WorksheetsUnit 601 EV & Hybrid Safety - Mock (JC)
Total questions: 44
Worksheet time: 22mins
Name
Class
Date
1.
What type of vehicle uses a 48v electric motor to assist the Internal Combustion Engine?
a)
Mild Hyrbid
b)
Pure Electric
c)
Range Extender
d)
Plugin Hybrid
2.
What type of vehicle only emits water from the exhaust?
a)
Plug-in Hybrid
b)
Mild Hybrid
c)
Battery electric
d)
Fuel Cell
3.
What component in the Electric Motor spins?
a)
Stator
b)
Rotor
c)
Armature
d)
Windings
4.
What component generates electricity from a reaction between hydrogen and oxygen?
a)
Electric Motor
b)
Battery
c)
Hybrid Battery Controller
d)
Fuel Cell
5.
If someone has suffered an electric shock, what should you do first?
a)
Pull them away from the source
b)
Power down the electrical system
c)
Prevent vehicle movement
d)
Use the chemical burn kit
6.
What hazard is associated with Nickel Metal Hydride batteries?
a)
They can excplode
b)
An exothermic reaction
c)
Chemical leakage
d)
Magnetic Fields
7.
Which is most likely to cause nerve damage?
a)
Electric Shock
b)
Thermal Shock
c)
Impact Shock
d)
Pain Shock
8.
In most common ICE cars, the 12v battery is charged with the Alternator. In an EV, what component charges the 12v battery?
a)
DC to AC Inverter
b)
Air Conditioning Motor
c)
Electric Motor
d)
DC to DC converter
9.
Which vehicle uses a Internal Combustion Engine to supply electrical power only for short intervals?
a)
Pure EV
b)
Mild Hybrid
c)
Range Extender
d)
Fuel Cell
10.
What component supplies power to the ignition and vehicles 12v ancillary systems (radio, windows, wipers etc) when the vehicle is switched off?
a)
The High Voltage battery
b)
The Low Voltage battery
c)
The DC to DC Converter
d)
The Inverter
11.
What must be done first before starting any work under the bonnet of a Hybrid vehicle
a)
Test the radio works
b)
Isolate the High Voltage battery
c)
Check the Remote Locking works
d)
Move the vehicle outside in case of fire
12.
To avoid Electric Shock, what must be done beforehand?
a)
Check the fuse rating
b)
Check the power is turned on
c)
Check the cables insulation for damage
d)
Check the voltage is correct
13.
Which is more likely to cause a trip hazard when charging an EV in the workshop?
a)
Leaving the key in the break room
b)
Dropping the job card
c)
Charging cable on the workshop floor
d)
James having a curry the night before
14.
How can you tell an Electric Vehicle from an vehicle with a traditional internal combustion engine?
a)
It has a sticker on the front windscreen
b)
It does not have an exhaust
c)
The owners handbook will tell
d)
It has a charging port/flap
15.
A Hybrid vehicle has an engine and an electric drive traction motor. How can these be connected?
a)
Series Only
b)
Parallel Only
c)
All above answers
16.
A PHEV hybrid vehicle needs to have a petrol flap and an exterior charging port flap. Why does a self charging hybrid not have a charging port flap?
a)
Because it was an optional extra
b)
By running the engine and using the motor generator to charge the battery
c)
They use inductive wireless charging at traffic lights
d)
They use a backup battery to charge the primary battery
17.
Why should you never work on a High Voltage system or connect a charging cable if the cables are wet?
a)
Because you will have wet hands
b)
The H20 will deteriorate the terminals
c)
The High Voltage can track down the water
18.
The traction electric motor has two basic components: (select two from below)
a)
A 3 phase stator winding (generator)
b)
One spinning rotor (Drive)
c)
Road Speed Monitor
d)
Battery Charging Supervisor
19.
The charger which can use either a fast charge DC and charger and AC 7Kw is called a...
a)
Combined type 1
b)
Combined type 2
c)
Combined type 3
d)
European type
20.
Hybrid and electric vehicles use High Voltage to power the air con compressor.
What should you do first when working around the Air Con compressor?
a)
Open all windows to vent the interior
b)
Isolate the High Voltage system first
c)
Display warning signs to other technicians
d)
Remove all refridgerant
21.
The green EV ready lamp indicates...
a)
that an electric or hybrid vehicle is switched on and ready to run
b)
that the car is turned on, but not able to drive
c)
the EV system needs charging
d)
that a fault has developed and is ready to be diagnosed
22.
What dangers are associated with the high power permanent magnets used in 3 Phase Motors?
a)
there are no direct dangers with high power magnets
b)
the motor can cause danger to people with pacemaker and insulin pumps
c)
it can attract sockets, spanners and ratchets preventing you working
23.
Hydrogen vehicles use a fuel cell and store hydrogen in a high pressure tank. How does this generate electricity?
a)
The Hydrogen reacts with the aluminium in the tank creating electricity
b)
The Oxygen reacts with the hydrogen creating electricity
c)
Hydrogen mixes with oxygen in the fuel cell to create electricity
d)
Aluminium oxide reacts with hydrogen peroxide to create electricity
24.
