Explain the use of a vacuum gauge when testing for a restricted exhaust system.
What will be an ideal response?
To use a vacuum gauge for diagnosing restricted exhaust systems, connect the gauge to the intake manifold. With the gauge attached, run the engine at 2,500 rpm and monitor the gauge readings. If the vacuum goes down while holding the engine speed constant, inspect the exhaust system for the location of a restriction.
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Is there an accurate balance in nature? What would an accurate balance in nature mean?
What will be an ideal response?
If the ambient temperature is low (about 70°) or if the box load is low the condenser split will be ___________________?
a. lower by about 5° b. higher by about 5° c. about the same
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A) Rod B) Poppet valve C) Crankshaft D) Piston