MISC. RT Safety
Acronyms
RT Safety Units
NDT History
NDT Challenge Q's
100

This fancy radiation detection instrument will reach a maximum reading level and then the needle erroneously drops and reads "zero".

What is a Geiger Counter?

100

ALARA

What is As Low As Reasonably Achievable (or Attainable)?

100

150 R/hr is equal to  how many mR/hr?

What is 150,000 mR/hr?

100

This scientist was the first to win 2 Nobel prizes in the science fields and has a unit of radioactive measurement named after her.

Who is Marie Curie?

100

The range of dose readings in a pocket dosimeter.

What is 0-200 mR/hr?

200

Radiation Detection Survey device that is calibrated every 6 months.

What is a Survey Meter?

200

HVL

What is Half Value Layer?

200

0.500 mR/r is equal to how many R/hr?

What is 0.000500 R/hr?

200

Ancient Roman Artists used this radioactive element in their yellow paint in mosaic tiles.

What is Uranium?

200

A nuclear reaction in which atomic nuclei of a lower atomic number fuse to form a heavier nucleus with the release of energy.  The sun is an example of this process.

What is Nuclear Fusion?

300

This is the first place to look in a medical exam on a human for radiation poisoning.

What is blood cells?

300

RSO

What is a Radiation Safety Officer?

300

Id   (HINT: HVL)

What is Desired Intensity?

300

This local government agency is credited with developing the process to create Zirconium for the US navy Nuclear Propulsion Program in the 1940's.

Who is the Albany Bureau of Mines?

300

The decay of an isotope to 1/2 of it's original intensity.

What is radioactive half-life?

400

The QF for Alpha particles?

What is 20x?

400

SI

What is the International System of units of measurement?

 (Includes most of the base units formerly called metric.)

400

100 ci of IR 192 emits how many R/hr in air, at one foot?

What is 520 R/hr?

400

This guy was the 1st recorded American to die from Excessive X-ray exposure.

Who is Clarence Dally?

400

You will be hired at this ASNT Level for your first NDT inspection job.

What is an ASNT TC-1A Level I trainee?

500

1/2 of the humans exposed to 400-500 REMs to their whole body will die within 30-60 days.

What is Median Lethal Dose (MLD)?

500

MLD

What is Median Lethal Dose?

500

1 Ci of Co-60 emits how many R/hr when measured in air, at 1 foot from the source?

What is 14 R/hr?

500

This unit of measuring isotopes is similar to the Ci but is named after the French Scientist.

Who is Henri Becquerel?

500

3 magnetic elements at normal room temperature.

What is Iron, Cobalt and Nickel?