Question: 1.5.01-009

3 Points

Licenses: Basic material

How can you reduce the noise made by a car?

Choose one or multiple correct answers

A. By driving at a low engine speed
B. By using all-terrain tyres
C. By removing the air filter

Scroll down to correct answer

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Correct answer

A. By driving at a low engine speed

Comment

In the low-speed speed range, the engine runs quieter than in high-revving areas. Deep-tread tires and driving without air filters also cause noise pollution. A driving style predominantly in the low-speed range saves fuel, is environmentally friendly and quiet. The minimum speeds must, however, be met, otherwise the engine runs twitchy, is cogging and sputtering. The lower the speed at which the engine is still running without cogging, the lower the noise.

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Environmental protection

Chapter 1.5.01

1.5.01-001 What must you remember in the interests of environmental protection?

1.5.01-003 What must be regularly serviced to prevent high fuel consumption and excessive pollutant emission?

1.5.01-004 What happens as a result of tyre pressures being well below the recommended levels?

1.5.01-005 When should you switch off the engine to save fuel and reduce pollution?

1.5.01-006 Your vehicle loses oil. How much drinking water can be polluted by a single drop of oil?

1.5.01-007 What must you remember when refuelling?

1.5.01-008 The engine and exhaust system of a vehicle have been "souped up". What could be the effects?

1.5.01-009 How can you reduce the noise made by a car?

1.5.01-010 Where can used oil, lubricants and car batteries be taken to be disposed of properly?

1.5.01-011 How can you drive fuel-efficiently when travelling at a constant speed?

1.5.01-012 At which engine speed range will fuel consumption be lower?

1.5.01-013 You have to wait because of a closed rail-crossing barrier. How can you now help protect the environment and save fuel?

1.5.01-014 What measures help protect the environment?

1.5.01-015 What should you do to protect the environment?

1.5.01-016 What can regular vehicle maintenance help achieve?

1.5.01-102 What can cause unnecessary noise pollution when driving?

1.5.01-103 How should you change gears in order to drive with particular consideration to the environment and fuel saving?

1.5.01-104 What is important to avoid pollution and to save energy when driving?

1.5.01-106 How is fuel wasted and the environment polluted?

1.5.01-108 What indicates excessive petrol consumption due to high wear or wrong tuning of the engine?

1.5.01-109 What kind of driving results in high fuel consumption?

1.5.01-110 How do you drive with consideration to the environment?

1.5.01-112 How can you cover more kilometres on less fuel?

1.5.01-114 What can help save fuel and reduce pollution?

1.5.01-115 What can you do to help protect the environment?

1.5.01-116 How can you achieve efficient fuel consumption and low pollutant emissions?

1.5.01-117 Other road users draw your attention to the persistent thick smoke coming from your exhaust. What do you have to do?

1.5.01-118 Why is it beneficial to use low viscosity engine oil?

1.5.01-119 What should you do after starting the vehicle?

1.5.01-120 How can you save fuel?

1.5.01-121 How can you minimise tyre wear?

1.5.01-122 What vehicles are generally exempt from the ban on road traffic in "environmental zones"?

1.5.01-123 When is it sensible to switch off a combustion engine?

1.5.01-124 You are driving through city traffic in rush hour. What are the effects of stop-and-go driving?

1.5.01-125 What is a pre-condition for environmentally-friendly and energy-saving driving?

1.5.01-126 You are driving a motor vehicle with a manual gearbox. What style of driving results in higher fuel consumption within a built-up area?

1.5.01-127 You are driving a motor vehicle with a manual gearbox. How can you reduce the fuel consumption of your vehicle?

1.5.01-128 How can you reduce the noise generated by your motor vehicle?

1.5.01-129 What should you do to help protect the environment?

1.5.01-130 You are driving a motor vehicle with a manual gearbox. When driving, what can cause avoidable noise pollution?

1.5.01-131 You are driving a motor vehicle with a manual gearbox on a level carriageway. How should you change gears so as to drive in a particularly environmentally conscious and economical way?

1.5.01-132 You are driving a motor vehicle with a manual gearbox. What type of behaviour pollutes the environment?

1.5.01-133 You are driving a motor vehicle with a manual gearbox. How can you achieve efficient fuel consumption?

1.5.01-134 What should you consider after starting your vehicle?

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