NHIE Exam II - Electrical & Mechanical Systems with all
Correct & 100% Verified Answers |Actual Complete
Update |Already Graded A+
Workspace in front of an electrical panel board shall be a minimum of __" width, but no less
than the width of the panel board. ✔Correct Answer-30"
The minimum size conductor for feeders and branch circuits shall be __ copper. ✔Correct
Answer-14 Gauge
What is the minimum permitted size of a grounded service conductor serving a maximum of
150 amps? ✔Correct Answer-1/0 Copper (?)
What is the maximum over current protection device rating for No. 12 copper conductors?
✔Correct Answer-20 amps
Receptacle outlets shall be installed so that all points along the floor line in any wall space are a
maximum of __ feet from an outlet in that space when measure horizontally. ✔Correct
Answer-6 feet
Where installed in a storage closet, a recessed fluorescent luminaire shall be located so as to
provide a minimum clearance of __" between the fixture and the nearest point of the storage
space. ✔Correct Answer-6"
Where installed in a storage closet, a covered incandescent light shall be located so as to
provide a minimum clearance of __" between the fixture and the nearest point of the storage
space. ✔Correct Answer-12"
Hanging luminaires lighting track and pendants shall be located a minimum of _____
horizontally and _____ vertically from the top of a bathtub rim or shower stall threshold
✔Correct Answer-3' horizontally / 8' vertically
What is the component that introduces cold water near the bottom of a gas-fired water heater?
✔Correct Answer-The Dip Tube
What is the typical maximum distance between the fixture and the trap? ✔Correct Answer-
24" vertical / 30" horizontal
Where copper piping is to pass through holes bored in wood study, the pipe shall be protected
by shield plates except for those holes that are a minimum of __ from the nearest edge.
✔Correct Answer-1-1/2"
, A fixture tailpiece for a laundry tub shall be a minimum of __" diameter. ✔Correct Answer-1-
1/2"
What is the maximum number of fixtures connected to a horizontal branch drain that are
permitted to be circuit vented? ✔Correct Answer-8
The fixture drain length between the trap weir and the vent connection fitting should be __.
✔Correct Answer-At least two (2) pipe diameters
An open vent terminal extending through an exterior wall shall terminate a minimum of ___'
from the lot line. ✔Correct Answer-10'
Water heater T&P valve should be set so that the maximum temperature reached is ?
✔Correct Answer-210 DegF
A water heater pressure relief valve shall be set to open at ___ PSI ✔Correct Answer-150 psi
For other than black steel pipe, exposed gas piping shall be identified by a yellow label spaced a
maximum interval of ___ ✔Correct Answer-5 feet
In which of the following locations is the installation of gas piping not specifically prohibited?
a) In a circulating air duct
b) Through a clothes chute
c) Appliance vents
d) Adjacent to an exterior stairway ✔Correct Answer-d) Adjacent to an exterior stairway
For gas piping other than black or galvanized steel installed in a concealed location, a shield
plate shall be provided for protection against physical damage where a bored hole is located a
maximum of ___ from the edge of the wood member. ✔Correct Answer-1-1/4"
What is the maximum operating pressure for Polyvinyl chloride water pipe? ✔Correct
Answer-80 psi
Which statement would be true about steam heating systems?
a) The are insufficient
b) They require regular occupant maintenance
c) They make a lot of noise
d) They need a walkway ✔Correct Answer-b) They require regular occupant maintenance
Which statement about heat is false?
a) It's the amount of thermal energy in a body
b) It's measure in Deg. Fahrenheit
c) Sensible heat is one type
Correct & 100% Verified Answers |Actual Complete
Update |Already Graded A+
Workspace in front of an electrical panel board shall be a minimum of __" width, but no less
than the width of the panel board. ✔Correct Answer-30"
The minimum size conductor for feeders and branch circuits shall be __ copper. ✔Correct
Answer-14 Gauge
What is the minimum permitted size of a grounded service conductor serving a maximum of
150 amps? ✔Correct Answer-1/0 Copper (?)
What is the maximum over current protection device rating for No. 12 copper conductors?
✔Correct Answer-20 amps
Receptacle outlets shall be installed so that all points along the floor line in any wall space are a
maximum of __ feet from an outlet in that space when measure horizontally. ✔Correct
Answer-6 feet
Where installed in a storage closet, a recessed fluorescent luminaire shall be located so as to
provide a minimum clearance of __" between the fixture and the nearest point of the storage
space. ✔Correct Answer-6"
Where installed in a storage closet, a covered incandescent light shall be located so as to
provide a minimum clearance of __" between the fixture and the nearest point of the storage
space. ✔Correct Answer-12"
Hanging luminaires lighting track and pendants shall be located a minimum of _____
horizontally and _____ vertically from the top of a bathtub rim or shower stall threshold
✔Correct Answer-3' horizontally / 8' vertically
What is the component that introduces cold water near the bottom of a gas-fired water heater?
✔Correct Answer-The Dip Tube
What is the typical maximum distance between the fixture and the trap? ✔Correct Answer-
24" vertical / 30" horizontal
Where copper piping is to pass through holes bored in wood study, the pipe shall be protected
by shield plates except for those holes that are a minimum of __ from the nearest edge.
✔Correct Answer-1-1/2"
, A fixture tailpiece for a laundry tub shall be a minimum of __" diameter. ✔Correct Answer-1-
1/2"
What is the maximum number of fixtures connected to a horizontal branch drain that are
permitted to be circuit vented? ✔Correct Answer-8
The fixture drain length between the trap weir and the vent connection fitting should be __.
✔Correct Answer-At least two (2) pipe diameters
An open vent terminal extending through an exterior wall shall terminate a minimum of ___'
from the lot line. ✔Correct Answer-10'
Water heater T&P valve should be set so that the maximum temperature reached is ?
✔Correct Answer-210 DegF
A water heater pressure relief valve shall be set to open at ___ PSI ✔Correct Answer-150 psi
For other than black steel pipe, exposed gas piping shall be identified by a yellow label spaced a
maximum interval of ___ ✔Correct Answer-5 feet
In which of the following locations is the installation of gas piping not specifically prohibited?
a) In a circulating air duct
b) Through a clothes chute
c) Appliance vents
d) Adjacent to an exterior stairway ✔Correct Answer-d) Adjacent to an exterior stairway
For gas piping other than black or galvanized steel installed in a concealed location, a shield
plate shall be provided for protection against physical damage where a bored hole is located a
maximum of ___ from the edge of the wood member. ✔Correct Answer-1-1/4"
What is the maximum operating pressure for Polyvinyl chloride water pipe? ✔Correct
Answer-80 psi
Which statement would be true about steam heating systems?
a) The are insufficient
b) They require regular occupant maintenance
c) They make a lot of noise
d) They need a walkway ✔Correct Answer-b) They require regular occupant maintenance
Which statement about heat is false?
a) It's the amount of thermal energy in a body
b) It's measure in Deg. Fahrenheit
c) Sensible heat is one type
