Correct answer
B. All of these
Explanation
The correct answer is All of these.
If the depth of flow in a circular sewer is 1/4th of its diameter D, the wetted perimeter is________?
A ladder of weight ‘w’ rests against a smooth vertical wall, and rests on rough horizontal ground, the coefficient of friction between the ladder and the ground being 1/4. The maximum angle of inclination of the ladder to the vertical, if a man of weight ‘w’ is to walk to the top of it safely, is tan’1 x, where x is________?
Sewer ventilating columns are generally placed at________?
Which of the following methods is preferred for collecting origin and destination data for a small area like a mass business center or a large intersection?
The angle of intersection of the two plane mirrors of an optical square is________?
A rectangular column shown in the given figure carries a load P having eccentricities ex and ey along X and Y axes. The stress at any point (x, y) is________?