Test 3

Question 1

Cost and funding of PV systems are usually the customer’s primary concern.

Answer 1

True

Question 2

A GPS receiver identifies only latitude coordinates.

Answer 2

False

Question 3

PV systems are high-density power generators, so only small surface areas are required to produce appreciable amounts of power.

Answer 3

False

Question 4

It is never advantageous to face an array in a direction other than due south.

Answer 4

False

Question 5

Shading on solar thermal collectors reduces performance by an amount proportional to the level of shading.

Answer 5

True

Question 6

The photographic method of shading analysis compares a panoramic photo of the potential obstructions to a sun path diagram.

Answer 6

True

Question 7

Most inverters can be installed either indoors or outdoors, as long as they are kept dry and have enough space around them for airflow.

Answer 7

True

Question 8

The efficiency of a building envelope is how well it isolates the indoor environment from the outdoor environment.

Answer 8

True

Question 9

Materials, equipment, designs, or installation practices for PV systems are independent of environmental conditions.

Answer 9

False

Question 10

One or more potential array locations must be identified during a site survery.

Answer 10

True

Question 11

Building codes affect PV system ____.

Answer 11

planning, design, and installation. (all of the above)

Question 12

A(n) ____ is a visit to the installation site to assess the site conditions and establish the needs and requirements for the system.

Answer 12

site survey

Question 13

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

Answer 13

sun path

Question 14

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

Answer 14

Magnetic declination

Question 15

The ____ angle is the angle from the horizontal to the top of an obstruction, as viewed from a specific location.

Answer 15

profile

Question 16

For ground-mounted arrays, the installer should evaluate the ____.

Answer 16

terrain, elevations, and soil conditions. (all of the above)

Question 17

A(n) ____ is a collection of information about a facility’s or customer’s energy use.

Answer 17

energy audit

Question 18

Accurate ___ ranges for a site are particularly important because this significantly affects the operation and performance of modules, batteries, and inverters.

Answer 18

temperature

Question 19

The DC power output of an array during low insolation should provide about ____% of the minimum AC power requirement.

Answer 19

130

Question 20

Energy management includes ____.

Answer 20

the use of automatic controls, adjusting setpoints, and adopting sensible choices in appliance use. (all of the above)

Question 21

Special fall protection equipment or precautions are required when surveying at heights over _____ feet.

Answer 21

6

Question 22

____ are used to measure service voltages, load currents, power, and to check for continuity or nergized circuits.

Answer 22

multimeters

Question 23

The easiest way to measure the slope of a roof for rooftop installation is with a(n) _____ finder.

Answer 23

angle

Question 24

On a compass, true south is found by subtracting the declination from the direction of ____ south.

Answer 24

magnetic

Question 25

The extent of shading at any given location can be determined by comparing the height and location of shading obstructions to the solar ____.

Answer 25

window

Question 26

A(n) ____ layout drawing shows basic building dimensions and locations of major components.

Answer 26

site

Question 27

It is sensible to apply energy ____ measures before installing PV systems because their initial costs and payback periods are substantially less than increasing the size of the PV system.

Answer 27

conservation

Question 28

____ should include performance estimates for monthly and annual energy production.

Answer 28

proposals

Question 29

The ____ orientation of the roof is the direction, such as southwest or due south, that the sloped surface faces.

Answer 29

azimuth

Question 30

Predesigned systems offered by major suppliers and ____ can simplify planning and preparation.

Answer 30

integrators