7
1-47. If a fluorescent light is to be attached to a
branch circuit, which of the following
splices should normally be used?
1. Staggered splice
2. Knotted tap joint
3. Western Union splice
4. Fixture joint
1-48. When is a knotted tap joint normally
used?
1. When a branch circuit is joined to a
continuous wire (main wire)
2. When a Western Union splice
would be too bulky
3. When a lighting fixture is joined to
a branch circuit
4. When a wire nut is used to complete
the joint
1-49. Which of the following splices is NOT
butted?
1. Fixture joint
2. Rattail joint
3. Knotted tap joint
4. Western Union splice
1-50. Why is friction tape used over a splice?
1. To provide a protective covering
over the rubber tape
2. To provide maximum insulation to
the splice
3. To prevent shock when latex rubber
is used
4. To reduce the amount of rubber tape
required
1-51. Why would you use a crimped terminal
instead of a soldered terminal?
1. Connections can be made more
rapidly
2. Less operator skill is required
3. Connections are more uniform in
construction
4. Each of the above
1-52. When noninsulated splices and terminal
lugs are insulated, what types of
insulation are most commonly used?
1. Rubber tape and friction tape
2. Spaghetti and heat-shrinkable tubing
3. Spaghetti and friction tape
4. Rubber tape and heat shrinkable
tubing
1-53. When heat-shrinkable tubing is used,
what is the maximum temperature to
which the wire should be subjected?
1. 180ºF
2. 220ºF
3. 300ºF
4. 340ºF
1-54. When a large aluminum terminal lug or
splice is installed, why is it NOT
necessary to clean the aluminum wire?
1. It is done automatically by the
tubing
2. The wire is cleaned by the abrasive
compound in the lug or splice
3. Oxide film does not form on
aluminum
4. The insulation used provides the
necessary cleaning agent
1-55. When aluminum terminals lugs or splices
are installed, which of the following tools
is generally recommended for use?
1. Pliers
2. Power crimping tool
3. Hand crimping tool
4. Vise grips
