For water, at pressures below atmospheric___________________?

Related Mcqs:

1. 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

2. The resultant of all normal pressures acts___________________?

   A. at e.g. of body
   B. at center of pressure
   C. vertically upwards
   D. at metacentre
   E. vertically downwards

3. For very great pressures, viscosity of moss gases and liquids__________________?

   A. remains same
   B. increases
   C. decreases
   D. shows erratic behavior
   E. none of the above

4. 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

5. 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

6. Equivalent evaporation of water is the evaporation “for a feed water supply at 100°C__________________?

   A. and its corresponding conversion into dry saturated steam at 100°C and 1.033 kg/cm2
   B. and its corresponding conversion into dry steam at desired boiler pressure
   C. conversion into steam at atmospheric condition
   D. conversion into steam at the same pres-sure at which feed water is supplied
   E. none of the above

7. In water wall furnace, the heat is transferred to the water-walls by _________________?

   A. convection
   B. radiation
   C. conduction
   D. radiation and conducton
   E. radiation and convection

8. 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

9. 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_________________?

   A. increase
   B. decrease
   C. remain same
   D. increase/decrease depending on depth of immersion
   E. unpredictable

10. 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