KARL FRANCES LAWAS TIMTIM
BSCE 3B
CE 36- HYDRAULICS
ENGR. PAULINO REOMERO
1. Question on Orifice, An opening in the wall or base of a vessel through the fluid
flows?
a.) Orifice b.) Channel c.) Outlet d.) Hole e.) Vent
2. Question on Cippoletti weir, Find the discharge over a narrow-crested weir 7m
long and having a head of 0.4m of water. Take Cd= 0.62
a.) 2.777 𝑚3 /𝑠 b.) 3.326 𝑚3 /𝑠 c.) 4.212 𝑚3 /𝑠 d.) 1.452 𝑚3 /𝑠 e.) 3.242 𝑚3 /𝑠
3. Question on triangular weir, Find the discharge over a triangular notch of angle
50 when the head over the triangle notch is 0.2. Assume Cd= 0.6
a.) 0.910 𝑚3 /𝑠 b.) 0.452 𝑚3 /𝑠 c.) 0.838 𝑚3 /𝑠 d.) 0.058 𝑚3 /𝑠 e.) 0.832 𝑚3 /𝑠
4. Question in Rectangular weir, Find the discharge over a rectangular weir of
length 120m. The head of water over the weir is 1.5m. The velocity of approach
is given as 1.5m/s. Take Cd= 0.6
a.) 427.954 𝑚3 /𝑠 b.) 532.612 𝑚3 /𝑠 c.) 623.122 𝑚3 /𝑠 d.) 212.415 𝑚3 /𝑠 e.)
753.234 𝑚3 /𝑠
5. Question on subcritical, critical and supercritical flow, for a given constant
discharge, known as ____ where the specific energy curve has a minimum value
Esc at point C with the corresponding depth 𝑦𝑐 .
a.) Subcritical depth b.) Supercritical depth c.) Superficial Depth d.) Critical Depth
e.) Stable Depth
6. Question on Open Channel, A flow of liquid in a conduit in which the upper
surface of a liquid is in contact with the atmosphere.
a.) Closed Channel Flow b.) Inner Mamba Flow c.) Outer Turret Flow d.) Open
Channel Flow e.) Blood Channel Flow
7. Question on Siphon, A tube used to convey liquids upwards from the reservoir
and then down to a lower level of its own accord.
a.) Weir b.) Open Channel c.) Siphon d.) Mouthpiece e.) Orifice
8. Question on Gate, Determine the width 𝑏2 of the throat for a venture flume so it
will produce the critical flow. Given Q= 40𝑚3 /𝑠, 𝑏1 =5m, ℎ1 = 5m.
a.) 2.019m b.) 3.019m c.) 1.019m d.) 4.019m e.) 5.019m
9. Question on Manning’s Equation. The value for the Manning’s coefficient when
the channel type is river and its surface is gravel.
a.) 0.03 b.) 0.003 c.) 0.01 d.) 0.00001 e.) 0.056
KARL FRANCES LAWAS TIMTIM
BSCE 3B
CE 36- HYDRAULICS
ENGR. PAULINO REOMERO
10. Question on Nodal Method, a generalized classic model for the nodal analysis of
complex looped systems with nonstandard network components
a.) Loop Method b.) Gradient Method c.) Element Method d.) Nodal Method e.)
Hardy Cross
11. Question on Chezy’s Equation, a famous equation where its coefficient is not
constant and depends on the Reynolds Number and boundary roughness.
a.) Bernoulli’s Equation b.) Manning’s Equation c.) Mizu Equation d. Chezy
Equation e.) Acqua Equation
12. Question Loop Method, The professor who devised the head balance method or
also known as Loop Method.
a.) Professor Luka Doncic b.) Professor Tim Hardaway c.) Professor HardyCross d.) Professor Nikola Jokic e.) Professor Damian Lliard
13. Question on Gradient Method, it has the advantage of fast convergence and
does not need continuity balancing in each node to begin the process.
a.) Gradient Method b.) Element Method c.) Incline Method d.) AMP method e.)
Hand Method
KARL FRANCES LAWAS TIMTIM
BSCE 3B
ANSWER KEY:
1. a.) Orifice
2. e.) 3.242 𝑚3 /𝑠
3. d.) 0.058 𝑚3 /𝑠
4. a.) 437.954 𝑚3 /𝑠
5. d.) Critical depth
6. d.) Open Channel Flow
7. c.) Siphon
8. a.) 2.019m
9. a.) 0.03
10. d.) Nodal Method
11. d.) Chezy Equation
12. c.) Professor Hardy-Cross
13. a.) Gradient Method
CE 36- HYDRAULICS
ENGR. PAULINO REOMERO