Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Photovoltaic Systems > Photovoltaic systems resource guide Posttest > Flashcards

Photovoltaic systems resource guide Posttest Flashcards

1
Q

Over discharge is the condition of a battery state of charge declining to the point where it can no longer supply discharge current without damaging the battery.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

A rack-mounted photovoltaic array is a fixed array that replaces conventional building materials with specially designed modules that also perform an architectural function.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

A grant is a tradable commodity that represents a certain amount of electricity generated from renewable resources.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Fill factor is the ratio of maximum power to the product of the open-circuit voltage and short-circuit current.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Zenith is the point in the sky directly overhead a particular location.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

An authority having jurisdiction is the organization, office, or individual designated by local government with legal powers to administer, interpret, and enforce building codes.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Duty cycle is the percentage of time a load is operating.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Solar declination is the angle between the direction a compass needle points (toward magnetic north) and true geographic north.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Bimodal systems can be employed to manage and optimize utility energy use by utility customers that billed using time-of-use electric rates.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Renewable energy is expected to compose an increasingly larger portion of energy production.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

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

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

A series is a PV device consisting of a number of individual cells connected electrically, laminated, encapsulated, and packaged into a frame.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Sizing PV systems for stand-alone operation involves two sets of calculations.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

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

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Diesel engines are well suited for constant loads, whereas gasoline engines can respond quickly to changing loads.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

A circuit breaker is a protective enclosure used to terminate, combine, and connect various circuits or components together.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

A transformer is a device that transfers energy from one circuit to another through magnetic coupling.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

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

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

The payback period is the amount of time required for the avoided costs from an alternate energy source to match the cost of the chosen energy-production system.

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

A chip is a thin, flat disk or rectangle of base semiconductor material.

A

False

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Capacitors store energy in an electrical field developed by two oppositely charged parallel conductive plates separated by a dielectric (insulating) material.

A

True

22
Q

Working space is the clear space reserved around electrical equipment for the existing equipment and potential future additions.

A

False

23
Q

Blocking is the addition of lumber under a roof surface and between trusses or rafters as supplemental structural support.

A

True

24
Q

An independent power producer is a non-utility large-scale power producer that meets the technical and procedural requirements for interconnection to the utility sytem.

A

False

25
Q

A battery is a collection of cells that are contained in the same case and connected together electrically to produce a desired voltage.

A

True

26
Q

____ radiation is a type of solar radiation.

A

diffuse, albedo, and direct

27
Q

The ____ Listing Mark is accepted by the NEC and the Canadian Electrical Code as evidence of approved equipment.

A

UL

28
Q

____ are usually the customer’s primary concern when considering having PV systems installed.

A

Cost and funding

29
Q

For most PV devices, a high operating temperature significantly reduces ____.

A

voltage

30
Q

A ____ charge controller is a charge controller that limits charging current to a battery system by gradually increasing the resistance of a series element.

A

series-linear

31
Q

The ____ is a multiplication factor for determining the present value of a single future cost for a given discount rate and period.

A

single present value factor

32
Q

Conductor resistance is determined by the ____.

A

conductor material, conductor size, and ambient temperature

33
Q

A(n) ____ is a material that can exhibit properties of both an insulator and a conductor.

A

semiconductor

34
Q

____ protect batteries from over discharge.

A

charge controllers

35
Q

A(n) ____ system is a PV system that can operate in either utility-interactive or stand-alone mode, and uses battery storage.

A

bimodal

36
Q

A(n) ___ keeps voltage and current waveforms in phase.

A

resistive load

37
Q

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

A

parallel

38
Q

At a minimum, a PV permit application should include a detailed ____-line electrical diagram.

A

one

39
Q

____ is a method of simulating waveforms by switching series devices ON and OFF at high frequency and for variable lengths of time.

A

Pulse-width modulation

40
Q

A(n) ____ calculator is used to view the solar window for a particular location for accessing shading.

A

sun path

41
Q

A ____ is a device that converts mechanical energy into electricity by means of electromagnetic induction.

A

generator

42
Q

A ____ agreement is a contract between a utility and a qualifying facility that establishes the terms and conditions for interconnection and the rates or tariffs that apply.

A

qualifying-facility

43
Q

____ systems may be sized according to either the stand-alone methodology or the interactive methodology.

A

bimodal

44
Q

A ____ battery can store and deliver electrical energy but cannot be recharged.

A

primary

45
Q

PV power plants can be located closer to populated areas than can conventional power plants because they do not cause ____ pollution.

A

air, water, or noise

46
Q

____ reduce battery capacity.

A

High discharge rate

47
Q

A ____ is a diode used to pass current around, rather than through, a group of PV cells or modules.

A

bypass diode

48
Q

Article 690 of the NEC includes requirements for ___ in PV systems.

A

equipment grounding, battery storage, and wiring methods (all of the above)

49
Q

A ____ is a rod, plate, or structure that establishes a connection with the earth.

A

grounding electrode

50
Q

A(n) ____ is a bulb-type syringe with a float that experiences a buoyant force equivalent to the weight of the displaced electrolyte.

A

Archimedes hydrometer

Photovoltaic Systems (19 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions