ARE Study Review

To specify an accessible sink, the depth of the basin should be a maximum of ________. Choose two of the following: A. 5.5 inches depth in a counter 33 inches high. B. 6 inches deep. C. 6.5 inches depth in a counter 34 inches high. D. 7 in deep in a counter 35 inches high. E. 7.5 in deep in a counter 36 inches high.

Identify from top to bottom: 1. 2. 3. 4. 5.

What type of valve is this? It is one of the family of quarter-turn valves and is preferred for shut-off applications. A. butterfly, B. ball C. check, D. globe, E. gate

Fire extinguishers bearing a blue circle-shaped label are classified for which type of fire? A. ordinary combustibles, B. flammable liquids, C. electrical fires D. metal fires

Which type of fire sprinkler system is used where damage from water to the contents or finishes of a building is a significant concern: A. wet-pipe B. dry-pipe C. pre-action D. deluge

A large warehouse facility in Oregon stores paper products. Which of the following fire sprinkler systems should be installed? A. Pre-action system, B. Wet pipe system C. Deluge system, D. Dry pipe system

The process of joining two pieces of piping that requires the material to be heated occurs with which of the following? A. plastic B. copper C. iron D. steel Answer B. copper is soldered and the material heated. Other methods also exist to join copper such as quick connect fittings. Plastic (A) is joined by solvent welding. Steel (D) or iron (C) piping is usually threaded and joined with couplings and fittings. ARE 4.0 exam prep: BS

What is the most typical hose bib application? A. exterior faucet B. laundry hook-up C. sprinkler head D. floor-mop sink Answer A. exterior faucet. Typical hose bibs are outdoor faucets, 3/4 garden hose threads for hose attachment. ARE 4.0 exam prep: BS

A loft tank in the house is connected to the outdoor pool on the hillside. If the pool elevation is higher than the supply tank, dirty water will be siphoned down to the house. What means can prevent the potential contamination of a potable water system? A. reduced principle assembly (RP) B. air gap C. double check valve assembly (DC) D. pressure vacuum breaker (PVB) E. none of the above F. all of the above Answer F. all of the above - are backflow prevention methods, but in this case a mechanical backflow preventer is the proper mechanism required. A/C/D are principal types of backflow prevention devices. ARE 4.0 exam prep: BS

In order to control the flow of water from a public water supply main to a service pipe, which of the following is necessary A. curb box B. building shut-off valve C. corporation stop D. check valve Answer C. corporation stop, installed off the main, but before the curb box (curb box provides access to a water meter and the emergency control valve to the building). ARE 4.0 exam prep: BS

Plastic supply piping is not permitted by some municipal codes. In jurisdictions that do allow plastic piping, which of the following is suitable for hot water supply? A. PE B. ABS C. PVC D. PVDC Answer D. polyvinyl dichloride is correct. The others are suitable only for cold supply. ARE 4.0 exam prep: BS

If one psi is required to lift a column of water 2.3 feet, then in a 3-story building with 10 feet floor-to-floor height, the water pressure needed at the basement of the building to flush a toilet on the third floor, operating at 15 psi is? Answer 30 feet/2.3= 13.04 psi) lift + 15 psi flush = 28 psi required water pressure. ARE 4.0 exam prep: BS

Which of the following can supply both heated and chilled water to a zone simultaneously? (Select 2) A. Forced convection B. Two pipe system C. Three pipe system D. Four pipe system E. Siamese fitting Answer C (heated and chilled supply with shared return) and D (heated and chilled supply with separate returns) ARE 4.0 exam prep: BS

Ignoring friction loss, if a water main at 50 psi supplies a flush-valve toilet located 50 feet above, how much pressure is available to operate the fixture? Answer Since 50ft x 0.434 lbf/sqin/ft (loss in static head) = 21.7 psi, then 50 psi - 21.7 psi = 28.3 psi ARE 4.0 exam prep: BS

Which of the following extends through the roof of a building? A. Soil stack B. Waste stack C. Vacuum breaker D. Stack vent Answer ARE 4.0 exam prep: BS

What is the recommended slope for a 4" building sewer? A. 1/16 in per foot B. 1/8 in per foot C. 1/2 in per foot D. 1 in per foot Answer 1/8 inch per foot. ARE 4.0 exam prep: SPD

When a single supply pipe brings hot water to plumbing fixtures in a building, water that has cooled in the pipes must be run thru until fresh hot water can replace it from the heat source to the fixture. How can this resulting delay for hot water can be solved? Answer By connecting all fixtures that will use hot water with a supply and return pipe, a two-pipe circulating system relies on natural convection to maintain a slow circulation & replacement of heated water. ARE 4.0 exam prep: BS

What are the three categories of copper used for supply piping? Answer Type K, type L and type M. Type M walls are thinnest. ARE 4.0 exam prep: BS

Which of the following classes is a dry standpipe with one 2 1/2 inch connection to be used by firefighters only? I. Class I II. Class II III. Class III Answer I. Class I ARE 4.0 exam prep: BS