G2 Prep Test UPDATED Actual Exam Questions and CORRECT Answers
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Course
G2 Prep
Institution
G2 Prep
G2 Prep Test UPDATED Actual Exam
Questions and CORRECT Answers
What is the equivalent length of a NPS 2" Schedule 40, 90* threaded elbow - CORRECT
ANSWER- 5.17 Feet
What diameter and length of a dirt pocket is required when a drop line is 3" in diameter -
CORRECT ANSWER- 2" diameter/3" long
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G2 Prep Test UPDATED Actual Exam
Questions and CORRECT Answers
What is the equivalent length of a NPS 2" Schedule 40, 90* threaded elbow - CORRECT
ANSWER✔✔- 5.17 Feet
What diameter and length of a dirt pocket is required when a drop line is 3" in diameter -
CORRECT ANSWER✔✔- 2" diameter/3" long
When sizing a branch line, what is the minimum size of job fabricated welded fitting that can
be used on a NPS 6" gas supply header - CORRECT ANSWER✔✔- 2" NPS
The instrument used to determine the polarity of an appliance power supply is the -
CORRECT ANSWER✔✔- Voltmeter
Direct current travels - CORRECT ANSWER✔✔- In one direction
A 120V power supply for a residential electrical circuit is taken from the - CORRECT
ANSWER✔✔- Load side of one branch circuit breaker and neutral lug
A hard sharp pilot flame indicates - CORRECT ANSWER✔✔- The orifice is too small
Which tool is used to determine if the windings on an electric motor have shorted -
CORRECT ANSWER✔✔- Voltmeter
When the voltage has been determined to be approximately 120V, which scale on an analog
meter should be selected for the most accuracy - CORRECT ANSWER✔✔- 0-125V
One millivolt is equal to - CORRECT ANSWER✔✔- 1/1000 volt
When checking a circuit of an unknown voltage using an analog meter with 0-30V, 0-125V,
0-250V and 0-600V which scale should be selected - CORRECT ANSWER✔✔- 0-600 V
, The 24 V control circuit supply for a residential gas furnace comes from a - CORRECT
ANSWER✔✔- 120/24 step down transformer
As gauge number of a conductor increases, it's current carrying capacity - CORRECT
ANSWER✔✔- Decreases
The instrument used to determine potential difference in an electrical circuit is the -
CORRECT ANSWER✔✔- Voltmeter
The open circuit test reading of a thermocouple should be in the range of - CORRECT
ANSWER✔✔- 25-30 mV
As the diameter of a wire increase, it's resistance - CORRECT ANSWER✔✔- decreases
Millivolt wiring should be isolated from line voltage wiring because - CORRECT
ANSWER✔✔- The line voltage will induce a voltage into the millivolt wiring
A schematic diagram is used to - CORRECT ANSWER✔✔- Indicate how the system works
A thermopile or power pile generates - CORRECT ANSWER✔✔- Hundreds of Millivolts
(up to 750 mV)
An operating aqua stat is what type of control - CORRECT ANSWER✔✔- Normally closed
The resistance of a heating thermistor does what as its temperature rises - CORRECT
ANSWER✔✔- Decreases
An intermittent pilot is present - CORRECT ANSWER✔✔- From the time there is a call for
heat until the call has ended
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