ICA EXAM 1 QUESTIONS WITH COMPLETE SOLUTIONS

ICA EXAM 1 QUESTIONS WITH
COMPLETE SOLUTIONS




1. If water infiltration is suspected behind a finished surface, what tool would be the
best choice to verify dampness?

 a. Infrared thermometer
 b. Non-contact moisture meter
 c. Digital camera
 d. Gas detector

Answer: b




2. Gas-fired furnace heat exchangers most often fail from:

 a. Soot buildup
 b. Rust and metal fatigue
 c. Overheating
 d. Improper gas pressure

,Answer: b




3. Relative Humidity (RH) is expressed as:

 a. A ratio
 b. A fraction
 c. A percentage
 d. A decimal

Answer: c




4. Connections of dissimilar metal in a plumbing system, such as galvanized steel pipe
and copper pipe, will usually cause:

 a. Corrosion
 b. Leaks
 c. Electrolysis
 d. Water hammer

Answer: c




5. Which has the LEAST effect on the deflection of a dimension lumber floor system?

 a. Joist width
 b. Joist depth

,  c. Joist span
 d. Joist spacing

Answer: a




6. The normal MAXIMUM rise of residential stair treads is:

 a. 7 inches
 b. 7 3/4 inches
 c. 8 inches
 d. 8 1/4 inches

Answer: b




7. An ungrounded receptacle may be replaced by a ground fault circuit interrupter
installed:

 a. Upstream from the receptacle
 b. At the same location
 c. Downstream from the receptacle
 d. At the service panel

Answer: a




8. Circuit breakers: