WorksheetsCode95 - chapter 1
Total questions: 62
Worksheet time: 31mins
Name
Class
Date
1.
When is the engine reaching its maximum power?
a)
at optimal fuel consumption
b)
at optimal engine exhaust emissions
c)
at maximum usable speed
2.
When a motor vehicle obtains an economical fuel consumption?
a)
when driving with full load
b)
when driving at constant speed without load
c)
during dynamic acceleration, with full use of the parameters of the drive unit
3.
What can excessive fuel consumption be related to, among other things?
a)
incorrect driving technique
b)
long-term use of retarder on long descents
c)
using a high torque during acceleration
4.
What can excessive fuel consumption be related to?
a)
failure of the injection system
b)
the use of retarder on flat areas
c)
the occurrence of a vehicle differential lock
5.
What influences excessive fuel consumption?
a)
overloading the engine during dynamic acceleration by shifting gears too quickly
b)
using the retarder on descents
c)
replacement of friction elements of the brake system
6.
What can increase fuel consumption?
a)
using the retarder on descents
b)
early shifting gears during dynamic acceleration
c)
the use of a high torque range during dynamic acceleration
7.
What is the use of a tachometer?
a)
listening to the engine sound
b)
by constantly comparing the readings of the tachometer and other indicators
c)
observation of indications when it does not reduce the safety of driving the vehicle
8.
What should be used, inter alia, the tachometer indications?
a)
for continuous speed control while driving with a steady motion
b)
primarily to control the optimal turnover during acceleration
c)
primarily for the analysis of rotational speed values when reducing gears
9.
Is the tachometer an important control and measurement device in a truck?
a)
no, it has little practical application
b)
yes, if the driver does not have a lot of experience in driving a truck
c)
yes - regardless of the driver's experience
10.
What is the reason for the reduction of noise emitted by the vehicle?
a)
increase in vehicle weight
b)
increase in engine speed
c)
deceleration of the vehicle
11.
What is the driver obliged to do to reduce the nuisance of the vehicle's impact on the environment?
a)
driving at low speed
b)
for switching off the engine of the vehicle on descents
c)
adherence to the vehicle owner's manual
12.
What is the driver obliged to do to reduce the nuisance of the vehicle's impact on the environment?
a)
using only low engine speeds
b)
response to the occurrence of leaks of operating fluids from the vehicle
c)
avoid using the driver's compartment air conditioning
13.
What is primarily influenced by the torque characteristics?
a)
the value of the maximum speed achievable by the vehicle
b)
on the vehicle's ability to accelerate within a certain range of engine speed
c)
on the load capacity of the vehicle
14.
What is useful, among others, the operating characteristics of the drive unit?
a)
to measure the amount of instantaneous fuel consumption
b)
for the optimal selection of the gear ratio
c)
if the driver is experienced, technical characteristics are of secondary importance
15.
What is the characteristic of specific fuel consumption informing about?
a)
about the operating conditions of the engine, in which it works with the best efficiency
b)
about the dynamic indicator of the vehicle
c)
about fuel consumption at constant speed
16.
Does the high flexibility of the engine affect the vehicle's acceleration ability?
a)
has no effect
b)
it increases the vehicle's acceleration ability
c)
it reduces the vehicle's acceleration ability
17.
Does a higher number of gear ratios result in higher fuel consumption?
a)
has no effect
b)
always conducive to increased fuel consumption
c)
may have such an effect
18.
Does a heavy vehicle load affect the truck's acceleration ability?
a)
reduces the acceleration capacity of the truck
b)
increases the truck's acceleration ability
c)
has such an effect, but only on mountain roads
19.
What can be affected by increasing the load on the truck?
a)
it has no effect if the load is properly distributed and secured
b)
reduces fuel consumption when the load is placed over the driving axle
c)
may cause a change in the behavior of the vehicle
20.
Could a heavy truck load have an effect on the truck's stopping distance?
a)
has no effect if the braking system is functioning properly
b)
can increase the braking distance
c)
no, because a modern electronically controlled air braking system stops the vehicle in the same distance - regardless of the load
21.
