All of the following statements are correct EXCEPT ________
A) Hydrodynamic lubrication often prevents metal to metal contact
B) Viscosity of a lubricant affects its lubricating efficiency
C) Hydrodynamic lubrication works best in an engine when the lubricated components are stationary
D) Hydrodynamic lubrication uses a boundary film of oil for lubrication
C
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The progenitor of humanism was
a. Cassandra Fedele. b. Francesco Petrarcha. c. Cosimo de Medici. d. Gentile Bellini.
The thread on an oxygen hose is always _____
A) a left-hand thread B) a right-hand thread C) painted blue D) painted red
A device that detects visible or invisible particles of combustion is a _______.
A. Heat alarm B. Heat detector C. Smoke detector D. Thermistors
To lubricate by means of sinking the part to be lubricated into the lubrication is referred to as the ____ method of lubrication.
A. wick B. drip C. submersion D. drowning