To convert from cubic feet to cubic yards divide cubic feet by ________
A) 18 B) 27 C) 3 D) 9
B
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In a single-stage fuel oil pump, the oil is fed to the burner by capillary action.
Answer the following statement true (T) or false (F)
During the reaction whereby limestone changes the pH of a soil, what is the fate of the acid H+ that makes it unable to affect soil acidity?
a. It becomes attached to clay colloids. b. It becomes part of the water molecule. c. It volatilizes into a gas and leaves the soil. d. It leaches below the root zone.
What is the conversion of 20 inches of mercury to psi?
A) 60 psi B) 10 psi C) 2 psi D) 40 psi
Which one of the following PLC 5 addressing statements is NOT true?
A) A group is 16 input terminals (one 16 bit input word) and 16 output terminals (one 16 bit output word). B) Input and output (I/O) addressing connects a field device at a terminal on an I/O module to a bit location in the processor memory. C) Terminals (called I/O points) attach field devices to PLC modules and to bits in processor memory. D) Processors support up to 24 racks; the processor can be any one of the racks in the system.