In a pressurised water reactor (PWR), the___________________?

Related Mcqs:

1. A pressurised water reactor (PWR) uses pressurised water as a___________________?

   A. Coolant
   B. Working fluid in power turbine
   C. Moderator
   D. None of these

2. Pressure in a Pressurised Water Reactor (PWR) is used for ____________________?

   A. Maintaining constant pressure in the primary cooling circuit under varying loads
   B. Superheating the steam
   C. Pressurising the water in the primary coolant circuit
   D. None of these

3. The main purpose of control rod in a nuclear reactor is to control the___________________?

   A. Chain reaction and hence the power output by regulating the number of secondary neutrons
   causing fission
   B. Emission of hazardous radiation
   C. Conversion of fissile material into fertile material
   D. Velocity of the secondary neutrons

4. A homogeneous reactor is the one, in which the___________________?

   A. Fissile atoms are evenly distributed throughout the mass of nuclear reactor
   B. Same substance (e.g. heavy water) is used as moderator & coolant
   C. The fuel and the moderator is mixed to form a homogeneous material
   D. All A., B. and C.

5. A thermal nuclear reactor compared to a fast breeder reactor ?

   A. Uses slower neutrons for fission
   B. Uses faster neutrons for fission
   C. Gives higher power density
   D. Requires less fuel to run at the same power level

6. Which of the following is a fuel for a fusion reactor (thermonuclear reactor) ?

   A. Deuterium and tritium
   B. U-233
   C. Thorium
   D. Heavy water

7. Candu reactor is a ______________ nuclear reactor?

   A. Natural uranium fuelled heavy water cooled & moderated
   B. Highly enriched uranium (85% U-235) fuelled
   C. Homogeneous
   D. Fast breeder

8. Net efficiency of ordinary light water cooled nuclear reactor is about _____________ percent?

   A. 32
   B. 52
   C. 72
   D. 88

9. A boiling water reactor is the one, in which the_______________________?

   A. Coolant water is allowed to boil in the core of the reactor
   B. Coolant water, after being heated in the reactor core, generates steam in a boiler
   C. Pressurised water is pumped into the core
   D. Fuel and the coolant are thoroughly mixed to form a homogeneous solution

10. ‘Light water’ used as a coolant in nuclear reactor is nothing but______________________?

    A. Ordinary water
    B. Mildly acidic (pH = 6) water
    C. Mildly alkaline (pH = 8) water
    D. None of these