Virtual Labs

1. A weir is primarily used to measure:

a: Pressure Explanation

Explanation

b: Velocity Explanation

Explanation

c: Discharge or flow rate Explanation

Explanation

d: Density Explanation

Explanation

2. A weir is generally installed across:

a: A closed pipe Explanation

Explanation

b: An open channel Explanation

Explanation

c: A pressure vessel Explanation

Explanation

d: A pump casing Explanation

Explanation

3. Which of the following is a commonly used type of weir?

a: Rectangular weir Explanation

Explanation

b: Pitot weir Explanation

Explanation

c: Venturi weir Explanation

Explanation

d: Centrifugal weir Explanation

Explanation

4. The head over a weir is measured from the crest of the weir to the:

a: Bottom of the channel Explanation

Explanation

b: Downstream water surface Explanation

Explanation

c: Upstream water surface Explanation

Explanation

d: Centerline of the channel Explanation

Explanation

5. Which type of weir is suitable for measuring small discharges accurately?

a: Broad-crested weir Explanation

Explanation

b: Triangular (V-notch) weir Explanation

Explanation

c: Ogee weir Explanation

Explanation

d: Submerged weir Explanation

Explanation

6. A suppressed rectangular weir is one in which:

a: The crest length is greater than the channel width Explanation

Explanation

b: The crest length is equal to the channel width Explanation

Explanation

c: The crest length is half the channel width Explanation

Explanation

d: No crest is provided Explanation

Explanation

7. Which type of weir experiences relatively smaller head losses?

a: Sharp-crested weir Explanation

Explanation

b: Narrow-crested weir Explanation

Explanation

c: Broad-crested weir Explanation

Explanation

d: Submerged weir Explanation

Explanation

8. Ogee-shaped weirs are commonly used as:

a: Pump impellers Explanation

Explanation

b: Dam spillways Explanation

Explanation

c: Venturimeters Explanation

Explanation

d: Orifice meters Explanation

Explanation

9. For a given head, discharge over a weir depends primarily on:

a: Atmospheric pressure Explanation

Explanation

b: Color of the fluid Explanation

Explanation

c: Temperature of surroundings Explanation

Explanation

d: Geometry of the weir Explanation

Explanation

Weirs Experiment