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Quiz Session - Attempts With Random Questions

ASE xEV (Level 1) Exam Questions

Page 5 of 10

81.

The Level 1 Electrically Aware Person may handle all of the following jobs, except:

  • Repair high-voltage systems

  • Drive the EV

  • Perform maintenance on non-high-voltage systems

  • Come in contact with EV while performing other job-related tasks

Correct answer: Repair high-voltage systems

The Level 1 Electrically Aware Person doesn't have the training necessary to handle repairs of high-voltage systems. These would be handled by Level 2 or Level 3 technicians only.

This Level 1 technician can drive the EV and perform maintenance on non-high-voltage systems. They are also capable of performing other work-related jobs in the vicinity of an EV. 

82.

How far away should you be from jumping or sparking wires?

  • At least 20 feet

  • At least 5 feet

  • At least 10 feet

  • At least 30 feet

Correct answer: At least 20 feet

If wires are jumping or sparking, you should always remain a minimum of 20 feet away. The electrical current can jump and cause shock, even if you aren't right next to it.

It's best to find the source of the power and shut it down, if it can be done safely. If turning off the power requires you getting too close to the electrical current, it's best to wait for first responders to arrive. 

83.

How many actions are required to remove a connector from its mating component in a high-voltage system?

  • Two

  • One

  • Five

  • There are no regulations

Correct answer: Two

Federal guidelines specify that any connector attached to high-voltage components must contain a locking mechanism with two distinct actions to remove it. Additionally, the use of tools is required for removal. 

This regulation ensures that the connectors aren't removed easily by untrained people, thereby reducing the risk of electrical shock and fire. 

84.

What must be worn whenever there's a risk of arc flash?

  • Personal Protective Equipment (PPE)

  • Shoes

  • Latex gloves

  • Sunglasses

Correct answer: Personal Protective Equipment (PPE)

Personal Protective Equipment (PPE) must be worn when there's a risk of arc flash. Protection must cover the eyes and face to prevent injury, especially due to the potential of flashes or flying objects. 

OSHA also requires the use of physical barriers, shields, or insulating gear to protect employees. Arc flashes can cause injury or death when unprotected. 

85.

What does the onboard charger do?

  • Takes incoming AC power and converts it to DC to be used by the traction battery

  • Directs power to the wheels

  • Runs the accessories off of auxiliary power

  • Stores power to be used later

Correct answer: Takes incoming AC power and converts it to DC to be used by the traction battery

The onboard charger needs to convert the AC power coming into the vehicle to DC power for the battery. It also limits the amount of power going to the battery to avoid damage. 

The onboard charger cannot direct any power to the wheels, as this is the job of the electric transmission. The onboard charger doesn't run the accessories, nor can it store any power to be used later. These are both jobs for the batteries. 

86.

What must be done when high-voltage system repairs are left unattended?

  • A technician defines a safety zone around the area with warning signs

  • Ropes should be set up to keep people from entering

  • Conductive barricades should be installed to keep people protected

  • People may freely walk in and out of the area without protection

Correct answer: A technician defines a safety zone around the area with warning signs

It's the responsibility of the Level 1 technician to set up a safety area around the high-voltage system when repairs must be unattended for a time. Warning signs can be used to alert others to the danger.

People should never be allowed to walk freely around an unattended area. Ropes aren't a recommended solution and conductive barricades can lead to more danger around high-voltage systems. 

87.

When performing chest compressions during CPR, what is the appropriate depth for each compression?

  • 2 in (5 cm)

  • 2.75 in (7 cm)

  • 3.5 in (9 cm)

  • 1.2 in (3 cm)

Correct answer: 2 in (5 cm)

Chest compressions can be performed at a rate of 100 to 120 per hour, working on a 30 compression:2 breath ratio. These chest compressions should occur at a depth of 2 in (5 cm).

It's advisable never to exceed 2.4 in (6 cm) with any chest compression.

88.

What guidelines should signs and tags that are used to identify potential electrical hazards always follow?

  • Federal, state, and local laws

  • Federal laws only

  • State laws only

  • Local laws only

Correct answer: Federal, state, and local laws

All signs and tags that are used for identifying potential electrical hazards must follow federal, state, and local laws. They should also be set up in accordance with the recommendations of ASE and OSHA.

It's best to check with the employer to see if there are any additional guidelines added for that location.

89.

What part/system is the thermal cooling system not responsible for regulating the temperature?

  • Brakes

  • Batteries

  • Electric motor

  • Power electronics

Correct answer: Brakes

The thermal cooling system regulates the operating temperature of the electric motor. It also monitors the temperature of power electronics, batteries, and other components in the EV.

Regenerative brakes are used in EVs. This braking system utilizes electric motors instead of the traditional friction braking system to slow down the vehicle, so there's less heat produced. 

90.

What is an environmental impact that can lead to battery failure?

  • Rodent damage to wiring

  • Puncture damage

  • Overcharging the battery

  • Dropping the battery

Correct answer: Rodent damage to wiring

If rodents get a hold of the electrical wiring, battery damage can occur. This is one form of environmental impact. Other types of environmental impact include extreme heat, flooding, and seismic activity.

