Which type of metering device is able to respond to changes in system operations?
A) Modulating metering devices B) Fixed valves
C) Fixed metering devices D) Hand-operated expansion valves
A
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It is possible to control a motor from as many places as there are stations using ____.
a. normally closed contacts b. the red pilot light c. a pushed closed contact d. the same magnetic controller
Define what is meant by Thermal Conductivity and Thermal Conductance.
What will be an ideal response?
Common sources of ignition include electricity, sparking metal, heat-generating equipment, and failed _____.
a. electrical connections b. hydraulic connections c. pneumatic connections d. mechanical connections
All overhead valve engines _________
A) Operate by the Wankel cycle B) Use an overhead camshaft C) Have the valves located in the cylinder head D) Use the camshaft to close the valves