What is the minimum high voltage classed as to be dangerous?
a)
50
b)
60v
c)
70v
d)
80v
25.
If a vehicle's service history provides detailed information regarding repairs. What is a job cards purpose?
a)
The job cards allow work to be carried out and record details
b)
The job cards tells you the mileage history
c)
The job card is only used to quote the customer
d)
The job card is only used by the Master Technician
26.
Why should you remember to remove metal tools from overalls and they ensure they are made from rubber/plastic buttons?
a)
To ensure your washing machine isnt damaged
b)
To prevent tools leaving the work bay
c)
To prevent electrocution injuries from their conductivity
d)
To prevent the technician damaging their toolboxes paintwork
27.
What High Voltage component remains fully charged for upto 15 minutes; even when both the 12v and High Voltage batteries have been disconnected?
a)
3 phase motor
b)
wheel speed sensor
c)
Motor Generator Unit
d)
Invertor Capacitors
28.
What colours is used to highlight High Voltage components as a visual warning?
a)
Orange
b)
Yellow
c)
Blue
d)
Red
29.
If the the drive traction motor is AC and the HV battery which supplies the motor is DC, what is the component used to change the DC to AC?
a)
MGU
b)
Capacitor
c)
Invertor
d)
Generator
30.
The hybrid engine uses the Motor Generator to start the ICE engine, therefore cranking cannot be heard, a silent start is noticed. What is this this system commonly called?
a)
Start/Stop
b)
Stop/Start
c)
Go/Stop
d)
Start/Pause
31.
When the vehicle is powered down, what happens to the vehicles High Voltage system?
a)
It is still present and but safe to work with
b)
The vehicle goes into sleep mode but power can still be live in all HV systems
c)
The vehicle is always ready to drive
d)
The vehicle only has high voltage when plugged in for charging
32.
In hybrid and electric vehicles a 12 volt battery is used to power ancillaries (radio etc) and this is then charged by the Motor Generator and the DC /DC convertor.
What other key role is the 12v battery used for?
a)
To switch on the High Voltage systems
b)
To operate the MGU
c)
To cool the High Voltage Battery pack
d)
To charge the High Voltage battery
33.
In all electric cars, the High Voltage battery supplies a DC voltage . This needs to be changed to a low DC voltage. How is this done?
a)
AC to AC conversion
b)
DC to AC Conversion
c)
DC to DC conversion
d)
AC to DC conversion
34.
When working on or around High Voltage vehicles, what must you display before you start any work?
a)
A hard hat must be worn
b)
High visibility yellow signs need to be placed around the vehicle
c)
Steel toe capped boots must be used around the High Voltage vehicle
d)
The ignition key must be at least 10 meters from the vehicle
35.
When servicing a Hybrid Vehicle, what should you do with the vehicles ignition key before starting any repair work?
a)
The ignition key must be stored a minimum of 10 meters from the work bay (ideally in a locked box)
b)
The Drivers door must be closed to prevent any panel and paint damage
c)
The work bay must be painted yellow and kept clear
d)
The ignition key must remain in the vehicles work bay to prevent the ECU losing the immobiliser code
36.
What is the purpose of the below item?
a)
To pull a person away from a HV source
b)
To pull the battery away from a HV vehicle
c)
To disconnect a HV battery
d)
To move warning cones around the work bay
37.
Whenever a high voltage cable is disconnected and it is live, an arc flash can be created which is a danger to life and must be avoided. How should you prevent this?
a)
Use an insulated tool with safety googles to remove the cable
b)
Switch on the vehicle and continue with removing the cable
c)
Power down the system and isolate the High Voltage first
d)
Wear a welding mask and disconnect the cable
38.
What category of electrical insulation must be used when working with High Voltage vehicles?
a)
Cat 1
b)
Cat 2
c)
Cat 3
d)
Cat 4
39.
What class should these gloves be rate to?
a)
Class 0
b)
Class 1
c)
Class 2
d)
Class 3
40.
What is the role of the DC - DC Converter?
a)
Converts Low DC voltage to High DC voltage
b)
Converts High DC Voltage to Low DC Voltage
c)
Inverts AC to DC
d)
Inverts DC to AC
41.
What is the role of the Inverter?
a)
To adapt low current to medium current
b)
To Invert DC to AC
c)
To Invert AC t oDC
d)
To correct the motors phase synchronicity
42.
What type of electric drive motor is commonly used with a Hybrid or Electric Vehicle?
a)
3 Phase Brushless Permanent Magnet Motor
b)
1 Phase Brushless Permanent Magnet Motor
c)
Inductive 3 Phase Motor
d)
Inductive 1 Phase Motor
43.
What two types of battery are commonly used in Hybrid & Electric Vehicles?
a)
Nickel Metal Hydride
b)
Lithium Ion
c)
Lead Acid
d)
Absorbent Glass Matt
44.
What is used to cool the Inverter, Motor and battery pack on an Electric Vehicle?
a)
Air Cooling
b)
Liquid Nitrogen Coolant
c)
Antifreeze/Distilled Water Coolant
d)
Forced Methanol Cooling
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