NEET Physics: Mechanical Properties of Fluids — MCQ Test 2

Q6. An aircraft (\( m = 3.0 \times 10^5 \, \text{kg} \), wing area \( 450 \, \text{m}^2 \)) flies level. What is the pressure difference across the wings? (Take \( g = 10 \, \text{m/s}^2 \))

Q7. Water (\( \rho = 1000 \, \text{kg/m}^3 \)) flows horizontally at \( 2.8 \, \text{m/s} \) with pressure \( 1.9 \times 10^5 \, \text{Pa} \). If the speed increases to \( 5.2 \, \text{m/s} \), what is the new pressure?

Q8. Which of the following statements is correct about the equation of continuity?

Q9. A soap bubble of radius \( 15 \, \text{mm} \) has a surface tension of \( 0.023 \, \text{N/m} \). What is the excess pressure inside?

Q10. What property of a fluid does the coefficient of viscosity measure?

Q11. Water (\( \rho = 1000 \, \text{kg/m}^3 \)) flows horizontally at \( 4.5 \, \text{m/s} \) with pressure \( 2.0 \times 10^5 \, \text{Pa} \). If the speed increases to \( 7.0 \, \text{m/s} \), what is the new pressure?

Q12. A manometer with seawater (\( \rho = 1.03 \times 10^3 \, \text{kg/m}^3 \)) shows a height difference of \( 0.19 \, \text{m} \). What is the pressure difference? (Take \( g = 10 \, \text{m/s}^2 \))

Q13. A capillary tube of radius \( 0.55 \, \text{mm} \) is dipped in water (\( S = 0.0727 \, \text{N/m} \), \( \rho = 1000 \, \text{kg/m}^3 \), \( \cos \theta = 1 \)). What is the capillary rise? (Take \( g = 10 \, \text{m/s}^2 \))

Q14. What is the excess pressure inside an oxygen drop of radius \( 0.5 \, \text{mm} \) at \( -183^\circ \text{C} \)? (Surface tension = \( 0.0132 \, \text{N/m} \))

Q15. What is the gauge pressure at a depth of \( 4.5 \, \text{m} \) in ethyl alcohol (\( \rho = 806 \, \text{kg/m}^3 \))? (Take \( g = 10 \, \text{m/s}^2 \))

NEET Physics — Mechanical Properties of Fluids

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A plate of area \( 0.06 \, \text{m}^2 \) moves at \( 0.6 \, \text{m/s} \) over a \( 0.4 \, \text{mm} \) thick glycerine film (\( \eta = 0.83 \, \text{Pa s} \)). What force is required?

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About this NEET MCQ Test

This page provides a free online MCQ test for NEET Physics preparation, focusing specifically on the chapter Mechanical Properties of Fluids. It contains 15 carefully selected multiple-choice questions (MCQs) designed to test your conceptual understanding and exam readiness.

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Key concepts covered in this specific test include Glycerine, Required, Supports, Hydraulic, Pressure, and Statement.

Taking these timed MCQ tests helps you simulate the real NEET exam environment. Detailed step-by-step explanations are provided for every question to help you learn from your mistakes and strengthen your fundamentals.

Preview of Questions in this Test

Q1. A plate of area \( 0.06 \, \text{m}^2 \) moves at \( 0.6 \, \text{m/s} \) over a \( 0.4 \, \text{mm} \) thick glycerine film (\( \eta = 0.83 \, \text{Pa s} \)). What force is required?

  • A. 60 N
  • B. 70 N
  • C. 74.7 N
  • D. 80 N

Q2. A soap film supports \( 3.6 \times 10^{-2} \, \text{N} \) over a \( 60 \, \text{cm} \) slider. What is the surface tension?

  • A. 0.025 N/m
  • B. 0.028 N/m
  • C. 0.030 N/m
  • D. 0.033 N/m

Q3. A hydraulic system applies \( 150 \, \text{N} \) on a small piston of area \( 0.015 \, \text{m}^2 \). What force is exerted by a large piston of area \( 0.075 \, \text{m}^2 \)?

  • A. 600 N
  • B. 700 N
  • C. 750 N
  • D. 800 N

Q4. What is the excess pressure inside an ethanol drop of radius \( 1.5 \, \text{mm} \) at \( 20^\circ \text{C} \)? (Surface tension = \( 0.0227 \, \text{N/m} \))

  • A. 15 Pa
  • B. 30 Pa
  • C. 45 Pa
  • D. 60 Pa

Q5. Which statement is incorrect about hydraulic systems?

  • A. They use incompressible fluids
  • B. Pressure is transmitted equally
  • C. They use highly compressible fluids
  • D. Force is amplified by area ratio

+ 10 more questions in the actual test

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