Gas Technician 2 Exam
Fuses serving motor circuits should be:
a) Quick blow type
b) Time delay type
c) Oversized by 2.5%
d) Oversized by 3.5% - ANS-b) Time delay type.
As the length of on elecincal run increases, it may be necessary to;
a) increase the wire size,
b) Use a dilerent moe o, conducior
c)Decreose the use size
d) increase the fuse size - ANS-a) Increase the wire size
6. Millivolt wiring should be isolated from line voliage wiring because:
a) The line voltage wire will overheat the low voltage wiring.
b) The resistance of the millivolt wiring will be increased.
c)The current in the low voltage wire will be reduced to that of the millivolt wire,
d) The line vollage will induce a volioge into the millivolt wiring - ANS-d) The line vollage
will induce a volioge into the millivolt wiring
7. Which tool is used to determine if the windings on on electric motor have shorted?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter - ANS-c) Ohmmeter
8. On on electrical schematic diagram, the safety controls are typically drawn;
a) To the right of the loads.
b) Above Ihe loads
c)Below the loads
d) To the left of the loads - ANS-d) To the left of the loads
, 9. Which of the following types of wire must be used in damp locations?
a) NMD
b) NNW
c) LVT
d) BX - ANS-b) NMW
10. On an electrical schematic, all operating controls ore drown:
o) In their energized positions.
b) in their de-energized positions,
c) Normally closed,
d) Normally open. - ANS-d) Normally open
11. An inline ammeter is connected:
a) In series with the device being checked.
b) In porallel with the device being checked.
c) With the system power off
d) Across the load. - ANS-a) In series with the device being checked
12. As the length of a conductor increases, the voltage drop along the conductor:
a) Increases
b) Decreases.
c) Remains the same
d) Should be as flexiole as possible - ANS-a) Increases
13. When a new appliance is to be installed in a typical residential basement and the
supply wiring to it is to be concealed, which of the tollowing types of wire is acceptable,
and most cost effective:
a) NMW
B) NMD
c) BX
d) LVT - ANS-B) NMD
14,When checking a circuit of unknown voltage using an analog meter with 0-30V.
0-125V. 0-250V. and 0-600V, which scale should be selected?
Fuses serving motor circuits should be:
a) Quick blow type
b) Time delay type
c) Oversized by 2.5%
d) Oversized by 3.5% - ANS-b) Time delay type.
As the length of on elecincal run increases, it may be necessary to;
a) increase the wire size,
b) Use a dilerent moe o, conducior
c)Decreose the use size
d) increase the fuse size - ANS-a) Increase the wire size
6. Millivolt wiring should be isolated from line voliage wiring because:
a) The line voltage wire will overheat the low voltage wiring.
b) The resistance of the millivolt wiring will be increased.
c)The current in the low voltage wire will be reduced to that of the millivolt wire,
d) The line vollage will induce a volioge into the millivolt wiring - ANS-d) The line vollage
will induce a volioge into the millivolt wiring
7. Which tool is used to determine if the windings on on electric motor have shorted?
a) Voltmeter
b) Ammeter
c) Ohmmeter
d) Wattmeter - ANS-c) Ohmmeter
8. On on electrical schematic diagram, the safety controls are typically drawn;
a) To the right of the loads.
b) Above Ihe loads
c)Below the loads
d) To the left of the loads - ANS-d) To the left of the loads
, 9. Which of the following types of wire must be used in damp locations?
a) NMD
b) NNW
c) LVT
d) BX - ANS-b) NMW
10. On an electrical schematic, all operating controls ore drown:
o) In their energized positions.
b) in their de-energized positions,
c) Normally closed,
d) Normally open. - ANS-d) Normally open
11. An inline ammeter is connected:
a) In series with the device being checked.
b) In porallel with the device being checked.
c) With the system power off
d) Across the load. - ANS-a) In series with the device being checked
12. As the length of a conductor increases, the voltage drop along the conductor:
a) Increases
b) Decreases.
c) Remains the same
d) Should be as flexiole as possible - ANS-a) Increases
13. When a new appliance is to be installed in a typical residential basement and the
supply wiring to it is to be concealed, which of the tollowing types of wire is acceptable,
and most cost effective:
a) NMW
B) NMD
c) BX
d) LVT - ANS-B) NMD
14,When checking a circuit of unknown voltage using an analog meter with 0-30V.
0-125V. 0-250V. and 0-600V, which scale should be selected?
