Noise level heard at a distance of about 100 metres from a jet engine with after

Question

Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels.

Options:

A . 120

B . 140

C . 170

D . 200

Answer: Option C

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More Questions on This Topic :

Question 1. Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about _________....day in a noisy chemical plant is about __________ decibels.

Question 2. The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is....exposed for eight hours per day is about __________ decibels.

Question 3. Noise level inside a jet air liner in normal flight is about __________ decibels.....

Question 4. Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels.....

Question 5. Noise level in a quiet private business office is about __________ decibels.....

Question 6. Noise level during normal conversation among men is about __________ decibles.....

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Question 9. Which of the following is the most lethal water pollutant?....

Question 10. Waste/polluted water discharged from electroplating, blast furnace and coal mining industries contain mainly __________ ....blast furnace and coal mining industries contain mainly __________ substances.

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