NHIE Test Questions and Answers All Correct
Medium efficiency furnaces have a draft inducer fan and are connected directly to the vent system instead of having a draft hood. There are white and yellowish deposits below the draft inducer fan. A possible explanation for these deposits is that - A...
NHIE Test Questions and Answers
All Correct
Medium efficiency furnaces have a draft inducer fan and are connected directly to the
vent system instead of having a draft hood. There are white and yellowish deposits
below the draft inducer fan. A possible explanation for these deposits is that - Answer-
moisture is condensing in the vent and running back into the draft inducer fan
In new construction, the MINIMUM overhead electrical service clearances are - Answer-
walkway: 10 feet, roadway: 18 feet, deck: 10 feet
During a summertime inspection, what could indicate chronic condensation problems in
an attic? - Answer- There are gray/black stains on the north side roof sheathing
When inspection a heat pump in cooling mode, you measure a 28 degrees F
temperature differential between the interior supply and return air. You should suspect -
Answer- a dirty filter
What is the MINIMUM electrical service drop clearance from a residential driveway? -
Answer- 12 feet
The MINIMUM clearance between a wood stove single wall vent connector and
combustible materials should be - Answer- 18 inches
As a lintel over doors and windows in a masonry wall rusts it may cause - Answer- the
lintel to rotate and displace the brick
Roof truss uplift can cause cracks to form - Answer- at interior wall/ceiling intersections
Bonding of appliances can be confirmed by using a - Answer- ohm meter
The device used to detect the electrical current to the electric heater coil is called -
Answer- an ammeter
Overhead electrical service should be a MINIMUM of how many feet above a flat roof
subject to foot traffic? - Answer- 10 feet
Connections of dissimilar metal in a plumbing system, such as galvanized steel pipe
and copper pipe will usually cause - Answer- electrolysis
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