What is the basic construction of a precipitation unit?
What will be an ideal response?
The basic construction of a precipitation unit is as follows: Mounted at or near a high-speed tool, it draws the contaminated air from around the cutting or grinding operation; removes the oil mist, smoke, and odor; and returns the cleaned air to the shop space. The salvaged coolant oil is returned to the machine coolant supply reservoir and reused. This air-cleaning unit consists of a rugged steel cabinet, which is easily installed. The entire unit is accessible from the side. Hinged doors permit ready access to the unit. The cabinet contains collector cells, an ionizer, a power pack, and the fan assembly. The air inlet is located near the bottom of the cabinet. This inlet is connected to the source of the oil mist or the hood of the machine. Flexible or fixed piping similar to an aluminum stovepipe is used to make the connection. A connecting flange provides a means of attachment between the machine and the air inlet. The air outlet is located at the back of the precipitation unit and is provided with a grill.
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What is consolidation of concrete, why is it necessary, and how is it done?
What will be an ideal response?
In a typical power plant, the turbines of power generators are rotated by _____.
a. coal b. natural gas c. steam d. motors
A(n) ____________________ is an electric device that protects a load from a high ampere draw by breaking a set of contacts.
Fill in the blank(s) with the appropriate word(s).
When planting a perennial flowerbed, it is best to apply a _____ layer of mulch before the bed is planted
A) 1- to 2-inch B) 2- to 3-inch C) 3- to 4-inch D) 4- to 6-inch