Chapter Exam

Unit 11: Mechanical Properties of Fluids — Online MCQ Test

Q: Which law states that pressure applied to an enclosed fluid is transmitted equally and undiminished in all directions?

Answer: B. Pascal's law — Pascal's law describes the transmission of pressure in a confined fluid equally in all directions.

Q: The SI unit of coefficient of viscosity is:

Answer: B. Pa s — The coefficient of viscosity is measured in pascal-second (Pa s) in SI units.

Q: Why does atmospheric pressure decrease as altitude increases?

Answer: B. The weight of the air column above decreases — At higher altitudes, there is less air above, so the weight of the air column and hence pressure decrease.

Q: A liquid does not wet a glass tube. Which statement is correct?

Answer: B. The liquid level is depressed in the tube — If a liquid does not wet glass, cohesion dominates and the liquid surface is depressed, not raised.

PHYSICS · CLASS 11 INTERMEDIATE 1 YEAR · Telangana State Board

Practice Unit 11: Mechanical Properties of Fluids with a free chapter-wise online MCQ test for Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR PHYSICS. This chapter covers: Focusing on fluid dynamics this chapter details pressure variation with depth Pascal law Archimedes principle viscosity Stokes law Reynolds number Bernoulli principle surface tensi.... AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

20m

Time Limit

Attempts Left

10 random questions from this chapter (mixed difficulty)
Questions you've seen before won't repeat until the pool resets
You have 20 minutes — exam auto-submits when time is up
Maximum 3 attempts per chapter
Results and explanations shown immediately after submission

New here? Register free — includes 3 free chapter exams.

Unit 11: Mechanical Properties of Fluids — Important Questions & Answers (FAQ)

Frequently asked questions from Telangana State Board CLASS 11 INTERMEDIATE 1 YEAR PHYSICS — Unit 11: Mechanical Properties of Fluids, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which law states that pressure applied to an enclosed fluid is transmitted equally and undiminished in all directions?

A. Archimedes' principle
B. Pascal's law ✓
C. Bernoulli's principle
D. Stokes' law

Answer: B. Pascal's law
Pascal's law describes the transmission of pressure in a confined fluid equally in all directions.

The SI unit of coefficient of viscosity is:

A. N m
B. Pa s ✓
C. N/m
D. J s

Answer: B. Pa s
The coefficient of viscosity is measured in pascal-second (Pa s) in SI units.

Why does atmospheric pressure decrease as altitude increases?

A. Air becomes denser at higher altitudes
B. The weight of the air column above decreases ✓
C. Gravity becomes zero at high altitude
D. Air pressure is independent of height

Answer: B. The weight of the air column above decreases
At higher altitudes, there is less air above, so the weight of the air column and hence pressure decrease.

Which of the following statements is NOT correct about fluids in steady flow?

A. The total mechanical energy along a streamline remains constant
B. Pressure may decrease when speed increases
C. Fluid speed is the same at every point in a streamline ✓
D. Bernoulli's equation is applicable along a streamline

Answer: C. Fluid speed is the same at every point in a streamline
In steady flow, speed can vary from point to point along a streamline; it need not remain the same.

A liquid does not wet a glass tube. Which statement is correct?

A. The liquid rises in the tube due to capillarity
B. The liquid level is depressed in the tube ✓
C. The contact angle is less than 90°
D. The adhesion force is greater than cohesion force

Answer: B. The liquid level is depressed in the tube
If a liquid does not wet glass, cohesion dominates and the liquid surface is depressed, not raised.

← Previous Chapter

Unit 10: Mechanical Properties of Solids

Next Chapter →

Unit 12: Thermal Properties of Matter