Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is around __________ m/sec. (A) 1 (B) 2200 (C) 3 × 10 11 (D) 9 × 10 21

Velocity of the thermal neutron (< 0.025 eV) used for fission of U-235 is
around __________ m/sec.
(A) 1
(B) 2200
(C) 3 × 10
11
(D) 9 × 10
21
by

1 Answer

Answer :

(B) 2200
by

Related questions

Thermal neutrons which are used to cause the fission of U-235 haveenergy __________ eV.(A) < 0.025(B) > 1(C) 1-25(D) > 200

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Last Answer : (A) < 0.025

The velocity of thermal (slow) neutrons triggering nuclear fissionreaction (having energy equal to 0.025 eV) is about __________metres/second.(A) 1100(B) 2200(C) 3300(D) 4400

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Last Answer : (B) 2200

Number of secondary neutron emitted on fission of an atom of U-235 by slow neutron bombardment is (A) 3 (B) 235 (C) 200 (D) 92

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Last Answer : (A) 3

Flue gas discharge velocity through chimney of a big thermal power plant may be around __________ m/sec. (A) 0.5 (B) 10 (C) 50 (D) 500

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Heat is generated in a nuclear reactor (thermal) by (A) Combustion of a nuclear fuel e.g. uranium (B) Fusion of atoms of uranium (C) Absorption of neutrons in uranium atoms (D) Fission of U-235 by neutrons

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A reaction develop nuclear energy at the rate of `3 xx 10^(4) kW`. How many atoms of `.^(215)U` undergo fission per second? How much `.^(235)U` is bur

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`""_(92)U^(235)` nucleus absorbs a neutron and disintegrates into `""_(54)Xe^(139) .""_(38)Sr^(94)` and X. What will be the product X ?

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In the neutron`-`induced fissioin reaction of `._(92)U^(235)` one of the products if `._(37)Rb^(95),` in this mode, another nuclide and three neutrons

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Thorium-232 (a fertile material) on absorption of a neutron gets converted into __________ , which is a fissile material. (A) Thorium-233 (B) Uranium-235 (C) Uranium-233 (D) Plutonium-239

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Calculate the energy released by fission of 1 g of `._(92)^(235)U`, assuming that an energy of 200 MeV is released by fission of each atom of `.^(235)

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Nuclear fission of one atom of uranium-235 produces the energy equivalent to about __________ MeV. (A) 20 (B) 200 (C) 500 (D) 2000

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A cannon of weight 10 tonnes fires a shell of 50 kg with a muzzle velocity of 900 m/sec at an angle of 30?. The time taken for the shell to emerge from the barrel is 0.004 sec. The velocity of the cannon would be a.3.9 m/sec b.7.8 m/sec c.8.95 m/sec d.1.95 m/sec e.5.85 m/sec

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Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent. (A) 0.71 (B) 6.31 (C) 99.29 (D) 12.73

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A project with total budget cost of 30 crores is scheduled to be completed in 80 weeks. A periodic review was carried out at end of 60 weeks and results are as given: Budgeted cost of work performed (EV) = 17 crores Actual Cost of work performed (AC = 19 crores Budgeted cost of work scheduled (PV) = 21 croresWhat is the cost performance index? A.0.895 B.0.81 C.0.90 D.1.12

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In a breeder reactor, new fuel is formed as non-fuel uranium-238 absorbs a neutron and ultimately becomes which of the following fissionable atoms: w) uranium-235 x) plutonium-239 y) uranium-239 z) neptunium-239

Description : In a breeder reactor, new fuel is formed as non-fuel uranium-238 absorbs a neutron and ultimately becomes which of the following fissionable atoms: w) uranium-235 x) plutonium-239 y) uranium-239 z) neptunium-239

Last Answer : ANSWER: X -- PLUTONIUM-239

A man lifts a stone weighting 300 g from the ground to a height of 2m and throws it horizontally with a velocity of 6 m/sec. The work done by the man is a.7.686 J b.11.286 J c.5.886 J d.8.343 J e.Tapered bearing

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Last Answer : b. 11.286 J

A threshing cylinder of 15cm radius is rotating at 700rpm if peripheral velocity (m/sec) will be a. 11 b.105 c. 210 d. 660

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A jet of water of cross-sectional area 20 sq. cm impinges on a plate at an angle of 60? with a velocity of 10 m/sec. Neglecting the friction between the jet and plate (density of water 1000/9.81 kgm-1 sec2 per cubic meter), the force exerted by the jet on the plate would be in the range a.15 - 20 kg b.20 - 25 kg c.5 - 10 kg d.25 - 30 kg e.10 - 15 kg

