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Quiz Session - Attempts With Random Questions

ASE xEV (Level 1) Exam Questions

Page 3 of 10

41.

Why are high-voltage cables orange?

  • To warn of danger

  • It is different

  • To match the car

  • To look better

Correct answer: To warn of danger

The Original Equipment Manufacturer (OEM) is required to make EV high-voltage cables orange-colored. This orange color helps technicians and owners know that the cables contain high-voltage and are dangerous.

If the high-voltage cables are behind electrical protection barriers, they are not required to be orange. 

42.

When is it dangerous to work with high-voltage vehicle equipment?

  • When the proper safety precautions are not followed

  • If the car isn't running

  • When the battery isn't fully charged

  • After it has been driven

Correct answer: When the proper safety precautions are not followed

To remain safe, it's important to follow all safety precautions determined by the ASE. Otherwise, there's a risk of personal injury and property damage from electrical shock.

Having the car not running, or the battery depleted doesn't change the dangers involved. There's also no difference if the car has been sitting or running when it comes to working with the electrical system.

43.

Technicians are responsible for understanding all of the guidelines to identify and follow labeling on the vehicle, as determined by who?

  • Original Equipment Manufacturer (OEM)

  • Fire department

  • OSHA

  • Police department

Correct answer: Original Equipment Manufacturer (OEM)

All OEM guidelines for identifying the electric vehicle must be followed by the technician. These guidelines also dictate the labeling of the vehicle and system.

While the fire department and OSHA are authorities when dealing with electric vehicles, these organizations don't apply labeling to the EVs. 

44.

Technician A believes it is the responsibility of a Level 1 technician to secure a work area when an electrified propulsion vehicle enters. Technician B believes it is the responsibility of a Level 2 technician.

Who is correct?

  • Technician B 

  • Technician A

  • Both are correct

  • Neither are correct

Correct answer: Technician B

It is the responsibility of the Level 2 and/or the Level 3 technician to secure a work area when an EV enters. Physical barriers, signs, barricades, and an attendant may be required to reduce foot and vehicle traffic in the area.

It is still good practice for Level 1 technicians to help secure an area when possible, within the guidelines outlined by ASE.

45.

If lithium-ion batteries are on fire, what is the primary goal of emergency personnel?

  • Cool the battery

  • Check power sources

  • Care for injured people

  • Set up a perimeter around the scene

Correct answer: Cool the battery

Emergency personnel must cool the battery as quickly as possible. This is done by flooding the battery compartment with water.

By ensuring the battery gets cooled off, the risk of fire decreases. Emergency personnel will perform other tasks, such as caring for injured people, but the primary goal is to remove any threat of fire. 

46.

Why does the Level 1 person need high-voltage electrical safety awareness?

  • To identify potential hazards and reduce risks 

  • To identify an electric car

  • To sell more cars to customers

  • To diagnose electrical faults within the systems

Correct answer: To identify potential hazards and reduce risks

The Level 1 individual must be ready to identify any potential hazards and reduce associated risks when working around EVs.

They don't need the training to identify the EV or diagnose advanced electrical system faults. This training isn't beneficial for selling EVs either.

47.

Who is qualified to open and work on labeled electrical components, according to the OEM instructions?

  • A Level 2 or Level 3 technician

  • Only a Level 2 technician

  • Only a Level 3 technician

  • Only a Level 1 technician

Correct answer: A Level 2 or Level 3 technician

Only the Level 2 and Level 3 technicians have the training required to work on these high-voltage parts.

As a Level 1 technician, you should not touch or come close to any labeled components. Instead, you can support the other technicians by ensuring all of the appropriate safety measures are in place so injury is prevented.

48.

What do traction and auxiliary batteries have in common?

  • Power is stored in cells

  • Power transfers to the wheels

  • Power transfers to the electronic accessories

  • Charge is given to both when the EV is plugged in

Correct answer: Power is stored in cells

The only similarity between the two is how power is stored. Various cells make up the battery, where the voltage can be stored for later usage.

The traction battery is responsible for sending power to the transmission, so it can turn the wheels. It also supplies a charge to the auxiliary battery, while the traction battery receives a charge from being plugged in. The auxiliary battery transfers power to the electronic accessories. 

49.

Popping and sizzling noises, along with leaking or dripping fluids can all indicate what condition?

  • Shorting condition

  • Dead battery

  • Fully-charged battery

  • Trouble with the electric motor

Correct answer: Shorting condition

Popping and sizzling noises, along with leaking or dripping fluids are symptoms of a shorting condition. You may also smell chemicals, notice smoke or see sparks coming from the battery. Emergency responders should be notified to deal with the situation. 

50.

Which one of the following aspects does the Battery Management System (BMS) not monitor?

  • Usage of interior electronics

  • Battery state-of-health

  • Cell voltages

  • Battery temperature

Correct answer: Usage of interior electronics

The Battery Management System (BMS) has nothing to do with the interior features of the vehicle. Instead, it's responsible for monitoring the battery's state-of-health.

It also measures the cell voltages and temperature. The BMS reports the information back to the computer, so charging and discharging of the batteries occurs as intended. 

