512. Gas cooled reactor uses following materials as moderator, and coolant
A.Graphite, CO2
B.Graphite, air
C.Heavy water, CO2
D.Lead, H2

---

513. A nuclear fission produces energy of following order in MeV
A.20
B.200
C.2000
D.20000

---

514. The process by which a heavy nucleus is splitted into two light nuclei is known as
A.Splitting
B.Fission
C.Fusion
D.Disintegration

---

515. A nuclear fission is initiated when the critical energy as compared to neutron binding energy of the atoms is
A.Same
B.More
C.Less
D.There is no such criterion

---

516. The fast breeder reactor uses the following moderator
A.Demineralised water
B.No moderator is used.
C.Heavy water
D.Graphite

---

517. The first unclear power plant in India is located at
A.Kota
B.Kalapakkam
C.Tarapur
D.Baraeilly

---

518. The nuclear power plant at Tarapur has the following reactor
A.Fast breeder
B.Pressurised water
C.Boiling water
D.Sodium graphite

---