After the liquid refrigerant leaves the condenser, what are two things that will cause it to flash off before it reaches the metering device?
a. A rise in temperature or a fall in pressure.
b. A rise in temperature with a corresponding rise in pressure.
c. A fall in temperature.
d. A rise in pressure.
a. A rise in temperature or a fall in pressure.
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Technician A says that a clutch must engage completely, all at once. Technician B says that the clutch must slip during engagement. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
A set of brake linings has become glazed because of oil saturation by a failed wheel seal. Technician A says that pressure washing the foundation brake components should be sufficient to remove the effects of the oil saturation. Technician B states that the best practice is to replace the brake linings on both wheels on the affected axle. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
In recent years the annual productivity of slash-and-burn systems has tended to decline over that achieved by the traditional shifting cultivation systems of the past. To what is this decline most likely due?
A) reduction in the C/N ratio of the soil organic matter B) reduction in the use of fertilizers C) increase in the period of food production in a given cycle D) failure to grow legumes in the cropping system E) decrease in the length of the fallow period
Find the Norton equivalent of the network seen by R3 in Figure P3.67. Use it to determine the power dissipated by R3.
Assume R1 = 10? , R2 = 9? , R3 = 4? , R4 = 4? , IS = 2 A.
Find:
Using the Norton theorem, determine the power dissipated through R4