Description : A jet of water of cross-sectional area 20 sq. cm impinges on a plate at an angle of 60? with a velocity of 10 m/sec. Neglecting the friction between the jet and plate (density of water 1000/9.81 kgm-1 sec2 per cubic meter), the ... a.15 - 20 kg b.20 - 25 kg c.5 - 10 kg d.25 - 30 kg e.10 - 15 kg

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Last Answer : Answer: Option A

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Last Answer : (A) Producing high neutron flux 10 12 -10 13 neutrons/cm2 , sec and studying the effect of neutron bombardment on different materials

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Description : The number of neutrons accompanying the formationof 54Xe 139 and 38Sr 94 from the absorption of a slow neutron by 92U235 , followed by nuclear fission is (A) 1 (B) 2 (C) 3 (D) 4

Last Answer : (C) 3

Which type of Uranium is used in the fission process? A. Uranium – 234 B. Uranium - 235 C. Uranium - 236 D. Uranium - 237

Description : Which type of Uranium is used in the fission process? A. Uranium – 234 B. Uranium - 235 C. Uranium - 236 D. Uranium - 237

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Which type of Uranium is used in the fission process? A. Uranium – 234 B. Uranium - 235 C. Uranium - 236 D. Uranium - 237

Description : Which type of Uranium is used in the fission process? A. Uranium – 234 B. Uranium - 235 C. Uranium - 236 D. Uranium - 237

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Which type of Uranium is used in the fission process? A. Uranium – 234 B. Uranium - 235 C. Uranium - 236 D. Uranium - 237

Description : Which type of Uranium is used in the fission process? A. Uranium – 234 B. Uranium - 235 C. Uranium - 236 D. Uranium - 237

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The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec. (A) 1.8 (B) 12.4 (C) 186.2 (D) 736.4

Description : The peripheral velocity at inlet of a centrifugal pump having inlet diameter of 25 cms and rotating at 950 rpm is __________ m/sec. (A) 1.8 (B) 12.4 (C) 186.2 (D) 736.4

Last Answer : (B) 12.4

One international unit (I.U) of vitamin D is defined as the biological activity of (A) 0.025 µg of cholecalciferol (B) 0.025 µg of 7-dehydrocholecalciferol (C) 0.025 µg of ergosterol (D) 0.025 µg of ergocalciferol VITAMINS 113

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Last Answer : Answer : A

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Description : Out of the following, nucleus of __________ atom contains the largest number of neutrons. (A) U-235 (B) U-238 (C) U-239 (D) Pu-239

Last Answer : (C) U-239

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Description : U-235 content in enriched uranium, that is normally used in power reactors (e.g., at Tarapur atomic power plant), is about __________ percent. (A) 85 (B) 50 (C) 3 (D) 97

Last Answer : (C) 3

Candu reactor is a __________ nuclear reactor. (A) Natural uranium fuelled heavy water cooled & moderated (B) Highly enriched uranium (85% U-235) fuelled (C) Homogeneous (D) Fast breeder

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Description : Fast breeder nuclear reactors using enriched uranium as fuel may contain upto a maximum of __________ percent of U-235 (i.e. fissile material). (A) 15 (B) 45 (C) 65 (D) 85

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Two mail trains Pand Q of 300 m and 600m, run at speed of 130 km/hr and 160 km/hr respectively, in the direction opposite direction to each other. Find the time required to cross each other after the moment they met? A) 11.17 sec B) 12sec C) 9.10sec D) 21sec

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A bullet is fired vertically upwards with a velocity of 2200 ft/s. Bullet ascends to a height of a.56,900 ft b.107 dynes c.75,000 ft d.48.300 ft e.65,800 ft

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In a nuclear fission reaction a freely moving neutron?

Description : In a nuclear fission reaction a freely moving neutron?

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What is the role of neutron in nuclear fission?

Description : What is the role of neutron in nuclear fission?

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The particle required to continue the chain process of Uranium fission is – (1) Electron (2) Proton (3) Neutron (4) Positron

Description : The particle required to continue the chain process of Uranium fission is – (1) Electron (2) Proton (3) Neutron (4) Positron

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Nuclear fission is caused by the impact of. (1) Proton (2) Electron (3) Neutron (4) (1) and (b)

Description : Nuclear fission is caused by the impact of. (1) Proton (2) Electron (3) Neutron (4) (1) and (b)

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