If there is air leakage in the governor unloader circuit, which of the following will more likely result?
A. high system pressures
B. frequent compressor cycling
C. extended compressor unloaded cycles
D. safety pop-off valve tripping
Answer: B
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Gaius Marius’s great innovation was to
a. extend citizenship to Rome’s Italian allies. b. privatize the Roman army. c. refuse reelection as consul after his first term. d. hand Jugurtha over to his protégé Sulla.
Which of the following statements about intersystem bonding is correct?
A. Intersystem bonding is required at the service equipment but is optional at buildings supplied by a feeder. B. Intersystem bonding is optional at the service equipment but is required at buildings supplied by a feeder. C. Intersystem bonding is required at the service equipment and at buildings supplied by a feeder as well. D. Intersystem bonding is required at the main distribution for mobile home parks but is not required at the disconnecting means at the mobile home.
Compared to electro-mechanical controls, pneumatic controls can more easily
A) On- off control B) Control small appliances C) Provide proportional or modulating control D) control residential air conditioning systems
The _________________________ is usually made of two reed switches and two floats.
Fill in the blank(s) with the appropriate word(s).