Surveying
The sun's declination remains north between

September 21 to December 21
June 21 to September 21
Both (A) and (B) of above
March 21 to June 21

ANSWER DOWNLOAD EXAMIANS APP

Surveying
Dumpy level is most suitable when

the instrument is to be shifted frequently
fly levelling is being done over long distance
many readings are to be taken from a single setting of the instrument
All of these

ANSWER DOWNLOAD EXAMIANS APP