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Both are true. Tech A claims that a vacuum gauge can be used to locate tiny vacuum leaks. According to tech B, the catalytic converter is usually placed behind the muffler.
<h3>Which of the following links the catalytic converter to the exhaust manifold?</h3>
Tailpipe. The catalytic converter has cleaned up the exhaust gases, which are then sent out of the car and into the atmosphere via the tailpipe, the last link in the exhaust system.
<h3>Which of the following exhaust system parts aids in lowering exhaust emissions?</h3>
Hazardous pollutants from engine exhaust are decreased by the catalytic converter. The converter, which is situated between the exhaust manifold and the muffler, works with heat and metals that serve as catalysts.
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Solution :
Given :
The number of blows is given as :
0 - 6 inch = 4 blows
6 - 12 inch = 6 blows
12 - 18 inch = 6 blows
The vertical effective stress 
Now,
corrected N - value of overburden
effective stress at level of test
0 - 6 inch, 
= 9.86
6 - 12 inch, 
= 14.8
12 - 18 inch,
= 14.8
= 13.14
= 13
Explanation:
We need to prove that : 
Taking LHS : 
Taking 
common as follows :
...(1)
We know that :
....(2)
Use equation (2) in equation (1) as follows :
We know that : 
So,
=RHS
Hence, LHS = RHS
