The steam grid humidifier works by:
A) Spraying water through nozzles and atomizing it to steam.
B) Passing air over a wetted element.
C) Introducing live steam into the air stream though a grid of orifices.
D) Boiling water in a pan to steam.
C
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The highest current draw is at locked-rotor (zero RPM) speed for NEMA Design B motors, and does not start to drop off significantly until the rotor reaches ____ full-load speed.
a. 70-75% b. 80-85% c. 90-95% d. 100%
Which of the following is NOT true regarding optical sensors?
A) Optical sensors use LEDs and a photo transistor B) Optical sensors generate a digital signal C) Optical sensors used as speed sensors only have four windows D) All of these are true statements
A hybrid electric vehicle has a feature that could allow the engine to start and run without warning. This feature is called ________
A) Battery save B) False off C) Self-start D) Idle stop
Are engineers allowed to review the work of another engineer and if so under what circumstances?
What will be an ideal response?