When is the engine reaching its maximum power?

• at optimal fuel consumption
• at optimal engine exhaust emissions
• at maximum usable speed

When a motor vehicle obtains an economical fuel consumption?

• when driving with full load
• when driving at constant speed without load
• during dynamic acceleration, with full use of the parameters of the drive unit

What can excessive fuel consumption be related to, among other things?

• incorrect driving technique
• long-term use of retarder on long descents
• using a high torque during acceleration

What can excessive fuel consumption be related to?

• failure of the injection system
• the use of retarder on flat areas
• the occurrence of a vehicle differential lock

What influences excessive fuel consumption?

• overloading the engine during dynamic acceleration by shifting gears too quickly
• using the retarder on descents
• replacement of friction elements of the brake system

What can increase fuel consumption?

• using the retarder on descents
• early shifting gears during dynamic acceleration
• the use of a high torque range during dynamic acceleration

What is the use of a tachometer?

• listening to the engine sound
• by constantly comparing the readings of the tachometer and other indicators
• observation of indications when it does not reduce the safety of driving the vehicle

What should be used, inter alia, the tachometer indications?

• for continuous speed control while driving with a steady motion
• primarily to control the optimal turnover during acceleration
• primarily for the analysis of rotational speed values when reducing gears

Is the tachometer an important control and measurement device in a truck?

• no, it has little practical application
• yes, if the driver does not have a lot of experience in driving a truck
• yes - regardless of the driver's experience

What is the reason for the reduction of noise emitted by the vehicle?

• increase in vehicle weight
• increase in engine speed
• deceleration of the vehicle