Does a heavy load on the car affect its hill-climbing ability?
a)
yes, because the climbing ability is reduced
b)
has no effect if the driver selects a suitably low gear in advance and then climbs the hill without shifting.
c)
has no effect if the torque of the drive unit is high
22.
Does road configuration (multiple curves, slopes) affect fuel consumption?
a)
has no effect
b)
reduces fuel consumption if the driver changes gears frequently
c)
can increase fuel consumption
23.
Does frequent stronger braking affect the operational fuel consumption?
a)
can significantly increase fuel consumption
b)
has no effect
c)
significantly reduces fuel consumption and improves the efficiency of the pneumatic braking system
24.
Does sudden braking affect driving safety?
a)
yes, as it may endanger the safety of the cargo being transported
b)
no, because the driver only brakes abruptly in an emergency
c)
has no effect
25.
How does rapid acceleration affect driving safety?
a)
has no effect
b)
large if taking place on slippery ground
c)
minor if the vehicle is equipped with ASR / TCS
26.
Does an electronically controlled air brake always prevent skidding of a truck, semi-trailer, or trailer / bus with two axles or articulated bus?
a)
no, this system stabilizes tandem’s stability during braking
b)
yes, this system is responsible for the stability of the tandem during braking and also prevents skidding
c)
yes, except when driving on slippery surfaces
27.
Does too little tire pressure on only one axle affect fuel consumption?
a)
yes, it increases fuel consumption
b)
yes, but it is not a noticeable quantity
c)
yes, as long as the pressure drop occurs on the axle with twin tires
28.
What is the effect of insufficient tire pressure on driving safety?
a)
little
b)
none
c)
meaningful
29.
How can I obtain favorable fuel consumption when driving at a constant speed in mountainous terrain?
a)
always use a cruise control
b)
brake only with retarders when going downhill
c)
properly select the gear ratio in relation to the speed and optimally use the system of maintaining constant speed during descent
30.
What can the rolling resistance acting on the vehicle depend on?
a)
engine power
b)
the tread pattern of the tires
c)
the torque value
31.
Does the road configuration (flat terrain, few bends) affect fuel consumption?
a)
has no effect - fuel consumption depends on driving style and engine parameters
b)
can help to reduce fuel consumption
c)
can increase fuel consumption regardless of driving technique
32.
When is the optimum fuel consumption for a truck?
a)
when the engine speed is between 800 - 1000 rpm. when accelerating
b)
when the RPM indicator is in the green area during acceleration
c)
when used while accelerating high engine revs
33.
What parameter is important when the truck goes up?
a)
high torque
b)
high maximum speed obtained in advance
c)
specific fuel consumption
34.
When should a truck driver shift up or down a gear?
a)
shift gears as often as possible in all situations
b)
you should change the gears as little as possible
c)
optimum gear shifting is always based on driving speed, vehicle load and road conditions
35.
What is the optimal engine speed to maintain when driving your truck on a highway?
a)
always between 800-1000 rpm
b)
not less than 1300-1800 rpm
c)
as low as possible when driving at a constant speed in the highest possible gear
36.
When is the fuel consumption of a truck with a trailer the lowest?
a)
when driving dynamic, with full use of engine parameters
b)
when driving uphill with a full load
c)
while moving at a constant speed
37.
What is the name of the engine's ability to adjust its speed to load by itself?
a)
flexibility
b)
high speed
c)
fading
38.
When is the specific fuel consumption low in relation to the developing power?
a)
when the engine reaches its maximum power value
b)
when the engine is at least 60% of its maximum power
c)
with the engine running at a speed close to the highest torque
39.
Is very early gear shifting at low revs when accelerating with a laden truck (bus with a heavy load of passengers and luggage) correct?
a)
yes, because low fuel consumption is this achieved
b)
no, because this way of driving does not allow to use the optimal operating ranges of the drive unit
c)
yes, because that's what eco driving is all about
40.
Should the truck / bus driver take the torque characteristics into account when operating an internal combustion engine?
a)
no, as this parameter only applies to the designer of internal combustion engines
b)
no, because this parameter does not affect the way the engine is operated
c)
yes, this parameter is very important for the correct operation of the engine
41.
What is the ESP system in a truck / bus?
a)
vehicle track stabilization system
b)
traction control system
c)
the electronic synchronization of the pneumatic braking system
42.
