Which of the following nuclear reactor does not need a heat exchanger for generation of steam____________________?

Related Mcqs:

1. In order to have constant clain reaction to produce a constant rate of heat output, the value of ratio of the number of neutrons in one generation to the number of neutrons in the immediately preceding generation must be________________?

   A. greater than 1.0
   B. less than 1.0
   C. equal to zero
   D. equal to 1.0
   E. equal to infinity

2. The most practical fuel for a thermo-nuclear reactor, both from econocical and nuclear consideration is____________________?

   A. plutonium
   B. uranium
   C. deuterium
   D. thorium
   E. lithium

3. The breeding gain in case of thermal breeder reactor as compared to fast breeder reactor is________________?

   A. same
   B. lower
   C. higher
   D. unity
   E. higher/lower depending on the size of reactor

4. The energy produced by a thermal reactor of same size as a breeder reactor is__________________?

   A. almost same
   B. slightly more
   C. slightly less
   D. much less
   E. much more.

5. The main interest of shielding in nuclear reactor is protection against_______________?

   A. X-rays
   B. infra-red rays
   C. a, P, and y rays
   D. neutrons and gamma rays
   E. electrons

6. The efficiency of a nuclear power plant in comparison to conventional and nuclear consideration is__________________?

   A. higher cost of nuclear fuel
   B. high initial cost
   C. high heat rejection in condenser
   D. lower temperature and pressure condi-tions
   E. nuclear hazard risk

7. In the breeder reactors the generation of new fissionable atom is_________________?

   A. at the lower rate than the consumption
   B. at a higher rate than the constuption
   C. at an equal rate of the consumption
   D. depends on other considerations
   E. unpredictable

8. Gas cooled reactor uses following materials as moderator, and coolant____________________?

   A. graphite, C02
   B. graphite, air
   C. heavy water, C02
   D. lead, H2
   E. concrete, N2

9. Boiling water reactor uses the following as moderator, coolant and working fluid________________?

   A. ordinary fluid
   B. heavy water
   C. molten lead
   D. hydrogen gas
   E. none of the above

10. A boiling water reactor uses following as fuel________________?

    A. enriched uranium
    B. plutonium
    C. thorium
    D. U
    E. natural uranium.