nuclei
electrons
protons
neutrons
✅ The correct answer is option A.
Chemical Engineering MCQs
The amount of a radioisotope remaining undecayed after a time equal to four times its half life, will be __________ percent.
3.125
6.25
12.5
25
✅ The correct answer is option B.
Which of the following is artificially produced as it does not occur in nature ?
Uranium-235
Uranium-233
Plutonium-239
Both (b) and (c)
✅ The correct answer is option D.
Diameter of bubble caps used in high pressure columns is __________ as compared to that used in identical vacuum columns.
less
more
same
either (a) or (b); no generalisation can be made
✅ The correct answer is option B.
The minimum shell thickness for tank ≤ 15 metres diameter is limited to __________ mm, for reasons of elastic stability.
2
5
10
15
✅ The correct answer is option B.
First experimental observation of nuclear fission was done by
Plane
Rutherford
Fermi
Hahn and Strassman
✅ The correct answer is option C.
The type of pump used for the recirculation of molten sodium coolant in liquid metal cooled reactor is a/an __________ pump.
electromagnetic
reciprocating
centrifugal
volute
✅ The correct answer is option A.
In actual operation of distillation column, the vapour is not distributed uniformly among the bubble caps, primarily because of the
liquid gradient on the tray.
lower skirt clearance.
lower static submergence.
small downcomer liquid seal.
✅ The correct answer is option A.
The 92U238 emits an a-particle. The product is
90U234
90U238
90U236
92U236
✅ The correct answer is option A.
Speed of the drum of the rotary vacuum filter normally ranges from __________ rpm.
0.1 to 2
5 to 7
3 to 8
8 to 15
✅ The correct answer is option A.