2002 NEC Electrician Practice Test 5

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2005 NEC Electrician Practice Test 5

Course Name: 2005 NEC Review Quiz Number: No. 5 Teacher: electrician.com Teacher's Home Page: http://www.electrician.com Teacher's Email: electrician@electrician.com

No. of Questions= 20

1. The circuit conductor that is defined as being intentionally grounded is the _______ conductor.



a)
grounding

b)
grounded

c)
equipment grounding

d)
grounding electrode

2. Class II location are those that are hazardous because of the presence of ________.



a)
ignitable vapors

b)
ignitable fibers

c)
combustible dust

d)
combustible liquids

3. If three resistors with values 5, 10, and 15 ohms respectively are connected in parallel, the combined total resistance is ____ ohms. Select the closest answer.



a)
0.4

b)
2.3

c)
2.7

d)
30.0

4. The wiring in a 200 foot long branch circuit measures a total resistance of 0.5 ohms. What is the resistance per 1,000 feet?



a)
0.5 ohms

b)
1.0 ohms

c)
2.5 ohms

d)
5.0 ohms

5. The maximum total voltage drop on both feeders and branch circuits to the farthest outlet should not exceed ____ percent of the supply voltage.



a)
2

b)
3

c)
4

d)
5

6. The maximum total voltage drop on a feeder and branch circuit to the farthest outlet should not exceed _____ percent.



a)
2

b)
5

c)
4

d)
3

7. For dwelling units, the Code requires a minimum of _______ for the kitchen small appliance load.



a)
one 15 ampere

b)
two 15 ampere circuits

c)
one 20 ampere circuit

d)
two 20 ampere circuits

8. Generally, equipment grounding conductors No. 6 and smaller shall be identified by ______. (select best answer)



a)
green color unless it is bare

b)
green color with one or more yellow stripes unless it is bare

c)
bare conductor

d)
bare or Individually covered or insulated equipment grounding conductors shall have a continuous outer finish that is either green or green with one or more yellow stripes except as permitted in this section.

e)
All of the above

9. Rod and pipe grounding electrodes shall not be less than ____ feet in length.



a)
6

b)
7

c)
8

d)
10

10. Every dining room of a dwelling unit requires receptacle outlets to be installed so that no point along the floor line in any wall space more than _____ feet, measured horizontally, from an outlet.



a)
6

b)
7

c)
8

d)
10

11. Open runs of Listed liquidtight flexible nonmetallic conduit installed in lengths longer then ____ feet shall be secured every ____ feet.



a)
6, 3

b)
6, 4 1/2

c)
6, 66

d)
10, 10

12. Generally, noncurrent-carrying metal parts of electrical equipment should be kept at least ____ feet away from lightning rod conductors in air and 3 feet from lightning conductors in concrete, or shall be bonded to the lightning conductors.



a)
3

b)
4

c)
5

d)
6

13. Branch-circuit conductors supplying a single motor which operates under continuous duty shall have an ampacity not less than ____ percent of the motor full-load current rating.



a)
100

b)
115

c)
125

d)
140

14. The maximum number of overcurrent devices (other than those provided in the mains) in a single cabinet of a lighting and appliance panelboard shall be ____.



a)
30

b)
36

c)
42

d)
46

15. Where a branch circuit supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum branch-circuit conductor size, before the application of any adjustment or correction factors, shall have an allowable ampacity not less than the noncontinuous load plus ______ percent of the continuous load.



a)
65

b)
80

c)
125

d)
200

16. Liquid-tight flexible metal conduit may be used in _____.



a)
areas that are both exposed and concealed

b)
areas that are subject to physical damage

c)
4 1/2 inch trade size

d)
5 inch trade size

17. The maximum size of flexible metallic tubing that may be used in any construction or installation is _____.



a)
3/8"

b)
1/2"

c)
3/4"

d)
1"

18. Where conductors of less than 600 volts emerge from the ground they shall be protected by enclosures or raceways that extend from below grade to a point at least ____ feet above finished grade.



a)
4

b)
6

c)
8

d)
10

19. The total number of quarter bends allowed in one run of rigid nonmetallic conduit shall not exceed ____.



a)
2

b)
3

c)
4

d)
5

20. Where ungrounded conductors of minimum size No. _____ or larger enter a raceway in a cabinet, the conductors shall be protected by an insulated fitting.



