Calculate the energy required to lift an elevator and its occupants with a mass of 1000 kg through a vertical distance of 5 m.
a. 5000 J
b. 49000 J
c. 25000 J
d. 2500 J
b. 49000 J
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How does the DD-Series ACRS quantity control valve (QCV) manage rail pressure?
A. By optioning high pressure fuel back to the tank directly from the rail B. By siphoning fuel from the HADIs C. By limiting fuel admitted to the transfer pump inlet D. By controlling fuel admitted to the high pressure pump elements
What is the output voltage at the end of the input pulse to an RL integrator if the resistance is 1.2 k?, the inductor is 200 mH and the input is a 5 V, 1.2 ms pulse?
A) 4.532 V B) 4.75 V C) 3.16 V D) 5 V
To determine if the contacts inside a sequencer are faulty, the technician should energize the relay and use an ohmmeter set to the RX1 scale. Which of these resistance readings indicates that the sequencer must be replaced?
A) Greater than 0.1 B) 0 C) Less than 0.1 D) Between 0 and 0.1
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.