Test 6

Question 1

Electrolyte is the conducting medium that allows the transfer of ions between battery cell plates.

Answer 1

True

Question 2

Charging is the process of a cell or battery converting chemical energy to electrical energy and delivering current.

Answer 2

False

Question 3

The voltage between battery terminals is highest at the beginning of a discharge cycle and gradually falls.

Answer 3

True

Question 4

Self-discharge is the gradual reduction in the state of charge of a battery while at steady-state condition.

Answer 4

True

Question 5

Only flooded open-vent batteries need equalization

Answer 5

True

Question 6

Sulfation increases the electrolyte concentration and the available active material, and therefore the capacity of the cell.

Answer 6

False

Question 7

A secondary battery is a battery that can store and deliver electrical energy but cannot be recharged

Answer 7

False

Question 8

Lead-acid batteries are the most common type of batteries used in PV systems

Answer 8

True

Question 9

Lead-calcium batteries experience less gassing and lower self-discharge rates than lead-antimony batteries.

Answer 9

True

Question 10

Batteries are connected in series by connecting all of the positive terminals together and all of the negative terminals together.

Answer 10

False

Question 11

A(n) ____ is a collective of cells that are contained in the same case and connected together electrically to produce a desired voltage.

Answer 11

battery

Question 12

____ is the condition where essentially no electrical or chemical changes are occuring.

Answer 12

Steady-state

Question 13

The ____ is the percentage of energy remaining in a battery compared to the fully charged capacity.

Answer 13

state of charge

Question 14

____ is the amount of time a fully charged battery system can supply power to system loads without further charging.

Answer 14

Autonomy

Question 15

____ charging is battery charging at a low charge rate that maintains full battery charge by counteracting self-discharge.

Answer 15

Float

Question 16

____ is the ratio of applied charge to the resulting increase in battery charge.

Answer 16

Overcharge

Question 17

____ is a condition of flooded lead-acid cells in which the specific gravity of the electrolyte is greater at the bottom than the top.

Answer 17

Stratification

Question 18

____ batteries are a class of batteries designed for repeated deep-discharge cycle service.

Answer 18

Traction

Question 19

____ electrolyte is electrolyte that is immobilized.

Answer 19

Captive

Question 20

A ____ battery is a battery that uses a combination of plate designs to maximize the desirable characteristics.

Answer 20

hybrid

Question 21

A(n) ____ is an electrode consisting of active material supported by a grid framework.

Answer 21

plate

Question 22

____ is the measure of the electrical storage potential of a battery or cell.

Answer 22

Capacity

Question 23

____ is the process of a cell or battery receiving current and converting the electrical energy into chemical energy.

Answer 23

Charging

Question 24

____ charging is a stage of battery charging following bulk charging that reduces the charge current to maintain the battery voltage at a regulation voltage for a certain period.

Answer 24

Absorption

Question 25

____ is the decomposition of water into hydrogen and oxygen gases as a battery charges.

Answer 25

Gassing

Question 26

____ is the ratio of the density of a substance to the density of water.

Answer 26

Specific gravity

Question 27

Starting, lighting, and ignition (SLI) batteries are a class of batteries designed primarily for ____-discharge cycle service.

Answer 27

shallow

Question 28

A(n) ____ is a substance that causes other substances to chemically react but does not participate in the reaction.

Answer 28

catalyst

Question 29

A(n) ____ is a group of batteries connected together with series and parallel connection to provide a specific voltage, current, and capacity.

Answer 29

battery bank

Question 30

Connecting batteries in series increases system ____.

Answer 30

voltage