Hybrid and Electric L 2/3

In the event of a HV battery acid spill onto a person’s skin what action should be taken? 

• Use powdered boric acid dissolve in water 

• Soak the person in cold water 

• Seek medical attention  

Answer explanation

Actually the gel in most batteries is Alkaline and we must neutralise it by using an Acid to stop the burning

When working on a HV vehicle, what is the first practical item you should do? 

• Test and fit all PPE 

• Control the working area with the correct safety signs 

• Remove the keys from the vehicle and place over two meters away from the vehicle 

Answer explanation

Put you red and Yellow signs out to make sure everyone knows the vehicle being worked on could be a hazard

What is the third step when preparing a vehicle for safe working? 

• Switch of the engine 

• PPE 

• Disconnect the negative low voltage 12volt battery lead 

Thermal runaway is also called thermal explosion, this process is also known as? 

• Hydro thermic reaction 

• Exothermic reaction 

• Electrical reaction 

Which is the most important battery in a hybrid vehicle? 

• The HV battery pack 

• The LV battery  

• he key fob battery

Answer explanation

The Low Voltage battery is the most important battery on the vehicle as it controls the ability for the vehicle to be activated

these batteries have been connected together in.....

• Parallel 

• Series 

• A combination of parallel and series 

Answer explanation

Batteries connected in Parallel look like this

What type of magnets are used in motor/generators, that are 18 times stronger that normal magnets? 

• Bi-polar magnets 

• Neodymium magnets 

• Exothermic magnets 

In the case of a person being electrocuted, and you cannot turn off the power supply, what type of equipment should be used to help out with this situation?  

• A none conductive item  

• A conductive item  

• Due to the high voltage DO NOT attempt any procedure 

What is the most common type of HV charging plug used in Europe? 

• 
• 
• 

Answer explanation

Type 2 is rapidly being accepted as the standardised plug in Europe

When regenerative braking is taking place in an EV, what type of voltage is created by the generator? 

• AC power

• DC voltage

• Both AC and DC power