What are the two popular chemicals that can be used to avoid ethylene injury in flowers?
What will be an ideal response?
STS and EthylBloc.
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Why do some supermarkets use split condensers on their parallel rack systems?
a. To make sure there is plenty of condenser available for hot weather. b. To reduce refrigerant required by using only half the condenser in cold ambients. c. To reduce the weight of the condenser on the building roof support beams.
Because projected economic conditions and stability of employment in a given area are subject to change, these considerations are of little value in researching the market being evaluated as a possible location for starting a new business
A. True B. False
When evacuating a system after leak testing, the technician should use a micron gauge along with the vacuum pump and pump the system down to what level?
A) 1,500 microns B) 100 microns C) 500 microns D) 200 microns
When a hydrocarbon fuel does not burn completely, which type of harmful gas is present?
A. carbon monoxide B. carbon dioxide