×

Quiz Session - Attempts With Random Questions

ASE xEV (Level 1) Exam Questions

Page 7 of 10

121.

When should tagouts be used?

  • In controlled environments with an established group policy

  • All the time

  • Never

  • When specified by the service manager

Correct answer: In controlled environments with an established group policy

If you work in a controlled environment with an established group policy, you may be able to implement tagouts instead of lockouts. There must be a clear-cut procedure for tagouts and all employees must understand the policy.

If you work in an uncontrolled environment, a lockout is required instead. These procedures prevent electrical shock from occurring. 

122.

What element doesn't need to be included as part of the "written" electrical safety program?

  • Garage bay cleanliness

  • Job safety planning

  • Personal Protective Equipment (PPE) 

  • Training

Correct answer: Garage bay cleanliness

Garage bay cleanliness in the shop isn't part of the "written" electrical safety program. This protocol is decided by the shop manager and executives. 

What is important to the program is training, job safety planning, and risk assessment. Engineering (manufacturing procedures), an electrically safe work condition (<50 V), Personal Protective Equipment (PPE), and tools should all be included. 

123.

When getting help for someone subjected to high voltage, how do you best protect yourself?

  • Don't touch the person

  • Turn off the vehicle if it is running

  • Move the person away from the power source

  • Reach out to the person with an object to see if they have electrical current running through them

Correct answer: Don't touch the person

If someone is being subjected to a high-voltage shock, you should never touch them. Attempting to move the person from the power source or touch them with an object could result in you being shocked. Additionally, you shouldn't touch the vehicle to turn it off until first responders have accessed the situation.

124.

Thermal runaway occurs when the battery suffers from what uncontrollable condition?

  • Self-heating

  • Water intrusion

  • Excessive charge

  • Parasitic drain

Correct answer: Self-heating

When the battery suffers from uncontrollable self-heating, it's known as thermal runaway. This heat can't be adequately dissipated into the ambient surroundings.

Thermal runaway can generate an excessive amount of flammable and toxic gases. It's most common after an accident. 

125.

When should CPR be used?

  • Heart stops beating

  • After all electrical shock events

  • Never

  • Victim looks shocked and disoriented

Correct answer: Heart stops beating

CPR (Cardiopulmonary Resuscitation) is a life-saving procedure used when a victim's heart stops beating. By immediately providing CPR, you can increase the chances of survival by double or triple. 

It's important to keep the blood flow moving until first responders arrive on the scene. 

126.

What does CPR do?

  • Keeps the blood flow active

  • Helps victim breathe better

  • Provides a shock to the heart

  • Allows the body to relax

Correct answer: Keeps the blood flow active

CPR (Cardiopulmonary Resuscitation) is used to keep blood moving even when the heart is no longer beating. By providing even a partial amount of blood moving, the chance of resuscitation is higher for emergency personnel.

This life-saving procedure should be performed if the heart isn't beating on its own. Chances of survival increase by double or triple if immediate CPR is given. 

127.

What vehicles are required to have orange cables to identify high-voltage systems?

  • Any hybrid or electric car with a high-voltage battery

  • Gas-powered vehicles

  • Diesel-powered vehicles

  • All vehicles

Correct answer: Any hybrid or electric car with a high-voltage battery

According to Federal Motor Vehicle Safety Standards, all vehicles with a high-voltage battery should have orange cables to warn against danger. These include both hybrid and electric vehicles. 

Gas- and diesel-powered vehicles don't contain the same high-voltage systems. Therefore, orange cabling isn't required. 

128.

When performing CPR, what is the appropriate ratio of chest compressions and mouth-to-mouth breathing?

  • 30 compressions:2 breaths

  • 15 compressions:2 breaths

  • 10 compressions:2 breaths

  • 25 compressions:2 breaths

Correct answer: 30 compressions:2 breaths

During CPR, it's important to provide 30 compressions for every two breaths. Chest compressions occur at a rate of 100 to 120 per minute, at a depth reaching two inches (five centimeters). Chest compressions should never exceed 2.4 inches (six centimeters).

129.

What should be done when a tag cannot be affixed directly to the component during the tagout process?

  • The tag must be close to the device where it's immediately obvious

  • Someone should stand guard with the component

  • Lockout procedure must be used

  • Nothing needs to be done

Correct answer: The tag must be close to the device where it's immediately obvious

If the tag can't be affixed on the component, the tag must be placed as close to it as possible. The tag should be immediately obvious to anyone that attempts to operate the equipment.

There's no need for someone to stand guard or to use lockout procedures, unless the environment is uncontrolled. 

130.

How long should you continue providing chest compressions during CPR?

  • Until first responders arrive

  • Until your hands get tired

  • After two minutes

  • After five minutes

Correct answer: Until first responders arrive

If the victim remains unconscious and isn't breathing, continue giving chest compressions until help arrives. By providing consistent chest compressions, you increase the chances of the victim's survival.

If you have someone else call 911, the operator can tell you how long it will be until the help arrives. 

131.

How many speeds does an electric car transmission have?

