Physics GK 09 - Pressure

1. Which of the following is the correct equivalent of 1 atmosphere?
[A] 1 atmosphere = 1.013 × 105Pa
[B] 1 atmosphere = 1.013 × 104Pa
[C] 1 atmosphere = 1.013 × 103Pa
[D] 1 atmosphere = 1.013 × 102Pa

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2. Who invented mercury barometer?
[A] Blaise Pascal
[B] Daniel Bernoulli
[C] Albert Einstein
[D] Evangelista Torricelli

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3. What is the device used to measure the flow speed of incompressible called as?
[A] Torri-meter
[B] Bernoulli-meter
[C] Hydro-meter
[D] Venturi-meter

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4. Which of the following equation represents the Torricelli’s law?
[A] (2gh)1/2
[B] √3 gh
[C] √2 gh
[D] 2gh

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5. On which of the following principles is Hydraulic lift based?
[A] Pascal law
[B] Bernoulli’s principle
[C] Stoke’s law
[D] Torricelli’s law

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6. Which of the following has no effect on the pressure beneath the surface of a liquid?
[A] Area of the liquid surface
[B] Density of the liquid
[C] Strength of the gravitational field
[D] Depth of the liquid

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7. Which of the following represents Pressure?
[A] Force/Density
[B] Force x Area
[C] Force/Area
[D] Force/ Acceleration

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8. Which of the following is correct about Pressure?
[A] Pressure is a scalar quantity
[B] Pressure is a vector quantity
[C] Pressure is a scalar quantity but obeys vector laws
[D] None of the above

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9. What is the S.I unit of Pressure?
[A] N/Kg m2
[B] N/m
[C] N/m3 s
[D] N/m2

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10. Which of the following statements about Pressure and Stress is NOT correct?
[A] Pressure is always normal to the area
[B] Pressure is always compressive in nature
[C] Stress can be normal or tangential to the area
[D] Stress is always compressive in nature

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