WorksheetsHydraulics Mid Assessment
Total questions: 50
Worksheet time: 25mins
Name
Class
Date
1.
The branch of mechanics dealing with the properties of fluids in various states and with their reaction to forces acting upon them.
a)
Statics
b)
Fluid Mechanics
c)
Fluid Dynamics
d)
Hydraulics
2.
It is hard to compress and it changes its shape according to the shape of its container with an upper free surface.
a)
Liquid
b)
Gas
c)
Solid
d)
Plasma
3.
It is easy to compress and expands to fill the container.
a)
Liquid
b)
Gas
c)
Solid
d)
Plasma
4.
Mass per unit volume of a material.
a)
Specific Gravity
b)
Unit Weight
c)
Mass
d)
Density
5.
Weight per unit volume.
a)
Specific Gravity
b)
Specific Weight
c)
Mass
d)
Density
6.
Reciprocal of density.
a)
Specific Gravity
b)
Specific Weight
c)
Specific Volume
d)
Density
7.
Ratio of the density of a material to the density of water at 4 ℃.
a)
Specific Gravity
b)
Specific Weight
c)
Specific Volume
d)
Density
8.
Resistance of fluid between two layers of object sliding over each other.
a)
Kenimatic Viscosity
b)
Specific Weight
c)
Dynamic Viscosity
d)
Density
9.
Also called “momentum diffusivity”, is the ratio of viscosity to the density of the fluid.
a)
Kenimatic Viscosity
b)
Specific Weight
c)
Dynamic Viscosity
d)
Density
10.
The tension of the surface film of a liquid caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
a)
Kenimatic Viscosity
b)
Tension Force
c)
Dynamic Viscosity
d)
Surface Tension
11.
It is the force applied perpendicular to the surface of an object per unit area over which that force is distributed.
a)
Pressure
b)
Tension Force
c)
Surface Tension
d)
Force per Area
12.
A standard atmospheric pressure is equal to __?
a)
1 Bar
b)
1 Torr
c)
1 Pa
d)
1 atm
13.
A device which measures the fluid pressure by the height of a liquid column.
a)
Tube
b)
Manometer
c)
Pressure gauge
d)
Venturi meter
14.
Is the distance between the center of pressure and the centroid.
a)
Metacenter
b)
Center of Buoyancy
c)
Eccentricity
d)
Center of Gravity
15.
Formula for the statistical moment with respect to the water surface.
a)
Ay
b)
Ig
c)
F/A
d)
gh
16.
The force on the projection of that surface on a vertical plane perpendicular to the given direction.
a)
Ay
b)
Fh
c)
Fv
d)
gh
17.
The weight considering the fluid enclosed by the curved surface and vertical projection lines extending to the free surface.
a)
Ay
b)
Fh
c)
Fv
d)
gh
18.
It is a barrier that stops or restricts the flow of water or underground streams.
a)
Dams
b)
Reservoir
c)
Hydraulic Structures
d)
Irrigation Canals
19.
It is a 200-meter-tall, 1.2 kilometer long embankment dam on the Agno River.
a)
Agno Dam
b)
Pantabangan Dam
c)
La Mesa Dam
d)
San Roque Dam
20.
The top of the Dam.
a)
Core Membrane
b)
Freebord
c)
Crest
d)
Spillway
21.
Portion of Dam in contact with ground or river-bed at upstream side.
a)
Heel
b)
Toe
c)
Crest
d)
Spillway
22.
Portion of dam in contact with ground or river-bed at downstream side.
a)
Heel
b)
Toe
c)
Crest
d)
Spillway
23.
The valley slopes on either side of the dam wall to which the left & right end of dam are fixed to.
a)
Heel
b)
Sluiceway
c)
Abutmet
d)
Spillway
24.
Opening in the dam near the base, provided to clear the silt accumulation in the reservoir.
a)
Heel
b)
Sluiceway
c)
Abutmet
d)
Spillway
25.
The space between the highest level of water in the reservoir and the top of the dam.
a)
Core Membrane
b)
Freebord
c)
Crest
d)
Spillway
26.
The resultant of the pressure acting in a vertical upward direction all over a wetted surface of a body floating in a fluid.
a)
Buoyancy
b)
Uplift Pressure
c)
Weight of the Dam
d)
Vertical Force
27.
