A catalytic converter is being tested with an infrared pyrometer. Which is an acceptable result?
A) The temperature of a catalytic converter is the best test to perform to locate a restricted unit.
B) The inlet should be hotter than the outlet by 10%.
C) The outlet should be hotter than the inlet by 10%.
D) Both the inlet and outlet should be the same temperature after the converter reaches operating temperature.
C
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During the initial start-up for a rebuilt engine, what rpm should the engine be run at for the first 20 minutes of operation?
A. idle speed B. 1,500-2,000 rpm C. 2,500-3,000 rpm D. 3,500-4,000 rpm
The refrigerant lines for single zone mini-split air conditioners are usually connected by:
A) Flare fittings. B) SAE compression fittings. C) Reflok fittings. D) Brazed connections.
The chemical composition of an egg, including the shell includes which TWO of the following:
A. Water B. Protein C. Carbohydrates D. Iron
Why is it recommended to never put an air vent on a closed type expansion tank?
What will be an ideal response?