Chemical Engineering - Nuclear Power Engineering

36. 

A radioactive substance does not emit

A. α-ray
B. proton
C. position
D. β-ray

Answer: Option B

Explanation:

No answer description available for this question. Let us discuss.

37. 

The specific heats of three gaseous coolants namely H2, He and CO2 in the increasing order are

A. CO2, He, H2
B. CO2, H2, He
C. H2, He, CO2
D. H2, CO2, He

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

38. 

Indian monazite sand contains __________ percent thorium.

A. 10
B. 25
C. 60
D. 90

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.

39. 

Pick out the wrong statement.

A. α-particle emission from a radioactive element makes it electrically negative.
B. β-particle emission from a radioactive element makes it electrically positive.
C. A radioactive element having a half life period of 20 years will completely disintegrated in 40 years.
D. The disintegration constant of a radioactive isotope is independent of pressure, temperature or concentration.

Answer: Option C

Explanation:

No answer description available for this question. Let us discuss.

40. 

Percentage of the heavy water in ordi water is around

A. 0.015
B. 7.54
C. 0.71
D. 32.97

Answer: Option A

Explanation:

No answer description available for this question. Let us discuss.