Question 321
In a tilted aerial photograph, if the swing is 230°, then the rotation angle is equal to
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Question 322
What is the use of a station pointer ?
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Question 323
Distemper is used to coat
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Question 324
A rainfall may be classified as acidic if its pH value is less or equal to
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Question 325
An inverted siphon is designed generally for
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Question 326
Self-cleansing velocity is
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Question 327
In a fully mechanised composting plant, involves
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Question 328
The rate of accumulation of sludge in septic tanks is recommended as
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Question 329
Aerobic bacterias
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Question 330
The minimum recommended diameter of sewers, is
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