Carbon dioxide extinguishers can be used on _____.
a. Class A and D fires
b. Class B and C fires
c. Class B and D fires
d. Class D fires only
b. Class B and C fires
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____ is a matrix consisting of marble or granite chips, Portland cement, and water or a synthetic resin.
A. Terrazzo B. Sand cushion C. Bonded D. Portland cement
What type of motor is the most common type of motor used in the process industries, primarily because of the simplicity of its construction?
A. AC B. DC C. Single or fixed speed D. Variable speed
A bracket that holds a dial indicator must be measured for ________, and this measurement is used to correct the reading
A) sag B) alignment C) droop D) free movement
What is the net stack temperature?
A) Stack temperature - ambient temperature = net stack temperature B) Supply air temperature - ambient temperature = net stack temperature C) Stack temperature + ambient temperature = net stack temperature D) Supply air temperature + ambient temperature = net stack temperature