True I’m not sure how to explain sorry
Answer:
36 months or 36,000 miles
Explanation:
CNG cylinder has limited lifespan. Generally lifespan of CNG cylinder is 15 years to 20 years. For safety purpose these cylinder should be inspected timely. Time limit for inspection of CNG cylinder is 36 months or 36,000 miles whichever comes first.
ThusCng cylinders must be inspected at least every 36 months or 36000 miles.
A dish shaped large muscle which moves up and down when there is contraction and expansion of lungs is the diaphragm which is present between the chest cavity and lower abdominal region. The action of the diaphragm is affected by an inflammation occurring below the muscular disc which will affect the process of breathing. The forceful breathing may result in strain and stress in the back muscles of the human body. This in turn causes pain in the shoulder.
The correct answer is in fact C , i just took the test.