Electronic leak detectors for R-1234yf should meet:
A) J2297
B) J2298
C) J2913
D) J1628
C) J2913
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Which of these is a true statement regarding availability for work?
a. It is okay to be absent as long as you call in. b. Being on time means being no more than 15 minutes late. c. It is not necessary to call in because employers hire extra people, knowing that employees occasionally like to take a day off. d. Unless you are ill or have a family emergency, you should be on the job by the specified time.
?Define the term weld.
What will be an ideal response?
What is a phase converter?
What will be an ideal response?
What is a HEPA filter?
A) a filter that is at least 75% efficient at removing 1 micron particles B) a filter that is at least 85% efficient at removing all sizes of particles C) a filter that is at least 99.99% efficient at removing 0.3 micron particles D) a filter that is at least 95% efficient at removing all sizes of particles