The term m(h2 ? h1) in the control volume equation Q?Ws = m(h2 ? h1)
A) is often neglected in control-volume applications
B) represents the change in energy between the outlet and the inlet
C) includes the work rate due to the pressure forces
D) assumes the internal energy change is zero
C) includes the work rate due to the pressure forces
Recall that h = u + Pv. The enthalpy term includes the internal energy change and work due to the
pressure forces. It is defined to help simplify equations and when solving problems.
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?If an electrode is classified as EH12, it has a normal carbon point of ____ percent carbon.
A. ?.1 B. ?.12 C. ?1 D. ?12
Technician A says that an electronic throttle control uses a stepper motor. Technician B says that an electronic throttle control uses is spring loaded to about 16% to 20% throttle opening. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician
8085A is a new line of microprocessors specifically designed for
A) data bus applications. B) address application. C) register application. D) control applications.
Which of the following describes the operation of a positive edge-triggered D flip-flop?
A) If both inputs are high, the output will toggle. B) When both inputs are low, an invalid state will exist. C) The output will follow the input on the leading edge of the clock. D) The input is toggled into the flip-flop on the leading edge of the clock and is passed to the output on the trailing edge of the clock.