Q: What is forced flow? How does it differ from natural flow
What is forced flow? How does it differ from natural flow? Is flow caused by winds forced or natural flow?
See AnswerQ: Why are high compression ratios not used in spark-ignition engines
Why are high compression ratios not used in spark-ignition engines?
See AnswerQ: Consider a 0.15-mm-diameter air bubble in
Consider a 0.15-mm-diameter air bubble in a liquid. Determine the pressure difference between the inside and outside of the air bubble if the surface tension at the air–liquid interface is (a) 0.080 N...
See AnswerQ: An ideal Otto cycle with a specified compression ratio is executed using
An ideal Otto cycle with a specified compression ratio is executed using (a) air, (b) argon, and (c) ethane as the working fluid. For which case will the thermal efficiency be the highest? Why?
See AnswerQ: The surface tension of a liquid is to be measured using a
The surface tension of a liquid is to be measured using a liquid film suspended on a U-shaped wire frame with an 8-cm-long movable side. If the force needed to move the wire is 0.030 N, determine the...
See AnswerQ: How is the rpm (revolutions per minute) of an actual
How is the rpm (revolutions per minute) of an actual four-stroke gasoline engine related to the number of thermodynamic cycles? What would your answer be for a two-stroke engine?
See AnswerQ: A capillary tube of 1.2 mm diameter is immersed vertically
A capillary tube of 1.2 mm diameter is immersed vertically in water exposed to the atmosphere. Determine how high water will rise in the tube. Take the contact angle at the inner wall of the tube to b...
See AnswerQ: What is the difference between fuel-injected gasoline engines and diesel
What is the difference between fuel-injected gasoline engines and diesel engines?
See AnswerQ: A 0.018-in-diameter glass tube is inserted
A 0.018-in-diameter glass tube is inserted into mercury, which makes a contact angle of 140° with glass. Determine the capillary drop of mercury in the tube at 68°F.
See AnswerQ: A manometer measures a pressure difference as 40 inches of water.
A manometer measures a pressure difference as 40 inches of water. What is this pressure difference in pound force per square inch, psi?
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