NHIE Plumbing Practice Test Questions and Answers Fully Solved

NHIE Plumbing Practice Test Questions and Answers Fully Solved Please refer to the figure to answer this question. In the figure, the plumbing vent termination is A. installed with all proper clearances B. too close to the openable window C. too close to the property line D. too close to the wall B. too close to the openable window. A common term for the supply pipes going from the basement ceiling to the upstairs bathroom is: A. Verticals B. Stacks C. Risers D. Leaders C. risers Direct connections between potable water piping and sewer-connected wastes shall: A. be protected by a check valve B. not exist under any condition C. be provided with anti-siphon valves D. be protected by trap primers B. Not exist under any condition. If a well pump cycles on and off rapidly, it is an indication that A. someone is turning a faucet on and off B. the pressure switch is out of adjustment C. there is a leak in the well supply pipe D. the pressure tank is probably water logged D. the pressure tank is probably water logged. The modern MINIMUM size water service pipe to a residence is A. 1/2 inch B. 3/4 inch C. 1 inch D. 1 1/4 inch B. 3/4 inch. Polybutylene (PB) water supply tubing is seen in the house. You should report that it: A. may require expensive replacement B. is illegal to use this kind of pipe C. should only have been used for a waste pipe D. is not a problem. PVC pipe is a problem A. May require expensive replacement. A toilet in a residential bathroom A. is secured to the plumbing "closet flange" by two closet bolts B. is not allowed to have a double wax ring C. cannot be tightly sealed to a smooth floor such as sheet vinyl D. requires a minimum four-inch drainpipe A. is secured to the plumbing "closet flange" by two closet bolts. A common place for steel enamel sinks to "rust out" and leak is the: A. overflow channel B. sink rim C. bowl clamps D. drain control A. overflow channel The water heater pressure relief valve discharge pipe MUST be: A. A 3/4 inch pipe B. made of rigid pipe C. threaded at the bottom D. As large as the relief valve outlet D. As large as the relief valve outlet. A sacrificial anode (also called an anti-corrosion rod) is found in A. pressure tanks B. water heaters C. galvanized supply systems D. sump pumps B. water heaters Water heaters are NOT allowed in A. basements accessible only from interior stairs B. attics accessible only from a permanent ladder C. closets of bedrooms or bathrooms D. laundry rooms open to the living area C. closets of bedrooms or bathrooms. What appliance may vent into a chimney along with an oil-fired furnace if allowed by local code? A. bathroom vent fan B. woodstove C. gas water heater D. kitchen vent C. Gas water heater. If your inspection mirror fogs when placed near a gas water heater draft hood the: A. water heater has an internal leak B. temperature of the water is too hot C. water heater should be replaced D. unit may not be venting properly D. unit may not be venting properly The safe domestic water temperature in a home should NOT exceed how many degrees Fahrenheit? A. 115 B. 125 C. 135 D. 145 B. 125 What type of vent pipe material is allowed to run through a ceiling, roof, or wall for a natural gas appliance? A. type "B" UL approved B. type "A" UL approved C. black steel, as long as there is nine-inch (9") clearance to combustibles D. single-wall galvanized steel A. Type "B" UL approved Smelling sewer gas near a bathroom sink indicates that the drain trap is: A. clogged B. undersized C. flooded D. dried out D. dried out The purpose of a sanitary trap is to: A. block sewer gas B. catch objects C. eliminates radon D. regulate waste flow A. block sewer gas. A drain waste vent installed on an individual fixture where there is no access to a conventional venting system is known as a(n): A. outside vent B. mechanical vent C. roof vent D. inside vent B. mechanical vent A sewage ejection pump in a vacant single-family home continues to operate intermittently for a few minutes after all the fixtures have been operated. This is MOST probably due to A. a linking outside hose connection B. a leaking check valve C. a stuck float switch D. siphoning at a trap B. a leaking check valve.