The most economical section for a column is
ARectangular
BSolid round
CFlat strip
DTubular section
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The effective length of a compression member of length L held in position and restrained in direction at one end and effectively restrained in direction but not held in position at the other end, is
Usual minimum size of service pipe for domestic water supply is
Read the given statements and conclusions carefully and decide which of the conclusions logically follow(s) from the statements.
Statements:
All scientists working in Japan are talented.
Some Chinese scientists are working in Japan.
Conclusions:
I. No Chinese scientist is talented.
II. Some talented Chinese scientists are working in Japan.
III. All talented scientists are Japanese.
IV. Some Chinese scientists are talented.
The discharge through a trapezoidal channel is maximum when
A projectile projected in a horizontal plane has a velocity = 1 m/s and a=45° its horizontal range is