Why do most humidifiers require annual cleaning and media replacement?
What will be an ideal response?
Minerals in the water are left behind in the sump and media when the water evaporates. A build up of deposited minerals reduces a humidifier's efficiency.
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List two local organizations that may assist with an emergency rescue.
What will be an ideal response?
The horizontal load P can act at any location along the length of member AC shown in Figure P12.26. Draw the influence lines for the moment and shear at section 1, and the moment at section 2.
When terminating a GTAW weld, the crater must be filled to the full cross section of the weld to prevent _____
a. cracking b. overfill c. melt-through d. root fusion
Which of the following is an advantage offered by a scroll-type compressor?
A) Smooth engagement B) Low engagement torque C) Ability to use a small clutch D) All of these