OPEN BOOK EXAM 9

A spacing of not less than _____ shall be maintained between neon tubing and the nearest surface, other than its support.

• 1/4"

• 1/2"

• 3/8"

• 5/16"

An autotransformer starter shall provide ______.        

 I. an "off position"     II. a running position     III. at least one starting position

• I only

• II only

• I and II

• I, II and III

Water heaters having a capacity of ____ gallons or less shall have a branch circuit rating not less than 125% of the rating of the water heater.

• 60

• 75

• 90

• 120

Where used outside, aluminum or copper-clad aluminum grounding conductors shall not be installed within ___ inches of earth.

• 224

• 18

• 30

• 36

Time switches, flashers, and similar devices where mounted so they are accessible only to qualified persons and so located in an enclosure that any energized parts within ____ of the manual adjustment or switch are covered by suitable barriers.

• 4"

• 6"

• 12"

• 18"

 

Electrical nonmetallic tubing shall be clearly and durably marked at least every ___ feet.

• 3

• 6

• 8

• 10

______ switches shall be used for capacitor switching.

• Isolation

• Group-operated

• Shunt

• High-voltage

The minimum radius for a bend of 1" rigid conduit with three #10 TW conductors is _____ inches.

• 6

• 11

• 5 3/4

• none of these

Where devices containing a disconnecting means are mounted out of reach, suitable means shall be provided to operate the disconnecting means from the floor. Which of the following is permitted?

• devices cannot be mounted out of reach

• ladders

• sticks

• no method is permitted

The minimum size of a copper equipment grounding conductor required for equipment connected to a 40 amp circuit is ____.

• #12

• #14

• #8

• #10