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The Light Electric Vehicle Association (LEVA), Florida, USA, represents the strategic interests of light electric vehicle retailers, dealers, distributors, manufacturers and suppliers to promote the development, sale, and use of LEVs worldwide.

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LEVA E-Bike Technician Training & Certification

Level 1 Summary
The training has been developed for LEVA by Dr. Don Gerhardt and various LEVA members and E-Bike manufacturers. The training is based on training developed on battery systems and electric vehicles for universities and community colleges by Dr. Gerhardt.

LEVEL one Certification Instructions:
As LEVA Member you have free access to the training content.
The certification for Level one fee it’s only $50.- for Members and Non-Members.
Members and Non-Members:
PLEASE aks for your Documentation & Certification TEST to info@levassocaiton.com.
Pay your certification fee here. Thank you!

You can Practice before you send us your TEST in the following Online Quiz.

Order your Study Docs

Certification Practice Written Test

Step 1 of 41

2%

Name*
First Last
Email*
How many wheels do LEV's have?*
- Only two
- Four or fewer
- Two or three
- Only three

Which three characteristics of LEV’s are most commonly regulated by law?*
- Control style, motor power, and maximum rider weight
- Motor power, maximum speed, and control style
- Motor power, maximum speed, and minimum range
- Maximum speed, control style, and frame style

Which of these is NOT an LEV?*
- Electric Motorcycle
- None of these are LEV’s
- Electric Car
- Electric Golf Cart

How many LEV’s are in use today in China?*
- 10 million
- 250 million
- 1 million
- 150 million

The most expensive component of an LEV is always the:*
- HMI
- Battery
- Motor
- Controller

This component acts as a super-fast, solid-state switch and helps control the flow of power to the motor:*
- MOSFET
- Capacitor
- Hall Sensor
- Fuse

This component stores energy even when the battery is disconnected:*
- Hall Sensor
- Capacitor
- Fuse
- MOSFET

This component stores energy even when the battery is disconnected:*
- MOSFET
- Fuse
- Hall Sensor
- Capacitor

This component measures the strength of magnetic fields and is used to help control the flow of power to the motor:*
- Fuse
- MOSFET
- Hall Sensor
- Capacitor

This component is part of the electrical circuit and is designed to sacrifice itself to protect the rest of a circuit in the case of a dangerous spike in current:*
- Capacitor
- Hall Sensor
- Fuse
- MOSFET

What is purpose of the HMI, or Human-Machine-Interface?*
- To allow the rider to control the essential functions of the LEV
- To automatically control the power assist level
- To allow the rider to recharge their battery anywhere they like
- To automatically control the power delivered to the motor

This type of magnet is always “on” and exerting magnetic force:*
- Universal
- Electro
- Permanent
- Constant

This type of magnet is only “on” when energized by an electrical source (such as a battery):*
- Permanent
- Constant
- Electro
- Universal

A battery cell is:*
- The component which, along with other cells, make up a battery
- The component which, along with other cells, make up a unit
- The complete battery which, along with other cells, make up a unit
- The complete pack which, along with other units, make up a battery

C-Rate is a measurement of what?*
- The rate at which a battery self-discharges relative to its maximum capacity
- The rate at which a battery can be safely discharged relative to its maximum capacity
- The rate at which a battery is charged or discharged relative to its maximum capacity
- The rate at which a battery can be safely charged relative to its maximum capacity

What is the purpose of the Battery Management System?*
- To automatically control essential functions of the battery pack, such as cell balancing
- To prevent dangerous current spikes during control charging and discharging
- All of these are functions of the Battery Management System
- To prevent battery fires by disabling portions of the battery, including itself, as a last-resort

A motor which is installed into the middle of a wheel is called a:*
- Mid-Drive Motor
- Hub Motor
- Shaft-Drive Motor
- Center-Drive Motor

A motor which is installed between the pedals, in the bottom bracket, is called a:*
- Hub Motor
- Shaft-Drive Motor
- Center-Drive Motor
- Mid-Drive Motor

The metal winding inside the motor is made of:*
- Steel
- Lithium
- Aluminum
- Copper

The purpose of this winding is to:*
- Balance the alignment of the motor by using the winding as cheap dead weight
- Sense the electromagnetic fields inside the motor and send this information to the controller
- Radiate heat away from the motor to extend its useful lifespan
- Generate an electromagnetic field to propel the motor

The purpose of the controller is to:*
- Allow the rider to select various assist levels by pressing a button
- Prevent battery fires by disabling portions of the battery, including itself, as a last-resort
- Act as the “brain” of the electrical system, controlling the flow of power from the battery to the motor
- Automatically brake and accelerate upon detecting riding hazards

