Choose the correct answer An oil droplet in gas tends to move vertically downward because of the drag force, Fd exerting by oil droplet. is less in density than the gas. tends to move vertically downward because of the drag force, Fd exerting by gas. tends to move vertically upward because of the drag force, Fd exerting by oil droplets. tends to move vertically downward because of the gravity force. exerts a drag force, Fd, on the gas in the same direction of the gravitational force, Fg. exerts a drag force, Fd, on the gas in the oppisite direction of the gravitational force, Fg. In the electrical emulsion treatment, A. high-voltage field makes the water droplets vibrate rapidly, causing the stabilizing film to be tight. B. high-voltage field makes the water droplets vibrate slowly, causing the stabilizing film to weaken and break. C. high-voltage field makes the water droplets vibrate slowly, causing the stabilizing film to be tight. D. high-voltage field makes the water droplets vibrate rapidly, causing the stabilizing film to weaken and break. In chemical treatment to separate emulsion, excessive amounts of chemicals A. affect positively on the separation of emulsion. B. would lead to breakable emulsion easily. C. would lead to unbreakable emulsion. D. would lead to unnecessary additional operating cost. E. do not affect.
Choose the correct answer An oil droplet in gas tends to move vertically downward because of the drag force, Fd exerting by oil droplet. is less in density than the gas. tends to move vertically downward because of the drag force, Fd exerting by gas. tends to move vertically upward because of the drag force, Fd exerting by oil droplets. tends to move vertically downward because of the gravity force. exerts a drag force, Fd, on the gas in the same direction of the gravitational force, Fg. exerts a drag force, Fd, on the gas in the oppisite direction of the gravitational force, Fg. In the electrical emulsion treatment, A. high-voltage field makes the water droplets vibrate rapidly, causing the stabilizing film to be tight. B. high-voltage field makes the water droplets vibrate slowly, causing the stabilizing film to weaken and break. C. high-voltage field makes the water droplets vibrate slowly, causing the stabilizing film to be tight. D. high-voltage field makes the water droplets vibrate rapidly, causing the stabilizing film to weaken and break. In chemical treatment to separate emulsion, excessive amounts of chemicals A. affect positively on the separation of emulsion. B. would lead to breakable emulsion easily. C. would lead to unbreakable emulsion. D. would lead to unnecessary additional operating cost. E. do not affect.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Choose the correct answer
An oil droplet in gas
tends to move vertically downward
because of the drag force, Fd exerting by
oil droplet.
is less in density than the gas.
tends to move vertically downward
because of the drag force, Fd exerting by
gas.
tends to move vertically upward because
of the drag force, Fd exerting by oil
droplets.
tends to move vertically downward
becaus e of the gravity force.
exerts a drag force, Fd, on the gas in the
same direction of the gravitational force,
Fg.
exerts a drag force, Fd, on the gas in the
oppisite direction of the gravitational force,
Fg.
In the electrical emulsion treatment,
A. high-voltage field makes the water droplets vibrate rapidly, causing the stabilizing film to be
tight.
B. high-voltage field makes the water droplets vibrate slowly, causing the stabilizing film to
weaken and break.
C. high-voltage field makes the water droplets vibrate slowly, causing the stabilizing film to be
tight.
D. high-voltage field makes the water droplets vibrate rapidly, causing the stabilizing film to
weaken and break.
In chemical treatment to separate emulsion, excessive amounts of chemicals
A. affect positively on the separation of emulsion.
B. would lead to breakable emulsion easily.
C. would lead to unbreakable emulsion.
D. would lead to unnecessary additional operating cost.
E. do not affect.
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