Chapter 11

Question 1

1. When the term split-phase electricity is used, which of the following would it refer to?
   A. Single-phase, three-wire 120 volt-ac common household receptacle
   B. Single-phase, three-wire 240 volt-ac
   C. Three-phase, 240 volt-ac
   D. Three-phase, 480 volt-ac with neutral line

Answer 1

A. Single-phase, three-wire 120 volt-ac common household receptacle

Question 2

2. What is the square root of the number 3?
   A. 1
   B. 2
   C. 1.732
   D. 3.141

Answer 2

C. 1.732

Question 3

3. In an ac three-phase, three-wire delta configuration, what is the function of the neutral line?
   A. Circuit ground
   B. Circuit supply voltage
   C. Balance the line-to-line voltage sine waves
   D. There is no neutral line in a three-phase delta configuration.

Answer 3

D. There is no neutral line in a three-phase delta configuration.

Question 4

4. If you were charging a BEV from a household source of electricity, which of the following would take the least amount of time?
   A. Level 1 ac
   B. Mode 1 cable
   C. NEMA 5-15 receptacle
   D. NEMA 14-50 receptacle

Answer 4

D. NEMA 14-50 receptacle

Question 5

5. When the acronym CCS is used to describe a J1772 or IEC charge coupler, which of the following is true?
   A. Supports ac and dc fast-charging
   B. Supports ac fast charge only
   C. Supports dc fast charge only
   D. Supports dc grid feed only

Answer 5

A. Supports ac and dc fast-charging

Question 6

6. What charge connector receptacle would you more likely find on an EV manufactured in Japan?
   A. J1772
   B. IEC
   C. CHAdeMO
   D. Supercharger

Answer 6

C. CHAdeMO

Question 7

7. Technician A says that most current EV charge cables incorporate both LIN I2V and V2I communications. Technician B says the FCEV hydrogen fueling systems use infrared communications to ensure safe refueling. Who is correct?
   A. Technician A only
   B. Technician B only
   C. Both A and B
   D. Neither A nor B

Answer 7

B. Technician B only

Question 8

8. If an EV with a smart charging cable attempted to drive away while the cable was still connected to the charge station, which of the following would be more likely to occur?
   A. The EV would not start.
   B. The charge receptacle would be torn out of the vehicle as it pulled away.
   C. The charge cable would be ripped out of the charge station.
   D. Every occupant in the vehicle would be electrocuted.

Answer 8

A. The EV would not start.

Question 9

9. Where would you most likely find a pantograph on a BEV transit bus?
   A. In the forward engine compartment
   B. In the rear engine compartment
   C. Below the floor deck
   D. On the roof

Answer 9

D. On the roof

Question 10

10. Which of the following methods of charging an EV from a grid station source is contact-free?
    A. Stationary pantograph
    B. Overhead pantograph
    C. Inductive
    D. CCS type 2 coupler

Answer 10

C. Inductive

Question 11

11. If a driver of an FCEV drove away while still connected to a hydrogen fuel hose, which of the following would be more likely to occur?
    A. The fuel hose would be ripped apart.
    B. Breakaway coupler separation, isolating both the vehicle and fuel supply.
    C. A catastrophic explosion.
    D. An EPA-reportable toxic release event.

Answer 11

B. Breakaway coupler separation, isolating both the vehicle and fuel supply.

Question 12

12. At what time of day is time-of-use electricity likely to be at its least costly?
    A. 2 am
    B. 9 am
    C. 2 pm
    D. 5 pm

Answer 12

A. 2 am

Question 13

13. When an FCEV fuel storage system is filled with H70, what does the numeral 70 represent?
    A. 70,000 psi
    B. 70 kPa
    C. 70 bar
    D. 70 MPa

Answer 13

D. 70 MPa

Question 14

14. Which of the following SAE standards covers the safety and refueling procedures of automobile and light-duty hydrogen–fueled vehicles?
    A. SAE J1962
    B. SAE J1772
    C. SAE J2601
    D. SAE J3570

Answer 14

C. SAE J2601

Question 15

15. Which SAE standard addresses the recharging V2I and I2V communications required by electric vehicles?
    A. SAE J3068
    B. SAE J1962
    C. SAE J1939
    D. SAE J1772

Question 16

16. Which of the following represents the energy equivalent of a gallon of gasoline?
    A. 16.4 kWh
    B. 33.7 kWh
    C. 45 kilojoules
    D. 47.7 kilojoules

Answer 16

B. 33.7 kWh

Question 17

17. Technician A says that EPA MPGe data indicate that BEVs have equivalent or marginally better efficiency when operated in an urban as opposed to highway environment. Technician B says the energy operating costs of BEVs are usually higher than equivalent ICE-powered vehicles. Who is correct?
    A. Technician A only
    B. Technician B only
    C. Both A and B
    D. Neither A nor B

Question 18

18. Technician A says that inductive charging of BEVs is the most efficient method of fully charging the vehicle’s EESS. Technician B says the only disadvantage of refueling an FCEV from an H35 dispenser is that it takes twice as long. Who is correct?
    A. Technician A only
    B. Technician B only
    C. Both A and B
    D. Neither A nor B