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Hydraulic machines fluid mechanics
| 1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
| 2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
| Q1 ⇒ 1. Which of the following is demensionless specific gravity [other wrong options] [Discuss in forum] |
| Q2 ⇒ 2. The normal stress in a fluid will be constant in all directions at a point only if it is at rest. [other wrong options] [Discuss in forum] |
| Q3 ⇒ 3. The pressure at a point in a fluid will not be same in all the directions when the fluid is viscous and moving. [other wrong options] [Discuss in forum] |
| Q4 ⇒ 4. An object having 10 kg mass weighs 9.81kg on a spring balance. The value of 'g' at this place is 10m/sec2 [other wrong options] [Discuss in forum] |
| Q5 ⇒ 5. The tendency of a liquid surface to contract is due to the following property surface tension [other wrong options] [Discuss in forum] |
| Q6 ⇒ 6. The surface tension of mercury at normal temperature compared to that of water is more [other wrong options] [Discuss in forum] |
| Q7 ⇒ 7. A perfect gas none of the above. [other wrong options] [Discuss in forum] |
| Q8 ⇒ 8. For very great pressures, viscosity of moss gases and liquids shows erratic behaviour [other wrong options] [Discuss in forum] |
| Q9 ⇒ 3. A fluid in equilibrium can't sustain shear stress [other wrong options] [Discuss in forum] |
| Q10 ⇒ 4. Viscosity of water in comparison to mercury is higher [other wrong options] [Discuss in forum] |
| Q11 ⇒ 5. The bulk modulus of elasticity with increase in pressure increases [other wrong options] [Discuss in forum] |
| Q12 ⇒ 6. The bulk modulus of elasticity increases with pressure [other wrong options] [Discuss in forum] |
| Q13 ⇒ 7. A balloon lifting in air follows the following principle all of the above [other wrong options] [Discuss in forum] |
| Q14 ⇒ 8. The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to 21,000. [other wrong options] [Discuss in forum] |
| Q15 ⇒ 9. The increase of temperature results in decrease in viscosity of liquid [other wrong options] [Discuss in forum] |
| Q16 ⇒ 0. Surface tension has the units of new tons/m [other wrong options] [Discuss in forum] |
| Q17 ⇒ 1. Surface tension acts in the plane of the interface normal to any line in the surface [other wrong options] [Discuss in forum] |
| Q18 ⇒ 2. The stress-strain relation of the newtoneon fluid is linear [other wrong options] [Discuss in forum] |
| Q19 ⇒ 4. The units of viscosity are kg sec/metre [other wrong options] [Discuss in forum] |
| Q20 ⇒ 5. Kinematic viscosity is dependent upon density. [other wrong options] [Discuss in forum] |
| Or |