MDSP ELEMENTS SET 10

Weldable type plastic(s) include(s):

• (a) thermosets alone
• (b) thermoplastics alone
• (c) both thermosets and thermoplastics
• (d) neither thermosets nor thermoplastics.

The average number of fast neutrons produced in the fission of an U-235 atom is nearly equal to

• (a) 1.23
• (b) 2.46
• (c) 3.69
• (d) 4.92

Energy released by the fission of one U-235 atom is nearly equal to

• (a) 2000 MeV
• (b) 1000 MeV
• (c) 200 MeV
• (d) 20 MeV

Fast breeder reactor uses the following moderator:

• (a) graphite
• (b) heavy water
• (c) no moderator
• (d) ordinary water.

Which of the following moderators is used in Candu reactor?

• (a) Heavy water
• (b) Graphite
• (c) Ordinary water
• (d) Polyphenyl.

In which of the following reactors, heavy water is used as coolant and moderator both?

• (a) Boiling water reactor
• (b) Fast breeder reactor
• (c) Candu reactor
• (d) Gas cooled reactor

In which of the following reactors, ordinary water is used as coolant and moderator both?

• (a) Boiling water reactor
• (b) Fast breeder reactor
• (c) Candu reactor
• (d) Gas cooled reactor

Which of the following reactors uses graphite as moderator?

• (a) Boiling water reactor
• (b) Fast breeder reactor
• (c) Candu reactor
• (d) Gas cooled reactor.

Which of the following reactors uses helium as coolant?

• (a) Pressurised water reactor
• (b) Magnox reactor
• (c) Fast breeder reactor
• (d) Candu reactor

Which of the following reactors uses natural uranium as fuel?

• (a) Pressurised water reactor
• (b) Candu reactor
• (c) Boiling water reactor
• (d) Fast breeder reactor