1. Which statement concerning heat and/or temperature is true?

Natural Science - Basic Physics

Quiz
•
Science
•
University
•
Hard
Sino Ako
Used 1+ times
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29 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The speed of sound in the atmosphere energy of the molecules of any substance
There is an inverse relationship between temperature and heat
Temperature is a measure of the kinetic energy of the molecules of any substance
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2. The boiling point of a given liquid varies
Directly with pressure
Inversely with pressure
Directly with density
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3. If a double acting actuating cylinder in a 3000 psi system has a piston with a surface rea of three square inches on the extension side, and a rod with a cross-section area of one square inch attached to the piston on the other side, approximately how much force will the actuator be able to produce when retracting?
9,000 pounds
6,000 pounds
3,000 pounds
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
4. Which is the ratio of the water vapor actually present in the atmosphere to the amount that would be present if the air were saturated at the prevailing temperature and pressure
Absolute humidity
Relative humidity
Dewpoint
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
5. An airplane wing is designed to produce lift resulting from
A positive air pressure below and above the wing’s surface along with the downward deflection of air
Positive air pressure below the wing’s surface and negative air pressure above the wing’s surface along with the downward deflection of air.
Negative air pressure below the wing’s surface and positive air pressure above the wing’s surface along with the downward defection of air.
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
6. If the volume of a confined gas is doubled (without the addition of more gas), the pressure will (assume the temperature remains constant)
Increase In direct proportion to the volume increase
Remain the same
Be reduced to one half its original value
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
7. If all or a significant part of a stall strip is missing on an airplane wing, a likely result will be.
Asymmetrical lateral control at a near stall angles of attack
Decreased lift In the area of installation at high angles
Asymmetrical lateral control at low angles of attack.
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