A pressure of 25 m of head of water is equal to________________?

Related Mcqs:

1. The pressure in Pascals at a depth of 1 m below the free surface of a body of water will be equal to________________?

   A. 1 Pa
   B. 91Pa
   C. 981 Pa
   D. 9810 Pa
   E. 98,100 Pa

2. The total pressure force on a plane area is equal to the area multiplied by the intensity of pressure at the centriod, if __________________?

   A. the area is horizontal
   B. the area is vertical
   C. the area is inclined
   D. all of the above
   E. none of the above

3. 4-61. Kinematic viscosity is equal to________________?

   A. dynamic viscosity/density
   B. dynamicviscosity x density
   C. density/dynamic viscosity
   D. 1/dynamicviscosity x density
   E. same as dynamic viscosity

4. The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to _________________?

   A. 1000
   B. 2100
   C. 2700
   D. 10,000
   E. 21,000.

5. A rainfall may be classified as acidic if its pH value is less or equal to________________?

   A. 6
   B. 7
   C. 5
   D. 6.5

6. The resultant upward pressure of a fluid on a floating body is equal to the weight of the fluid displaced by the body. This definition is according to____________________?

   A. Buoyancy
   B. Equilibrium of a floating body
   C. Archimedes’ principle
   D. Bernoulli’s theorem
   E. Metacentric principle

7. The center of pressure of a surface subjected to fluid pressure is the point____________________?

   A. on the surface at which resultant pres-sure acts
   B. on the surface at which gravitational force acis
   C. at which all hydraulic forces meet
   D. similar to metacentre
   E. where pressure equivalent to hydraulic thrust will act

8. If the atmospheric pressure on the surface of an oil tank (sp. gr. 0.8) is 0.2 kg/cm”, the pressure at a depth of 50 m below the oil surface will be _____________________?

   A. 2 meters of water column
   B. 3 meters of water column
   C. 5 meters of water column
   D. 6 meters of water Column
   E. 7 meters of water column

9. The pressure in the air space above an oil (sp. gr. 0.8) surface in a tank is 0.1 kg/cm”. The pressure at 2.5 m below the oil surface will be ___________________?

   A. 2 meters of water column
   B. 3 meters of water column
   C. 3.5 meters of water column
   D. 4 m of water column
   E. none of the above

10. Specific weight of water in S.I. units is equal to_________________?

    A. 1000 N/m3
    B. 10000 N/m3
    C. 9.81 xlO3 N/m3
    D. 9.81 xlO6N/m3
    E. 9.81 N/m3