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
Related Mcqs:
- A pressurised water reactor (PWR) uses pressurised water as a___________________?
A. Coolant
B. Working fluid in power turbine
C. Moderator
D. None of these - In a pressurised water reactor (PWR), the___________________?
A. Fuel is natural uranium and heavy water acts both as moderator & coolant
B. Coolant water boils in the core of the reactor
C. Coolant water is pressurised to prevent bulk boiling of water in the core
D. Use of moderator is not required - 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 - 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 - 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 - Moderating material used in a thermal-reactor should be a ____________________?
A. Good absorber of neutrons
B. Solid substance
C. Poor absorber of neutrons
D. None of these - Percentage of the heavy water in ordinary water is around ____________________?
A. 0.015
B. 7.54
C. 0.71
D. 32.97 - Which of the following nuclear reactors is the most efficient thermodynamically while operating between the same temperature and pressure limits of the reactor ?
A. Molten sodium cooled
B. CO2 gas cooled
C. Pressurised water
D. Boiling water - Pressure of CO2 gas (which is a coolant) in the Calder-Hall nuclear reactor is ______________ kgf/cm2?
A. 0.2
B. 7
C. 35
D. 50 - The most commonly used nuclear fuel in boiling water reactor is___________________?
A. Enriched uranium
B. Natural uranium
C. Plutonium
D. Monazite sand
