REVIEW INNOVATIONS

NOVEMBER 2024 CE BOARD EXAM REFRESHER HGE 1

1. A barge weighing 400 kN when empty is Situation 1. In order to determine the

5 meters wide, 18 meters long, and 2.5 volume and the specific gravity of a
meters high. The barge is floating stone that weighs 45 kg in air, the
upright in seawater with a specific engineer observed that when submerged
gravity of 1.03. Calculate the draft in fresh water the stone weighs 30 kg.
of the barge, in meters, when it is
loaded with 3000 sacks of rice, each 7. Evaluate the buoyant force acting on
with a mass of 50 kg? the stone, in N.
A. 2.06 C. 2.36 A. 15 C. 441.45
B. 2.26 D. 2.56 B. 147.15 D. 294.30

2. A closed cylindrical tank, 4 meters 8. Obtain the volume of the stone, in m3.
long and with a radius of 1.5 meters, A. 0.015 C. 0.035
is fully filled with water and placed B. 0.025 D. 0.045
on a car moving at an acceleration of
2.5 m/s2. How much force is acting on 9. Evaluate the specific gravity of the
the backside of the tank? stone.
A. 30.67 C. 174.67 A. 3 C. 5
B. 17.67 D. 20.67 B. 4 D. 6

3. A cubic meter of water is subjected to Situation 2. A 6 – m Ø cylindrical tank,

a pressure increase of 20 MPa. If the 5.7 m high, discharges water thru a 90
bulk modulus of elasticity of the – mm Ø orifice, C = 0.61, in the
water is 2200 MPa, evaluate the change conical bottom 30 – cm high.
in volume in m3?
A. 0.0136 C. 0.0146 10. Determine the time needed to empty the
B. 0.0178 D. 0.00909 cylinder.
A. 1 hr 24 min C. 1 hr 34 min
4. A turbine is rated at 450 kW when the B. 1 hr 44 min D. 1 hr 54 min
flow of water through it is 0.609 m3/s.
Assuming an efficiency of 87%, what 11. Compute the time needed to empty the
head is acting on the turbine, in conical part of the tank.
meters. A. 6 min C. 8 min
A. 75.3 C. 65.5 B. 10 min D. 12 min
B. 90.8 D. 86.6
12. Compute the total time needed to empty
5. A vertical clean glass piezometer tube the tank.
has an inside diameter of 1 mm. When a A. 1 hr 50 min C. 1 hr 52 min
pressure is applied, water (σ = 0.0728 B. 1 hr 54 min D. 1 hr 56 min
N/m) rises into the tube to a height
of 25 cm. After correcting for surface Situation 3. A rectangular gate 1.2 m by 3
tension, estimate the applied pressure m is acted by water on one side and is
in Pa. positioned with its longer sides
A. 2452 C. 2747 parallel to the water surface and the
B. 2158 D. 2205 plane of the gate is inclined at 60º
with the horizontal. The top of the
6. In a bakery, water enters a mixing gate is submerged 2 m vertically below
chamber at the rate of 150 liters the water surface.
per sec through Pipe A, while cooking
oil with specific gravity of 0.80 is 13. Evaluate the hydrostatic force (kN) on
forced at 30 liters per sec through the gate.
pipe B. Assuming the liquids are A. 89 C. 95
incompressible and from a B. 116 D. 103
homogeneous mixture of oil globules in
water, evaluate the density of the 14. Locate the point of action of the total
mixture in kg/m3 leaving through a hydrostatic force from the bottom on
pipe of diameter 300 mm. the plane of the gate.
A. 712 C. 967 A. 0.34 C. 0.56
B. 876 D. 1000 B. 0.04 D. 0.26

15. If the gate is hinged at the bottom,

evaluate the force normal to the gate
at its vertex that will be required to
open it, in kN.
A. 45.1 C. 41.5
B. 54.1 D. 35.4

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NOVEMBER 2024 CE BOARD EXAM REFRESHER HGE 1

16. Minor losses through valves, fittings, 24. Type of flow in which the density of the
bends, contractions etc. are commonly fluid is constant from one point to
modeled as proportional to: another.
A. total head A. continuous flow
B. static head B. steady flow
C. velocity head C. compressible flow
D. pressure drop D. incompressible flow

17. The best hydraulic cross section for a 25. Type of flow in which the fluid
trapezoidal channel of base width b is particles rotate about their own axis
one for which the length of the side while flowing along the streamlines.
edge of the flow section is: A. rotational flow
A. b B. steady flow
B. b/2 C. irrotational flow
C. 2b D. incompressible flow
D. √𝟑𝐛

18. When the path lines of the individual

particles of a flowing liquid are
irregular curves and continually cross
each other and form a complicated
network, the flow is called:
A. uniform
B. laminar
C. continuous
D. turbulent

19. Type of flow where the flow rate does

not change over time.
A. continuous flow
B. laminar flow
C. steady flow
D. uniform flow

20. Type of flow where the mean velocity of

flow for a given length or reach is the
same at every cross section.
A. continuous flow
B. laminar flow
C. steady flow
D. uniform flow

21. Uninterrupted flow in a fluid near a

solid boundary in which the direction of
flow at every point remains constant:
A. continuous flow
B. laminar flow
C. steady flow
D. uniform flow

22. Type of flow where at any time, the

discharge or flow rate at every section
of the stream is the same.
A. continuous flow
B. steady flow
C. critical flow
D. uniform flow

23. Type of flow in which, for a fixed rate

of flow, the specific energy is minimum.
A. continuous flow
B. steady flow
C. critical flow
D. subcritical

This review material is exclusively for the personal use, viewing and downloading of Review Innovations’ reviewees. Unauthorized
reproduction, use, or dissemination is strictly prohibited and shall be prosecuted to the full extent of the law.