Nuclear Gauge Safety Certification Course
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Questions and Answers

What are acute radiation exposures best described as?

Large doses over a short period of time

What is radioactive decay?

Radiation

What is the hazard class for the gauge?

7

When transporting a gauge you can safely secure, block and brace it in the front seat.

<p>False</p> Signup and view all the answers

If a gauge is missing from the back of the pick-up truck, what should you do?

<p>Immediately contact the RSO and regulatory agency</p> Signup and view all the answers

Elements that have the same number of protons and neutrons are considered what?

<p>Stable</p> Signup and view all the answers

How many Yellow II Radioactive Labels must be affixed to the gauge case?

<p>Two</p> Signup and view all the answers

The time it takes for a radioactive material to decay to ½ its activity is known as a half-death.

<p>False</p> Signup and view all the answers

Americium 241 is used to measure what?

<p>Moisture content</p> Signup and view all the answers

Which is the least penetrating type of radiation?

<p>Alpha</p> Signup and view all the answers

When shipping by air, nuclear gauges can only be shipped on cargo aircraft.

<p>True</p> Signup and view all the answers

What is the purpose of a TLD or film badge?

<p>To measure radiation exposure</p> Signup and view all the answers

Because of ionization, nuclear radiation exposure can be harmful to human tissue.

<p>True</p> Signup and view all the answers

A gauge case with a hole worn in the base can be patched and used.

<p>False</p> Signup and view all the answers

Isotope refers to what?

<p>A variation of a given element</p> Signup and view all the answers

Which acts as an effective shield for alpha radiation?

<p>All of the above</p> Signup and view all the answers

Gauge inventories are to be taken how often?

<p>Every 6 months</p> Signup and view all the answers

Which two documents must you have readily visible and accessible when you transport a gauge?

<p>Emergency response sheet and bill of lading</p> Signup and view all the answers

Radioactive decay typically comes from what part of the element?

<p>Nucleus</p> Signup and view all the answers

What are the two types of radioactive material used in the gauge?

<p>Cesium and Americium</p> Signup and view all the answers

You can transport the gauge inside of any case provided it is blocked and braced.

<p>False</p> Signup and view all the answers

Which of the following do not require HAZMAT training?

<p>Accountant</p> Signup and view all the answers

Cosmic radiation is considered to be an occupational exposure.

<p>False</p> Signup and view all the answers

Radiation safety training for gauge operators is required.

<p>True</p> Signup and view all the answers

Radioactive Yellow II moisture density gauges must use placards.

<p>False</p> Signup and view all the answers

Nuclear gauges can only be shipped on cargo aircraft.

<p>True</p> Signup and view all the answers

What is the exposure limit for a declared pregnant worker during pregnancy?

<p>500 millirem</p> Signup and view all the answers

A general license is needed to own a moisture density gauge.

<p>False</p> Signup and view all the answers

What should you first do after completing a one minute density test?

<p>Pull the handle to retract the rod back into the safe position.</p> Signup and view all the answers

New employees who do not have HAZMAT training must work under the direct supervision of a trained employee and only for the first 90 days.

<p>True</p> Signup and view all the answers

What are the two types of radiation that never escape the shielding in the gauge?

<p>Alpha and Beta</p> Signup and view all the answers

Which is an effective shield for neutron radiation?

<p>Plastic</p> Signup and view all the answers

You can use moisture density gauges in your son's science fair project.

<p>False</p> Signup and view all the answers

The curie/becquerel measurement is a measurement of the strength/activity of a radioactive material.

<p>True</p> Signup and view all the answers

Operating and Emergency Response Procedures are part of the overall Radiation Safety Plan.

<p>True</p> Signup and view all the answers

What is the typical activity/quantity of Cesium 137 in a new gauge?

<p>8-10 millicuries</p> Signup and view all the answers

At the end of the day, you should leave your dosimeter in the gauge case.

<p>False</p> Signup and view all the answers

What does the nucleus contain?

<p>Protons and contains most of the mass of an atom</p> Signup and view all the answers

What is the minimum distance you should keep unauthorized users away from a damaged gauge?

<p>15 feet</p> Signup and view all the answers

Which is the least penetrating type of ionizing radiation to human tissue?

<p>Alpha radiation</p> Signup and view all the answers

If someone inadvertently tips over the gauge, what should they do?

<p>Providing there is no damage, pick it up and resume your work.</p> Signup and view all the answers

Background radiation exposure includes occupational exposure.

<p>False</p> Signup and view all the answers

Regulations for radioactive materials are enforced by whom?

<p>The NRC, Agreement States, U.S.D.O.T and EPA</p> Signup and view all the answers

What is the half-life of Americium 241?

<p>432 years</p> Signup and view all the answers

HAZMAT training must include all of these except?

<p>Vehicle maintenance</p> Signup and view all the answers

Radiation safety training for gauge operators is required.

<p>True</p> Signup and view all the answers

The maximum dose rate at one meter from the package is known as the Transport Index.

<p>True</p> Signup and view all the answers

Being exposed to radiation will turn you radioactive.

<p>False</p> Signup and view all the answers

Green glow, intense heat, crackling sound and ammonia smell are all indications that nuclear radiation is present.

<p>False</p> Signup and view all the answers

A Caution - Radioactive Materials sign is required on the gauge storage area entrance.

<p>True</p> Signup and view all the answers

If the gauge is lost or stolen you should immediately stop everything and look for it.

<p>True</p> Signup and view all the answers

It is okay to leave your gauge with an unlicensed service provider.

<p>False</p> Signup and view all the answers

Can previous relevant gauge safety certification training suffice with your new employer?

