2200Chemical EngineeringMedium
The time taken for a radioactive element to reduce to 50% of its original weight is ________ years, if its half life period is 12 years?
A6
B18
C36
D24
Correct answer
B. 18
Explanation
The correct answer is 18.
Correct answer
B. 18
Explanation
The correct answer is 18.
Maximum theoretical suction lift for water at 15°C by a centrifugal pump is 34 ft. The same for water at 90°C will be ________ ft?
What is the emissivity of a black body?
If the discharge of a centrifugal pump is throttled, then its suction lift________?
A radioactive isotope undergoes decay with respect to time following ________ law?
For equilibrium process (i.e. reversible) in an isolated system ________?
Foot valve provided in the pump is a ________ valve?