Chapter 6

Question 1

How to use your gears to echo driving

Answer 1

Shift to a hoigher gear as soon as you can and drive at as high gear as possible. (5th gear from 50-60 km)
When accelerating , shift to higher gear when the enginge reaches 2500 revolutions per minutes.

When doing an engine break, shift to a lower gear when the engine drops to 1300 rpm.

Question 2

What fuels are fossil fuels?

Answer 2

The combustion emits carbon dioxid.
Petrol
Diesel
Natural gas

Question 3

What are biofuels?

Answer 3

They do not contribute to the greenhouse effect.

• ethanol
• biogas
• biodiesel

Question 4

What portion of the carbon dioxid emissions in Sweden is caused by road traffic?

Answer 4

1/3

Question 5

What are nitric oxides?

Answer 5

tropospheric ozone layer. Contribute to the acidification of nature and eutrophication of seas and lakes. Irritate our mucus membranes and affect our airways.

Question 6

What is the tropospheric ozone?

Answer 6

Forms where sunlight meets greenhouse gases. It is greatest in the summer months.

Question 7

Soot and particles?

Answer 7

repiratory problems and risk of cancer
Biggest problem in build-up areas.
Formed by engine combustion and in connection with wear from studded tires.

Question 8

Noise and infrasound

Answer 8

Infra-sound cannot be detected but can contribute along with noise to disturbance in sleep, insomnia, concentration difficulties, headaches and tiredness

Question 9

What does the catalytic converter do?

Answer 9

converts 80-95% of the harmful substances to carbon dioxide.
It only works when it has reached it’s working temperature. cold starts and short journeys the exhuast fues won’t be purified

Question 10

How long before driving should the engine block heaters be used?

Answer 10

-15C: 90 min
0C: 60 min
10C: 30 min

Question 11

What is HA oils?

Answer 11

Tires contain substances which are harmful for the environnement that are released when then wear out. HA oils (high aromatic oils) for ex.
Should choose tires that do not contain toxic oils such as marked with the Nordic Eco-label

Question 12

What is the positive side of choosing tires with lowest rolling resistance?

Answer 12

Diminish fuel consumption by 3-5%

Question 13

Can air pressure affect the fuel consumption?

Answer 13

yes. too low pressure increases the fuel consumption

Question 14

How much does the air conditioning increase fuel consumption?

Answer 14

5-10%

Question 15

Does 4 wheel drive increase fuel consumption?

Answer 15

yes, 5%

Question 16

Does automatic transmission increase fuel consumption?

Answer 16

yes, 0-20%

Question 17

When washing you car what is important regarding the environment?

Answer 17

Places where water flow into drains should not be used. Should instead go to a clean-it yourself wash facility as the drains are equipped with oil separators.

it is good to was your car as well, as dust won’t stick and you will not need to wash your car as often.

Question 18

How does carbon monoxide affect the body?

Answer 18

impairs the blood’s ability to transport oxygen