To check the temperature leads of an electronic thermometer for high temperature, they should be ____.
A. placed on the bottom of a pan of boiling water
B. suspended in a pan of boiling water
C. suspended in the vapor above a pan of boiling water
D. suspended in a pan of boiling water located at least 1,000 ft. above sea level
Answer: B
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What flow is needed to supply a hot water radiator with a 1,750 Btu/hr?Carry the answer to three decimal places.
Fill in the blank(s) with the appropriate word(s).
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
What is a good rule of thumb for saving long programs?
What will be an ideal response?
Before humans began to devise ways to produce their own food, most of their time was devoted to which purpose?
a. Raising livestock and crops c. Finding enough food to eat b. Developing select crop varieties d. Caring for the young