A. 120 db
B. 150 db
C. 180 db
D. 240 db
Related Mcqs:
- Preventive measures from part of the normal routine of forest administration, while remedial measures are called for in cases of:
A. Occasional
B. Unexpected damage
C. Where the preventive measures has broken down
D. All of the above - Maximum noise pollution in residential areas is due to:
A. Traffic sirens
B. Sirens and loud speakers
C. Kitchen appliances, radio and TV
D. Industries - The noise level of London is around:
A. 120-170 db
B. 90-160 db
C. 100-130 db
D. 100-160 db - Range land rehabilitation policies and measures are:
A. Policies: Develop system for effective periodic closure of range lands, to rehabilitate them and ensure sustainable livelihoods to range dwellers
B. Measures: Enforce existing land reform laws where absentee holdings of large tracts of range land are the impediment to proper management
C. Both (a) & (b)
D. None of these - Units of measures are:
A. Cusecs: flow of cubic feet per second
B. Cumecs: flow of cubic meter per second
C. Acre feet: volume of water required to cover one acre to a depth of one feet
D. All of the above - Control measures to check tree damages are:
A. Use of resistant varieties
B. Physical
C. Biotechnical
D. Biological
E. All of the above - Competition for water, minerals, light and space is most severe between two:
A. Closely related species occupying the same niche
B. Closely related species occupying different niche
C. Unrelated species occupying the same niche
D. Species occupying different overlapping ecosystems - What is contributed from the outer space in an ecosystem?
A. All the atmospheric gases
B. Only carbon, hydrogen and oxygen
C. Energy only
D. All the above components - When the number of organisms at successive levels are plotted, they assume the space of a pyramid. This is called the pyramid of:
A. Energy
B. Number
C. Biomass
D. Both (a) and (c) - Which are the primary constituents of photochemical smog?
A. SO2 and CO2
B. NO2 and hydrocarbons
C. Carbon di-oxide and NO2
D. Hydrocarbons and CFCs
The correct answer to the question: "The noise created at the launching of space rocket measures around:" is "180 db ".