Increase in pressure at the outer edge of a drum of radius R due to rotation at corad/sec, full of liquid of density p will be___________________?

Related Mcqs:

1. The size of a boiler drum in pulverised fuel fired boiler,as its size and capacity, (steam pressure and flow ratings) increase __________________?

   A. increases
   B. decreases
   C. remains unchanged
   D. increases/decreases depending on steam temperature requirements
   E. unpredictable

2. A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?

   A. 1 : 5
   B. 1 : 2.5
   C. 1 :25
   D. 1:V5″
   E. 1 : 53/2

3. For a body floating in a liquid the normal pressure exerted by the liquid acts at ____________________?

   A. bottom surface of the body
   B. e.g. of the body
   C. metacentre
   D. all points on the surface of the body
   E. all of the above

4. The rise or depression of liquid in a tube due to surface tensionwim increase in size of tube will________________?

   A. increase
   B. remain unaffected
   C. may increase or decrease depending on the characteristics of liquid
   D. decrease
   E. unpredictable

5. The basic purpose of drum in boiler is to_____________________?

   A. serve as storage of steam
   B. serve as storage of feed water for water wall
   C. remove salts from water
   D. separate steam from water
   E. control level

6. The safety valve at superheater as compared to drum safety valve setting is set at___________________?

   A. higher value
   B. lower value
   C. same value
   D. any value
   E. none of the above

7. The condition of steam in boiler drum is always ___________________?

   A. dry
   B. wet
   C. saturated
   D. supersaturated
   E. superheated

8. The safety valve on boiler drum compared to safety valve on super heater is set at ________________?

   A. same value
   B. higher value
   C. lower value
   D. lower/higher depending on steam flow
   E. unpredicatble

9. For a floating body to be in stable equilibrium, its metacentre should be___________________?

   A. below the center of gravity
   B. below the center of buoyancy
   C. above the center of buoyancy
   D. between e.g. and center of pressure
   E. above the center of gravity

10. When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?

    A. quasi static
    B. steady state
    C. laminar
    D. uniform
    E. static