____________________ bacteria may harm animals by feeding off body cells or secreting materials known as toxins
Fill in the blank(s) with correct word
Parasitic
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Air is heated from 20ºC to 827ºC. The error in the enthalpy change assuming a constant specific heat Cp:
A) 4.5% B) 5.5% C) 6.5% D) 7.5%
Most manual transmissions use a case made from ________.
A) Cast aluminum B) Pressed steel C) Cast iron D) Cast steel
The sequence of starting up, operating, and shutting down microprocessor-controlled centrifugal chillers and screw chillers _____.
a. requires a great deal of manual control b. is very different for the two types c. requires that the refrigerant charge be removed and replaced d. is highly automated and similar
A standard manifold gauge set has three color coded hoses attached to the manifold. Of the following, identify the INCORRECT statement.
A. The red line will cause the high pressure gauge to read pressure when attached to a source. B. The blue line will cause the compound gauge to read low pressure or vacuum when attached to a source. C. The yellow line is the service line and is used for evacuation or to add or remove refrigerant. D. The green line attaches to the port of the accumulator and will read the systems high pressure.