Question 1

What is the main factor effecting the power output of a solar cell?

Accepted Answer

The power output of a solar cell depends upon the intensity of light received.

Question 2

In the case of wind turbines, grounding is not necessary for the wind machine tower nor the wind electric system.

Accepted Answer

Grounding is necessary for both the wind machine tower and the wind electric system to protect against lightning strikes and to ensure electrical safety.

Question 3

Flame detectors are required by codes.

Accepted Answer

Flame detectors are not universally required by codes; requirements depend on specific industry standards, regulations, and the particular application or environment.

Question 4

Photovoltaic cells are generally connected in ____________________to obtain the desired output voltage.

Accepted Answer

The answer of Photovoltaic cells are generally connected in ____________________to...

Question 5

A(n) ____________________ can be used to convert direct current to alternating current.

Accepted Answer

The answer of A(n) ____________________ can be used to convert...

Question 6

___________________ are a type activated by visible light, light invisible to human eye, or flame flicker.

Accepted Answer

The answer of ___________________ are a type activated by visible...

Question 7

When is equipment ground-fault protection required?

Accepted Answer

The answer of When is equipment ground-fault protection required?...

Question 8

____________________are installed to prevent toxic vapors from being moved from one part of the building to another.

Accepted Answer

The answer of ____________________are installed to prevent toxic vapors from...

Question 9

The boundary between the n-type and p-type semiconductors is called a tap.

Accepted Answer

The boundary between the n-type and p-type semiconductors is called a p-n junction, not a tap.

Question 10

What is required in order for a photovoltaic system to maintain a constant power supply?

Accepted Answer

The answer of What is required in order for a...

Question 11

The typical output of a small wind turbine is ____________________ current.

Accepted Answer

The answer of The typical output of a small wind...

Question 12

Solar photovoltaic devices are comprised of which two types of semiconductors?

Accepted Answer

The answer of Solar photovoltaic devices are comprised of which...

Question 13

What happens when light penetrates the semiconducting materials of solar photovoltaic systems?

Accepted Answer

The answer of What happens when light penetrates the semiconducting...

Question 14

The wiring for emergency electrical systems is required to be run independently from normal power and lighting circuits.

Accepted Answer

Emergency electrical systems are required to be wired independently from normal power and lighting circuits to ensure they remain operational in the event of a failure in the normal power supply. This separation is crucial for maintaining safety and functionality during emergencies.

Question 15

The ___________________ process was first discovered in the year 1839.

Accepted Answer

The answer of The ___________________ process was first discovered in...

Question 16

A typical fuel cell power system produces a constant supply of electricity day and night.

Accepted Answer

A fuel cell power system produces electricity through an electrochemical reaction, which is not affected by day or night.

Question 17

What prevents the electrons from traveling back across the junction to the p-type semiconductor in solar photovoltaic systems?

Accepted Answer

The answer of What prevents the electrons from traveling back...

Question 18

Solid-state electronic devices are made of ____________________ materials such as silicon crystals containing an impurity that gives them an apparent charge, either positive or negative.

Accepted Answer

The answer of Solid-state electronic devices are made of ____________________...

Question 19

A(n) ____________________ is an electrochemical device that converts hydrogen and oxygen into electricity, water, and heat.

Accepted Answer

The answer of A(n) ____________________ is an electrochemical device that...

Question 20

What are the two types of duct detectors?

Accepted Answer

The answer of What are the two types of duct...

Quiz 11: Emergency and Alternate Power Systems