1-35.
1-36.
1-37.
1-38.
1-39.
Water flows through a pipe of 5
square-inch cross section at the
velocity of 3 feet per second
(fps).
At what velocity does it
flow through a constriction in
the pipe with a cross section of
3 square inches?
1.
1.8 fps
2.
3.0 fps
3.
3.6 fps
4.
5.0 fps
Two pistons with different cross-
sectional areas will travel at
the same speed as long as the
rate of fluid flow into their
cylinders is identical.
1.
True
2.
False
In streamline flow, each particle
of fluid moves in what manner?
1.
In uniform helical swirls
2.
In parallel layers
3.
At a velocity proportional to
the cross-sectional area of
the pipe
4.
At the same velocity in the
center of the pipe as along
the walls
Losses due to friction increase
with velocity at a higher rate in
turbulent flow than in streamline
flow.
1.
True
2.
False
What is inertia of fluids in a
power system?
1.
The resistance of the fluid
to movement or change of rate
of movement
2.
The force required to
maintain the fluid at
constant velocity
3.
The capacity to move and
change rate of flow
4.
The force required to
overcome friction
1-40.
Neglecting friction, how much
force is required to accelerate 3
pounds of fluid from rest to a
velocity of 322 feet per second
in 2 seconds?
1.
1.5 pounds
2.
3.0 pounds
3.
15
pounds
4.
30
pounds
ANSWER QUESTIONS 1-41 THROUGH 1-45 AS
TRUE OR FALSE BASED ON THE RELATIONSHIP
OF FORCE, PRESSURE, AND HEAD.
1-41.
1-42.
1-43.
1-44.
1-45.
1-46.
Head is a statement of force per
unit area.
1.
True
2.
False
Velocity head
energy caused
1.
True
2.
False
is the loss of
by inertia.
Gravity head depends on which
portions of the system are
exposed to open air.
1.
True
2.
False
Friction head cannot exist
without velocity head.
1.
True
2.
False
There can be no static head if
the fluid is in motion.
1.
True
2.
False
Which factors affecting fluid
action are classified as static
factors?
1.
Applied forces, inertia, and
friction
2.
Atmospheric pressure, applied
forces , and inertia
3.
Gravity, applied forces, and
friction
4.
Gravity, atmospheric
pressure, and applied forces
5