Test 14

Question 1

A general start-up procedure begins at the loads and ends at the array.

Answer 1

False

Question 2

Overall system manuals are more likely to be available if the system was designed by an integrator.

Answer 2

True

Question 3

Battery terminals should not be pulled laterally or twisted because internal battery components could be damaged.

Answer 3

True

Question 4

Significantly low specific gravity of individual battery cells indicates cell failure or shorts.

Answer 4

True

Question 5

A refractive index hydrometer is a bulb-type syringe with a float that experiences a buoyant force equivalent to the weight of the displaced elctrolyte.

Answer 5

False

Question 6

A maintenance log is a checklist of all required regular maintenance tasks and their maximum intervals.

Answer 6

False

Question 7

By adding a special temperature sensor to the back surface of a module, cell temperature can be measured.

Answer 7

True

Question 8

A PV system may include both a DC power-distribution system for DC loads and an AC power-distribution system for AC loads.

Answer 8

True

Question 9

Remediation is a troubleshooting step that involves gathering all the relevant system documentation together.

Answer 9

False

Question 10

Some equipment manuals include troubleshooting flow charts to help in determining the possible causes of a problem.

Answer 10

True

Question 11

____ is the starting and operation of a PV system for the first time.

Answer 11

Commissioning

Question 12

Line diagrams, operating procedures, and programming instructions posted near key components can be very helpful during ____.

Answer 12

user training, maintenance, and troubleshooting (all of the above)

Question 13

____ is the separation of the bonded layers of glass and/or plastic encasing the PV cells of a module.

Answer 13

Delamination

Question 14

The electrolyte in flooded, open-vent batteries must be maintained at proper levels by periodically adding ____.

Answer 14

water

Question 15

A ____ is an instrument used to measure the specific gravity of a liquid.

Answer 15

hydrometer

Question 16

A(n) ____ is a test instrument that indicates battery health by drawing a high discharge current from a battery for a short period.

Answer 16

battery load tester

Question 17

____ is the continuous measurement of electrical, environmental, or battery parameters.

Answer 17

Monitoring

Question 18

Data ___ is the recording and processing of data from a monitoring system.

Answer 18

acquisition

Question 19

____ is a systematic method of investigating the cause of system problems and determining the best solution.

Answer 19

Troubleshooting

Question 20

____ is a troubleshooting step that involves determining which part of the system is not working properly and observing the conditions that may have contributed to the cause.

Answer 20

Observation

Question 21

Interactive PV systems generally require the least ____.

Answer 21

maintenance

Question 22

____ grounding connections usually result from the contact of incompatible materials.

Answer 22

Corroded

Question 23

____ are usually the most maintenance-intensive components in any PV system.

Answer 23

Batteries

Question 24

____ or voltage can be used to estimate battery state of charge in lead-acid batteries.

Answer 24

Specific gravity

Question 25

The ____ index is the amount that a substance bends light that passes through it.

Answer 25

refractive

Question 26

Total battery capacity is equal to the average load current multiplied by the ____ time.

Answer 26

discharge

Question 27

Measuring electrical parameters is the most important type of ____.

Answer 27

monitoring

Question 28

A(n) ____ is the depth of examination into the equipment or processes that compose a system.

Answer 28

troubleshooting level

Question 29

A system is broken down into functional areas called ____.

Answer 29

subsystems

Question 30

____ is a troubleshooting step that is conducted primarily through inspection and testing.

Answer 30

Investigation