A meter is _____ feet long.
A. 2.891
B. 3.812
C. 3.281
D. 3.582
Answer: C
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A flow switch is a device that can be inserted in a pipe so that when liquid or air flows against a part of the device called a ____, a switch is activated.
a. pilot tube b. Bourdon tube c. bulb d. paddle
Given the graph below, please fill in the following blanks:
a. The graph illustrates the concept of ________.
b. The total revenue is equal to area ________ if the market price is $4.
c. Total cost is equal to area _below supply ________ at this price.
d. Producers are economically ________ by area ________ if the market price increases
to $6.
The ____ of a machine is very important when referring to preventative maintenance.
A. history B. type C. age D. operators
In a water-cooled condenser, what do an increase in head pressure and a decrease in temperature difference across the condenser indicate?
A) Undersized condenser B) Low water flow C) Scaling on tubing D) Low-pH water