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100
Which HV components are not used in the eEconic?
a) Brake chopper
b) Drive inverter
c) CCS charging plug
d) Braking resistor
e) Refrigerant compressor
a) Brake chopper
d) Braking resistor
100
Which of the following control units are supplied with 24 V on the low-voltage side?
a) eCPC
b) BMS
c) eTCM
d) eKMV
e) eDAC
c) eTCM
100
What are the general purposes of a high-voltage battery?
a) Store electrical energy b) Supply high-voltage components with electrical energy c) Absorb electrical energy during a charging cycle d) Produce electrical energy e) Direct power supply for the 24 V components in the vehicle
a) Store electrical energy
b) Supply high-voltage components with electrical energy
c) Absorb electrical energy during a charging cycle
100
In which scenario may a manual battery evaluation be performed?
a) All XENTRY diagnostic devices are running an update. To save time, I am allowed to run a manual evaluation.
b) XENTRY diagnosis is unable to establish communication with the BMS of the respective battery pack to be evaluated. In this case, I can manually evaluate the battery.
c) A manual and diagnosis-guided evaluation of the battery must be carried out for each vehi-cle in order to safely rule out possible hazards.
d) Manual evaluation of the battery must be carried out as soon as the vehicle has been de-energized.
e) Manual battery evaluation may also be carried out by an employee with an understanding of high-voltage contexts.
b) XENTRY diagnosis is unable to establish communication with the BMS of the respective battery pack to be evaluated. In this case, I can manually evaluate the battery.
100
Mette Frederiksen er ikke færdig med at tale om danskernes _______moral:
Mette Frederiksen er ikke færdig med at tale om danskernes arbejdsmoral: 'Jeg forstår faktisk ikke, det er kontroversielt'
Statsminister Mette Frederiksen har lagt mærke til en tendens, hvor flere taler åbent om det fede i ikke at gå på arbejde
200
Which of the following are HV components?
a) Hydraulic pump for steering
b) Electric air compressor
c) Coolant pump
d) PTC booster heater
e) Pyrofuse
b) Electric air compressor
d) PTC booster heater
200
What must be taken into account when measuring insulation resistance?
a) An insulation resistance measurement must be carried out with a higher voltage than the actual operating voltage (e.g. with 500 VDC for eActros / eEconic)
b) In the insulation resistance measurement, the specified value is less than 1 ohm
c) An insulation resistance measurement must be carried out with a low voltage so that no components can be damaged (maximum 10 volts)
d) The vehicle must not be de-energized during the insulation resistance test
e) The vehicle must be de-energized for the insulation resistance test
a) An insulation resistance measurement must be carried out with a higher voltage than the actual operating voltage (e.g. with 500 VDC for eActros / eEconic)
e) The vehicle must be de-energized for the insulation resistance test
200
What is the typical end-of-charge voltage of a lithium-ion cell?
a) 5.3 V b) 3.0 V c) 2.5 V d) 4.2 V e) 1.1 V
d) 4.2 V
200
When is a battery considered to be not safe for transport?
a) As soon as there is an acute hazard from the battery (e.g. electrolyte leakage)
b) If the battery housing has a 2 cm hole
c) If the battery has a measured cell temperature of 25°C
d) If smoke is emitted from the battery housing
e) If the battery was marked with a black colored dot on the top of the housing
a) As soon as there is an acute hazard from the battery (e.g. electrolyte leakage)
b) If the battery housing has a 2 cm hole
d) If smoke is emitted from the battery housing
200
Hvad hedder de 4 hovedpunkter i førstehjælp?
Stands ulykken, giv livreddende førstehjælp, alarmer ambulance på 112, giv førstehjælp mens du venter på ambulancen
300
What are the external identifying features of eActros and eEconic?
a) DC charging device on the left side
b) The MirrorCams installed as standard
c) Orange HV cables in the frame
d) The eActros or eEconic logo
e) New radiator grille
a) DC charging device on the left side
c) Orange HV cables in the frame
d) The eActros or eEconic logo
300
What must be observed when manually checking for absence of voltage and which measure-ments must be carried out?
a) Put on personal protective equipment, if necessary.
b) A measurement report need not be kept
c) HV+ to HV- d) HV+ and HV- to vehicle ground
e) The measuring points for determining the absence of HV voltage are specified in the re-spective measurement report for the HV vehicle concerned
a) Put on personal protective equipment, if necessary.
c) HV+ to HV-
d) HV+ and HV- to vehicle ground
e) The measuring points for determining the absence of HV voltage are specified in the re-spective measurement report for the HV vehicle concerned
300
Which statements about a high-voltage battery are correct?
a) A high-voltage battery may generally be stored anywhere.
b) A high-voltage battery consists of several battery modules that contain several battery cells.
c) As soon as the condition of a battery cannot be precisely defined, it must be taken to an observation site outside the workshop, provided that it does not pose an no acute hazard.
d) The SoC (state of charge) of a high-voltage battery is specified as a percentage.
e) A high-voltage battery may be shipped in a cardboard box without any special marking (e.g. by a forwarding agent).
b) A high-voltage battery consists of several battery modules that contain several battery cells. c) As soon as the condition of a battery cannot be precisely defined, it must be taken to an observation site outside the workshop, provided that it does not pose an no acute hazard.
d) The SoC (state of charge) of a high-voltage battery is specified as a percentage.
