In a feedforward system, the following error signal is kept at zero if __________.
A. C = E and FF = F
B. C = FF and E = F
C. C = F and FF = E
Answer: C
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The photocell uses light to change resistance.
Answer the following statement true (T) or false (F)
? Identify and state the historical significance of the Helsinki accords.
What will be an ideal response?
One common method of determining when the ice bin is full is:
A) When the ice bin is full, the evaporator gets too warm and will no longer chill to make ice. B) An ice level probe. C) A strain gauge on the bottom of the bin. D) When the ice bin is full, there is no room for water in the reservoir, so the ice machine shuts down.
Burning a hydrocarbon fuel will convert the carbon in the fuel to carbon dioxide. For every kmole of carbon to be burned, you need 1 kmole of oxygen (O2). This produces 1 kmole of CO2. If you originally have 2 kg of carbon to be burned, what is the mass of the CO2 that will be produced? The molecular mass of carbon is 12 kg/kmole, of oxygen is 32 kg/kmole, and of CO2 is 44 kg/kmole.
Given: mC = 2 kg; Mc = 12 kg/kmole; MCO2 = 44 kg/kmole What will be an ideal response?