor?

A

might need to be repaired or adjusted

45
Q

how do you check the brake servo?

A

press brake pedal down repeatedly. then, hold down the pedal as you start the engine. the pedal should move downward when you start the engine.

46
Q

what shape is on the lid to the brake fluid?

A

a hexagon

47
Q

what are the TWO meanings of the sign with the exclamation point?

A

the brake fluid level is too low OR the parking brake is engaged

48
Q

how do you calculate meters per second?

A

divide speed by 3.6

49
Q

how do you use a light horn in an emergeny?

A

flash full beams on and off

50
Q

what lights must not be combined with dipped headlights or fog lights?

A

daytime running lights

51
Q

when do you turn off the rear fog lights?

A

as soon as you’re convinced that the driver behind you has sighted you

52
Q

what lights do you use when stopping or parking on a road with poor visibility?

A

parking lights

53
Q

what does it mean if you hear a high pitched squealing sound when starting the engine?

A

the alternator belt isn’t working

54
Q

what is the sign of a broken fuse?

A

the metal strip running between the fuse terminals has a break in it

55
Q

how do you replace a fuse (in terms of what connects to what)?

A

connect matching colors

56
Q

if a battery is only 50 percent charged, what outside temp can it freeze at ?

A

minus 7 c

57
Q

if a battery is fully charged, at what temp is there a risk of freezing

A

minus 65 degrees celsisus

58
Q

if a battery is 80 % charged, it risks freezing at this outdoors temp:

A

minus 45 degrees celsius

59
Q

what color terminals get connected first when jump starting a car?

A

red (positive)

60
Q

what is the termf for the weight of the car + trailer at any given moment, including the driver, passengers, and cargo?

A

gross weight

61
Q

what is the weight of the car and driver (no load, no passengers)?

A

kerb weight

62
Q

what is the term for the MAXIMUM weight a car can have, including drivers, passengers, and cargo?

A

total weight

63
Q

what is the term for the total weight minus the car, safety equipment, and driver?

A

maximum load

64
Q

what kind of insurance must all cars have?

A

third party insurance

körkort (5 decks)

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