a)
3

b)
4

c)
6

d)
5

Go to top of quiz
© 2005 Gerald Newton

1.	The circuit conductor that is defined as being intentionally grounded is the _______ conductor.

a)		grounding
b)		grounded
c)		equipment grounding
d)		grounding electrode


2.	Class II location are those that are hazardous because of the presence of ________.

a)		ignitable vapors
b)		ignitable fibers
c)		combustible dust
d)		combustible liquids


3.	If three resistors with values 5, 10, and 15 ohms respectively are connected in parallel, the combined total resistance is ____ ohms. Select the closest answer.

a)		0.4
b)		2.3
c)		2.7
d)		30.0


4.	The wiring in a 200 foot long branch circuit measures a total resistance of 0.5 ohms. What is the resistance per 1,000 feet?

a)		0.5 ohms
b)		1.0 ohms
c)		2.5 ohms
d)		5.0 ohms


5.	The maximum total voltage drop on both feeders and branch circuits to the farthest outlet should not exceed ____ percent of the supply voltage.

a)		2
b)		3
c)		4
d)		5


6.	The maximum total voltage drop on a feeder and branch circuit to the farthest outlet should not exceed _____ percent.

a)		2
b)		5
c)		4
d)		3


7.	For dwelling units, the Code requires a minimum of _______ for the kitchen small appliance load.

a)		one 15 ampere
b)		two 15 ampere circuits
c)		one 20 ampere circuit
d)		two 20 ampere circuits


8.	Generally, equipment grounding conductors No. 6 and smaller shall be identified by ______. (select best answer)

a)		green color unless it is bare
b)		green color with one or more yellow stripes unless it is bare
c)		bare conductor
d)		bare or Individually covered or insulated equipment grounding conductors shall have a continuous outer finish that is either green or green with one or more yellow stripes except as permitted in this section.
e)		All of the above


9.	Rod and pipe grounding electrodes shall not be less than ____ feet in length.

a)		6
b)		7
c)		8
d)		10


10.	Every dining room of a dwelling unit requires receptacle outlets to be installed so that no point along the floor line in any wall space more than _____ feet, measured horizontally, from an outlet.

a)		6
b)		7
c)		8
d)		10


11.	Open runs of Listed liquidtight flexible nonmetallic conduit installed in lengths longer then ____ feet shall be secured every ____ feet.

a)		6, 3
b)		6, 4 1/2
c)		6, 66
d)		10, 10


12.	Generally, noncurrent-carrying metal parts of electrical equipment should be kept at least ____ feet away from lightning rod conductors in air and 3 feet from lightning conductors in concrete, or shall be bonded to the lightning conductors.

a)		3
b)		4
c)		5
d)		6


13.	Branch-circuit conductors supplying a single motor which operates under continuous duty shall have an ampacity not less than ____ percent of the motor full-load current rating.

a)		100
b)		115
c)		125
d)		140


14.	The maximum number of overcurrent devices (other than those provided in the mains) in a single cabinet of a lighting and appliance panelboard shall be ____.

a)		30
b)		36
c)		42
d)		46


15.	Where a branch circuit supplies continuous loads or any combination of continuous and noncontinuous loads, the minimum branch-circuit conductor size, before the application of any adjustment or correction factors, shall have an allowable ampacity not less than the noncontinuous load plus ______ percent of the continuous load.

a)		65
b)		80
c)		125
d)		200


16.	Liquid-tight flexible metal conduit may be used in _____.

a)		areas that are both exposed and concealed
b)		areas that are subject to physical damage
c)		4 1/2 inch trade size
d)		5 inch trade size


17.	The maximum size of flexible metallic tubing that may be used in any construction or installation is _____.

a)		3/8"
b)		1/2"
c)		3/4"
d)		1"


18.	Where conductors of less than 600 volts emerge from the ground they shall be protected by enclosures or raceways that extend from below grade to a point at least ____ feet above finished grade.

a)		4
b)		6
c)		8
d)		10


19.	The total number of quarter bends allowed in one run of rigid nonmetallic conduit shall not exceed ____.

a)		2
b)		3
c)		4
d)		5


20.	Where ungrounded conductors of minimum size No. _____ or larger enter a raceway in a cabinet, the conductors shall be protected by an insulated fitting.

a)		3
b)		4
c)		6
d)		5