The use of the spirit level fixed to the telescope of a levelling instrument is:
ATo make the line of sight vertical
BTo make the line of sigh thorizontal
CTo compute the difference in elevations
DTo establish the G.T.S.Bench mark method
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Statements followed by some conclusions are given below.
Statements:
1. Tea is green, Coffee is brown and milk is white.
2. More than half of the town likes tea.
3. People who like white don’t like green and some people who like brown don’t like white.
Conclusions:
I. Green is more popular in the town.
II. There is at least one coffee drinker who does not like tea.
Find which of the given conclusions logically follows from the given statements.
A. Only conclusion I follows.
B. Only conclusion II follows.
C. Both I and II follow.
D. Neither I nor II follows.