NHIE and AHIT Exam Questions + Flashcards With Solved Solutions 2024
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Course
NHIE and AHIT
Institution
NHIE And AHIT
This type of water heater ventilation system uses the natural upward movement of airflow to filter exhaust gases up and out of the home. - CORRECT ANSWER-atmospheric ventilation system
The shutoff valve for a gas water heater's supply line may not be more than _____ feet from the water heater. -...
NHIE and AHIT Exam Questions +
Flashcards With Solved Solutions 2024
This type of water heater ventilation system uses the natural upward movement of
airflow to filter exhaust gases up and out of the home. - CORRECT ANSWER-
atmospheric ventilation system
The shutoff valve for a gas water heater's supply line may not be more than _____ feet
from the water heater. - CORRECT ANSWER-6
Water heaters must be installed in a location that has a level working space that is at
least _____ inches long and _____ inches wide. - CORRECT ANSWER-30, 30
Water heaters that use a gas fuel source may not be located in a room with _____
machinery. - CORRECT ANSWER-air-handling
Chimney Cap - CORRECT ANSWER-mounted above the crown, preventing water,
birds, small animals, and debris from getting inside the chimney while allowing smoke
and gas to escape.
Chimney Crown - CORRECT ANSWER-the top level of the chimney, with a sloped
surface directing much of the water away from the chimney
Spark arrestor - CORRECT ANSWER-mesh covering that stops sparks and embers
from leaving the chimney.
Irrigation systems conserve water by the use ___ ____ or ___ ___ sensors (SMS). -
CORRECT ANSWER-rain sensors, soil moisture
What 2 components are in a zone for a sprinkler system? - CORRECT ANSWER-valve,
sprinkler head
, What is a backflow preventor? - CORRECT ANSWER-Stops water contaminated from
pesticides, fertilizers, or other chemicals from entering the home's supply of drinking
water by allowing water to flow only one way
What are 2 possible locations for the irrigation system's shut-off valve? - CORRECT
ANSWER-below backflow preventor or underground, in line with water supply
Four types of well pumps: - CORRECT ANSWER-shallow well jet, centrifugal, deep well
jet, deep well submersible
Pressure switch - CORRECT ANSWER-senses water pressure and turns the pump off
and on and is normally mounted on piping at the water pressure tank.
Two types of septic systems: - CORRECT ANSWER-conventional, alternative
In a conventional septic system, sludge and scum remain in the tank, and the liquid
called ____ leaves the tank. - CORRECT ANSWER-effluent
A ___ ___ is a network of perforated pipes in trenches or beds of gravel. - CORRECT
ANSWER-drain field
For ranges, vent hood ducts must (3): ___, ___, and ___. - CORRECT ANSWER-
terminate outside the home, have a smooth interior surface and be constructed of
(galvanized steel, stainless steel, or copper), and be airtight
What 3 things can prevent cross connections at some equipment and fixtures: -
CORRECT ANSWER-anti-siphon devices, vacuum breakers, air gaps
S-traps can be converted to a vented P-trap through the use of an: - CORRECT
ANSWER-air admittance valve
This type of meter was installed in the last 20 years. They're usually compatible with
200 amp service, although there are exceptions. - CORRECT ANSWER-Rectangular-
base meters
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