Specific weight of sea water is more that of pure water because it contains_________________?

Related Mcqs:

1. 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

2. 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

3. The specific weight of water is 1000 kg/m”_________________?

   A. at normal pressure of 760 mm
   B. at 4°C temperature
   C. at mean sea level
   D. all the above
   E. none of the above

4. German silver contains_________________?

   A. 1% silver
   B. 2.5% silver
   C. 5% silver
   D. 10% silver
   E. 100% silver

5. Monel metal contains_________________?

   A. 63 to 67% nickel and 30% copper
   B. 88% copper and 10% tin and rest zinc
   C. alloy of tin, lead and cadmium
   D. malleable iron and zinc
   E. none of the above

6. If w is the specific weight of liquid and k the depth of any point from the surface, then pressure intensity at that point will be________________?

   A. h
   B. wh
   C. w/h
   D. h/w
   E. h/wh

7. A metal with specific gravity of o floating in a fluid of same specific gravity a will____________________?

   A. sink to bottom
   B. float over fluid
   C. partly immersed
   D. be fully immersed with top surface at fluid surface
   E. none of the above

8. 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

9. 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

10. Pure iron is the structure of_______________?

    A. ferrite
    B. pearlite
    C. anstenite
    D. ferrite and cementite
    E. ferrite and pearlite