The worm gear produces more heat because:
A. Has higher gear ratios. B. It is difficult to lubricate. C. It is usually mounted close to a motor. D. The gears slide against each other.
D
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Concrete cures best when poured in temperatures of _____.
a. 50°F to 60°F b. 55°F to 59°F c. 60°F to 80°F d. 80°F to 90°F
Which of these describes a hamster's defensive position?
A) standing on its rear legs with its paws upraised B) curled up with its head covered C) lying on its back with its stomach facing upward D) standing on all fours with its head pointing downward
The first domestication of crops and livestock occurred at the same time as the beginnings of human civilization
Indicate whether the statement is true or false
Determine the refrigeration effect of the following system. The liquid entering the evaporator has an enthalpy of 64 Btu/lb and the vapor leaving the evaporator has an enthalpy of 121 Btu/lb
What will be an ideal response?