  • One

  • Two

  • Four

  • It varies by manufacturer

Correct answer: One

The typical EV usually includes a single-speed electric transmission. Its job is to transfer the power from the electric motor to turn the wheels. Manufacturers can use a single-speed transmission in EVs because of how efficient the motor is in varying conditions. 

In the future, more EV manufacturers may switch to a multi-speed transmission. 

132.

How much contact should the Level 1 technician have with high-voltage components?

  • None, besides being around the EVs for other work-related tasks

  • May remove high-voltage parts for other technicians

  • May repair high-voltage systems

  • May maintain high-voltage systems

Correct answer: None, besides being around the EVs for other work-related tasks

The Level 1 technician is not trained to work on or handle high-voltage components. The training is solely to identify hazards and reduce risk.

The Level 1 technician may be around EVs and operate them. They may also repair or maintain the non-high-voltage systems of the EVs. 

133.

What is the name of the device that tags an energy-producing or conducting component for safety?

  • Tagout device

  • Tagged device

  • Tagged lock

  • Tagout locker

Correct answer: Tagout device

A tagout device is a tag, or other prominent warning device, that gets attached to an energy-isolating component. It's meant to indicate that the component is removed and shouldn't be used until the tagout device is taken off. 

Tagout devices should only be used when the environment is controlled. If the environment is uncontrolled, lockout is required instead. 

134.

What isn't a hazard of ESS (Energy Storage System)?

  • Renewable energy failure

  • Thermal runaway

  • Stranded energy

  • Toxic and flammable gases

Correct answer: Renewable energy failure

An ESS can help retain the energy created by renewable methods, such as solar or wind. The ESS is a benefit to renewable resources.

With an ESS, there are hazards to be concerned about, such as thermal runaway, stranded energy, as well as toxic and flammable gases. There's also a threat of deep-seated fires.

135.

After an EV accident, what may cause toxic and flammable gases from the battery that could reach a high enough level that they ignite?

  • Overheated damaged cell

  • Fuel leak

  • Short circuit

  • Regenerative brake failure

Correct answer: Overheated damaged cell

If the battery cells are damaged or punctured, thermal runaway becomes a threat. In this case, the cells may become overheated and leak flammable gases. Depending on the severity of the leak, a fire could start.

After any accident with an EV, it's best to have emergency personnel assess the situation. 

136.

Why are physical barriers and signage used in areas with EVs?

  • To warn about electrical hazards and mark off xEV service areas

  • To keep customers out of the service area

  • To lower insurance premiums

  • Because EVs and gas cars shouldn't be in the same service area

Correct answer: To warn about electrical hazards and mark off xEV service areas

With the appropriate signage and physical barriers, workers and individuals are notified when there are electrical hazards present. These warnings also mark off xEV service areas.

Barricades can also be used with signs to limit access to the work area. It's important that these barricades aren't conductive if there's a risk of electrical hazard exposure. 

137.

What can carry or produce potentially dangerous electrical currents?

  • High-voltage battery pack

  • Rear-seat entertainment system

  • Infotainment system

  • Negative battery cable

Correct answer: High-voltage battery pack

Several components in the electric car can carry and produce potentially dangerous currents. These include, but are not limited to:

  • High-voltage battery pack
  • Battery charging equipment
  • Battery Management System (BMS)
  • High-voltage cables (orange)
  • Inverter power electronics
  • Capacitors in the inverter-rectifier assembly

These currents can also come from the DC/DC converter, electronic control unit (ECU), modules, electric motors, air conditioning compressor, and the high-voltage heater.

While the rear-seat entertainment system and infotainment system are both electronic, there's not enough voltage output for either to be dangerous. The negative battery cable doesn't carry voltage — it is used to ground circuits.

138.

What items don't need to be secured during repairs?

  • Auxiliary battery

  • Removed fuses

  • Removed relays

  • Manual Service Disconnect (MSD) 

Correct answer: Auxiliary battery

The auxiliary battery doesn't need to be in a secure location during EV repairs. This low-voltage battery may remain in its place disconnected.

The removed fuses, relays and Manual Service Disconnect (MSD) should all be in a secure location during the repair. Preferably, these items should be locked up, so they can't be reinstalled without the technician's knowledge. 

139.

Stranded energy from a damaged battery can release levels of voltage ranging in what amounts?

  • 100 V DC to 800 V DC

  • 75 V DC to 700 V DC

  • 50 V DC to 500 V DC

  • 25 V DC to 250 V DC

Correct answer: 100 V DC to 800 V DC

When a battery contains stranded energy, it can release all or most of the voltage it has stored. That means it's capable of releasing 100 V DC to 800 V DC, or even more in commercial vehicles. 

This issue is serious and should only be dealt with by trained technicians or emergency responders. 

140.

What systems on the EV contain high voltage?

  • AC and DC systems

  • AC systems

  • DC systems

  • Instrument cluster

Answer: Both AC and DC systems

Electrified propulsion vehicles contain high-voltage DC and AC systems. Both of these systems are considered dangerous and can lead to injury.

Working with these systems can lead to burns or electrical shock. There's also a chance of death. 

×