Euler’s dimensionless number relates the following__________________?

Related Mcqs:

1. An ideal flow of any fluid must fulfill the following____________________?

   A. Newton’s law of motion
   B. Newton’s law of viscosity
   C. Pascal’ law
   D. Continuity equation
   E. Boundary layer theory

2. A one dimensional flow is one which_________________?

   A. is uniform flow
   B. is steady uniform flow
   C. takes place in straight lines
   D. involves zero transverse component of flow
   E. takes place in one dimension

3. The units of dynamic or absolute viscosity are__________________?

   A. metres2 per sec
   B. kg sec/meter
   C. newton-sec per meter
   D. newton-sec2 per meter
   E. none of the above

4. Choose the wrong statement ?

   A. any weight, floating or immersed in a liquid, is acted upon by a buoyant force
   B. Buoyant force is equal to the weight of the liquid displaced
   C. The point through which buoyant force acts, is called the center of buoyancy
   D. Center of buoyancy is located above the center of gravity of the displaced liquid v
   E. Relative density of liquids can be determined by means of the depth of flotation of hydrometer

5. An ideal flow of any fluid must satisfy __________________?

   A. Pascal law
   B. Newton’s law of viscosity
   C. boundary layer theory
   D. continuity equation
   E. Bernoulli’s theorem

6. A hydraulic press has a ram of 15 cm diameter and plunger of 1.5 cm. It is required to lift a weight of 1 tonne. The force required on plunger is equal to_________________?

   A. 10 kg
   B. 100 kg
   C. 1000 kg
   D. 1 kg
   E. 10,000 kg

7. A piece of wood having weight 5 kg floats in water with 60% of its volume under the liquid. The specific gravity of wood is _________________?

   A. 0.83
   B. 0.6
   C. 0.4
   D. 0.3
   E. none of the above

8. A ship whose hull length is 100 m is to travel at 10 m/sec. For dynamic similarity, at what velocity should a 1:25 model be towed through water ?

   A. 10 m/sec
   B. 25 m/sec
   C. 2 m/sec
   D. 50 m/sec
   E. 250 m/sec

9. Mercury is often used in barometer because____________________?

   A. it is the best liquid
   B. the height of barometer will be less
   C. its vapour pressure is so low that it may be neglected
   D. both B. and C.
   E. it moves easily

10. The density of water is 1000 kg/m3 at__________________?

    A. 0°C
    B. 0°K
    C. 4°C D. 20°C
    E. all temperature