Why should oil or grease never be used to lubricate oxygen or acetylene regulators?
A) It can result in valve damage due to corrosion.
B) It decreases the accuracy of the gauges.
C) It can react with certain chemicals or materials and result in an explosion.
D) It will result in the loss of the manufacturer's warranty.
C
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In ____________________ irrigation, water is released onto fields from open canals
Fill in the blank(s) with correct word
Most starters do not have a provision to adjust the ____ clearance.
A. armature B. pinion C. commutator D. solenoid flange
Why is a binary-weighted resistor DAC impractical when over four bits of resolution are needed?
A) Too much current is demanded from the power supply. B) Too many odd resistor sizes are required. C) Not enough voltage can be generated by the power supply. D) It becomes too difficult to calculate the voltage output.
Since 2010,all of the following advances in technology have enabled carriers to create new data models that increase their insights into today and tomorrow, including impact routing, EXCEPT:
A. trailer automation B. driver training C. proof of delivery D. dispatch