FEMA IS-3: Radiological Emergency Management Answers

1

Everyone is exposed to radiation on a continuing basis from either or sources.

  • Natural, man­made
2

Radon dose comes primarily from its daughter products which are ?

  • Inhaled
3

The label required for radioactive material packages with a maximum dose rate of 200 mR/hr at the surface of the package is:

  • Radioactive Yellow ­II
4

Nuclear medicine techniques work through the detection of this kind of radiation, injected into the body by adding a radioisotope to a certain drug:

  • Gamma ­rays
5

To determine the amount of radioactive material in a package of radioactive materials, you would look at the:

  • Label
6

Chronic exposures are:

  • Amounts of radiation received over a very long period of time
7

In a, a major failure has occurred, but an immediate response by the public is not needed.

  • Site Area Emergency
8

The three main barriers in a nuclear power plant to prevent release of fission products are the fuel rods, the reactor vessel, and the ________________________.

  • Containment building
9

Cancerous tumor cells can be treated by high energy or _____________________________.

  • Gamma rays, X­rays
10

The three factors which are important in protecting individuals from radiation are:

  • Time, shielding, and distance
11

The distinctive symbol used to identify radioactive materials is the:

  • Tri­blade
12

A member of the public should give lifesaving first aid to injured victims of a radiological transportation accident:

  • Without delay out of concern for radiological hazards
13

The two radionuclides which concentrate in seafood are:

  • Lead and polonium
14

Nuclear power plant emergency plans are required to incorporate actions for which of the following types of radiological hazards?

  • Direct exposure to radiation from a plume of radioactive material
15

The majority of radioactive material shipments are made in this type of packaging.

  • Type B
16

Unbroken radioactive material packages never have a surface radiation dose above this level:

  • 1,000 mR/hr
17

To prevent fuel damage, decay heat must be removed from the reactor core:

  • After the reactor shuts down
18

The 7:10 Rule of Thumb:

  • Helps estimate future exposure levels
19

An example of a man­made source of radiation is:

  • Diagnostic radiation
20

Just as in an emergency resulting from a nuclear power accident, the three most important ways of reducing the radiation exposure from fallout from a nuclear weapon are:

  • Dose rate, distance, and shielding
21

The key elements of emergency management are , Response, Recovery and,
Mitigation.

  • Preparedness
22

A unit used to express the exposure an individual receives is the:

  • Roentgen
23

In every nuclear power plant that generates electricity, the following components are present:

  • Heat source, turbine electricity generator, and pump
24

Just under half of man’s exposure to external natural radiation comes from?

  • Cosmic radiation
25

By far, the radionuclide used in most nuclear medicine procedures is:

  • Technicium­99m
26

A large modern nuclear power plant has approximately fuel assemblies in its core.

  • 200
27

A nuclear explosion which releases energy equivalent to 7,000,000 tons of TNT:

  • Is called a 7 megaton burst
28

Radiation that individuals are exposed to on a continuing basis which is considered non life­threatening is also known as this kind of radiation?

  • Cosmic
29

Control rods are used in a reactor core to:

  • Absorb free neutrons
30

The label required for radioactive material packages in excess of 50 mr/hr but less than 200 mr/hr is:

  • Radioactive Yellow­ II
31

According to the “7:10 Rule of Thumb,” if the exposure rate one hour after detonation of a nuclear weapon is 500 R/hr, the exposure rate approximately 14 days later (343 hours) will be approximately:

  • 0.5 R/hr
32

Radiological survey instruments:

  • Are the most accurate and reliable means of determining exposure levels
33

Nuclear explosions can be of times more powerful than the largest conventional weapon.

  • Millions
34

Type B packages must be able to meet Type A requirements and also withstand the effects of ______________________ conditions?

  • Accident
35

Cosmic radiation and radiation from terrestrial sources are examples of:

  • Natural background radiation
36

Which of the following is an example of proper units for expressing exposure rate?

  • R/hr
37

Because of its low penetrating ability, the type of radiation which is usually only a hazard when inhaled or ingested is:

  • Alpha radiation
38

The total energy released in a nuclear explosion, is the explosions:

  • Energy yield
39

Radioactive fallout makes the surface it comes into contact with radioactive. (True or False?)

  • False
40

Most debris from a nuclear weapons test:

  • Was pushed into the stratosphere
41

Radioactive decay is defined as:

  • The decrease in the amount of any radioactive material due to the spontaneous emission of nuclear radiation from the nucleus
42

In the United States, serious radiation exposures:

  • Have not resulted from radiological transportation accidents due largely to the nature of the material transported and the use of appropriate protective packaging
43

The rem is a unit used to measure:

  • Radiation dose in terms of the amount of the biological effect caused by the amount of energy absorbed
44

The immediate destructive action of a nuclear explosion is caused by this.

  • Shock
45

A detonation of a nuclear explosive above 100,000 feet of altitude is called ______________.

  • A high­altitude burst
46

A chain reaction results when a uranium atom is struck by a/an ______________released by a nearby Uranium atom undergoing fission.

  • Neutron
47

If evacuation is required following a nuclear power plant accident, it is recommended that individuals living anywhere closer than miles be evacuated.

  • 2 to 3
48

Many smoke detectors contain:

  • Americium­241
49

Radiation received by the body over a short period is:

  • Acute exposure
50

In a pressurized water­ reactor the primary cooling water:

  • Transfers its heat to the secondary cooling water in a steam generator

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