Which of these functions is possible on a 74194 Universal Shift Register?
A) It can be a Johnson or Ring counter. B) It can shift or count.
C) It can shift left or right. D) It can count up or down.
C
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When two dissimilar metals are joined at one end, and that junction is heated, a voltage is produced. This is known as the ____________________.
Fill in the blank(s) with the appropriate word(s).
What is one characteristic that sets VVT systems apart from the other approaches?
a. The need for a bypass damper. b. Heating and cooling can be provided simultaneously. c. It is ideal for zones with very different heating cooling needs. d. Heating cannot be provided by the central unit.
A 1.5 cubic meter, stationary vessel initially contains one metric ton of pure liquid water at temperature T1. The top of the vessel is open to the atmosphere such that water can evaporate. At the end of a length of time, the vessel contains 750 kg of pure water at temperature T1. The pressure at the surface of the water is 1 atm throughout. You define “the liquid water in the vessel” as the system. Which of the following statements is true?
A. This is not a closed system because water leaves, but it is a steady state process because the temperature and pressure of the system are unchanged. B. The accumulation term of the energy balance can be eliminated because a stationary system can have no accumulation of kinetic or potential energy, and the internal energy has to be the same at the beginning and end, since T and P are the same. C. The energy balance should include a Q term, since there is no given information that allows us to say that heat transfer is 0 or negligible. D. The WEC term of the energy balance can be eliminated because this vessel has a constant volume. E. None of the above are true.
Which term describes the PCM shutting off fuel injection when the accelerator is pressed all the way down?
A) Starting mode B) Clear flood mode C) Closed loop mode D) Open loop mode