A(n) ____ transfers electrical energy from one circuit to another through its windings.
A. transformer
B. inductor
C. conductor
D. magnet
Answer: A
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Find the estimated emissions listed below for an Uncontrolled (Post-NSPS) Large Wall-fired Boiler natural gas cogeneration facility that burns 500 million standard cubic feet (scf) of natural gas per year. Use the EPA’s AP-42 (Volume 1, 5th ed.) Chapter 1: External Combustion Sources Emission Factors for Natural Gas Combustion.
a. Tons of NOx emitted per year b. Tons of CO emitted per year What will be an ideal response?
The main thrust of USDA environmental programs has been to regulate externalities
Indicate whether the statement is true or false
Why is a vacuum line attached to a fuel-pressure regulator on many port-fuel-injected engines?
A) To lower the fuel pressure under heavy engine load conditions to help improve fuel economy B) To create an equal pressure drop across the injectors C) To draw fuel back into the intake manifold through the vacuum hose D) To raise the fuel pressure at idle
Choosing a sustainable new home can be daunting. ____ is the most critical first step.
A. Cost B. Airtight construction C. A properly sized and installed heating and cooling system D. Energy efficiency