300
When can a vehicle be manually deactivated?
a) If XENTRY diagnosis is currently being used by a colleague and you do not have time to wait until the colleague finishes their work
b) If the employee does not know how to de-energize a vehicle with XENTRY diagnosis
c) If the employee is aware of high-voltage issues
d) If communication with the BMS is not possible and the diagnosis-based activation can therefore not be carried out
e) If XENTRY diagnosis has not installed the current release and activation using XENTRY is therefore not secure enough
d) If communication with the BMS is not possible and the diagnosis-based activation can therefore not be carried out
300
Hvad laver 30c systemet på en eActros?
I tilfælde af uheld eller aktivering af nødstop
vil den afbryde alle højvoltskomponenter i samarbejde med BMS og aflade DC/AC+bracking chopper+ladestik og HV batterier.
400
What is the function of the DC charging unit?
a) Charging the 24 V on-board electrical system
b) Conversion of alternating voltage into direct voltage for charging the HV batteries
c) Communication between vehicle (BMS) and charging station
d) LED display of state of charge
e) Distribution of electrical energy to the batteries depending on the state of charge (balanc-ing)
c) Communication between vehicle (BMS) and charging station
d) LED display of state of charge
400
From which voltage levels are voltages referred to as high voltages in motor vehicles?
a) 15 V DC and 30 V AC
b) 60 V AC and 30 V DC
c) 50 V AC and 48 V DC
d) 120 V DC and 60 V AC
e) 60 V DC and 30 V AC
e) 60 V DC and 30 V AC
400
The optimum operating temperature of a lithium-ion cell is 25°C. What temperature must a lithium-ion cell not exceed for safety reasons?
a) 50°C
b) 60°C
c) 75°C
d) 30°C
e) 100°C
b) 60°C
400
What types of lithium-ion cells are used in motor vehicles?
a) Hard case cells
b) Pouch cells
c) Triangle cells
d) Round cells
e) Circular cells
a) Hard case cells
b) Pouch cells
d) Round cells
400
Hvad hedder de forskellige vandkredse på en eEconic
Temperatur styring til:
Kabine
Batterier
Drivline
500
How must eTrucks be marked or secured in the workshop?
a) De-energized vehicles are marked with a green “HV vehicle de-energized” sign
b) De-energized vehicles do not need to be marked as they pose no danger to you
c) Vehicles that have not been de-energized must be parked in the workshop with the hazard warning light system switched on
d) De-energized vehicles must be secured against being switched on again by a padlock on the HV main switch
e) Vehicles that have not been de-energized are marked with a yellow “HV vehicle Dangerous voltage” sign
a) De-energized vehicles are marked with a green “HV vehicle de-energized” sign
d) De-energized vehicles must be secured against being switched on again by a padlock on the HV main switch
e) Vehicles that have not been de-energized are marked with a yellow “HV vehicle Dangerous voltage” sign
500
Hvad er dette?
1. Isolate from power supply
2. Secure against switching back on
3. Check absence of voltage
4. Ground and short-circuit
5. Cover or place barrier around adjacent live parts
the 5 safety rules
500
Which statements about the eActros/eEconic are correct?
a) The e-axle in the eActros/eEconic has an integrated 6-speed transmission.
b) The "chiller" can further cool down the cooling circuit of the batteries, for example, at very high outside temperatures.
c) The waste heat from the braking resistors is used to heat the cab.
d) The air compressor has its own oil circuit with filter.
e) In order not to strain the vehicle’s battery unnecessarily, the stationary heater is designed as a diesel heating system with its own diesel tank.
b). The "chiller" can further cool down the cooling circuit of the batteries, for example, at very high outside temperatures.
d) The air compressor has its own oil circuit with filter.
500
Choose from the following examples to describe how a lithium-ion battery responds depending on the operating temperatures:
a) Lithium-ion batteries are not affected by the operating temperature.
b) The cells of a lithium-ion battery must not exceed a temperature of 60°C
c) A lithium-ion battery has an optimum operating temperature at approx. 25°C.
d) A lithium-ion battery has an optimum operating temperature at approx. 85°C.
e) A temperature below -30°C can permanently damage a lithium-ion battery.
b) The cells of a lithium-ion battery must not exceed a temperature of 60°C
c) A lithium-ion battery has an optimum operating temperature at approx. 25°C.
e) A temperature below -30°C can permanently damage a lithium-ion battery.
500
I skal finde et spørgsmål om eActros, og stille det til den anden gruppe.
værdi 500
så flot