« previous next »

Author Question: Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum ... (Read 119 times)

daltonest1984

  • Hero Member
  • *****
  • Posts: 536
on: Jun 23, 2018
Two technicians are discussing the testing of a catalytic converter. Technician A says that a vacuum gauge can be used and observed to see if the vacuum drops with the engine at idle for 30 seconds. Technician B says that a pressure gauge can be used to check for backpressure. Which technician is correct?
 
  A) Technician A only B) Technician B only C) Both technicians D) Neither technician

Question 2

EGR systems ________.
 
  A) Are used on all vehicles B) Reduce NOx emissions
  C) Both A and B D) Neither A nor B


ntsoane kedibone

  • Sr. Member
  • ****
  • Posts: 333
Reply #1 on: Jun 23, 2018
Answer to Question 1

B

Answer to Question 2

B


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Although the Roman numeral for the number 4 has always been taught to have been "IV," according to historians, the ancient Romans probably used "IIII" most of the time. This is partially backed up by the fact that early grandfather clocks displayed IIII for the number 4 instead of IV. Early clockmakers apparently thought that the IIII balanced out the VIII (used for the number 8) on the clock face and that it just looked better.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.

An engine in good mechanical condition should produce 17 to 21 inches Hg of vacuum at idle at sea ... An engine in good mechanical condition should produce 17 to 21 inches Hg of vacuum at idle at sea ...
Typical ignition timing map developed from testing and used by the vehicle computer to provide the ... Typical ignition timing map developed from testing and used by the vehicle computer to provide the ...
Hookup for testing fuel-pump current draw on any vehicle equipped with a fuel-pump relay. Hookup for testing fuel-pump current draw on any vehicle equipped with a fuel-pump relay.
Nonprotein Biocatalysts: Catalytic Nucleic Acids Nonprotein Biocatalysts: Catalytic Nucleic Acids
Testing Infants’ Knowledge Testing Infants’ Knowledge
A hypothetical grid of data used in synteny testing A hypothetical grid of data used in synteny testing
Video: DNA Replication

For a complete list of videos, visit our video library