Question 1

Underground service conductors are defined as the underground conductors between the service point and the ____ to the service-entrance conductors in a terminal box.

Accepted Answer

A)   first interior branch
B)   first point of connection
C)   primary junction
D)   secondary branchE) A) and B)
F) B) and D)

Question 2

Type USE cable used for service laterals can ___.

Accepted Answer

A)   be contained in a raceway
B)   be locally grounded
C)   emerge aboveground at outside terminations
D)   be indirectly buriedE) B) and C)
F) A) and D)

Question 3

Voltage between overhead conductors does not exceed ____ volts.

Accepted Answer

A)   100
B)   200
C)   300
D)   400E) A) and B)
F) B) and C)

Question 4

Overhead service conductors, accessible only to pedestrian traffic, must have a minimum ____-ft vertical clearance above finished grade.

Accepted Answer

A)   6
B)   8
C)   10
D)   12E) A) and B)
F) B) and D)

Question 5

Panelboards shall be mounted in cabinets, cutout boxes, or identified enclosures and shall be ____.

Accepted Answer

A)   removable
B)   drop down
C)   dead front
D)   metallicE) A) and C)
F) A) and B)

Question 6

Working space illumination shall not be ____.

Accepted Answer

A)   controlled by a switch plate
B)   applied via a branch circuit
C)   controlled by automatic means only
D)   located along a bearing wallE) A) and D)
F) C) and D)

Question 7

Splices in wire-type grounding electrode conductors are acceptable only if by means of irreversible compression-type connectors (listed as grounding and bonding equipment)  or by the ____.

Accepted Answer

A)   endothermic welding process
B)   exothermic welding process
C)   cold fusion
D)   hot spark techniqueE) B) and D)
F) All of the above B

Question 8

The radius of the curve of the inner edge of any bend in service-entrance cable must be at least ____ times the diameter of the cable.

Accepted Answer

A)   two
B)   three
C)   four
D)   fiveE) All of the above
F) A) and B)

Question 9

Main bonding jumpers and system bonding jumpers must be made of ____ or other corrosion-resistant material.

Accepted Answer

A)   aluminum
B)   stainless steel
C)   sheathed aluminum
D)   copperE) All of the above
F) C) and D)

Question 10

Conductors must have a vertical clearance of at least ____ ft above the roof surface.

Accepted Answer

A)   2
B)   4
C)   6
D)   8E) C) and D)
F) A) and D)

Question 11

Two to ____ circuit breakers or sets of fuses are acceptable as the overcurrent device to provide overload protection.

Accepted Answer

A)   three
B)   four
C)   six
D)   eightE) A) and B)
F) None of the above

Question 12

The ampere rating of any circuit breaker rated at ____ amperes or less, and 1000 volts or less, must be molded, stamped, etched, or similarly marked into the handle or escutcheon area.

Accepted Answer

A)   75
B)   100
C)   125
D)   150E) None of the above
F) A) and D)

Question 13

Conductor sizes are expressed in American Wire Gage (AWG)  or in ____.

Accepted Answer

A)   circular mils
B)   copper gauge units
C)   diameter in inches
D)   millimeters squaredE) C) and D)
F) A) and C)

Question 14

Service-entrance and overhead service conductors shall be arranged so that ____.

Accepted Answer

A)   lightening rods will extend above them
B)   water shall not enter the service raceway or equipment
C)   sealed service head is not exposed
D)   the main body is supported by rigid mastingE) A) and D)
F) A) and C)

Question 15

Circuit breakers must have a voltage rating (clearly marked)  ____ voltage.

Accepted Answer

A)   no more than the nominal system
B)   within a predetermined range
C)   no less than a predetermined range
D)   no less than the nominal systemE) None of the above
F) B) and D)

Question 16

Type ____ cable can be formed in a gooseneck and taped with a self-sealing weather-resistant thermoplastic.

Accepted Answer

A)   SL
B)   ME
C)   SE
D)   WEE) B) and D)
F) B) and C) C

Question 17

Cartridge fuses and fuseholders are classified according to ____.

Accepted Answer

A)   voltage and amperage ranges
B)   ampere ranges and melt-down
C)   wattage or heat capacity
D)   voltage rangesE) A) and B)
F) A) and C)

Question 18

Entrance cables must be supported within ____ in. of every raceway or enclosure connection.

Accepted Answer

A)   6
B)   12
C)   18
D)   24E) A) and C)
F) C) and D) B

Question 19

A one-family dwelling service disconnecting means must have a minimum rating of ____.

Accepted Answer

A)   120 amperes, 4-wire
B)   100 amperes, 2-wire
C)   100 amperes, 3-wire
D)   120 amperes, 3-wireE) B) and C)
F) A) and D)

Question 20

Circuit breakers and fuses can be connected in parallel provided they are ____.

Accepted Answer

A)   rated at 100 amperes or less
B)   installed along the main feeder line
C)   rated at 100 amperes or more
D)   factory assembled and listed as a unitE) B) and D)
F) A) and B)

Exam 9: Services and Electrical Equipment

Underground service conductors are defined as the underground conductors between the service point and the ____ to the service-entrance conductors in a terminal box.

Correct AnswerverifiedShow Answer

Type USE cable used for service laterals can ___.

Correct AnswerverifiedShow Answer

Voltage between overhead conductors does not exceed ____ volts.

Correct AnswerverifiedShow Answer

Overhead service conductors, accessible only to pedestrian traffic, must have a minimum ____-ft vertical clearance above finished grade.

Correct AnswerverifiedShow Answer

Panelboards shall be mounted in cabinets, cutout boxes, or identified enclosures and shall be ____.

Correct AnswerverifiedShow Answer

Working space illumination shall not be ____.

Correct AnswerverifiedShow Answer

Splices in wire-type grounding electrode conductors are acceptable only if by means of irreversible compression-type connectors (listed as grounding and bonding equipment) or by the ____.

Correct AnswerverifiedB

The radius of the curve of the inner edge of any bend in service-entrance cable must be at least ____ times the diameter of the cable.

Correct AnswerverifiedShow Answer

Main bonding jumpers and system bonding jumpers must be made of ____ or other corrosion-resistant material.

Correct AnswerverifiedShow Answer

Conductors must have a vertical clearance of at least ____ ft above the roof surface.

Correct AnswerverifiedShow Answer

Two to ____ circuit breakers or sets of fuses are acceptable as the overcurrent device to provide overload protection.

Correct AnswerverifiedShow Answer

The ampere rating of any circuit breaker rated at ____ amperes or less, and 1000 volts or less, must be molded, stamped, etched, or similarly marked into the handle or escutcheon area.

Correct AnswerverifiedShow Answer

Conductor sizes are expressed in American Wire Gage (AWG) or in ____.

Correct AnswerverifiedShow Answer

Service-entrance and overhead service conductors shall be arranged so that ____.

Correct AnswerverifiedShow Answer

Circuit breakers must have a voltage rating (clearly marked) ____ voltage.

Correct AnswerverifiedShow Answer

Type ____ cable can be formed in a gooseneck and taped with a self-sealing weather-resistant thermoplastic.

Correct AnswerverifiedC

Cartridge fuses and fuseholders are classified according to ____.

Correct AnswerverifiedShow Answer

Entrance cables must be supported within ____ in. of every raceway or enclosure connection.

Correct AnswerverifiedB

A one-family dwelling service disconnecting means must have a minimum rating of ____.

Correct AnswerverifiedShow Answer

Circuit breakers and fuses can be connected in parallel provided they are ____.

Correct AnswerverifiedShow Answer

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B

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C

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B

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