CHAPTER 3: Total Hydrostatic Force

Question 1

The ___________ of the total hydrostatic force on any surface is equal
to the pressure on the vertical projection of that surface.

Answer 1

horizontal component

Question 2

The __________ of the total hydrostatic force on any surface is equal to
the weight of either real or imaginary liquid above it.

Answer 2

vertical component

Question 3

These are structures
that block the flow of a
river, stream or other
waterway.

Answer 3

dams

Question 4

Dams formed out of loose
rock, earth or a
combination of these
materials

Answer 4

Embankment Dam

Question 5

Dams that use only the force
of gravity to resist
water pressure

Answer 5

gravity dams

Question 6

concrete or masonry
structures that
curve upstream into
a reservoir,
stretching from one
wall of a river
canyon to the other.

Answer 6

arch dam

Question 7

consists of a wall,
or face, supported
by several
buttresses on the
downstream side

Answer 7

buttress dam

Question 8

any upward pressure applied to
a structure that has the
potential to raise it relative
to its surroundings

Answer 8

Uplift force

Question 9

resultant moment that
may cause the rotation
or overturning of the
dam, in the toe.

Answer 9

OVERTURNING MOMENT

Question 10

the distance of Ry from the centerline
of the base

Answer 10

eccentricity