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_________________?

Related Mcqs:

1. 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 metres of water column
   B. 3 metres of water column
   C. 3.5 metres of water column
   D. 4 m of water column
   E. none of the above

2. Total pressure on a lmxlm gate immersed vertically at a depth of 2 m below the free water surface will be_______________?

   A. 1000 kg
   B. 4000 kg
   C. 2000 kg
   D. 8000 kg
   E. 16000 kg

3. The total pressure on the surface of a vertical sluice gate 2 m x 1 m with its top 2 m surface being 0.5 m below the water level will be ________________?

   A. 500 kg
   B. 1000 kg
   C. 1500 kg
   D. 2000 kg
   E. 4000 kg

4. The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is__________________?

   A. less
   B. more
   C. equal
   D. may be less or more depending on temperature
   E. unpredictable

5. 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

6. The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is____________________?

   A. 2.4 m
   B. 3.0 m
   C. 4.0 m
   D. ”2.5 m
   E. 5.0 m

7. A square surface 3 m x 3 m lies in a vertical line in water pipe its upper edge at water surface. The hydrostatic force on square surface is____________________?

   A. 9,000 kg
   B. 13,500 kg
   C. 18,000 kg
   D. 27,000 kg
   E. 30,000 kg

8. The pour point of diesel oil must be_________________?

   A. lower than the coldest atmospheric temperature at which oil is to be pumped
   B. higher than above
   C. has no such relation
   D. more than 100°C
   E. none of the above

9. At the center line of a pipe flowing under pressure where the velocity gradient is zero, the shear stress will be_________________?

   A. minimum
   B. maximum
   C. zero
   D. negative value
   E. could be any value

10. 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