Quiz #7

Question 1

Incandescent lamps are classified according to \_\_\_\_\_\_\_\_.
A   shape of bulb and type of service
B   size and style of base
C   operating voltage and wattage
D   all of the above

Answer 1

D all of the above

Question 2

Which of the following components are used to assemble a fluorescent lighting system?
A   lamp
B   starter
C   ballast
D   all of the above

Answer 2

D all of the above

Question 3

When a fluorescent lamp has reached the end of its useful life, it should be replaced immediately. If not, what condition could the resultant flashing cause?

Answer 3

damaging the lamps starter and ballast circuit

Question 4

During the start-up of the circuit shown in figure “B” of the illustration, it is noted that the ends of component “4” remain lighted but the tube does not illuminate. What is likely the cause of this problem? EL-0081

Answer 4

component “5” contacts are stuck closed

Question 5

What is represented by the two parallel lines within components “3” and “5” of the circuit shown in figure “C” of the illustration?

Answer 5

An iron core

Question 6

When changing out component “B” of the circuit shown in the illustration, it is important to know that
__________.

Answer 6

it must match the circuit voltage and component “C” wattage

Question 7

The illustration shows a fluorescent light fixture. The ends of the lamp alternately glow and become dark, but the tube will not light. The most probable cause is that __________. EL-0081

Answer 7

component “A” is shorted and therefore unable to produce the high voltage required to start the lamp

Question 8

When changing out component “B” of the circuit shown in the illustration, it is important to know that __________. EL-0081

Answer 8

it must match the circuit voltage and component “C” wattage

Question 9

Which component of the circuit shown in the illustration is the lamp? EL-0081

Answer 9

C

Question 10

Which of the listed types of lighting circuits is illustrated in the diagram shown? EL-0081

Answer 10

Standard fluorescent

Question 11

What is indicated by gradual blackening at the ends of component “C” shown in the illustration? EL-0081

Answer 11

The tube is nearing the end of its useful life

Question 12

The purpose of the capacitor within component “B” of the circuit shown in the illustration is to __________. EL-0081

Answer 12

prolong the life of the component’s contacts

Question 13

Which component of the circuit shown in the illustration is the starter? EL-0081

Answer 13

B

Question 14

During start-up of the circuit shown in the illustration, it is noted that the ends of component “C” alternately glow and become dark without the tube illuminating. The most probable cause for this is that __________. EL-0081

Answer 14

component “A” is shorted and therefore unable to produce the high voltage required to start the lamp

Question 15

When maintaining the circuit shown in the illustration, what dangers are associated with component “C” should it become broken? EL-0081
A Glass fragments may cut a person’s skin.
B The contained mercury vapor is highly toxic.
C The inside coating of phosphor is highly
poisonous.
D All of the above.

Answer 15

D All of the above.

Question 16

Which component of the circuit shown in the illustration is the ballast? EL-0081

Answer 16

A

Question 17

What is represented by the solid dots within components “B” and “C” of the diagram shown in the illustration? EL-0081

Answer 17

The particular components contain a gas such as neon or argon.

Question 18

When a fluorescent lamp fails to light, the trouble can be in the \_\_\_\_\_\_\_\_\_\_.
A   lamp 
B   starter 
C   ballast 
D   all of the above

Answer 18

D all of the above