Maximum permissible dose of radiation:

# The maximum permissible dose of radiation to the operator of an X ray machine is:
A. 0.05 rem per year
B. 0.5 rem per year
C. 5.0 rem per year
D. 50 rem per year

The correct answer is C. 5.0 rem per year.

Occupational dose limit	Maximum permissible dose per year
1. Gonad/ Bone marrow	5 rem
2. Skin	15 rem

Non occupational dose limit	Maximum permissible doses per year
1. Embryo/ Fetus gestation period	0.5 rem
2. General public	0.5 rem
3. Skin	15 rem
NOTE: 1 Sievert = 100 rem