Weekly Content Archives

Curb cuts

In a curb ramp that is either a built-up or flared sides type, the maximum slope of the incline should not exceed 1:12 (8 1/3 %). What is the maximum slope of the (flared)sides in these types of curb ramps?

A. 1:8
B. 1:10
C. 1:12
D. 1:16

AnswerB=1:10 (10%) However when the level landing beyond the incline is less than 48 inches the flared sides are limited to 1:12.

Manhole Covers

Traditionally made of cast iron, steel or concrete, manhole covers can also be made of fiberglass-reinforced plastic, which offers corrosion resistance. Why are manhole covers round?

AnswerA round manhole cover is larger in diameter than the ring on which it sits, as well as it holds its shape through freeze-thaw cycles better than square openings which may skew becoming trapezoidal.
ARE 4.0 exam prep: SPD

Fire Extinguisher Labels

The four types or classes of fire extinguishers are identified using a picture-label system according to the type of fire for which they are designed. Match the shape (square, triangle, circle, star) to the following choices:

A. Class A for ordinary combustibles
B. Class B for flammable liquids
C. Class C for electrical fires
D. Class D for metal fires

AnswerSquare=B, Circle=C, Triangle=A, Star=D
ARE 4.0 exam prep: Building Systems