The least desirable method of detecting fire in concealed spaces is by:
A. looking for discoloration, peeling, or cracked materials.
B. feeling the area in question.
C.listening for popping, cracking, or hissing sounds.
D. smelling for smoke.
Answer: D. smelling for smoke.
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Wobble plate compressors commonly use how many cylinders?
A) Four B) Five or seven C) Two D) Three
Construct a free-body diagram of the sphere S in Figure 12.35 resting against two smooth surfaces. Find the reactions of the smooth surfaces on the sphere at A and B. The sphere has a mass of 450 lbm. gL = 32.174 0 ft/s².
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A sizing of 2" CTS x 1 designates _____.
a. 2" of insulation of a 1" CTS pipe b. 1" of insulation on a 2" CTS pipe c. 1 layer of 2" insulation on CTS pipe d. 1 insulation layer on a 2" CTS pipe
The accompanying figure shows the addition of a(n) ____________________ button to the circuit.
Figure
