Why does compressed air require a dryer?
A) Some small amounts of water from the water jacket cooling the air compressor enter the compressed air.
B) To dehumidify the air
C) To remove residual moisture that may have entered the air lines during installation
D) Compressing air tends to cool it off, causing water to begin condensing.
B
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What happens if a sewer or treatment system is not below the level of a structure’s drainage system?
What will be an ideal response?
The ____ is a thin membrane of lipid and protein. It controls the transport of molecules in and out of the cell.
A. plasma membrane B. nucleus C. ribosome D. endoplasmic reticulum
When planning labor, the crew leader must _____
a. factor in the absenteeism and turnover rates b. factor in time for training classes c. select the material to be used by each crew member d. identify the skills needed to perform the work
The stator windings for the three major types of three-phase motors – squirrel cage, wound rotor, and ____ – are basically the same.
a. synchronous b. stator c. bearing end brackets d. reversible