Ev Lesson 2
Which of the following is not a variable that determines the charging time of an EV?
Connector configuration
The Society of Auto Engineers (SAE) creates standards for which of the following?
Maximum current and voltage specifications for EVSE Plug configuration Safety features
Wireless charging is more expensive than coupled EVSE.
True
DC charging equipment provides DC directly to ? in an EV.
battery management systems
The purpose of the J1772 connector pins is to provide ? .
A charging interface that is safe for consumers to use A means to signal the EVSE to stop charging based on the pin contact state Signals to the EVSE that the connector is properly seated on the vehicle
Which of the following is the Japanese DC quick charging standard?
CHAdeMO
EV networks generate revenue with which of the following?
Call-to-pay Membership fees Station usage fees
Which of the following is true of EV charging networks?
Charging networks offer both paid memberships and free memberships with pay-as-you-go charging. There are over a dozen networks across the U.S. and Canada. They allow businesses a way to draw consumers to charging equipment and generate revenue via transaction processing.
EVSE provides DC power to the electric vehicle charging port.
False
The EV's power acceptance rate should not be considered when making EVSE purchasing decisions.
False
Which of the following is true about the J1772 standard control pilot terminal pin's function?
It changes the state of the EVSE according to the voltage present. It defines the state of the EVSE. It uses a +12V to -12V AC square wave signal.
What are the advantages to wireless charging?
It has no exposed electrical contact points Wireless charging has better aesthetic quality
An AC charger with a single-phase 120-volt connection and 14-16 amperes of continuous current output is classified as a ? charger.
Level 1
An AC charger with a single-phase 208-volt or 240-volt connection and a continuous current output of up to 80 amperes is classified as a ? charger.
Level 2
The SAE standard for wireless charging has specifications that include which of the following?
Magnetic triangulation for vehicle alignment over the power source coil Means to allow for payment without physical interaction Up to 11 kW charging capacity
The State of Charge of the EV battery is ? .
a determining factor in calculating the time necessary to fully charge an EV
Wireless EV charging utilizes the principles of ? .
induction
The CHAdeMO V1.0 Standard has charging power up to ? at ? , up to ? .
62.5 kW / 500 VDC / 125 A
EV networks utilize memberships that are ? .
Free based or pay as you go
Electric vehicle supply equipment (EVSE) provides which of the following safety features?
GFCI protection Hardware fault detection
Which of the following was an early electric vehicle charger?
General Electric arc rectifier
What is the SAE standard for wireless charging?
J2954 recommended practice
Which of the following is connected to the charge controller of a wireless EV charger via hardwiring?
Power source coil
Which of the following acronyms represents the level of charge present in an EV battery?
SOC
Charging is defined as which of the following?
Supplying power (kW) to an EV battery
The first EV chargers were external and supplied DC current directly to the vehicle's batteries
True
Later in the development of EV charging equipment, the actual charging means was accomplished by a(n) ? that converts AC to DC to be used in charging the vehicle's battery.
rectifier