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ASE xEV (Level 1) Exam Questions
Page 8 of 10
141.
What kind of voltage is contained in the EV charging equipment?
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High-voltage
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Low-voltage
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Zero voltage
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Medium voltage
Correct answer: High-voltage
EV battery charging equipment is high-voltage. It should be handled with care, only by licensed technicians.
Other high-voltage components include the battery pack, the Battery Management System (BMS), and the orange cables. High-voltage also runs through the DC/DC converter, the electric motor, and the air conditioning compressor.
142.
Who needs medical attention after an electrical shock?
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Everyone
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A person with burn mark on the skin
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If they have trouble breathing
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Only if confusion exists
Correct answer: Everyone
Electrical shock may leave a burn mark on the skin, but not always. In some cases, there can be no symptoms of lingering problems, even if there's damage done to the internal organs. Electrical shock can also lead to cardiac arrest or death.
It's always recommended to take the shocked person to a healthcare provider.
143.
What does CPR stand for?
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Cardiopulmonary Resuscitation
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Chest Pounding Resuscitation
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Cardiovascular Pushing Rest
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Cardio Pumping Rounds
Correct answer: Cardiopulmonary Resuscitation
CPR stands for Cardiopulmonary Resuscitation. CPR is an emergency lifesaving procedure that is used when the heart stops beating. By implementing CPR at the first sign of trouble, the chances of survival may double or triple, depending on the situation.
CPR keeps the blood flowing, even if the heart isn't working as it should. It should be performed after calling 911 to report the emergency.
144.
According to OSHA, what must first be done before working on electrical equipment?
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Equipment must be rendered safe by de-energizing it through proper lockout and tagging protocols
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Shoelaces must be tied
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Worker must stand on a rubber mat
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Fire extinguisher should be near work station
Correct answer: Equipment must be rendered safe by de-energizing it through proper lockout and tagging protocols
All equipment must be de-energized and stored through lockout or tagging, depending on the situation. However, a Level 1 technician is not trained to perform this task.
It's still important for a Level 1 technician to understand what equipment is de-energized and what isn't. It also helps for these technicians to provide safety barriers or other supporting work for the technicians working on the EVs.
145.
What doesn't lead to mechanical abuse of an ESS battery?
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Water intrusion
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Being crushed
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Penetration from an accident
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Being dropped
Correct answer: Water intrusion
Water intrusion is considered an environmental impact that can damage a battery. Other environmental impacts include extreme heat, rodent damage to wiring, and seismic activity.
Mechanical abuse signifies physical damage to the battery. Some examples of mechanical abuse include being crushed, dropped, or penetrated from an accident.
146.
What is an ESS?
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Energy storage system
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Electric system specification
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Energy safety standard
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Electric safety system
Correct answer: Energy Storage System
ESS stands for Energy Storage System. It's a device or group that's capable of storing energy to provide it at a later time.
A battery ESS is important to EVs because it's how the power is stored for use while driving.
147.
If you must remove an injured person away from the source of electrical current, which of the following items should not be used?
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Aluminum stick
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Hot stick
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Wood stick
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Plastic stick
Correct answer: Aluminum stick
Aluminum is metal and it conducts electricity. By touching the person being shocked with an aluminum stick, you could become part of the current.
If you can't shut down the source and need to move the person, it's best to use a hot stick. If one isn't provided, you could also use a wood, plastic or cardboard stick to move the source of energy away from the person.
148.
If you can't turn off the source of electric shock, what is one step you can take?
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Call 911
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Grab the victim to remove them from the current
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Offer aid to the victim being shocked
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Move the EV out of the service bay
Correct answer: Call 911
The most important step you can take is to call 911. It's vital that first responders head to your location as soon as possible, especially if someone has been the victim of electrical shock.
While the source is still turned on, there's an additional risk for fire or shock. If it can't be turned off, you want the first responders to take the next step.
149.
What color is the Manual Service Disconnect (MSD)?
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Orange
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Red
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Pink
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Yellow
Correct answer: Orange
Most new high-current systems have a low-voltage service disconnect lever to remove the power from the circuits. This Manual Service Disconnect (MSD) is represented by an orange removable connector.
This orange color is the same as the high-voltage cables used in the EV. By making the equipment orange, the manufacturer is letting users know that high voltage exists.
150.
What devices must be singularly identified?
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Both lockout and tagout devices
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Only lockout devices
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Only tagout devices
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None
Correct answer: Both lockout and tagout devices
Both lockout and tagout devices must be singularly identified. They must be the only device(s) used for controlling energy. They are not designed to be used for any other purposes.
Additionally, the devices must meet all OSHA requirements. They must be durable, substantial, and identifiable.
151.
Who can use an AED in an emergency?
