What is meant by cryogenic flash removal?
What will be an ideal response?
Cryogenic flash removal simply means that the parts are frozen when the flash is removed. This freezing makes the plastic brittle and, because the flash is thin, increases the likelihood that the flash can be broken off the parts when they are tumbled together.
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Cost per mmBtu of steam from a district heating plant is characterized by which of the following?
A) More than the cost of steam produced on site due to capital investment for the plant. B) Less than the cost of steam produced on site due to higher efficiency. C) Approximately equal to the cost of stream produced on site since fuel costs are equal.
What is it called if both valves are closed at the same time and the gas has no place to go?
A. Interlock B. Vibration C. Deadheading D. Loss of capacity
The sequence of operation of a high-efficiency furnace is ________
A) the thermostat calls for heat, the pilot is established, the combustion fan turns on, the main burner comes on B) the thermostat calls for heat, the combustion fan turns on, the pilot is established, the main burner comes on C) the thermostat calls for heat, the pilot is established, the main burner comes on, the combustion fan turns on
Cores used in sand casting should generally be more than two inches in cross section.
Answer the following statement true (T) or false (F)