Technician A says that exhaust manifolds can be made from plastic or stainless steel. Technician B says that many intake manifolds have an EGR valve that regulates the amount of recirculated exhaust that enters the engine in order to increase NOx emissions. Which technician is correct?
A) Technician A B) Technician B C) Both technicians D) Neither technician
D
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Is the fire resistance of a roof a function of the roofing materials (roof cover, roof membrane, cover board, insulation, and deck) only, or may some other factor(s) also affect the fire resistance?
What will be an ideal response?
What are three things to check if a TEV is flooding?
a. Suction pressure, head pressure, and superheat. b. Blockage in the valve, head pressure, and superheat. c. Superheat adjustment, bulb location, and head pressure. d. Ice holding valve open, bulb not sensing suction line, and superheat.
The price of a gallon of engine oil is $7.89. What is the price per quart? There are four quarts in a gallon
A) $1.98 B) $1.99 C) $1.97 D) $2.00
One of the most challenging areas to create an effective envelope is the ____ of finished rooms above garages, where a poor air-seal can allow carbon monoxide and other poisonous gases to enter the living space.
A. ceiling B. floor C. walls D. windows