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Author Question: EGR is used to control which exhaust emission? A) CO2 B) NOx C) HC D) ... (Read 138 times)

2125004343

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on: Jun 23, 2018
EGR is used to control which exhaust emission?
 
  A) CO2 B) NOx C) HC D) CO

Question 2

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


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memslove

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Reply #1 on: Jun 23, 2018
Answer to Question 1

B

Answer to Question 2

C


2125004343

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Reply 2 on: Jun 23, 2018
Thanks for the timely response, appreciate it

xiazhe

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Reply 3 on: Yesterday
:D TYSM

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