A properly operating air conditioning system should be able to provide air discharge airflow at the center vents at what temperature range?
A) 55-64° F (13-18°C) B) 45-54° F (7-12°C) C) 65-72° F (18-22°C) D) 35-45° F (2-7°C)
D
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The tool shown in the above figure is used to _____.
a. repair valves
b. make flare fittings
c. drill holes in bar stock
d. separate pipe flanges
Which of the following parameters can a proximity sensor be used to measure?
a. Speed of rotation of a shaft b. Closeness of an object c. Deformation of a metal piece d. Relative position of two linear motion surfaces e. Instantaneous position of a rotating shaft
Which noise is most noticeable at idle?
A) Main-bearing knock B) Worn thrust bearings C) Piston slap D) Valve lifters
An oxygen sensor is being tested with a digital multimeter (DMM) using the MIN/MAX function. The readings are: minimum = 78 mV; maximum = 932 mV; average = 442 mV. Technician A says that the engine is operating normally. Technician B says that the oxygen sensor is skewed too rich. Which technician is correct?
A) Technician A only B) Technician B only C) Both technicians D) Neither technician