LINEMAN APPRENTICE DISTRIBUTION EXAM
QUESTIONS AND ANSWERS
1-1. To finish the phrase, circle the appropriate ANSWER. Transmission
voltage is stepped down to distribution voltage by a ______________________.
Transformers for substations and pole-tops
ANSWER: c) regulator d) step-up transformer A substation transformer
1-2. To finish the phrase, circle the appropriate ANSWER. A consumer receives
electricity at ______________________ voltage in a standard distribution
system.
a) peak b) nominal c) primary
ANSWER d) secondary - d) Secondary
1–3. To finish the following sentence, circle the appropriate ANSWER. A
substation transformer applies the primary distribution voltage to a distribution
system.
b) The voltage at which the client receives their electricity.
c) used on a service area's distribution lines.
d) (a) as well as (c).
e) (b) as well as (c). The answers are (a) and (c).
1. True or False. A transformer increases the amount of usable electricity that
can be delivered to a client, hence improving the overall efficiency of a
distribution system. - ANSWER Untrue
1–5. To finish the phrase, circle the appropriate ANSWER.
______________________ offer a means of rerouting excess current to ground
during high voltage surges.
ANSWER b) surge arresters a) surge destroyers b) surge arresters c) surge
eliminators d) current protectors
2-1. Mark the appropriate ANSWERs. Which three components are present in
the majority of distribution transformers?
a) Primary winding b) Bolts for mounting
c) Fuses d) Secondary winding
, f) Core: A, C, and f answers
2-2. Is it true? In a distribution transformer, the voltage induced in the
secondary winding is typically lower than the voltage delivered to the main
winding. ANSWER: True
2–3. To finish the following sentence, circle the appropriate ANSWER. Typical
distribution transformers look like this:
a) Through connections at the transformer core, the primary voltage is delivered
to the secondary winding.
b) A secondary voltage that is supplied to the customer is created when the
primary distribution voltage is applied to the secondary winding.
c) When a primary voltage is applied to the primary winding, a secondary
winding voltage is induced.
d) Customers receive the principal distribution voltage via the secondary bus.
e) (a) as well as (d) - ANSWER c) When a primary voltage is applied to the
primary winding, a secondary winding voltage is induced.
2. True or Untrue. Distribution transformers can be installed on utility poles
above ground or buried underground. ANSWER: True
3-1. To finish the following sentence, circle the appropriate ANSWER. A
regulator of voltage:
a) keeps the distribution voltage within a predetermined range.
b) changes what it receives in terms of voltage.
c) has the ability to receive, store, and release a charge.
d) provided feeders with power at distribution voltage. ANSWER a) keeps the
distribution voltage within a predetermined range.
3-2. Is it true? When a voltage regulator's primary and secondary windings are
connected in series, the primary winding acts as a component of the secondary
winding. ANSWER: True
3–3. To finish the following sentence, circle the appropriate ANSWER. In a
standard voltage regulator, the primary winding receives voltage via the "load"
connection.
b) The "line" connection is used to supply the regulator with uncontrolled
voltage.
QUESTIONS AND ANSWERS
1-1. To finish the phrase, circle the appropriate ANSWER. Transmission
voltage is stepped down to distribution voltage by a ______________________.
Transformers for substations and pole-tops
ANSWER: c) regulator d) step-up transformer A substation transformer
1-2. To finish the phrase, circle the appropriate ANSWER. A consumer receives
electricity at ______________________ voltage in a standard distribution
system.
a) peak b) nominal c) primary
ANSWER d) secondary - d) Secondary
1–3. To finish the following sentence, circle the appropriate ANSWER. A
substation transformer applies the primary distribution voltage to a distribution
system.
b) The voltage at which the client receives their electricity.
c) used on a service area's distribution lines.
d) (a) as well as (c).
e) (b) as well as (c). The answers are (a) and (c).
1. True or False. A transformer increases the amount of usable electricity that
can be delivered to a client, hence improving the overall efficiency of a
distribution system. - ANSWER Untrue
1–5. To finish the phrase, circle the appropriate ANSWER.
______________________ offer a means of rerouting excess current to ground
during high voltage surges.
ANSWER b) surge arresters a) surge destroyers b) surge arresters c) surge
eliminators d) current protectors
2-1. Mark the appropriate ANSWERs. Which three components are present in
the majority of distribution transformers?
a) Primary winding b) Bolts for mounting
c) Fuses d) Secondary winding
, f) Core: A, C, and f answers
2-2. Is it true? In a distribution transformer, the voltage induced in the
secondary winding is typically lower than the voltage delivered to the main
winding. ANSWER: True
2–3. To finish the following sentence, circle the appropriate ANSWER. Typical
distribution transformers look like this:
a) Through connections at the transformer core, the primary voltage is delivered
to the secondary winding.
b) A secondary voltage that is supplied to the customer is created when the
primary distribution voltage is applied to the secondary winding.
c) When a primary voltage is applied to the primary winding, a secondary
winding voltage is induced.
d) Customers receive the principal distribution voltage via the secondary bus.
e) (a) as well as (d) - ANSWER c) When a primary voltage is applied to the
primary winding, a secondary winding voltage is induced.
2. True or Untrue. Distribution transformers can be installed on utility poles
above ground or buried underground. ANSWER: True
3-1. To finish the following sentence, circle the appropriate ANSWER. A
regulator of voltage:
a) keeps the distribution voltage within a predetermined range.
b) changes what it receives in terms of voltage.
c) has the ability to receive, store, and release a charge.
d) provided feeders with power at distribution voltage. ANSWER a) keeps the
distribution voltage within a predetermined range.
3-2. Is it true? When a voltage regulator's primary and secondary windings are
connected in series, the primary winding acts as a component of the secondary
winding. ANSWER: True
3–3. To finish the following sentence, circle the appropriate ANSWER. In a
standard voltage regulator, the primary winding receives voltage via the "load"
connection.
b) The "line" connection is used to supply the regulator with uncontrolled
voltage.
