Chemical Engineering Mcqs

Thorium-232 is converted into uranium-233 in a/an ______________ nuclear reactor?

• (A)  Thermal
• (B)  Fast breeder
• (C)  Heavy water moderated
• (D)  Enriched uranium

Answer

Submitted By :Ali Uppal

Nuclides having the same atomic numbers are termed as___________________?

• (A)  Isotopes
• (B)  Isomers
• (C)  Isotones
• (D)  Isobars

Answer

Submitted By :Ali Uppal

The size of an atom is of the order of one __________________?

• (A)  °Angstrom
• (B)  Fermi
• (C)  Micron
• (D)  mm

Answer

Submitted By :Ali Uppal

The atomic mass of an element is fractional, because ______________________?

• (A)  Of uncertainty principle
• (B)  It may have isobars
• (C)  It contains neutrons
• (D)  It may have isotopes

Answer

Submitted By :Ali Uppal

“Critical mass” is the minimum mass of nuclear fissile material required for the__________________?

• (A)  Sustainment of chain reaction
• (B)  Power generation on commercial scale
• (C)  Economic power generation
• (D)  None of these

Answer

Submitted By :Ali Uppal

The atomic number of an element is equal to the number of ______________ present in its atom?

• (A)  Neutrons
• (B)  Electrons
• (C)  Protons
• (D)  Either

Answer

Submitted By :Ali Uppal

Radioactive decay is a _____________ change?

• (A)  Chemical
• (B)  Nuclear
• (C)  Physical
• (D)  None of these

Answer

Submitted By :Ali Uppal

The mass number of an element is equal to the number of _____________ in the nucleus?

• (A)  Electrons
• (B)  Neutrons
• (C)  Protons
• (D)  Neutrons plus protons (i.
• (E)  , nucleons)

Answer

Submitted By :Ali Uppal

_____________ have the same mass number, but different nuclear charge ?

• (A)  Isotopes
• (B)  Isobars
• (C)  Isotones
• (D)  None of these

Answer

Submitted By :Ali Uppal

Energy produced in the nuclear fission is of the order of _____________ MeV?

• (A)  20
• (B)  200
• (C)  1000
• (D)  2000

Answer

Submitted By :Ali Uppal