The center hose on a two-valve manifold is color-coded __________. List the four pieces of equipment to which this hose can be connected.
What will be an ideal response?
yellow
a vacuum pump for system evacuation, a nitrogen tank for leak-checking the system, a refrigerant tank for system charging, a recovery unit or recovery tank for refrigerant recovery
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Betty has 54 sheep. Working an 8-hour day, she sheared 24 sheep. The sheep average 11.8 pounds of wool.
a. How many sheep were sheared per hour? b. How many pounds of wool were produced? c. What percent of the sheep was sheared in 6 hours?
Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on.
A beaker holds 962 g of a brine solution that is 6.20 percent salt. If 123 g of water are evaporated from the beaker, how much salt must be added to have an 8.60 percent brine solution?
What components maintain the high and low pressures in an absorption refrigeration system?
A) The generator, the absorber, and the solution pump B) The metering device, evaporator, and generator C) The condenser, evaporator, and absorber D) The absorber, metering device, and evaporator
The purpose of the oil filter bypass valve is to ________
A) Keep the oil from draining out of the filter when the engine is shut off B) Allows oil to bypass the oil filter when the oil is hot, to help cool the oil C) Allow oil to bypass the filter if the filter becomes clogged D) Both B and C