Acetylene should never be used:
A) Above 15 psi. B) Below 20 psi. C) Above 20 psi. D) Below 15 psi.
A
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A Series 60 engine equipped with N2 injectors is being tuned up using the DDC service literature procedure. Technician A says that when the valves at cylinder #4 are at overlap, the EUI height may be set at cylinder #6. Technician B says that in this position, the valves at cylinder #3 may also be set. Who is correct?
A. Technician A only B. Technician B only C. Both A and B D. Neither A nor B
Extractors are devices used with _____
a. fire dampers b. smoke dampers c. access doors d. take-offs
The refrigeration system component that absorbs heat out of the product is the:
A) Compressor. B) Expansion device. C) Condenser. D) Evaporator.