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

Related Mcqs:

1. 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

2. The velocity of jet of water travelling out of opening in a tank filled with water is proportional to_________________?

   A. head of water (h)
   B. h2
   C. V/T
   D. h2
   E. h3/1

3. 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

4. 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

5. 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

6. According to the principle of buoyancy a body totally or partially immersed in a fluid will be lifted up by a force equal to_________________?

   A. the weight of the body
   B. more than the weight of the body
   C. less than the weight of the body
   D. weight of the fluid displaced by the body
   E. weight of body plus the weight of the fluid displaced hy the body

7. If partial pressure of air and steam be pa and ps respectively in a condenser, then according to Dalton’s law, the pressure in condenser is equal to__________________?

   A. Ps-Pa
   B. pa-ps
   C. Pa+P
   D. non of these

8. 1 kg.m is equal to_________________?

   A. 9.81 Joules
   B. All Joules
   C. 427 Joules
   D. 102 Joules
   E. 539 Joules

9. Mechanical equivalent of heat for 1 kcal or Joule’s equivalent is equal to_________________?

   A. 421 kgm
   B. 421 kgm
   C. 539 kgm
   D. 102 kgm
   E. 75 kgm

10. Natural water circulation, by convection in water tube boilers, with increase in pressure of boiler _________________?

    A. increases
    B. decreases
    C. remains unaffected
    D. first increases and then decreases
    E. first decreases and then increases