To clean the pipe to install a mechanical joint fitting, use _____.
a. solvent
b. nonflammable solvent
c. joint compound
d. a grinder
b. nonflammable solvent
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Estimate the minimum work d to compress 2 kg of air in an insulated cylinder from 100 kPa a 27°C to 4 MPa. Assume constant specific heats: Cp = 1.0 kJ/kg·ºC and Cv = 0.717 kJ/kg·ºC.
A) 790 kJ B) 860 kJ C) 980 kJ D) 1100 kJ
Metal posts called ____ are the most common supports for girders.
A. piers B. bearing plates C. pipe columns D. joists
Muscles are essential for cat and dog
A. Movement B. Breathing, posture, and circulation C. Digestion D. All of the above E. A and C above
The total current flow in a parallel circuit is the ____.
A. quotient of the individual circuits with the greatest current flow B. difference of the individual circuits with the greatest current flow C. sum of the individual circuits D. product of the individual circuits