Pedal Assist works by:*
- A sensor measures the effort exerted by the motor and then applies an equivalent amount of power to the pedals
- A sensor measures the effort exerted by the rider and then applies an equivalent amount of power to the motor
- A sensor measures the weight of the LEV and then applies an equivalent amount of power to the pedals
- A sensor measures the weight of the rider and then applies an equivalent amount of power to the motor

The Pedal-Assist sensor is typically located:*
- Inside the seat post
- Between the pedals
- On the rear wheel
- Behind the chain guard

What is the formula for Ohm’s Law?*
- R = IV
- V = IR
- I = VR
- None of these

Voltage can be thought of as:*
- The “speed” at which electricity moves through a circuit
- The “pressure” at which electricity moves through a circuit
- The “work” being done by the motor
- The “difficulty” at which electricity moves through a circuit

Amps can be thought of as:*
- The “pressure” at which electricity moves through a circuit
- The “speed” at which electricity moves through a circuit
- The “work” being done by the motor
- The “difficulty” at which electricity moves through a circuit

Watts can be thought of as:*
- The “difficulty” at which electricity moves through a circuit
- The “work” being done by the motor
- The “pressure” at which electricity moves through a circuit
- The “speed” at which electricity moves through a circuit

Resistance can be thought of as:*
- The “pressure” at which electricity moves through a circuit
- The “difficulty” at which electricity moves through a circuit
- The “work” being done by the motor
- The “speed” at which electricity moves through a circuit

Watt Hours is a measurement of:*
- The overall resistance of stored energy available to be pushed through the circuit
- The overall pressure of stored energy available to be pushed through the circuit
- The overall speed of stored energy available to be pushed through the circuit
- The overall amount of stored energy available to be pushed through the circuit

Is there a serious risk of electrical shock while working on LEV’s?*
- The risk is not that serious, and precautions can be made which will virtually eliminate the possibility
- The risk is zero - you cannot possibly be shocked, no matter what you do
- The risk is extremely serious, even when precautions are made - a single mistake can cause disaster
- The risk is serious, but precautions can be made which will virtually eliminate the possibility

What should an LEV technician check first when “following the juice”?*
- The battery that the LEV is plugged into
- The wall outlet that the charger is plugged into
- The LEV that the battery is plugged into
- The charger that the battery is plugged into

What is the greatest danger to the LEV technician?*
- Electrical shock
- Hazardous material poisoning
- The test ride
- Battery fires

Which of these is the most useful tool for an LEV technician?*
- Laptop computer
- Turbo encabulator
- Battery backup
- Multimeter

What is the most common problem experienced by an LEV technician while working on electric bikes?*
- Dead or damaged batteries
- Faulty components
- Normal, non-electric bicycle problems
- Blown fuses

Which type of battery cannot burn?*
- All of these batteries can burn
- Lithium-Ion (Li-Ion)
- Lead-Acid (VLRA)
- Nickel-Metal-Hydride (NiMh)

What are the main hazards of a lithium-ion battery fire?*
- The emission of toxic gas capable of killing an unprotected person in a confined space within 10 minutes (this gas can also explode)
- All of these are hazards
- Intense flame which is difficult to permanently extinguish
- Multiple explosions which spray shrapnel and toxic material as hot as 1,000 degrees Fahrenheit

What can you do to prevent a battery fire?*
- Always use the right charger for the right battery - don’t mix and match
- All of these are ways to prevent a battery fire
- Put battery chargers on a timer to limit the length of time they can charge unattended
- Never charge a battery overnight or when there is no-one in the building to supervise it

What is the first sign of a battery fire?*
- All of these are potential first signs of a battery fire
- Smoke
- Bad smell
- Explosions

What is the first thing you should do when you discover a battery fire?*
- Attempt to fight the fire yourself
- Call 911
- Evacuate the building
- Attempt to move the battery out of the building

What is the second thing you should do when you discover a battery fire?*
- Attempt to fight the fire yourself
- Evacuate the building
- Call 911
- Attempt to move the battery out of the building

How do you extinguish a battery fire?*
- Extinguish the flame, cool the battery with water
- Pick up the battery and place it in a metal bucket, then cover with ice
- Pick up the battery and place it in a sand-filled metal bucket
- Extinguish the flame, cool the battery with ice
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Our over 500 members worldwide receive support and educational resources to expand their businesses while initiating efforts to influence and adopt legislation, regulation, performance standards, promotion and general best practices in the light electric vehicle industry.

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