What is the most common type of positive-displacement compressor used in industry?
What will be an ideal response?
Piston or reciprocating compressors are the most common type of positive-displacement compressor used in industry.
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Two capacitors, a 20 ?F and a 30 ?F, are connected in parallel to a 400 Hz source. What is the total capacitive reactance?
A. 7.96 ? B. 33.16 ? C. 42.04 ? D. 53.05 ?
The Wilmot Proviso, introduced into Congress during the Mexican War, declared that
A. Mexican territory would not be annexed to the United States. B. slavery would be banned from all territories that Mexico ceded to the United States. C. the United States should annex all of Mexico. D. the United States should have to pay Mexico a financial indemnity for having provoked the war. E. slavery in the territories would be determined by popular sovereignty.
With ____, surface tension helps hold the metal in place, giving excellent bead contour.
A. mild steel B. aluminum C. stainless steel D. low carbon steel
Electrical feedback is usually a result of _________
A) Too high a voltage in circuit B) Too much current (amperage) in a circuit C) Lack of a proper ground D) Both A and B