51.

What is the purpose of OSHA?

  • Ensure a safe working environment

  • Monitor electric vehicle usage

  • Regulate the number of automotive technicians

  • Determine appropriate billing practices

Correct answer: Ensure a safe working environment

The Occupational Safety and Health Administration (OSHA) was created in 1970 by Congress to ensure a safe working environment across the nation. OSHA sets and enforces certain standards for employers.

The government agency provides training, outreach, and education. OSHA also sets enforcement policies and inspects facilities regularly to deal with potential violations or complaints. 

52.

Which of these concerns isn't a risk associated with working on electric vehicles?

  • Flooding

  • Fire

  • Electrical shock

  • Arc flash

Correct answer: Flooding

When working around or on EVs, there's no risk of flooding. Yet, fire is a serious concern, especially if the vehicle has been in an accident and the high-voltage battery has been damaged.

There's also a threat of electrical shock or arc flash. That's why having solid guidelines in place helps to reduce risk. 

53.

The ASE Electrified Propulsion Vehicles (xEV) High-Voltage Electrical Safety Standards is for service professionals in North America working on or around electrified propulsion vehicles (xEVs) with which of the following voltages?

  • >30 V AC rms and >60 V DC2

  • >20 V AC rms and >50V DC2

  • >40 V AC rms and >70V DC2

  • >50 V AC rms and >100V DC2

Correct answer: >30 V AC rms and >60 V DC2

The ASE Electrified Propulsion Vehicles (xEV) High-Voltage Electrical Safety Standards guide and establish the safety requirements for all alternating voltages greater than 30 V AC and direct voltages greater than 60V DC2.

54.

How long after a fire has been extinguished can the batteries reignite?

  • Several weeks

  • 12 hours

  • 24 hours

  • Several days

Correct answer: Several weeks

Lithium-ion batteries can ignite or reignite up to weeks after they've been extinguished. That's why it's important to let emergency responders handle any fire that occurs.

Lithium-ion batteries are also known to ignite or reignite for several weeks after they've been damaged. For this reason, the batteries should be inspected after any accident or impact occurs. 

55.

What is another name for the electric motor in an EV?

  • Motor-generator

  • Internal combustion engine

  • Rotary engine

  • Diesel engine

Correct answer: Motor-generator

Another term for the electric motor is the motor-generator. While it functions as a motor to propel the EV, it also serves as a generator to convert energy.

One means of converting energy through the electric motor is through regenerative braking. Mechanical braking energy is changed into electrical energy that can be used. 

56.

Which of the following skills must the Level 1 technician possess?

  • High-voltage electrical safety awareness

  • Isolating voltage from the EV system and checking it

  • Ways to maintain an EV motor

  • Separating individual battery modules

Correct answer: High-voltage electrical safety awareness

Level 1 technicians work around EVs, so they must have high-voltage electrical safety awareness skills. They are qualified to work around high-voltage systems, but not with them.

It is the job of Level 2 and Level 3 technicians to work on the high-voltage systems of the EV and maintain it. 

57.

Why should you avoid grabbing a person that's being electrocuted?

  • You could become part of the circuit

  • It's best to give people personal space

  • Pushing is a better option

  • It's against policies on physical contact at your workplace

Correct answer: You could become part of the circuit

Your body is an excellent conductor for electricity. If you touch or grab someone that has electricity running through them, you could also become a conductor and get shocked.

Instead of grabbing the person, you want to find the source of the power and shut it down. If there are no other options and you must remove the person from the source, an insulated retrieval hook (hot stick) should always be used. 

58.

Why are warning labels placed on electric vehicles?

  • To indicate potential danger caused by an electrical current

  • To help users discern what features the car has

  • Indicating the make and model of the vehicle for resale purposes

  • Showing users where to take the vehicle for repair

Correct answer: To indicate potential danger caused by an electrical current

OEM (Original Equipment Manufacturer) labels are placed on the EV and high-voltage parts to warn others of the potential danger from electrical currents. These labels should be followed to prevent injury. 

Other labels and documentation about the vehicle can indicate its make and model, along with the trim level.  

59.

What does AED stand for?

  • Automated External Defibrillator

  • Automatic Emergency Detector

  • Auto Extremity Device

  • Aiding External Devices

Correct answer: Automated External Defibrillator

AED stands for Automated External Defibrillator. With an AED, the chance of survival is much higher when dealing with cardiac arrest.

AEDs may be in the automotive repair shop for emergency use. It's best to be trained to use an AED through the company with the policies that should be in place. 

60.

If a component is capable of being locked out but the employer chooses to use tagout instead, where should the component be located?

  • At the same location where lockout would have been 

  • By the technician's work area

  • Outside of the technician's work area

  • With the employer

Correct answer: At the same location where lockout would have been

If tagout is used in place of lockout, the device must be in the same location that it would have been during lockout. The employer must also be able to prove that using tagout will provide the same level of safety protection that would be achieved through lockout.

In most commercial situations, lockout is the better option. It's required any time the environment is uncontrolled. 

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