It states that the buoyant force is equal to the displaced water.
a)
Phytagorean Theorem
b)
Pressure on Vertical Walls
c)
Seepage
d)
Archmede's Principle
28.
It is the largest dam in the Philippines and sixteenth largest in the world.
a)
San Roque dam
b)
Pantabangan Dam
c)
La Mesa Dam
d)
Agno Dam
29.
It is the arrangement made (kind of passage) near the top of dam for the passage of surplus/ excessive water from the reservoir.
a)
Core Membrane
b)
Freebord
c)
Crest
d)
Spillway
30.
Level or gently sloping tunnel like passage (small room like space) at transverse or longitudinal within the dam with drain on floor for seepage water.
a)
Toe Drain
b)
Gallery
c)
Crest
d)
Spillway
31.
Tunnel constructed to divert or change the direction of water to bypass the dam construction site.
a)
Seepage line
b)
Gallery
c)
Diversion Tunnel
d)
Spillway
32.
The ratio of the statustical moment and Moment of Inertia.
a)
Eccentricity
b)
Metacentric Height
c)
Unit weight
d)
Inertia Force
33.
Weight of the fluid enclosed by the curved surface and vertical projection lines extending to the free surface.
a)
Resultant
b)
Inclined Hydrostatic Force
c)
Horizontal Hydrostatic Force
d)
Vertical Hydrostatic Force
34.
The ability of a liquid to flow in narrow spaces without the assistance of or even in opposition to external forces like gravity.
a)
Elasticity
b)
Tension Force
c)
Capillarity
d)
Surface Tension
35.
The fluid of volume V at pressure P decreased its volume by ∆V due to the further increase in pressure by ∆P.
a)
Elasticity
b)
Bulk Modulus of Elasticity
c)
Capillarity
d)
Surface Tension
36.
Reciprocal of the bulk modulus of elasticity.
a)
Elasticity
b)
Bulk Modulus of Elasticity
c)
Capillarity
d)
Compressibility
37.
What is the mass density of water at 0 degree C, in kg.m3
a)
999.8
b)
1000
c)
999.7
d)
999.5
38.
What is th unit weight of water at 4℃ in N/m3.
a)
1000
b)
62.4
c)
9800
d)
9810
39.
What is th unit weight of water at 20℃ in N/m3.
a)
9790
b)
62.4
c)
9800
d)
9810
40.
What is th unit weight of water at 4℃ in lb/ft3.
a)
1000
b)
62.4
c)
9800
d)
9810
41.
0.1Pa-s is equivalent to?
a)
1 poise
b)
1 Pascal
c)
1 Newton
d)
1 kg
42.
What is the unit of Kinematic Viscosity?
a)
Newton
b)
Pascal
c)
Poise
d)
stoke
43.
What is the atmospheric pressure in psi?
a)
14.7
b)
101.325
c)
62.4
d)
9810
44.
Which is not a type of dam?
a)
Gravity dam
b)
Butress dam
c)
Arch dam
d)
Groin
45.
Which statement is not true?
a)
Bouyant force is upwards.
b)
Weight is always downwards
c)
Uplift pressure is buoyancy.
d)
No buoyant force in river.
46.
It is the result of cohesive forces between similar molecules.
a)
Surface Tension
b)
Cohesion
c)
Specific weight
d)
density
47.
The ratio of the righting moment and the overturning moment.
a)
Factor of safety against sliding
b)
Factor of safety against overturning
c)
Friction
d)
Strength
48.
Which is not considered a Case Analysis of a dam?
a)
Neglicting Hydrostatic Uplift
b)
Considering Hydrostatic Uplift
c)
Overflowing Dam
d)
Dam with no water on the upstrem and downstream.
49.
Which among the condition is safe for dams?
a)
Resultant at the middle thirds
b)
Resultant at the first thirds
c)
Resultant at the toe
d)
Resultant at the hill
50.
Which statement is true in computing the Normal force acting at the base.
a)
Subtract the uplift force to the total weight.
b)
Neglict the Hydrostatic Uplift
c)
Disregard the hydrostatic pressure
d)
Compute the eccentricy.
100 %