What does the green box marked on the tachometer inform the truck / bus driver about?
a)
about the fact that when driving with a steady motion (at a constant speed), the pointer of the tachometer should always be in this field
b)
that the tachometer needle must under no circumstances go beyond this range during acceleration
c)
about the optimum operating range of the drive unit, especially during acceleration
43.
Can the power of the drive unit be affected by the truck's climbing ability?
a)
no, only the torque is responsible for that
b)
yes
c)
no, it is only the flexibility of the engine that is responsible for that
44.
What should a truck driver consider if he intends to shift to a higher gear?
a)
mainly my own preferences and my own experience in driving a truck
b)
mainly the type of road on which the movement takes place
c)
characteristics of the engine torque
45.
Which component should the truck driver adjust the gear to?
a)
driving speed
b)
only for traffic conditions
c)
primarily for the driving situation, regardless of speed
46.
From the perspective of road safety, is it more advantageous to shift to a higher gear very early or slightly later?
a)
a bit later
b)
very early
c)
the described activity in no way affects road safety
47.
What can the tachometer be used for in a truck, bus?
a)
for selecting the optimal speed for the operation of the engine brake
b)
to check that the truck does not exceed 1300 rpm when accelerating
c)
it is an unnecessary device for an experienced driver
48.
What brakes are called continuous action brakes?
a)
only service brakes (working)
b)
only secondary braking device (emergency) brakes
c)
only alternative brakes (retarders)
49.
What does the green box on the tachometer of a truck / bus mean?
a)
the range of optimal operation of the engine brake
b)
range of optimal engine power
c)
range of optimal speed for acceleration
50.
What does the green box on the tachometer of a truck / bus mean?
a)
optimal RPM range for acceleration
b)
the optimal range of engine operation both during acceleration and driving at a constant speed
c)
the range of optimal engine operation
51.
What does the blue box marked on the tachometer mean for some truck / bus manufacturers?
a)
the field of highest efficiency (full power) of the engine brake
b)
the field of non-economic operation of the engine
c)
the field of optimal operation of the turbocharger with variable geometry
52.
What is the button on the gear lever (on the side) for in the photo?
a)
it is a button for selecting the gearbox operating mode - between dynamic and economy mode
b)
it is the gearbox preselection button
c)
this is the maneuver mode activation button
53.
At which the engine speed range of the truck is achieved high power engine brake?
a)
at high
b)
at low
c)
always within the maximum torque range
54.
Among other things, what does the use of a so-called variable geometry turbocharger contribute to in modern truck engines?
a)
to eliminate the turbo lag phenomenon
b)
only to increase engine power
c)
only to reduce diesel consumption
55.
Is the eddy current phenomenon used for the operation of a hydrodynamic retarder in trucks?
a)
yes, but only for retarders with their own oil circuit
b)
no
c)
yes, but only for retarders with a common oil circuit with the gearbox
56.
To which failure could lead continuation of driving a truck equipped with SCR without AdBlue?
a)
only to reduce engine power
b)
to the failure of the selective catalytic reduction catalyst
c)
to the failure of the fuel system
57.
Under what conditions of motion is it advantageous to keep the engine speed close to the maximum torque value?
a)
when climbing a hill
b)
while driving at a constant speed
c)
when going down a hill
58.
When should an upshift take place?
a)
not later than after exceeding 1400 rpm
b)
depending on the torque characteristics of the engine
c)
every time the road configuration is changed
59.
What is the reason for the increase in noise emitted by the vehicle?
a)
from the increase in vehicle weight
b)
from an increase in engine speed
c)
from a decrease in engine speed
60.
Does the road configuration (flat terrain, few bends) affect fuel consumption?
a)
has no effect - consumption depends on driving style and engine parameters
b)
can help to reduce fuel consumption
c)
can increase fuel consumption regardless of driving technique
61.
What parameter is important when the truck is driving uphill?
a)
high torque
b)
high maximum speed obtained in advance
c)
specific fuel consumption
62.
When is the fuel consumption lowest in a truck?
a)
with dynamic driving, with full use of engine parameters
b)
when going uphill with full load
c)
while moving at a constant speed
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