The reference pressure of an absolute pressure scale is __________.
A. the atmospheric pressure at sea level
B. a vacuum
Answer: B
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Which of the following statements about a linear air-fuel (LAF) sensor is NOT true?
A. The linear air-fuel sensor is located at the outlet of the three-way catalyst. B. Within the sensor, there is an exhaust flow chamber, an atmosphere reference chamber, and a diffusion chamber, plus a heater circuit that allows the sensor to work when the engine is cold. C. Positive voltage indicates a lean mixture and negative voltage indicates a rich mixture. D. The normal operating voltage range is about 1.5 volts.
Why do solenoid type valves pose a problem for some types of burners?
A) Solenoids open and close too slowly. B) Solenoids open and close too quickly. C) Solenoids' seal is not strong. D) Solenoids create too much pressure when closing.
Technician A says that faulty heater operation can be caused by a faulty engine cooling system. Technician B says that a complaint of insufficient heat can be caused by someone not filling a cooling system properly. Who is correct?
A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B
Using the diagram above and given that each interval represents 3/4", if the figure is scaled up by a factor of 4 what will be the new width of the figure?
What will be an ideal response?