Nuclear Engineering Question:

Which of the following may not need a moderator?

A. Candu reactor
B. Fast breeder reactor
C. Homogeneous reactor
D. Pressurised water reactor

Nuclear Engineering Interview Question
Nuclear Engineering Interview Question

Answer:

Option B


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The time taken for a radioactive element to reduce to 50% of its original weight is __________ years, if its half life period is 12 years.

A. 24
B. 18
C. 6
D. 36		The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent.

A. 3.125
B. 6.25
C. 12.50
D. 25