What components maintain the high and low pressures in an absorption refrigeration system?
A) The metering device, evaporator, and generator
B) The generator, the absorber, and the solution pump
C) The absorber, metering device, and evaporator
D) The condenser, evaporator, and absorber
B
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For the early English settlers, the need to establish a reliable food supply meant clearing the forest
Indicate whether the statement is true or false
Some soil colloids exhibit positive charges under highly acid conditions. To what are these charges likely due?
A) the release of some OH- ions leaving an unsatisfied positive charge on the colloid B) the adsorption of Al3+ ions on the colloid C) protonation of some hydroxy groups by excess H+ ions D) increase in the level of H+ ions on the exchange complex E) substitution of lower valent atoms for higher valent atoms in the octahedral sheet
How would you use a color wheel to create a design that conveys excitement?
What will be an ideal response?
____________________ are electronic circuits that are used to increase the amplitude of an electronic signal.
Fill in the blank(s) with the appropriate word(s).