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Consider the following statements: 1. The chain reaction process is used in nuclear bombs to release a vast amount of energy, but in nuclear reactors, there is no chain reaction. 2. In a nuclear reactor, the reaction is controlled, while in nuclear bombs, the reaction is uncontrolled. 3. In a nuclear reactor, all operating reactors are ‘critical’, while there is no question of ‘criticality’ in case of a nuclear bomb. 4. Nuclear reactors do not use moderators, while nuclear bombs use them. Which of the above statements about operational principles of a nuclear reactor and a nuclear bomb is / are correct?
Consider the following statements.
1. The chain reaction process is used in nuclear bombs to release a vast amount of energy, but in nuclear reactors, there is no chain reaction.
2. In a nuclear reactor, the reaction is controlled, while in nuclear bombs, the reaction is uncontrolled.
3. In a nuclear reactor, all operating reactors are 'critical', while there is no question of 'critically' in case of a nuclear bomb.
4. Nuclear reactors do not use moderators, while nuclear bombs use them.
Which of the above statements about operational principles of a nuclear reactor and a nuclear bomb is/are correct?
Six persons A, B, C, D, E and F are going to any one place among six different places Delhi, Mumbai, Punjab, Odisha, Goa and UP (not necessarily in the same order). No two persons are going to the same place. B is not going to Delhi. E is going to Odisha. F is not going to Delhi and Goa. D is going to Mumbai. A and C are not going to UP. A is not going to Delhi. Who is going to Delhi?
Bangladesh is going to sign an agreement for setting up nuclear plant with---
Correct answer for the given blank out of the four alternatives.
The main failings were of conception and a political willingness to settle _________ easy options. _______________ the expansive declarationsof the need "to maintain effective security of all nuclear materials, _______________ includes nuclear materials used in nuclear weapons”, thesummits narrowed their _______________ to civilian holdings __________________ non­nuclear weapon states.
_______________ includes nuclear materials used in nuclear weapons”
Five persons namely A, B, C, D and E are going to the office on different days of the week, starting from Monday to Friday. Two persons are going between C and B. C is going before Wednesday. D is going to the office immediately after E. A is not going on Friday. Then who among the following persons are going to the office on Wednesday?
Five persons namely Rekha, Vinod, Rakesh, Jonne and Roy are going to the office on different days of the week, starting from Monday to Friday. Two persons are going between Rakesh and Vinod. Rakesh is going before Wednesday. Jonne is going to the office immediately after Roy. Rekha is not going on Friday. Then who among the following persons are going to the office on Wednesday?
Consider the following statements regarding 'setting of cement': 1. Low-heat cement sets faster than OPC. 2. Final setting time decides the strength of cement. 3. Initial setting time of Portland PozzoIlona is 30 minutes. 4. Air-induced setting is observed when stored under damp conditions. 5. Addition of gypsum retards the setting time. Which of the above statements are correct?
Which of the following statement/(s) is/are true with regard to "Nuclear Fuel Cycle"? A. It is a series of industrial processes which involve the production of electricity from uranium in nuclear power reactors. B. The nuclear fuel cycles start with the mining of uranium and end with the disposal of nuclear waste. C. To prepare uranium for use in a nuclear reactor, it undergoes the steps of mining, milling, conversion, enrichment, and fuel fabrication. Choose the correct answer from the options given below:
Correct answer for the given blank out of the four alternatives.
The main failings were of conception and a political willingness to settle _________ easy options. _______________ the expansive declarationsof the need "to maintain effective security of all nuclear materials, _______________ includes nuclear materials used in nuclear weapons”, thesummits narrowed their _______________ to civilian holdings __________________ non­nuclear weapon states.
civilian holdings __________________ non ­nuclear weapon states.