Test 10

Question 1

Arrays are most often installed on roofs.

Answer 1

True

Question 2

Active cooling means are practical for cooling flat-plate modules.

Answer 2

False

Question 3

Modules mounted directly on the roof surface increase the heat transfer into a building.

Answer 3

True

Question 4

Since rack mounts use an open, truss like structure, air can circulate freely around the modules and keep them cool.

Answer 4

True

Question 5

Ground-mounted arrays generally offer less flexibility than building-mounted arrays in the location and orientation of arrays.

Answer 5

False

Question 6

A passive tracking mount is an array mounting system that uses nonelectrical means to automatically direct an array toward the sun.

Answer 6

True

Question 7

Single-axis tracking mounts follow the sun exactly as it moves across the sky.

Answer 7

False

Question 8

The allowable withdrawal load is the force required to remove a screw from a material by tensile force only.

Answer 8

True

Question 9

Ground foundations for rack mounts typically include concrete footers.

Answer 9

True

Question 10

Spanning is used with lag screws.

Answer 10

False

Question 11

Installed nominal operating cell temperature (INOCT) for ____-mounted modules is the highest among building mounting systems.

Answer 11

direct

Question 12

A(n) ____ mounting system is an array mounting system that permanently secures modules in a non movable position at a specific tilt angle.

Answer 12

fixed-tilt

Question 13

A ____ mount is a type of fixed- or adjustable-tilt array mounting system with a triangular-shaped structure to increase the tilt angle of the array.

Answer 13

rack

Question 14

A(n) ____ photovoltaic array is a fixed array that replaces conventional building materials with specially designed modules that also perform an architectural function.

Answer 14

building-integrated

Question 15

A ____ mount is a type of array mounting system where modules are installed at an elevation on a pedestal.

Answer 15

pole

Question 16

A(n) ____ mount is an array mounting system that automatically orients the array to the position of the sun.

Answer 16

sun-tracking

Question 17

A ____ load is a static structural load due to the weight of permanent building members, supported structure, and attachments.

Answer 17

dead

Question 18

A ____ load is a dynamic structural load due to periodic motion.

Answer 18

vibration

Question 19

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

Answer 19

Blocking

Question 20

A(n) ___-bolt is a fastener that hooks around a secure support structure and has a threaded end that is used with a nut to secure items.

Answer 20

J

Question 21

Keeping modules and arrays clear of obstructions is the easiest way to promote natural ____.

Answer 21

cooling

Question 22

Arrays mounted directly on buildings can increase ____ transfer into conditioned spaces

Answer 22

heat

Question 23

It is faster and easier to assemble panels or subsystems on the ____ before installing them on the roof.

Answer 23

ground

Question 24

A(n) ____ mount is a type of fixed-tilt array mounting system where modules are supported by a structure parallel to and slightly above the roof surface.

Answer 24

standoff

Question 25

____-mounted PV systems may also contain lights, weather stations, communications equipment, security cameras, or other devices.

Answer 25

Pole

Question 26

A(n) ____ tracking mount is an array mounting system that uses electric motors and gear drives.

Answer 26

active

Question 27

____ corrosion is an electrochemical process that causes electrical current to flow between two dissimilar metals, eventually corroding one of the materials.

Answer 27

Galvanic

Question 28

A(n) ____ load is a dynamic structural load due to the weight of temporary items and people using or occupying the structure.

Answer 28

live

Question 29

____ is an attachment method that relies on the weight of the array, support structure, and ballasting material to hold the array in position.

Answer 29

Self-ballasting

Question 30

The best weather-sealing method uses ____ and rubber boots to seal around roof penetrations.

Answer 30

flashings