Chemical Engineering MCQs

Page No. 356

The decay product of tritium (a beta emitter) is_________________?


aLithium


bHelium


cDeuterium


dHydrogen


View Answer Helium

A radioactive isotope undergoes decay with respect to time following _____________ law?


aLogarithmic


bExponential


cLinear


dInverse square


View Answer Exponential

‘Light water’ used as a coolant in nuclear reactor is nothing but______________________?


aOrdinary water


bMildly acidic (pH = 6) water


cMildly alkaline (pH = 8) water


dNone of these


View Answer Ordinary water

How many atoms are present in one gm-atom of an element ?


a2 × 1023


b6 × 1023


c6 × 1032


d5 × 105


View Answer 6 × 1023

Which of the following is a fuel for a fusion reactor (thermonuclear reactor) ?


aDeuterium and tritium


bU-233


cThorium


dHeavy water


View Answer Deuterium and tritium

Nuclear fuel complex, Hyderabad is engaged in the job of ___________________?


aManufacture of nuclear fuel elements/assemblies


bProcessing of uranium ore


cTreatment of spent fuel


dNone of these



Which of the following is not, a fertile material ?


aTh-232


bU-238


cU-233


dNone of these


View Answer U-233

Which of the following is a non-fissile material ?


aPlutonium-239


bUranium-235


cUranium-233


dThorium-232


View Answer Thorium-232

The new nucleus formed after β-decay of a radioactive element has___________________?


aLess atomic number


bLess atomic weight


cMore atomic number


dMore atomic weight


View Answer Less atomic number

If 4 gm of a radioisotope has a half life period of 10 days, the half life of 2 gm of the same isotope will be ____________ days?


a5


b10


c20


d30


View Answer 10

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