NOTE: These problems were closedbook, closednotes, no calculator, but an equation sheet was provided
1
. Some
true/false
problems. Circle T or F (1 point each,
no partial credit
):
T
F The
vapor pressure
P
v
of a pure substance is equal to the
saturation pressure
P
sat
of the liquid (
P
v
=
P
sat
).
T
F The primary dimensions of
surface tension
σ
s
are the same as the primary dimensions of
acceleration
.
T
F In certain situations, the
irreversible head loss
term in the energy equation can be
negative
.
T
F A
barometer
can be used to measure the difference in pressure between two locations in a fluid flow.
T
F If the
center of gravity
of a submerged body is directly below the
center of buoyancy
of the body, it is stable.
T
F In steady flow,
streamlines
,
streaklines
, and
timelines
are coincident (i.e., they lie on the same curves).
2
. Some
multiple choice
problems. Circle the most correct response (3 points each,
no partial credit
):
h
Air,
ρ
air
Liquid,
ρ
P
atm
1
2
D
A small diameter tube is inserted into a tank of liquid as sketched. The liquid rises in the tube
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 Fall '05
 CIMBALA
 Fluid Dynamics, Surface tension, Table tennis, partial credit

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