In a shell and tube surface condenser____________?

Related Mcqs:

1. The cooling section in the surface condenser__________?

   A. increases the quantity of vapour extracted along with air
   B. reduces the quantity of vapour extracted along with air
   C. does not affect vapour quantity extracted but reduces pump capacity of air extraction pump
   D. none of the above

2. In a surface condenser if air is removed, there is___________?

   A. fall in absolute pressure maintained in condenser
   B. rise in absolute pressure maintained in condenser
   C. no change in absolute pressure in the condenser
   D. rise in temperature of condensed steam

3. In a regenerative surface condenser_____________?

   A. there is one pump to remove air and condensate
   B. there are two pumps to remove air and condensate
   C. there are three pumps to remove air, vapour and condensate
   D. there is no pump, the condensate gets removed by gravity

4. The maximum percentage gain in Regenerative feed heating cycle thermal efficiency____________?

   A. increases with number of feed heaters increasing
   B. decreases with number of feed heaters increasing
   C. remains same unaffected by number of feed heaters
   D. none of the above

5. For forced draught system, the function of chimney is mainly_____________?

   A. to produce draught to accelerate the combustion of fuel
   B. to discharge gases high up in the atmosphere to avoid hazard
   C. to reduce the temperature of the hot gases discharged
   D. none of the above

6. Incase of reaction steam turbine___________?

   A. there is enthalpy drop both in fixed and moving blades
   B. there is enthalpy drop only in fixed blades
   C. there is enthalpy drop only in moving blades
   D. none of the above

7. In steam turbines the reheat factor_____________?

   A. increases with the increase in number of stages
   B. decreases with the increase in number of stages
   C. remains same irrespective of number of stages
   D. none of the above

8. Method which is commonly applied for unloading the coal for small power plant is___________?

   A. lift trucks
   B. coal accelerators
   C. tower cranes
   D. belt conveyor

9. At low value of power factor, the cost of generation of a power station will be____________?

   A. high
   B. low
   C. remain same
   D. none of the above

10. If the diversity factor of a power station is high then its generation cost is___________?

    A. high
    B. low
    C. remain same
    D. depend on the plan type