×

Quiz Session - Attempts With Random Questions

ASE xEV (Level 1) Exam Questions

Page 9 of 10

161.

What does the pedestrian warning system alert look like?

  • A person standing on a road

  • A person waving

  • Two people standing on a road

  • Two people waving

Correct answer: A person standing on a road

EVs are quiet vehicles, so pedestrians may not hear the car coming. That's why the vehicles are equipped with pedestrian warning systems to prevent accidents. This system alert shows up as a person standing on a road.

In many vehicles, automatic braking kicks in when the driver doesn't take action fast enough. 

162.

What is the first step to getting help for a person subjected to a high-voltage shock?

  • Call 911 for emergency services

  • Cut off power to the source

  • Separate the person from the voltage supply with a non-conducting object

  • Attempt CPR

Correct answer: Call 911 for emergency services

While some of the other steps may be valid, your first step should always be to contact 911 and get help coming. It's also important that you don't touch the person being shocked.

After 911 is called, you can follow any directions they give about cutting off power from the source, separating the person, or attempting CPR.

163.

What does the power electronics controller regulate?

  • Speed of the electric traction motor and its torque

  • Delivers power to the wheels

  • Converts high-voltage DC to lower voltage power for the accessories and auxiliary battery

  • Regulates the operating temperature of the engine

Correct answer: Speed of the electric traction motor and its torque

The power electronics controller is a high-voltage part that regulates the speed of the motor and the torque it produces. It does this by managing the electrical current coming from the traction battery. 

It's the job of the electric transmission to deliver the power to the wheels. The DC/DC converter handles the conversion of high-voltage DC power to lower voltage, while the thermal cooling system handles motor temperature regulation. 

164.

In what circumstances should you not attempt to fight a small fire?

  • If the high-voltage battery is the source of the fire

  • When it's controllable

  • It's not spreading to other areas

  • If you can fight it while standing at the nearest exit, ready to leave

Correct answer: If the high-voltage battery is the source of the fire

If you believe the high-voltage battery started the fire, everyone in the shop must leave the building and area immediately. An explosion could occur, leading to fatalities.

Otherwise, if the fire is controllable and not spreading, you may attempt to fight it. Make sure someone has already called 911 and that you can escape the area through an open exit if you need to. Always follow the shop's Emergency Action Plan (EAP) Standard Operating Procedure (SOP) that aligns with the NFPA 70E (National Fire Protection Association), OSHA (Occupational Safety and Health Administration), and regional/local laws. 

165.

What is the term used to describe an uncontrollable self-heating of the EV battery that begins with heat generated within and exceeds what can be safely dissipated in ambient surroundings?

  • Thermal runaway

  • Explosive connectivity

  • Hot battery

  • Short circuiting

Correct answer: Thermal runaway

The NFPA (National Fire Protection Association) defines this condition as thermal runaway. This condition occurs after an accident or mechanical malfunction.

When thermal runaway is a threat, only emergency responders or qualified technicians should work on the vehicle. 

166.

What two organizations provide the basic elements for a written electrical safety program?

  • NFPA (National Fire Protection Association) and OSHA (Occupational Safety and Health Administration) 

  • NFPA (National Fire Protection Association) and ASE (National Institute for Automotive Service Excellence)

  • ASE (National Institute for Automotive Service Excellence) and OSHA (Occupational Safety and Health Administration) 

  • OSHA (Occupational Safety and Health Administration) and local laws

Correct answer: NFPA (National Fire Protection Association) and OSHA (Occupational Safety and Health Administration) 

The NFPA 70E and OSHA 1910, Subpart S 331-335 provide the basic elements for a written electrical safety program. These guidelines should be referenced in all training programs for employees working on EVs. 

All of these guidelines should correspond with direction from the employer and local laws. They are required knowledge for ASE testing. 

167.

What does the RBS symbol mean?

  • Regenerative braking system

  • Regenerative brake warning 

  • Rearview mirror system malfunction

  • Rear bumper sensor malfunction

Correct answer: Regenerative braking system

The RBS (Regenerative Breaking System) symbol indicates that the regenerative braking system is active. It's a normal symbol to see when everything is running correctly. 

When there's a warning with the regenerative braking system, there is an exclamation point in a circle. It may also show up with a red brake warning light at the same time. 

168.

What must an electrically aware person be prepared to do?

  • Recognized the risks associated with EVs

  • Maintain high-voltage EV systems

  • Repair high-voltage EV systems

  • Repair EV batteries

Correct answer: Recognize the risks associated with EVs

The electrically aware person needs to know the risks associated with being around EVs. While this person isn't working on high-voltage systems, they must know how to be around them.

It's important for the electrically aware person to have knowledge about the high-voltage parts. They should be able to quickly identify potential hazards. 

169.

EVs use redundant systems to prevent what type of issues from occurring?

  • Shock and fire hazards

  • Loss of power

  • Brake failure

  • Steering loss

Correct answer: Shock and fire hazards

Today's EVs are equipped with redundant systems that help prevent shock and fire hazards from occurring. Automakers install these systems to protect occupants, technicians, and first responders.

However, these systems are not fool-proof. There can still be glitches or accidents that lead to shock or a fire. 

170.

