Cartridge fuses used for branch circuit protection must be marked with the ampere rating, voltage rating, and
the _____.
a. date manufactured
b. dimensions
c. expiration
d. interrupting rating
d
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You need to prepare to perform a First Law analysis on a device. Upon inspection, you see that the device is small, uninsulated, has one inlet and one outlet, and has no obvious work inputs or outputs. The operator tells you that steam enters through the inlet and liquid water exits through the outlet. The operator says that he turns it on at the beginning of the day, and turns it off at the end, and never has to pay any attention to its operation. Beginning with the general equation for the First Law of Thermodynamics, develop a simplified expression that should be suitable for use with this device.
What will be an ideal response?
Some cooling-only window air conditioners are equipped with energy-saver switches. What is their purpose?
What will be an ideal response?
Explain how a naturalized bulb planting is created
What will be an ideal response?
The right front electric window is inoperative regardless of which switch is used. It sounds like the motor is turning. Technician A says the window regulator may be disengaged. Technician B says the sector gear may be worn. Who is correct?
A. Technician A only B. Technician B only C. Both Technician A and B D. Neither Technician A nor B