Explain how a system's refrigeration effect can be determined
What will be an ideal response?
Vertical lines from these points in the cycle to the enthalpy scale can be used to determine the refrigeration effect. The refrigeration effect is the difference in the enthalpy of the refrigerant entering the evaporator and the enthalpy of the refrigerant leaving the evaporator.
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A green LED maintains a constant VLED = 2V independent of the current ILED flowing through it. The LED connects to supply VS = 5V through resistor RL = 470? to produce current ILED= ____ (x.x) mA.
Fill in the blank(s) with the appropriate word(s).
An AutoCAD symbol object saved and stored in a drawing file for future use is called a(n):
a. Attribute b. Table c. Block d. Hatch
It is usually best for managers to have a low risk propensity
Indicate whether the statement is true or false.
In what ways does a cutting tool remove metal?
A) By causing it to slide ahead of the tool on a shear plane B) By splitting the metal just ahead of the tool C) Through the process of abrasion D) It produces extreme heat at the tip of the tool thus melting the chip/parent metal/interface