What two measures are used in rating the size of an injection molding machine?
What will be an ideal response?
The shot size and the clamping pressure are the important measures of capacity of an injection molding machine. (1) The shot size is the amount of material that can be injected.
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When the outdoor temperature falls below the balance point, an air-to-air heat pump _____
a. must be shut down
b. can no longer extract heat from the outside air
c. requires supplemental heat
d. can produce more heat than the structure requires
Contactors are large relays and are used to control the operation of loads that draw more than ____ amps.
A. 5 B. 10 C. 15 D. 20
The Venturi effect is produced by injecting water into smaller diameter jet nozzles that increase the velocity of the water and force a turbine to spin
Indicate whether the statement is true or false.The _________ characteristics of the two-wire transmission line depend primarily on the construction of the line
A. electrical B. magnetic C. radiation D. conductive