- “Any pipe that passes under a footing or through a foundation wall shall be provided with a relieving arch, or a pipe sleeve, pipe shall be two pipe sizes greater than the pipe passing through the wall.”
The above statement will protect the pipe against:
A. External corrosion.
B. Freezing.
C. Cave-ins.
D. Breakage.
D. Breakage.
- In a closed tank excessive water pressure can cause a rupture, but excessive water temperature can cause:
A. Scalding.
B. “Banging” in the pipes.
C. Tank collapsing.
D. An explosion.
D. An explosion.
- If the hand operated shut-off valve in a water line is turned to the fully closed position, and water continues to flow through the valve, the most likely defect you would find is:
A. Loose gland.
B. Excessive packing.
C. Improper seating of the valve disc.
D. A loose stuffing nut.
C. Improper seating of the valve disc.
- If the hand operated shut-off valve in a water line is turned to the fully closed position, and water continues to flow through the valve, the most likely defect you would find is:
A. Loose gland.
B. Excessive packing.
C. Improper seating of the valve disc.
D. A loose stuffing nut.
C. Improper seating of the valve disc.
- The best way to prevent a water pocket from forming when two horizontal steam pipes of different diameters are joined is:
A. Use an eccentric fitting.
B. Use a long fitting so that the slope between the pipe is very gradual.
C. Provide a drain cock.
D. Slope the pipe so that the smaller pipe is lower.
A. Use an eccentric fitting.
- A hot water storage tank is 24 inches in diameter and 10 feet in length its capacity, in gallons, is most nearly:
A. 180.
B. 240.
C. 300.
D. 360.
B. 240.
- Tubular brass traps are generally known as:
A. “P” bends.
B. “J” bends.
C. 1/2 “S” bends.
D. “U” bends.
B. “J” bends.
- The one material to be placed above the pipes when back-filling trenches is nearly:
A. Clean medium stones.
B. loose earth free from rocks.
C. Broken concrete.
D. Clean loose cinder fill.
B. loose earth free from rocks.
- Exposed soil or waste piping shall not be installed above:
A. Any bedroom area in residential buildings.
B. any healthcare facilities.
C. Any working, storage or eating surfaces in food surface establishments.
D. Any working area of any type.
C. Any working, storage or eating surfaces in food surface establishments.
