Many filter manufacturers use ____ to inhibit calcium or lime scale buildup.
A. wool
B. polysorbate
C. polyphosphate
D. polyphenols
Answer: C
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Technician A says that an ohmmeter can be used to measure voltage drop. Technician B says that an ammeter can be used to measure current. Who is correct?
A. A only B. B only C. Both A and B D. Neither A nor B
Portable on-stage switchboards must be equipped with a pilot light and must be supplied by an individual branch circuit rated at _____.
a. 15A or less b. 20A or less c. 30A or less d. 50A or less
Which of the following acronyms is the odd one out?
A. FACR B. ACRS C. APCR D. CR
On larger welding jobs where would the welder find missing information about the joint design?
A. Ask some of the other welders who have made the same part before. B. Call the draftsman who made the drawing. C. Look in the book to see what would be the best joint to pick for this weldment. D. On the welding drawings and in the specifications.