Explain how leaving a controller in manual affects the way it responds to process changes.
What will be an ideal response?
When a controller is left in manual, the operating percentage on the valve does not change. For example, If the opening on a level control valve is 25% and the level increases, the valve will not open wider to control the level.
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A(n) ____ is an electronic or magnetic relay that can perform a desired function.
A. diode B. sensor C. actuator D. monitor
Bulk density measurements can be used to determine how much lime is needed
Indicate whether the statement is true or false
When should gauges be installed on small critically charged systems?
A) Whenever the system is checked B) Only when other diagnostic means have been exhausted C) Routinely, at least every year D) Monthly to insure the charge is still correct
Carry the answer to two decimal places. Find the total weight of a 52-gallon steel drum and its contents if it contains 52 gallons of varnish weighing 8.16 pounds per gallon. The drum alone weighs 37.5 pounds.
Fill in the blank(s) with the appropriate word(s).