Dropping the battery and puncture damage both create mechanical abuse. By overcharging the battery, it suffers from electrical abuse. 

91.

While waiting for emergency personnel, what should you do for an injured victim of electrical shock?

  • Prevent them from getting cold

  • Move them

  • Follow advice from YouTube videos

  • Leave them to flag down help

Correct answer: Prevent them from getting cold

You can use a blanket or jacket to keep the injured person warm while waiting for help to arrive. Ask them how they are feeling, if they are conscious and act accordingly. 

It's only wise to move the person if they are in immediate danger, such as if the chance of electrical shock is still a threat. Stay present with them and relay any changes to the 911 operator while you wait. 

92.

What are physical signs, barriers, and car toppers used to identify?

  • If the vehicle is energized or non-energized

  • Who is working on the vehicle

  • What service is being performed

  • What time service should be completed

Correct answer: If the vehicle is energized or non-energized

A combination of safety signs, tape, cones, tags, and a magnetic car topper is used to define whether the vehicle is energized or non-energized. This warning ensures individuals know about the possible electrical hazards that could lead to injury.

These signs and tags must meet the state, federal, and local standards and codes. 

93.

What does a Level 1 technician need to know?

  • Emergency Response training (includes using specialized response equipment)

  • How to use the Manual Service Disconnect (MSD)

  • Steps to repairing high-voltage vehicles

  • How EV motors work

Correct answer: Emergency Response training (includes using specialized response equipment)

Level 1 technicians are tested on emergency response training and the use of specialized response equipment. They also need to know first-aid, including CPR. 

The Level 1 technician should never touch the Manual Service Disconnect (MSD) or repair a high-voltage vehicle. They also aren't required to know the inner workings of the EV motor. 

94.

According to the Environmental Protection Agency (EPA), how many municipal waste facilities have suffered a fire because of lithium-ion batteries in 2021?

  • At least 65

  • 55–60

  • 45–55

  • 35–45

Correct answer: At least 65

There were at least 65 fires reported in 2021 at municipal facilities because of lithium-ion batteries. Not all of these fires are the result of EV batteries.

Some of the reports were for smaller battery types, such as laptops and cell phones. Yet, this report shows the danger of lithium-ion batteries.

95.

What color is used to warn about the danger of high-voltage cables?

  • Orange

  • Red

  • Yellow

  • Black

Correct answer: Orange

High-voltage cables in EVs are insulated or wrapped in orange to warn of the risks. This guideline falls in line with FMVSS 305 S5.4.1.2 (Federal Motor Vehicle Standards). 

This guideline doesn't apply to any cables that are located within electrical protection barriers. 

96.

Who should be called first if someone has been shocked?

  • 911

  • Your boss

  • The person's family

  • Electric company

Correct answer: 911

911 is the first call that should be made after someone has endured electrical shock. It's important to get emergency personnel in route and the operator can offer further guidance based on the conditions.

There's no need to call your boss or the person's family until after the situation is resolved. Also, you don't need to call the electric company to turn off the power because there should be a way to shut it off at the source. 

97.

Which of the following toxic substances isn't found in lithium-ion batteries?

  • Mercury

  • Cobalt

  • Nickel

  • Manganese

Correct answer: Mercury

Mercury is not one of the many substances found in lithium-ion batteries. These batteries do contain cobalt, nickel, and manganese. 

They also contain lithium. Because of these toxic substances in the construction, lithium-ion batteries can cause explosions and fires if damaged. 

98.

A technician should know the labeling and its meaning on what vehicles?

  • Any being worked on

  • All EVs

  • Every make/model

  • None

Correct answer: Any being worked on

It's the responsibility of the technician to understand the Original Equipment Manufacturer (OEM) labeling when working on a vehicle. Technicians need to identify and understand what the labels are saying.

The labeling may be different among OEMs, so it's up to the technician to determine how to proceed with each vehicle by following the manufacturer's guidelines. 

99.

How should the technician verify the color coding of high-voltage components?

  • Through the Original Vehicle Manufacturer (OEM) 

  • Online schematics

  • ASE study guide

  • Asking employer

Correct answer: Through the Original Vehicle Manufacturer (OEM) 

All color coding must be verified with the Original Vehicle Manufacturer (OEM) prior to starting any repair work or maintenance. High-voltage cables should be orange unless they are within electrical protection barriers.

Technicians should never assume that they know which cables are high-voltage until comparing the system against documentation from the manufacturer. 

100.

When should you move a person with an electrical injury?

  • If there's immediate danger

  • When they are confused

  • After the electrical current stops flowing

  • If they hit their head

Correct answer: If there's immediate danger.

You don't want to move someone who's been shocked unless there's an immediate danger that you need to prevent. Your best bet is to call 911 before doing anything. Emergency responders can provide you with more insight. 

Only specially trained technicians should attempt to separate the person from the electrical conductor. This person would need to wear proper high-voltage gloves and Personal Protective Equipment (PPE), plus use an insulated retrieval hook. 

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