Agriculture MCQs

2794 MCQs  (Page 67 of 280)

Which of the following has highest-coefficient of discharge_____________________?
A. Sharp edged orifice
B. Venturi meter
C. Broad crested weir
D. Cippoletti weir
Aeration holes are provided to reduce the inside saturation pressure ____________________?
A. In a weir with end contractions
B. In a suppressed weir
C. In a cippoletti weir
D. In all weir
The centre of pressure of a plane submerged area which holds it in equilibrium is ____________________?
A. Always below the centre of gravity of the area
B. Coincident with centroid of area if its plane is vertical
C. Always above the centroid of the area
D. Independent of the inclination of area
If the duration of a unit hydrograph approaches zero, the resulting unit hydrograph is called __________________?
A. Instantaneous unit hydrograph
B. Intensity unit hydrograph
C. Unit hydrograph
D. Unit hyetgoraph
Net irrigation + field irrigation losses are the requirement of _____________________?
A. Full irrigation
B. Field irrigation
C. Furrow irrigation
D. Basin irrigation