The heat source for a heat pump is:
A) Always water.
B) The cool medium that the evaporator draws heat out of.
C) The warm medium that the condenser rejects heat into.
D) Always air.
B
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What is the main reason VCO nozzle geometry has become common today?
A. lower manufacturing costs B. lower HC emissions C. lower NOx emissions D. easier to recondition
In thermal storage systems, why is clear ice formation preferred over milky ice formation?
A) Clear ice is less dense than milky ice, reducing the weight the storage system must support B) Milky ice contains impurities that change the freezing point of the water C) Milky ice contains small pockets of air that act as small insulators, reducing the freezing efficiency D) Clear ice allows visual inspection of the coil without removing the ice
Consider that you have been assigned the task of quantizing for transmission a voice signal whose bandwidth is 3.4 kHz. You are constrained by a channel that can support a maximum bit rate of 35,000 bits/s. What is the maximum number of bits that you can employ for quantization? Also find the corresponding sampling rate of the signal.
What will be an ideal response?
Control transformers generally have screw terminals connected to the primary and secondary leads.
Answer the following statement true (T) or false (F)