1) According to Archimede's principle, if a body is immersed partially or fully in a fluid then the buoyancy force is _______ the weight of fluid displaced by the body.  Published on 05 Aug 15
a. equal to
b. less than
c. more than
d. unpredictable

2) What is the correct formula for absolute pressure?  Published on 05 Aug 15
a. P_{abs} = P_{atm} – P_{gauge}
b. P_{abs} = P_{vacuum} – P_{atm}
c. P_{abs} = P_{vacuum} + P_{atm}
d. P_{abs} = P_{atm}+ P_{gauge}

3) One litre of a certain fluid weighs 8N. What is its specific volume?  Published on 05 Aug 15
a. 2.03 x 10^{– 3} m^{3}/kg
b. 20.3 x 10^{– 3} m^{3}/kg
c. 12.3 x 10^{– 3} m^{3}/kg
d. 1.23 x 10^{– 3} m^{3}/kg

4) When is a liquid said to be not in a boiling or vaporized state?  Published on 05 Aug 15
a. If the pressure on liquid is equal to its vapour pressure
b. If the pressure on liquid is less than its vapour pressure
c. If the pressure on liquid is more than its vapour pressure
d. Unpredictable
Answer
Explanation
Related Ques

ANSWER: If the pressure on liquid is more than its vapour pressure
Explanation: No explanation is available for this question!


5) Bulk modulus is the ratio of  Published on 05 Aug 15
a. shear stress to volumetric strain
b. volumetric strain to shear stress
c. compressive stress to volumetric strain
d. volumetric strain to compressive stress

6) Which type of body is an airfoil?  Published on 05 Aug 15
a. streamline body
b. wave body
c. bluff body
d. induced body

7) The body whose surface does not coincide with the streamline when places in a flow is called as  Published on 05 Aug 15
a. streamline body
b. wave body
c. bluff body
d. induced body

8) The sum of components of shear forces in the direction of flow of fluid is called as  Published on 05 Aug 15
a. shear drag
b. friction drag
c. skin drag
d. all of the above

9) The component of the total force exerted by fluid on a body in the direction parallel to the direction of motion is called as  Published on 05 Aug 15
a. lift
b. drag
c. both a. and b.
d. none of the above

10) Boundary layer thickness is the distance from the boundary to the point where velocity of the fluid is  Published on 05 Aug 15
a. equal to 10% of free stream velocity
b. equal to 50% of free stream velocity
c. equal to 90% of free stream velocity
d. equal to 99% of free stream velocity
