Motor oil is being discussed. Technician A says that the "W" in 10W-30 stands for "weight." Technician B says that thicker oils can cause lubrication problems in colder climates. Who is correct?
A. A only
B. B only
C. Both A and B
D. Neither A nor B
Answer: B
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Mobile refrigeration units are sized with no reserve capacity.
Answer the following statement true (T) or false (F)
In analog data transmission, frequencies of 0 to 300 Hz and 3300 to 4000 Hz are reserved as ________, used to ensure that the data transmission will not interfere with other signals
Fill in the blank(s) with correct word
When a technician uses a manifold gauge set to evacuate an air conditioning system what position should the technician position the hand valves in order to evacuate both sides of the system?
A. High pressure hand valve open and low press hand valve closed B. High pressure hand valve closed and low pressure hand valve open C. High pressure hand valve open and low pressure hand valve open D. High pressure hand valve closed and low pressure hand valve closed
A "confined space" is defined as an area with limited access, capable of being entered to perform work, and _________.
A. located in a submarine B. not intended for employee occupancy C. always painted red D. below a fuel hopper