Hybrid Book - Chapter 13

1. A nickel-metal hydride battery can store about ___ times as much energy as a lead-acid battery.

Two

Three

Four

Five

2. The terminal voltage of NiMH batteries cannot be used to determine SOC because ___.

Terminal voltage stays constant throughout a discharge

Resistance constantly changes

Ambient temperature causes erratic behavior

Terminal voltage has no relationship with SOC

3. The NiMH battery is called an alkaline storage battery because of its use of alkaline ___ electrolyte.

Potassium hydroxide (KOH)

Sodium hydroxide (NaOH)

Sulfuric acid (H2SO4)

Metal hydroxide (MOH)

4. The electrolyte solution used in a nickel-metal hydride battery module is a combination of ___ and water.

Sulfuric acid

Bromide

Boron nitrate

Potassium hydroxide

5. A NiMH battery does not included ___ in its design.

Flooded electrolyte

Positive plates

Negative plates

KOH electrolyte

6. A NiMH cell uses ___ to prevent pressure buildup that may result from gases generated after the end of the change process.

Hydrogen storage

Self-discharge

Overcharging

Oxygen recombination

7. The cells of a nickel-metal hydride battery can lose significant capacity if the battery is ___.

Stored at less than 50% capacity

Severely undercharged

Connected in series

Severely overcharged