A bucket of water is hanging from a spring balance. An iron piece is suspended into water without touching sides of bucket from another support. The spring balance reading will__________________?

Related Mcqs:

1. An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is___________________?

   A. 10m/sec2
   B. 9.81 m/sec2
   C. 10.2/m sec
   D. 9.75 m/sec2
   E. 9 m/sec .

2. A piece weighing 3 kg in air was found to weigh 2.5 kg when submerged in water. Its specific gravity is__________________?

   A. 1
   B. 5
   C. 7
   D. 6

3. 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

4. A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury ?

   A. the metal piece will simply float over the mercury
   B. the metal piece will be immersed in mercury by half
   C. whole of the metal piece will be immersed with its top surface just at mercury level
   D. metal piece will sink to the bottom
   E. none of the above

5. A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ?

   A. 0.5
   B. 0.4
   C. 0.515
   D. 0.5
   E. none of the above

6. To prevent settling down of sewage both at the bottom and on the sides of a large sewer, self-cleaning velocity recommended for Indian conditions, is_________________?

   A. 0.50 m/sec
   B. 0.60 m/sec
   C. 0.70 m/sec
   D. 0.75 m/sec

7. Specific weight of sea water is more that of pure water because it contains ________________?

   A. dissolved air
   B. dissolved salt
   C. suspended matter
   D. all of the above
   E. heavy water

8. An open vessel of water is accelerated up an inclined plane. The free water surface will___________________?

   A. be horizontal
   B. make an angle in direction of inclination of inclined plane
   C. make an angle in opposite direction to inclination of inclined plane
   D. any one of above is possible
   E. none of the above

9. 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.

10. As compared to fresh river water, sea water contains oxygen_________________?

    A. 10% less
    B. 20% less
    C. 10% more
    D. 20% more