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?
A. 24
B. 18
C. 6
D. 36
A. 24
B. 18
C. 6
D. 36
A. Corner
B. Resonant
C. Cross-over
D. Natural
A. Liquid temperatures only
B. Very high temperatures only
C. Very low temperatures only
D. Both high and low temperatures
A. 1/2 S3
B. 2/S3
C. 1/S3
D. 2/S2
A. 180° – phase lag
B. Phase lag – 180°
C. Phase lag + 180°
D. Phase lag + 90°
A. CO2
B. O2
C. NO
D. NO2
A. Isothermal CSTR
B. Mixer
C. Non-isothermal CSTR
D. None of these
A. Strips
B. Bars
C. Wires
D. Beads
A. Same as time constant
B. Same as transportation lag
C. Maximum change in the variable that does not change the reading of the instrument
D. None of these
A. 5π/12
B. π/6
C. π/12
D. π/3