6. What must be done to preserve an ice mantle for a day or longer?
A.
Place the glass cell in a sub-zero freezer.
B.
Pack the cell in dry ice.
C.
Place the jacket containing the cell in a freezer.
D.
The cell may be removed from the jacket and packed in ice.
7. The Model RCSI-SP Ice-Point Calibration Standard will maintain the ice point cell at
A.
0,, centigrade.
B.
.0100,, centigrade.
C.
.001000,, centigrade.
D.
.000100,, centigrade.
8. How far (in depth) must a thermometer be inserted into the well of the ice point
standard?
A.
to the depth necessary to get a reading
B.
completely to the bottom of the well
C.
half way
D.
place only the bulb of the thermometer into the well
9. What is used in the cold bath as the bath medium?
A.
A 50% solution of water and alcohol.
B.
A 60/40 solution of water and a silicone based oil.
C.
A 60% by volume solution of ethylene glycol in water.
D.
100% antifreeze.
10. What are the secondary reference temperature standards?
A.
Equiphase cell and hot bath
B.
Ice point standard and equiphase cell
C.
Thermocouple, mercury in glass thermometer and the resistance thermometer
D.
Thermocouple, mercury in glass thermometer equiphase cell and the cold bath
11. What is done to eliminate gas bubbles in mercury and glass thermometers with
expansion chambers?
A. Heat thermometer bulb with open flame until bubbles are joined. Carefully tap
thermometer against pad of paper or against palm of hand.
B. Heat bulb slowly and carefully until bubbles are joined. Carefully tap
thermometer against pad of paper or against palm of hand.
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