Technician A says a vernier caliper can be used to measure disc pad thickness. Technician B says a dial indicator may be used to measure pad thickness. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: A
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Determine the forces in all truss bars. Indicate tension or compression.
Branch selectors are boxes in heat recovery VRF systems that allow:
A) One refrigerant line to feed a single indoor unit. B) Multiple refrigerant lines to feed multiple indoor units. C) One refrigerant line to feed multiple indoor units. D) Multiple refrigerant lines to feed a single indoor unit.
The ____ costs less to operate than other methods.
A. shielded metal arc welding process B. gas metal arc welding process C. oxyfuel welding process D. gas tungsten arc welding process E. none of the above