<p>True</p> Signup and view all the answers

What are the two types of ionizing radiation used to measure density and moisture?

<p>Neutron, Gamma</p> Signup and view all the answers

New workers can work with a gauge for 90 days while waiting for a training class.

<p>False</p> Signup and view all the answers

You can store your gauge in another state provided:

<p>You have requested and received reciprocity</p> Signup and view all the answers

What does special form relate to?

<p>The double encapsulation around the radioactive</p> Signup and view all the answers

The handle of the gauge must be locked during transport.

<p>True</p> Signup and view all the answers

If I double my distance away from the gauge, my exposure will be:

<p>Reduced by 3/4</p> Signup and view all the answers

When transporting a gauge, you can safely secure, block and brace it:

<p>In the trunk or rear most part of the vehicle</p> Signup and view all the answers

Radiation can be detected because of its green glow, intense heat, crackling sound and ammonia smell.

<p>False</p> Signup and view all the answers

Alpha, beta, neutron and gamma ray photon are all types of ionizing radiation.

<p>True</p> Signup and view all the answers

The time it takes for a radioactive material to decay to ½ its activity/strength is known as a:

<p>Half-life</p> Signup and view all the answers

Which is an effective shield for gamma ray photon radiation?

<p>Lead</p> Signup and view all the answers

What are the four types of ionizing radiation released by the radioactive materials in the gauge?

<p>Alpha, Beta, Neutron, Gamma</p> Signup and view all the answers

Which of the following would require HAZMAT training?

<p>All of the above</p> Signup and view all the answers

The main components of effective ALARA are:

<p>Time, distance, and shielding</p> Signup and view all the answers

You can use moisture density gauges for only those functions described on your license and SSD sheet.

<p>True</p> Signup and view all the answers

Elements that have the same number of protons but different number of neutrons are known as:

<p>Isotopes</p> Signup and view all the answers

Turning the gauge off turns off the radiation.

<p>False</p> Signup and view all the answers

If your gauge is at least 20 years old and you wish to dispose of it, what should you do?

<p>None of the above</p> Signup and view all the answers

Another way to think of ALARA is:

<p>Any unnecessary exposure is an excessive exposure</p> Signup and view all the answers

Chronic radiation exposures are best described as:

<p>Small doses over a long period of time</p> Signup and view all the answers

You should always remove the batteries when not in use. This will prevent the release of radiation.

<p>False</p> Signup and view all the answers

A radiation survey meter is used to:

<p>Determine the presence and activity/quantity of radiation</p> Signup and view all the answers

As long as the shipping company pulls up in a truck with their name on it and the driver wears the shipping company name on their shirt, it is okay to assume the ID of the person is legitimate.

<p>False</p> Signup and view all the answers

New workers can work with a gauge for 90 days while waiting for a training class.

<p>False</p> Signup and view all the answers

Study Notes

Radiation Exposures

  • Acute radiation exposures involve large doses received over a short time.
  • Chronic radiation exposures refer to small doses spread over an extended period.

Radioactive Decay and Isotopes

  • Radioactive decay results in radiation emitted from an unstable nucleus of an element.
  • Isotopes are variations of an element differing in neutron count but having the same number of protons.

Safety and Transportation of Gauges

  • Nuclear gauges are classified under hazard class 7.
  • Secure gauges by blocking and bracing only in designated areas, like the trunk of a vehicle.
  • Two Yellow II Radioactive Labels are required on each gauge case during transport.
  • Essential documents while transporting a gauge include an emergency response sheet and a bill of lading.

Radiation Types and Shielding

  • Alpha radiation is the least penetrating type of radiation; effective shields include paper or skin.
  • Neutron radiation can be shielded effectively using materials like plastic.
  • Gamma rays require dense materials such as lead for protection.
  • Alpha and beta radiations never escape the shielding in the gauge.

Measurement and Monitoring

  • The strength of radioactive material is measured in curies or becquerels.
  • A TLD (Thermoluminescent Dosimeter) or film badge is essential for monitoring radiation exposure.
  • The Transport Index indicates the maximum dose rate at one meter from the package.

Regulations and Training

  • Regulatory enforcement comes from the NRC, U.S.D.O.T, EPA, and Agreement States.
  • HAZMAT training is mandatory for individuals handling radioactive materials while certain roles may not require it (e.g., accountant).
  • Training for gauge operators is mandatory to ensure safe handling practices.

Dosimetry and Exposure Limits

  • A pregnant worker's radiation exposure limit is typically set at 500 millirem.
  • The time it takes for a radioactive material to decay to half of its original activity is termed the half-life.

Emergency Procedures and Compliance

  • If a gauge is lost or stolen, immediately report to the RSO and regulatory agency.
  • In case of a gauge tip-over, check for damage before resuming work.

Miscellaneous Safety Practices

  • Do not store batteries in gauges during periods of inactivity to prevent potential issues.
  • Always adhere to facility regulations and ensure radiological signage is posted in the storage areas.

Disposal and Age Limits

  • Disposal of gauges over 20 years old should follow proper protocols rather than common disposal methods.
  • New workers cannot operate gauges without proper training, even for limited periods.

Key Concepts

  • "ALARA" stands for "As Low As Reasonably Achievable," emphasizing minimization of unnecessary radiation exposure.
  • Background radiation exposure does not count as occupational exposure.

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Test your knowledge with these flashcards focused on nuclear gauge safety certification. The quiz covers essential definitions and concepts, ensuring you understand acute radiation exposures, radioactive decay, hazard classification, and safe transportation practices. Perfect for anyone preparing for safety certification in this field.

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