Flame rectification is used on a(n) _____
a. HSI
b. spark igniter
c. automatic gas valve
d. standing pilot
b
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If the maximum frequency present in an analog waveform fmax = 20kHz, the period of the sampling frequency Ts must be less than _______ µs.
Fill in the blank(s) with the appropriate word(s).
The connecting rod in a two-stroke engine is generally a one-piece unit and is attached to the ____________________.
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is true regarding TXV selection?
a. Selecting by the nominal valve capacity is always best. b. The liquid refrigerant temperature entering the valve has no effect. c. The pressure drop through the valve has a significant effect on its capacity. d. The desired evaporator temperature has no effect on pressure drop through the valve.
A continuous-time signal with a fundamental period of 2 seconds is sampled at a rate of 6 samples/second. Some selected values of the discrete-time signal that result
x[0] = 3, x[13] = 1, x[7] = ?7, x[33] = 0, x[17] = ?3 Find the following numerical values, if it is possible to do so. If it is impossible, explain why. (a) x[24] (b) x[18] (c) x[21] (d) x[103]