Individuals should be warned about potential electrical hazards with a combination of safety signs, tape, magnetic car toppers, tags, and:

  • Cones

  • Flags

  • Flashing lights

  • Rope

Correct answer: Cones

To identify potential electrical hazards from energized and non-energized vehicles with an electric powertrain, it's recommended to use a combination of safety signs, tape, magnetic car toppers, tags, and cones.

In certain situations, barricades may also be necessary. All signs and tags must meet all state, federal, and local code laws.

171.

What is the warning symbol that includes a wrench?

  • General issue

  • Overheating battery

  • Maintenance required

  • Low battery

Correct answer: General issue

The wrench warning light indicates a general issue. It's a broad warning that is used by automakers to get the drivers' attention. Some issues may include traction system, sensor, or charging system failures.

This warning light could come on with others, helping to understand what's wrong. For example, it may illuminate at the same time as an overheating or electrical issue warning light. 

172.

What technician is qualified to repair and maintain non-high-voltage systems on an EV?

  • All three

  • Level 1

  • Level 2

  • Level 3

Correct answer: All three 

The Level 1 technician can work on the EV, with the non-high-voltage systems. They are also qualified to handle the non-high-voltage components of the vehicle.

Level 2 and Level 3 technicians are trained to work with the high-voltage systems. These should not be touched by the Level 1 technician. 

173.

What life-saving procedure can increase the chance of survival after cardiac arrest by double or triple?

  • CPR

  • Heimlich maneuver

  • EKG

  • EEG

Correct answer: CPR

CPR stands for Cardiopulmonary Resuscitation. This life-saving procedure can increase the victim's chance of survival following a cardiac arrest by double or triple. 

The chances are higher when CPR is started immediately following the cardiac arrest. By keeping the blood flow active, you increase the chance of survival when emergency responders arrive. 

174.

If a person is enduring a shock from an electrified vehicle, you need to de-energize the high-voltage system. How is this done?

  • Disconnect the system through the manual service disconnect (MSD)

  • Shut down power from the line at the service disconnect

  • Turn off the light switch

  • Turn on the ignition and start the vehicle

Correct answer: Disconnect the system through the manual service disconnect (MSD)

The manual service disconnect (MSD) is a low-voltage lever that removes power from the contact control circuits. It's installed in some EVs with an orange removable connector.

Shutting down power at the line, turning off the light switch, and starting the vehicle are not going to de-energize the system.

175.

What is another term for the Level 1 technician?

  • Electrically aware person

  • EV technician

  • Electric vehicle mechanic

  • Electrically conscious person

Correct answer: Electrically aware person

The term electrically aware person is awarded to individuals encountering EVs in the workplace. These people should be a Level 1 technician, which allows working around the high-voltage systems, but not on them.

To work on these high-voltage systems, you need to be a Level 2 or 3 technician.

176.

Because lithium-ion batteries are so difficult to extinguish when they are on fire, how do emergency personnel deal with the situation?

  • Flood the battery compartment with water

  • Run the other way

  • Use a special EV fire extinguisher

  • Allow for a controlled burn with the perimeter secured

Correct answer: Flood the battery compartment with water

Emergency personnel are instructed to flood the battery compartment with water to neutralize the threat. Because extinguishing isn't a viable option, they need to do whatever is necessary to get the fire out and stop the presence of flammable gases.

During an EV fire, everyone else should remain far away from the vehicle as a safety precaution. 

177.

What instructions should be followed when securing an electric vehicle?

  • Original Equipment Manufacturer's (OEM)

  • Expert technicians

  • Your employer

  • OSHA

Correct answer: Original Equipment Manufacturer's (OEM)

The Original Equipment Manufacturer's (OEM) provides the instructions for securing an electric vehicle. These instructions may include putting the vehicle in park, chocking the wheels, applying the parking brake, and how to de-energize the system.

The guidelines given by expert technicians in your field and your employer should always follow the OEM recommendations. They should also line up with OSHA rules. 

178.

When may a disconnect be unavailable to stop the flow of electrical current?

  • The source is the high-voltage battery

  • Power is coming from the line

  • The EV has a low-voltage service disconnect lever

  • The EV is turned off

Correct answer: The source is the high-voltage battery

If the electrical flow is coming directly from the high-voltage battery, there may not be an available disconnect.

When power comes from the line, a service disconnect can be used. Turning off the EV and using the low-voltage service disconnect lever can both help turn off the power coming from the vehicle.

179.

How should the victim lie during CPR?

  • Flat on their back

  • Standing up

  • On their left side

  • On their right side

Correct answer: Flat on their back

You must place the victim flat on their back to successfully perform CPR. If they aren't flat on their back, carefully move them into this position with the help of others around you.

Before performing CPR, make sure someone has called 911. CPR is only meant to keep the blood flowing until emergency personnel can arrive. 

180.

Tags for the tagout procedure need to be prepared for all of these environments, except:

  • Uncontrolled environments

  • Wet conditions

  • Damp, humid climate

  • Corrosive environments

Correct answer: Uncontrolled environments

Tagouts can't be used in uncontrolled environments. In these cases, lockout is required instead.

When using the tagout procedure, tags must be able to withstand wet, humid conditions. They must also be resistant to corrosion, because there could be acids and chemicals used in the area. 

×