Physics GK 09 - Pressure

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1).
Which of the following is the correct equivalent of 1 atmosphere?
2).
Who invented mercury barometer?
3).
What is the device used to measure the flow speed of incompressible called as?
4).
Which of the following equation represents the Torricelli's law?
5).
On which of the following principles is Hydraulic lift based?
6).
Which of the following has no effect on the pressure beneath the surface of a liquid?
7).
Which of the following represents Pressure?
8).
Which of the following is correct about Pressure?
9).
What is the S.I unit of Pressure?
10).
Which of the following statements about Pressure and Stress is NOT correct?
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
2. Who invented mercury barometer?
[A] Blaise Pascal
[B] Daniel Bernoulli
[C] Albert Einstein
[D] Evangelista Torricelli
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
4. Which of the following equation represents the Torricelli’s law?
[A] (2gh)1/2
[B] √3 gh
[C] √2 gh
[D] 2gh
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
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
7. Which of the following represents Pressure?
[A] Force/Density
[B] Force x Area
[C] Force/Area
[D] Force/ Acceleration
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
9. What is the S.I unit of Pressure?
[A] N/Kg m2
[B] N/m
[C] N/m3 s
[D] N/m2
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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