Practice Exam #4 1-8 Flashcards
You are providing job coverage for workers inside the containment building repairing a transmitter while the reactor is at full power. The gamma dose rates in the area is 100 mrem/hr gamma and 40 mrem/hr neutron. Based on those dose rates, what would you expect the workers to pick up in 10 minutes. Assume the field is uniform.
23.33 mrem
You are providing job coverage for workers and their EAD dose set point is 200 mrem. The RWP says they have to exit the building when they reach 80% of
their EAD dose set point. They are working in a uniform dose field of 80 mrem/hr gamma. How long can they stay in this area and work?
2 Hours
Worker have been repairing a valve seat inside the containment building while the reactor is operating. The general area dose rate is 30 mrem/hr gamma and 4
mrem/hr neutron. The RWP has set a stay time of 45 minutes in the area. If the workers stay the full 45 minutes what would their exposure be?
25.5 mrem
What would be the total dose to a worker if he was working in an area where the
gamma dose rate was 200 mrem/hr and the airborne concentration from iodine-
131 was 2 DAC. Assume the worker stayed in the area for 2 hours.
410 mrem
If the RWP set a dose limit of 350 mrem for an entry into a steam generator, and assuming the dose gradient is uniform, how long could a worker stay in the area if the gamma dose rate was 12.2 rem/hr? Put your answer in minutes
1.72 minutes
Which of the following is a fission product barrier for either a BWR or PWR reactor design?
Fuel cladding
In a Boiling Water Reactor, BWR, the turbine is contaminated. This is a result of water being boiled in the core, sent through moisture separators and dryers, and then into the turbine. True or False?
True
In determining the statistical operation of a counting instrument, if the counts are close to the mean value, which of the following statements is correct?
The curve will be higher and steep and have a low numerical value for the standard deviation acceptance criteria.
