Briefly describe retaining rings and identify at least two uses.
What will be an ideal response?
Internal and external
retaining rings are available as fasteners to provide a stop or shoulder for holding
bearings or other parts on a shaft. They are also used internally to hold a cylindrical
feature in a housing. Common retaining rings require a groove in the shaft or
housing for mounting with a special pliers tool.
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A steam turbine operates at 1800 revolutions per minute (rpm). The turbine delivers 65.0 MW of power to the shaft of an electrical generator. Determine the torque on the steam turbine’s shaft.
Given: W?rs = 65.0 MW = 65,000,000 W;N? = 1800 rpm = 30 rps What will be an ideal response?
A crankcase-pressure regulating valve can help prevent _____.
a. refrigerant overcharge b. rapid suction pressure fluctuations c. compressor crankcase pressurization d. compressor motor overload
?The unit of measure of electrical power is ____________.
A. ?Volts B. ?Amps C. ?Watts
Why do you think risks associated with advanced technologies are less acceptable than those from known technologies?
What will be an ideal response?