NEET Physics: Mechanical Properties of Fluids — MCQ Test 1

Q6. A soap bubble of radius \( 9 \, \text{mm} \) has a surface tension of \( 0.026 \, \text{N/m} \). What is the excess pressure inside?

Q7. What prevents a fluid from flowing when the pressure gradient is zero?

Q8. A soap bubble of radius \( 12 \, \text{mm} \) has a surface tension of \( 0.024 \, \text{N/m} \). What is the excess pressure inside?

Q9. A soap bubble of radius \( 4 \, \text{mm} \) has a surface tension of \( 0.025 \, \text{N/m} \). What is the excess pressure inside the bubble?

Q10. Water flows at \( 3 \, \text{m/s} \) at \( 2 \, \text{m} \) height with pressure \( 1.3 \times 10^5 \, \text{Pa} \). What is the pressure at \( 0 \, \text{m} \) height with speed \( 4 \, \text{m/s} \)? (\( \rho = 1000 \, \text{kg/m}^3 \), \( g = 10 \, \text{m/s}^2 \))

Q11. An aircraft (\( m = 2.5 \times 10^5 \, \text{kg} \), wing area \( 500 \, \text{m}^2 \)) flies level. What is the pressure difference across the wings? (Take \( g = 9.8 \, \text{m/s}^2 \))

Q12. A horizontal pipe carries water (\( \rho = 1000 \, \text{kg/m}^3 \)) at \( 2 \, \text{m/s} \) and \( 1.4 \times 10^5 \, \text{Pa} \). If the speed becomes \( 5 \, \text{m/s} \), what is the pressure?

Q13. Water flows at \( 2.0 \, \text{m/s} \) at \( 1.5 \, \text{m} \) height with pressure \( 1.65 \times 10^5 \, \text{Pa} \). What is the pressure at \( 0.2 \, \text{m} \) height with speed \( 3.0 \, \text{m/s} \)? (\( \rho = 1000 \, \text{kg/m}^3 \), \( g = 9.8 \, \text{m/s}^2 \))

Q14. Why does the velocity of a fluid layer in contact with a stationary surface become zero?

Q15. What is the primary reason gases are more compressible than liquids?

NEET Physics — Mechanical Properties of Fluids

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1Question 1 of 15
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A sphere of radius \( 0.07 \, \text{m} \) moves at \( 0.14 \, \text{m/s} \) through honey (\( \eta = 0.2 \, \text{Pa s} \)). What is the viscous drag force?

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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 Hydraulic, Fundamental, Difference, Pressure, Absolute, and Atmospheric.

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 sphere of radius \( 0.07 \, \text{m} \) moves at \( 0.14 \, \text{m/s} \) through honey (\( \eta = 0.2 \, \text{Pa s} \)). What is the viscous drag force?

  • A. 0.03 N
  • B. 0.036 N
  • C. 0.04 N
  • D. 0.045 N

Q2. A hydraulic press applies \( 200 \, \text{N} \) on a small piston of area \( 0.01 \, \text{m}^2 \). What force is exerted by a large piston of area \( 0.04 \, \text{m}^2 \)?

  • A. 600 N
  • B. 700 N
  • C. 800 N
  • D. 900 N

Q3. What is the fundamental difference between gauge pressure and absolute pressure?

  • A. Gauge pressure includes viscosity
  • B. Absolute pressure includes atmospheric pressure
  • C. Gauge pressure is always higher
  • D. Absolute pressure excludes depth

Q4. What is the total pressure at a depth of \( 2.8 \, \text{m} \) in whole blood (\( \rho = 1.06 \times 10^3 \, \text{kg/m}^3 \)) with atmospheric pressure \( 1.01 \times 10^5 \, \text{Pa} \)? (Take \( g = 9.8 \, \text{m/s}^2 \))

  • A. 1.28 × 10⁵ Pa
  • B. 1.30 × 10⁵ Pa
  • C. 1.32 × 10⁵ Pa
  • D. 1.34 × 10⁵ Pa

Q5. A hydraulic lift raises a \( 1900 \, \text{kg} \) load using a small piston of radius \( 4.5 \, \text{cm} \) and a large piston of radius \( 18 \, \text{cm} \). What force is applied on the small piston? (Take \( g = 9.8 \, \text{m/s}^2 \))

  • A. 1000 N
  • B. 1100 N
  • C. 1164 N
  • D. 1200 N

+ 10 more questions in the actual test

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