Bimetal strip type overload relays operate on the principle that metals expand and contract with a change of ____.
a. composition
b. temperature
c. force
d. pressure
b. temperature
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What factor(s) primarily determine solenoid valve selection?
a. Refrigerant line size b. Flow rate and pressure drop c. Direction of refrigerant flow d. Number of on/off cycles
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Users of cable modems should be concerned today about other users being able to access their files
Indicate whether the statement is true or false
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__________ (HSPF) is used to measure heating efficiency. The HSPF is a comparison of the __________ compared to the __________.
What will be an ideal response?
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To safely back their vehicle, drivers should NOT:
a. tap their horn before backing up b. check their vehicle before they get in c. look over their right shoulder as they back up
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