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Exam Prep 2 ICA Course
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Exam Prep 2 ICA Course
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Exam Prep 2 ICA CourseA sidewall extends past a roof. Hardboard siding is water damaged a few tiles beyond
where the roof and sidewall meet. The roof covering is asphalt strip shingles. What is
the most likely cause of this condition? - ANS- Kick out flashing was not installed.
A 1/2 inch wide gap exists between the drywall wall and ceiling. The seller reports that
this gap opens in the winter and closes in the summer. What is the most likely cause of
this condition? - ANS- truss uplift
A color tie would most likely be found in - ANS- the upper part of the attic.
A concrete basement wall has a crack that varies in width between 3/8 inch at the floor
to 1/8 inch 2 feet down from the wall top. What is the most likely cause of this condition?
- ANS- The soil is unstable under the footing.
A notch in a 12 foot long 2x10 floor joist is located 5 feet from the joist end. What is the
MAXIMUM allowed notch depth? - ANS- 0 inches
Racking is most likely to occur from failure to install - ANS- wall bracing.
You see a ceramic tile floor with numerous cracks running through the grout and the
tiles. The floor system is constructed using 2x10 floor joists. Which is the most likely
cause of this condition? - ANS- The floor joist span is too long.
You see uniform width cracks at both upper corners of all windows along one top story
wall. Which is the most likely cause of this condition? - ANS- The wall is improperly
braced.
The grounding electrode system of a house - ANS- provides an alternate return path for
electricity.
How many energized conductors supply 240 volt, 200 amp, single phase electric
service? - ANS- 2
A circuit breaker protects against too much - ANS- current.
, Which event is most likely to cause arc flash? - ANS- metal touching an energized
conductor
A subpanel in a detached building has melted insulation on a neutral conductor. What is
most likely cause of this condition? - ANS- The neutral conductor is loose at the terminal
bar.
In which location may NM cable be installed? - ANS- on top of ceiling joists located 6
feet from an attic access opening
A 2-slot receptacle has been replaced with a 3-slot receptacle in a branch circuit that
does contain an equipment grounding conductor? Which method is permitted? - ANS-
Replace the receptacle with a GFCI receptacle.
Where would an evaporative cooler be most effective? - ANS- Phoenix, AZ
When a heat pump is operating in cooling mode the temperature of the liquid line should
be a few degrees - ANS- warmer than the outside air temperature.
The effect of high humidity on an air conditioning system will be - ANS- a decrease in
the sensible load.
What is most likely to cause the greatest reduction of air flow in a flexible air duct? -
ANS- a 90° bend in the duct
What is the most likely result of insufficient air flow across the evaporator coil? - ANS-
Ice forms on the evaporator coil.
Which is the best example of heat flow by conduction? - ANS- heat flowing from the
inside to the outside of a radiator
When should combustion air NOT be drawn from inside a building? - ANS- the building
is built using tight construction methods
The flame from a properly adjusted oil burner should be what color? - ANS- white
What component is involved in controlling when a hot water boiler activates? - ANS- an
aquastat
Where would an equalizer pipe be found? - ANS- near a steam boiler
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