Nuclear Engineering Question:

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

Nuclear Engineering Interview Question
Nuclear Engineering Interview Question

Answer:

Option B


Previous QuestionNext Question
Which of the following may not need a moderator?

A. Candu reactor
B. Fast breeder reactor
C. Homogeneous reactor
D. Pressurised water reactor		Commercial power generation from fusion reactor is not yet possible, because

A. it is difficult to control fusion reaction.
B. the fuel required (e.g. deuterium and tritium) is scarce.
C. it is difficult to initiate fusion reaction.
D. quantity of fuel required for initiating fusion reaction is prohibitively high.