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Consider the following statements.
In a nuclear reactor, self-sustained chain reaction is possible because
1. More neutrons are released in each of the fission reactions.
2. The neutrons immediately take park in the fission process.
3. The fast neutrons are slowed down by graphite.
4. Every neutron released in the fission reaction initiates further fission.
Which of these statements are correct?
The question is given below consist of a question followed by three statements labeled as I, II and III. You have to decide whether these statements give enough information required to answer the question or not. Ten people P, Q, R, S, T, U, V, W, X and Y were born on ten different dates 5, 7, 9, 12, 13, 15, 18, 21, 23 and 27 of the same month but not necessarily in the same order. I. Q and T were born on an even numbered date. W was born on 7 and U was born after W. Only five people were born between R and T. Y was born on 23. P is the eldest person. II. V was born on 13 and T on 12. Neither S nor Q was born on 27. Only six people were born between P and X. and P is the eldest person. There are as many people between T and Q as between Q and R. III. P is the eldest and R is the youngest person. Only six people were born between W and Y. If the dates on which T and S were born are added, the resultant will give the date on which X was born. When was X born?
What does the control rod (cadmium rod) do in a nuclear reactor? A. The fission absorbs excessive heat generated during the reaction and thus prevents excess temperature rise. B. Absorbs extra neutrons to control the chain reaction. C. Reduces the energy of neutrons so that they can be further used for the fission reaction. D. The chain produces the neutrons required for the fission reaction.
A, B, C, D, E, and F are sitting around a circular facing towards the center. They have their birthdays on 2nd, 3rd, 4th, 5th, 6th and 8th. The person born on the 3rd date sits opposite to the person born on 5th. The person born on 3rd does not sit adjacent to E. E sits third to the right of F and was born on 2nd. C sits to the right of E. F was born on the square number date. A sits opposite to C, who was born on the date of the cube number. D sits to the immediate left of E. Who sits exactly between E and B?
Six persons - Seema, Vaibhav, Ajay, Manisha, Tulika and Ananya - were born in six different states, namely Assam, Gujarat, Madhya Pradesh, Punjab, Bihar and Rajasthan, but not necessarily in the same order. They all play six different games, namely Chess, Football, Hockey, Ludo, Badminton and Cricket, but not necessarily in the same order. Ananya was born in Gujarat and she plays Cricket. Ajay does not play Chess or Ludo. The person who was born in Bihar plays Football. Seema plays Hockey and she was not born in Assam or Madhya Pradesh. Manisha was born in Rajasthan and she plays badminton. Identify the state in which Ajay was born?
The process of losing speed of newly born neutrons on collision with other freshly produced neutrons & other obstacles in the way is called?
In a nuclear reactor, . . . . . . . . is used to control the rate of fission reaction which itself absorbs neutrons without fission.
Each fission of U₂₃₅ produces following number of fast neutrons per fission
Each fission of U235 produces following number of fast neutrons per fission
Sunil decided to host a party for all those who are born in the even month of a year. Who all of the following will be invited to the party? Ajay was born on 12th September 2005. Riya was born on 1st January 2001. Ram was born on 3rd October 2002. John was born on 15th April 2001.