1. A cell that is rated for 3350 mAh should be fully discharged in ____ hours if 1 ampere of current is continuously flowing

0.335

3.35

33.5

335

3350

2. Battery cells in a _____ configuration add current capacity, leaving the voltage constant

3. In a battery module , a cell mismatch of 5% can result in ____ of the battery being unused

0.02

0.05

0.1

20

0.95

4. Voltages for battery packs rane from ___ for Evs

100-200 V

200-400 V

300 – 600 V

400-800 V

500 – 1000V

5. For lithium-ion batteries in Evs , the self-discharge rate is typically

0-1% per month

1-2% per month

2-3% per month

3-5% per month

5-10% per month

6. Which of the following is not a unit of measure of battey capacity

Ah

mAh

kW

kWh

Wh

7. A single anode and cathode that are separated by electrolyte in order to produce voltage and current is referred to as _____

8. The circuit shown in Figure 6-2 has a 33 test resistor connected to module with five lithium-ion cells each rated at 3.7V and each with an internal resistance of 350.  Calculate the actual terminal voltage of the module

9. Which of the following batteries is the most common auxiliary battery in Evs?

Lithium-ion

Solid-stat

NiMH

NiCd

Lead acid

10.Which type of material is not used in cathodes of lithium-ion batteries

Copper

Cobalt

Nickel

Lithium

Manganese

11. Evs typically have traction battery warranties that last for

3 years or 50,000 miles

5 years or 70,000 miles

7 years or 70,000 miles

8 years or 100,000 miles

10 years or 120,000 miles

12. An indication of how much power can flow into our out of a battery in any given instant versus the amount of energy that the battery can store is called its

SoC

DoD

C-rate

P/E ratio

Energy density

13  The voltage of an individual fuel cell is typically?

0.3V

0.7V

3V

3.7V

6V

14. The self-discharge rate of all batteries typically doubles with every ____ F increase in temperature

15. The efficiency of fuel cell ranges from:

25-35%

30-45%

40-60%

50-70%

60-80%

16.EV contactors have excellent ___ suppression capabilities

17.The most common BTMSs in Evs are ____ cooing and ____ cooling

20. Cells in battery packs are stacked and joined together from _____

21.A voltaic cell is also known as ____ cell

22. EV batteries should never be charged to more than ___ of their capacity

0.6

0.7

0.8

0.9

0.95

23.One of the main challenges associated with managing lithium-ion batteries is that they have a non-  ___ charge and discharge curve

24. Which of the following is not a characteristic of an ideal EV traction battery

High energy density

Wet cell

High power density

Rechargeable

High ampere hour

25  While the cathode and anode determine the charging and discharging performance of a battery, the ___ and ____ ensure how safely the battery operates

26.Parallel connected batteries ___ than series connected batteries

Charge at the same rate

Charge slower

Charge faster

Have more voltage

Are more dangerous

27. The most expensive component in each battery cell is the

Anode

Cathode

Electrolyte

Separator

Housing

28. A Tesla contractor may have a lifespan of 200,000 cycles when switching less than ____ A, but this drops to about 1000 cycles if it is switching ____

20,100

30,200

50,300

60,400

70,500

29. Lithium polymer cells use a ___ type of enclosure

Foil pouch

Cylindrical

Prismatic

Plastic pouch

ABS

30. The separator in a lithium-ion battery physically separates the anode and cathode, which at the same time allowing maximum ___ conductivity