FUN 2 EO: 1.4-k - Radiation Protection Tech.

FUN 2 EO: 1.4-k

1 / 12

What ensures that containment can be isolated in the BWR Main Steam System?

Safety Relief Valves

Steam Dryer

Main Steam Isolation Valves (MSIV)

Moisture Separators

2 / 12

In the event of over-pressurization, where do Safety Relief Valves and Emergency Relief Valves exhaust to?

Suppression pool, Torus, or containment

Wetwell

Main Turbine

Reactor vessel

3 / 12

How quickly are MSIVs designed to fail closed to stop the flow of steam?

10 to 15 seconds

3 to 5 seconds

1 to 2 minutes

30 to 45 seconds

4 / 12

What radiological hazard does steam in the Main Steam System pose due to short-lived isotopes?

It emits low energy gamma photons

It condenses rapidly inside the pipes

It causes torsional strain along the Main Turbine Shaft

It causes high radiological conditions needing control for Locked High Radiation Areas

5 / 12

What is the purpose of the Main Steam System in BWR?

To direct the flow of steam from the reactor to the main turbine and other equipment

To support the floor slabs of the reactor building

To prevent fission products from escaping

To condense steam from the reactor

6 / 12

Which containment design consists of a drywell and a wetwell (suppression pool)?

Only Mark III

Mark I and Mark II

Only Mark I

Mark II and Mark III

7 / 12

What is the main function of the suppression pool in the Mark III containment design?

To provide a heat sink

To rapidly condense directed steam

To support the drywell

To confine fission products

8 / 12

What is the main purpose of primary containment in Boiling Water Reactor Containments?

To store the reactor's spent fuel

To contain fission products from a loss of coolant accident and prevent exceeding offsite radiation doses

To control torsional strain along the Main Turbine Shaft

To generate steam

9 / 12

In the Mark III containment, what is the role of the drywell?

To confine steam during a pipe rupture and direct it into the suppression pool

To store the spent fuel

To serve as the main steam system

To provide a heat sink

10 / 12

In the Mark II containment design, what is the drywell topped by?

An elliptical steel dome

A suppression pool

A concrete slab

A moisture separator

11 / 12

What is the principal contributor to dose rates in the first minute that the steam is in the system?

Steam Dryer

N-16

Safety Relief Valves

MSIV

12 / 12

What surrounds the reactor vessel and recirculation loops in the Mark I containment design?

Drywell

Suppression chamber

Emergency core cooling systems

Steam Dryer

Your score is

PreviousFUN 2 EO: 1.4-kNext

Share your results with your friends!!