Technician A says that some power assist systems use an external cooler for the power steering fluid. Technician B says that all variable assist systems are electrically actuated. Who is correct?
A) Technician A only B) Technician B only
C) Both technicians A and B D) Neither technician A nor B
A
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A pressure-operated piston is used to open the ____ and permit more air to flow.
a. shutters b. valves c. contacts d. switches
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Compared to air-conditioning evaporator coils, commercial refrigeration coils have:
A) More fins per inch. B) Materials that are less brittle at low temperatures. C) About the same number of fins per inch. D) Fewer fins per inch.
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Which of the following types of compressors are used in truck A/C systems?
a.swashplate b.crank-actuated piston c.rotary vane d.all of the above
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How is the roof structure shown for a simple structure when a roof framing plan is not provided?
What will be an ideal response?
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