NHIE Code /AHIT Exam with all Correct & 100% Verified
Answers |Actual Complete Exam |Already Graded A+
The minimum size calculation for a room safely containing an unvented appliance is _____.
10 square feet of volume for every 20 Btu/h.
1 cubic foot of volume for every 20 Btu/h
1 square foot of volume for every 20 Btu/h.
There is no minimum size calculation. ✔Correct Answer-1 cubic foot of volume for every 20
Btu/h
Whole house fans rely on _____.
an adequate amount of ventilation in the attic to effectively exhaust
photovoltaic cells to power them
regular monthly changing of their filters
winter weather to provide comfort ✔Correct Answer-An adequate amount of ventilation in
the attic to effectively exhaust
Why do copper pipes turn green at solder joints?
improperly brazed joints
improperly welded joints
improper soldering, too much flux left on piping
water leaks ✔Correct Answer-Improper soldering, too much flex left on piping
A material with a high resistance would be a _____.
good conductor
good insulator
good neutral wire
good transformer ✔Correct Answer-Good insulator
Vented and unvented room heaters _____.
are never used in small homes or seasonal cabins
can be connected to ductwork to serve adjoining rooms
have no vertical flue to the exterior
use radiation, convection, and/or a fan to distribute heat throughout the room ✔Correct
Answer-Use radiation, convection, and/or a fan
Which of the following vents is normally controlled by a thermostat?
, power ventilator
ridge vent
roof-top vent
turbine vent ✔Correct Answer-Power ventilator
When testing two-slot receptacles with the neon bulb tester, which of the following would show
reversed polarity?
hot and neutral slots tested, and the bulb lights
hot slot and cover plate screw tested, and the bulb lights
neutral and hot slots tested, and the bulb doesn't light
neutral slot and cover plate screw tested, and the bulb lights ✔Correct Answer-Neutral slot
and cover plate screw tested, and bulb lights
Where will the oil filter be located in the oil supply line?
at the top of the oil tank
between the tank and the oil burner
in the heating unit
on the exterior fill pipe ✔Correct Answer-Between tank and oil burner
When the solvent in paint evaporates too quickly, what can be the result?
alligatoring
chalking
cracking
crazing ✔Correct Answer-Alligatoring
How does compression act on structural members?
It bends them.
It pulls at the members and makes them longer.
It pushes at the members and makes them shorter.
It twists them. ✔Correct Answer-It pushes at the members and makes them shorter
The maximum thickness of a mortar joint used with a firebrick inside the hearth is _____.
1/2 inch
1/4 inch
5/8 inch
not a problem because it does not matter ✔Correct Answer-1/4 inch
Answers |Actual Complete Exam |Already Graded A+
The minimum size calculation for a room safely containing an unvented appliance is _____.
10 square feet of volume for every 20 Btu/h.
1 cubic foot of volume for every 20 Btu/h
1 square foot of volume for every 20 Btu/h.
There is no minimum size calculation. ✔Correct Answer-1 cubic foot of volume for every 20
Btu/h
Whole house fans rely on _____.
an adequate amount of ventilation in the attic to effectively exhaust
photovoltaic cells to power them
regular monthly changing of their filters
winter weather to provide comfort ✔Correct Answer-An adequate amount of ventilation in
the attic to effectively exhaust
Why do copper pipes turn green at solder joints?
improperly brazed joints
improperly welded joints
improper soldering, too much flux left on piping
water leaks ✔Correct Answer-Improper soldering, too much flex left on piping
A material with a high resistance would be a _____.
good conductor
good insulator
good neutral wire
good transformer ✔Correct Answer-Good insulator
Vented and unvented room heaters _____.
are never used in small homes or seasonal cabins
can be connected to ductwork to serve adjoining rooms
have no vertical flue to the exterior
use radiation, convection, and/or a fan to distribute heat throughout the room ✔Correct
Answer-Use radiation, convection, and/or a fan
Which of the following vents is normally controlled by a thermostat?
, power ventilator
ridge vent
roof-top vent
turbine vent ✔Correct Answer-Power ventilator
When testing two-slot receptacles with the neon bulb tester, which of the following would show
reversed polarity?
hot and neutral slots tested, and the bulb lights
hot slot and cover plate screw tested, and the bulb lights
neutral and hot slots tested, and the bulb doesn't light
neutral slot and cover plate screw tested, and the bulb lights ✔Correct Answer-Neutral slot
and cover plate screw tested, and bulb lights
Where will the oil filter be located in the oil supply line?
at the top of the oil tank
between the tank and the oil burner
in the heating unit
on the exterior fill pipe ✔Correct Answer-Between tank and oil burner
When the solvent in paint evaporates too quickly, what can be the result?
alligatoring
chalking
cracking
crazing ✔Correct Answer-Alligatoring
How does compression act on structural members?
It bends them.
It pulls at the members and makes them longer.
It pushes at the members and makes them shorter.
It twists them. ✔Correct Answer-It pushes at the members and makes them shorter
The maximum thickness of a mortar joint used with a firebrick inside the hearth is _____.
1/2 inch
1/4 inch
5/8 inch
not a problem because it does not matter ✔Correct Answer-1/4 inch