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Everyone
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LEVEL ONE technician
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LEVEL TWO or LEVEL THREE technician
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First responders
Correct answer: Everyone
AED users do best when they are trained in CPR and the proper use of the device. Employers can implement a training program to make AED usage more comfortable.
When an emergency occurs, anyone can use an AED to help someone in distress. It's best to call 911 first and explain the situation. If you aren't sure how to use the AED, emergency personnel will guide you.
152.
What technician is permitted to drive EVs?
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All three levels
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Level 1
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Level 2
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Level 3
Correct answer: All three levels
Level 1 technicians are trained to operate and drive electric vehicles, but these people aren't cleared for repairing or maintaining the high-voltage systems on electric vehicles.
Level 2 and 3 technicians have the training to maintain and repair high-voltage systems on EVs. These technicians can also drive the EVs.
153.
How do you take care of an electrical shock burn?
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Cover it loosely with a sterile gauze bandage
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Cover it with a blanket
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Wrap a towel around it
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Don't cover it
Correct answer: Cover it loosely with a sterile gauze bandage
If there are burned areas that need to be covered, use sterile gauze bandaging. A clean cloth could also be used if there's no gauze available.
Don't apply a blanket or towel because the loose fibers could stick to the burns. You shouldn't keep it open, either because dirt or debris could get into the wound.
154.
What is an electrically aware person?
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Anyone that may come across an EV at work
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Anyone that understands electricity
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Anyone who has knowledge about the flow of electricity
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Anyone that drives an electric car
Correct answer: Anyone that may come across an EV at work
The ASE defines an electrically aware person as "anyone who may encounter an EV in the workplace." This definition doesn't specify only people that work on EVs.
It's not required to understand electricity, its flow, or all of its inner workings to be classified as an electrically aware person. Additionally, a person driving the EV isn't automatically an electrically aware person by ASE standards.
155.
How are BEVs (Battery Electric Vehicles) charged?
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Plugging into electric charging equipment
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Solar power
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Gasoline
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Diesel
Correct answer: Plugging into electric charging equipment
All BEVs are charged by physically plugging into electric charging equipment. These vehicles contain a battery but no fuel tank.
Hybrid and Plug-in Hybrid vehicles use a combination of power from a battery and an internal combustion engine. The internal combustion engine requires fuel to work.
156.
What region do the ASE Electrified Propulsion Vehicles (xEV) High-Voltage Electrical Safety Standards apply to?
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North America
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Worldwide
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Eastern United States
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Western United States
Correct answer: North America
The ASE Electrified Propulsion Vehicles (xEV) High-Voltage Electrical Safety Standards apply to technicians in North America. It's designed for technicians working on or around electrified propulsion vehicles.
Some of the same standards apply to other countries, but are designated by different agencies.
157.
Which of the following does not create a safe working environment for EVs?
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Conductive workbench and equipment
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Adequate lighting so technicians can see the work they are doing
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Limited foot traffic in EV areas
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Secured storage area for holding high-voltage components, working or broken
Correct answer: Conductive workbench and equipment
A safe working environment needs a workbench and equipment that's non-conductive. There should also be rubber mats in the area.
It's best to have adequate lighting in the work area for technicians to avoid mistakes. Regulations also specify that foot traffic should be limited where EVs are, and employers should provide a secured storage area for holding the high-voltage components, whether they are functional or not.
158.
Which of these situations is going to lead to a higher electrical hazard risk?
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Improper work practices
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Working batteries
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Trained employees
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Standard emergency protocols
Correct answer: Improper work practices
When improper work practices or a lack of training occur, there's a higher chance of electrical risk. It's important that all employees are trained to be electrically safe.
Other situations that increase the risk include defective or damaged batteries. Any vehicle or structure damage that could affect the battery is also a hazard.
159.
What are the two main types of motors in EVs?
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AC and DC
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DC and ICE
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AC and ICE
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ICE and hybrid
Correct answer: AC and DC
Most electric cars contain either direct current (DC) motors or alternating current (AC) motors.
DC motors have direct current and run between 96 to 192 volts. These are easier to install and cheaper to manufacture.
The AC or three-phase motor is powered by 240 volts of alternating current. It can be either an induction motor or synchronous motor. Induction motors are more cost-effective, which is why they are used in vehicles, such as the Tesla Model 3.
The internal combustion engine (ICE) is used in gas- and diesel-powered vehicles. Hybrid engines run on a combination of internal combustion engines and electric motors.
160.
How does thermal abuse occur?
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When the battery is exposed to external heat sources
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If the battery is overcharged
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After a flood
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After the battery is dropped
Correct answer: When the battery is exposed to external heat sources
If the battery endures extreme heat, thermal abuse occurs. This heat goes beyond normal ambient temperatures, but comes from something abnormal.
If the battery is overcharged, it can fail from electrical abuse. Dropping the battery is a form of mechanical abuse, and a flood can lead to an environmental impact, all of which can harm the battery.