Module 6 Quiz

1. The radiation inside of (or from) a microwave oven is

a. Ionizing radiation

b. Non-ionizing radiation

2. Examples of types of ionizing radiation are:

a. alpha, gamma, delta

b. alpha, delta, micro

c. alpha, beta, gamma, neutrons

d. none of the the above.

3. Very high frequencies have very short wavelengths.

True/false

4. If you were measuring the intensity (power) of a 1 MHz source of electromagnetic radiation, you would need:

a. A meter that measured the E (electric) field

b. A meter that measured the H (magnetic) field

c. You need both kinds of meters

d. 1 MHz is harmless and you don't need to measure it

5. Alaska has a PADS for which types/sources of non-ionizing radiation:

a. PADS are only for ionizing radiation

b. Lasers; Radio Frequency/Microwave Radiation; Ultraviolet Radiation

c. Noise; Radio Frequency/Microwave Radiation; Styrene

d. Lasers; Radio Frequency/Microwave Radiation; Gamma radiation.

6. The half-life of radium is 1600 years. If a radium source has an activity of 500 millicuries today, what will be its activity 3200 years from today.

a. Still 500 mCi.

b. 215 mCi

c. 125 mCi

d. Need more information, such as the temperature of the radium.

7. The best way to measure exposure to alpha particles is:

a. Geiger counters (AKA Geiger-Muller counters.)

b. Film badges.

c. Scintillation-type meter

d. All the above will work well, if the operator is diligent.

8. Fire marshals prefer aboveground tanks to underground tanks.

t/f

9. Example/s of secondary containment is/are

a. Double walled tanks

b. Dikes

c. Liners

d. Vaults

e. All of the above

10. Because old underground fuel tanks are rusty and leak, they can be removed with minimal precautions about fire and explosions. t/f