Noise level inside a jet airliner in normal flight is about ______________ decibels?
Correct answer: B. 100
- A. 80
- B. 100
- C. 125
- D. 150
Explanation
Noise inside a jet airliner during normal flight is commonly around 100 dB, although the exact level varies with aircraft type and seating location. Values near 125 to 150 dB are more characteristic of very close exposure to aircraft engines, not the passenger cabin.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
Practise Chemical Process Principles
2,710 free Chemical Process Principles MCQs from Chemical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemical Engineering questions like this
Chemical Engineering is on this paper prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for it.
More Chemical Process Principles questions
Aerosols present in atmospheric air may be__________________?
Fresh domestic sewage is _______________ in color?
The resistance of water to the passage of light through it is a measure of the___________________?
A considerable part of the harmful ultraviolet radiation of the sum does not reach the earth surface, because of the fact that, there is a layer of _____________ high above earth's atmosphere, which absorbs it?
Fluorosis is caused due to the presence of excessive amount of ______________ in drinking water?
Presence of carbon monoxide in atmosphere produced by decomposition of chlorophyll and haemoglobin breakdown of some animals, beyond TLV (>50 ppm) ?