alleryStart learning →One bar of pressure is equal to how many pascals?
- 10 Pa
- 10^3 Pa
- 10^5 Pa
- 10^8 Pa
Show answer and solution
Correct answer: C. 10^5 Pa
A bar is defined as 100000 pascals, which is close to one standard atmosphere.
MHT-CET Mechanical Properties of Fluids — practice questions
Explore 81 free Mechanical Properties of Fluids questions in MHT-CET Physics. Open each question or exercise to read its content, reference answers and available explanation.
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Showing questions 1–30 of 81.
One bar of pressure is equal to how many pascals?Read the answer and worked solution →One torr, the same as 1 mm of mercury, equals about how many pascals?Read the answer and worked solution →Standard atmospheric pressure at sea level is close to which value?Read the answer and worked solution →Pressure in a fluid is best described as which kind of quantity?Read the answer and worked solution →Take g = 10 m/s^2 and water density 1000 kg/m^3. What is the gauge pressure at 10 m depth in a lake?Read the answer and worked solution →What does gauge pressure measure?Read the answer and worked solution →A tyre pressure gauge reads which kind of pressure?Read the answer and worked solution →In a mercury barometer, the column stands at about what height at sea level?Read the answer and worked solution →What fills the space above the mercury column in a barometer tube?Read the answer and worked solution →A hydraulic lift piston has 50 times the area of the small one. What force does 100 N give?Read the answer and worked solution →Hydraulic brakes in cars depend on which principle?Read the answer and worked solution →Water flows at 2 m/s in a pipe of area 4 cm^2 into a section of area 1 cm^2. What is the speed there?Read the answer and worked solution →Bernoulli's equation is essentially which law applied to fluid motion?Read the answer and worked solution →Bernoulli's equation fails for which type of flow?Read the answer and worked solution →Why can two streamlines in steady flow never cross?Read the answer and worked solution →Above the critical speed, streamline flow of a fluid becomes what?Read the answer and worked solution →In laminar flow, the velocities at different points have which feature?Read the answer and worked solution →What does the word efflux mean in Torricelli's law?Read the answer and worked solution →A tank has a small hole 5 m below the water surface. Take g = 10 m/s^2. What is the efflux speed?Read the answer and worked solution →A spinning cricket ball swerves from its parabolic path because of what?Read the answer and worked solution →Dynamic lift acts on a body by virtue of its what?Read the answer and worked solution →What are the dimensions of the coefficient of viscosity?Read the answer and worked solution →Which liquid is more viscous than water?Read the answer and worked solution →When the temperature of a liquid rises, its viscosity does what?Read the answer and worked solution →When a gas is heated, its coefficient of viscosity does what?Read the answer and worked solution →For fluid flowing in a pipe, where is the layer speed zero?Read the answer and worked solution →Viscous drag on a small sphere of radius a at speed v in a fluid of viscosity eta is given by which expression?Read the answer and worked solution →A falling raindrop reaches terminal velocity when what happens?Read the answer and worked solution →If a falling sphere's radius doubles in the same fluid, its terminal velocity becomes how many times?Read the answer and worked solution →Surface tension arises because surface molecules have what?Read the answer and worked solution →
Worked practice questions
One torr, the same as 1 mm of mercury, equals about how many pascals?
- 1.01 Pa
- 13.3 Pa
- 760 Pa
- 133 Pa
Show answer and solution
Correct answer: D. 133 Pa
One millimetre of mercury column exerts rho g h = 13600 x 9.8 x 0.001, which is about 133 Pa.
Standard atmospheric pressure at sea level is close to which value?
- 1.013 x 10^7 Pa
- 1.013 x 10^3 Pa
- 1.013 x 10^5 Pa
- 1.013 x 10^2 Pa
Show answer and solution
Correct answer: C. 1.013 x 10^5 Pa
One atmosphere is defined as about 101300 pascals, the mean pressure of air at sea level.
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