Oxygen is never used to purge an HVAC system because _____
a. oxygen will contaminate the system
b. an explosion could occur under certain conditions
c. oxygen contains too much moisture
d. oxygen is too expensive to use for that purpose
b
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Often, the best thing to do with a heavily infested plant is to ____, though this might be difficult for an
emotionally attached client.
a. treat it with insecticidal soap c. quarantine it b. discard it d. treat it with pesticides
Groups that buy goods that another organization produces are known as suppliers
Indicate whether the statement is true or false.
The steps involved in replacing spark plugs include ________
A) Use compressed air to clean around the base of the plug B) Allow the engine to cool C) Keep the spark plugs arranged so that they can be compared in case of a fault with one cylinder D) All of the above
The minimum ICC 700 National Green Building Standard requires what level of efficiency above the IECC 2006 code?
A) 20% B) 5% C) 15% D) 10%