What is used to improve the efficiency of a screw compressor chiller?
a. Use a lithium bromide injection.
b. Install a flash economizer.
c. Install an oil separator.
d. Install inlet guide vanes.
b
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Technician A says changes in cam timing are made to improve high-performance operation. Technician B says the computer advances the cam and high rpm and low load. Who is right?
A. Technician A B. Technician B C. Both technicians D. Neither technician
____________________, ____________________, and ____________________ are three essential elements that plants can obtain from the air
Fill in the blank(s) with correct word
What is the difference between schedule 40 and schedule 80 iron pipe?
What will be an ideal response?
Battery powered devices operate on:
A) Modulating current (MC). B) Direct current (DC). C) Natural current (NC). D) Alternating current (AC).