The secondary fuel used in nuclear power plants is

A U<sub>233</sub> and Pu<sub>239</sub>
B U<sub>235</sub> and Th<sub>232</sub>
C U<sub>235</sub> and Pu<sub>238</sub>
D U<sub>233</sub> and Pu<sub>238</sub>

Correct Answer: U<sub>233</sub> and Pu<sub>239</sub>

The three most relevant fissile isotopes are Uranium-233, Uranium-235 and Plutonium-239.
When the unstable nuclei of these atoms are hit by a slow-moving neutron, they split, creating two daughter nuclei and two or three more neutrons.
These neutrons then go on to split more nuclei.
This creates a self-sustaining chain reaction that is controlled in a nuclear reactor, or uncontrolled in a nuclear weapon.
Bissoy MCQ
#Mechanical Engineering #Power Plant Engineering

Related Questions

The primary fuel used in nuclear power plants is
A U235
B U238
C Pu239
D Pu233
A moderator, in nuclear power plants, is a medium introduced into the fuel mass in order to
A Slow down the speed of fast moving neutrons
B Control the reaction
C Reduce the temperature
D Extracts heat from nuclear reaction
CANDU type nuclear reactor using natural uranium as fuel is the extensively used nuclear reactor because of the fact that the
A Specific fuel consumption is very low due to the use of heavy water
B Fuel cost is much lower than that used in pressurised water or boiling water reactor
C Heavy water is used both as coolant as well as moderator
D Both B and C
According to the history of the Ruppur Nuclear Power Station Bangladesh first conceived of building a nuclear power plant in-
A 1961
B 1981
C 1996
D 2011
If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.
A Critical
B Breeder
C Fertile
D Heterogenous
Gasification of the solid fuel converts its organic part into combustible by interaction with air/oxygen and steam so as to obtain a secondary gaseous fuel of high calorific value having no ash. Gasification reactions are normally carried out at about __________ °C.
A 400-500
B 900-1000
C 1400-1500
D 1700-1800
Travelling at a constant speed of 32 miles per hours, a certain motorboat consumers 24gallons of fuel per hour. What is the fuel consumption of his boat this speed measured in miles per gallons of fuel?
A 2/3
B 3/4
C 4/5
D 4/3
A certain truck uses 18 gallons of diesel fuel in traveling 270 miles. In order for the truck to travel the same distance using 10 gallons of diesel fuel, by how many miles per gallon must the truck's fuel mileage be increased.
A 12
B 15
C 27
D 9
Two tanks are filled to capacity with automobile fuel. The first tank holds 600 gallons more than the second tank. If 100 gallons were to be pumped from each tank, the first tank would then contain 3 times as much fuel as the second tank. What is the total number of gallons of fuel in the two full tanks?
A 1,400
B 1,200
C 1,000
D 900
The secondary voltage for a certain power transformer is twice the voltage applied to the primary. The current flowing in the secondary winding will be:
A One-half the primary current
B Same as the primary current
C Twice the primary current
D No more than 10% less than the primary current
E None of the above

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