SDC CERTIFICATION SCRIPT 2026
QUESTIONS WITH SOLUTIONS GRADED A+
◍ What does a SDC train in Mode 5 or 6 consist of?.
Answer: LPSI pump, SDC HX, RB Header and pump, SW header and
pump.The running SW pump may supply both headers of RBCCW.
◍ What is the TS requirement for SDC trains in Mode 5 with RCS loops
filled?.
Answer: One train of SDC operable and in operation with either:1)One
additional train of SDC operable2) SG levels >10% narrow range
◍ staff positions.
Answer: Positions in an organization held by individuals who provide the
administrative and support services that line employees need to achieve the
firm's goals.
◍ What is the minimum level for the SFP when supplying SFPC from SDC
and the basis?.
Answer: 36'8" prevents vortexing and air entrainment in the SFP suction
pipe
◍ What happens during the running LPSI pump during an LNP?.
Answer: The breaker will open during the load shed, and must be manually
re-closed since no SIAS is present.
◍ What is the condition of the LPSI pump manual min-flow isolations while
aligned for SDC and why?.
Answer: ClosedWith the manual isolations open, and SI-659/660 open, RCS
would be transferred to the RWST.
◍ What is the minimum RCS level while on SDC?.
Answer: 4 inches below hot leg centerline
, ◍ line organization.
Answer: An organizational structure with direct, clear lines of authority and
communication flowing from the top managers downward.
◍ What adjustment must be made to the following components to increase
cooldown rate?SI-306SI-657RB-14A/B SDC HX RBCCW outlet
IsolationRB HX TCVs.
Answer: SI-306 throttled closed(output raised or manual handwheel turned
counterclockwise)SI-657 throttled open(output raised or manual handwheel
turned counterlockwise)RB-14A/B throttled openRB HX TCV setpoint
lowered
◍ matrix structure (project management).
Answer: An organizational structure that combines functional and product
departmentalization by bringing together people from different functional
areas of the organization to work on a special project.
◍ What does a SDC train in Mode 4 consist of?.
Answer: LPSI pump, SDC HX, RB Header and pump, SW header and
pump, all from the same facility
◍ What do you do to controller output to close SI-306?.
Answer: Raise output to 100%
◍ Adjustments to what components while on SDC will affect RCS
temperature?.
Answer: SI-306SI-657RBCCW flow to SDC HXRBCCW HX
TCVsAdjustments to LPSI injection valves will affect temperature, but for
the purposes of test-taking, they are used to control total flow.
◍ What are the SDC flow limits in reduced inventory and their basis?.
Answer: 1400gpm for adequate mixing during boron dilution
accident.1600gpm to prevent air entrainment and vortexing in the suction
line.
◍ organization chart.
QUESTIONS WITH SOLUTIONS GRADED A+
◍ What does a SDC train in Mode 5 or 6 consist of?.
Answer: LPSI pump, SDC HX, RB Header and pump, SW header and
pump.The running SW pump may supply both headers of RBCCW.
◍ What is the TS requirement for SDC trains in Mode 5 with RCS loops
filled?.
Answer: One train of SDC operable and in operation with either:1)One
additional train of SDC operable2) SG levels >10% narrow range
◍ staff positions.
Answer: Positions in an organization held by individuals who provide the
administrative and support services that line employees need to achieve the
firm's goals.
◍ What is the minimum level for the SFP when supplying SFPC from SDC
and the basis?.
Answer: 36'8" prevents vortexing and air entrainment in the SFP suction
pipe
◍ What happens during the running LPSI pump during an LNP?.
Answer: The breaker will open during the load shed, and must be manually
re-closed since no SIAS is present.
◍ What is the condition of the LPSI pump manual min-flow isolations while
aligned for SDC and why?.
Answer: ClosedWith the manual isolations open, and SI-659/660 open, RCS
would be transferred to the RWST.
◍ What is the minimum RCS level while on SDC?.
Answer: 4 inches below hot leg centerline
, ◍ line organization.
Answer: An organizational structure with direct, clear lines of authority and
communication flowing from the top managers downward.
◍ What adjustment must be made to the following components to increase
cooldown rate?SI-306SI-657RB-14A/B SDC HX RBCCW outlet
IsolationRB HX TCVs.
Answer: SI-306 throttled closed(output raised or manual handwheel turned
counterclockwise)SI-657 throttled open(output raised or manual handwheel
turned counterlockwise)RB-14A/B throttled openRB HX TCV setpoint
lowered
◍ matrix structure (project management).
Answer: An organizational structure that combines functional and product
departmentalization by bringing together people from different functional
areas of the organization to work on a special project.
◍ What does a SDC train in Mode 4 consist of?.
Answer: LPSI pump, SDC HX, RB Header and pump, SW header and
pump, all from the same facility
◍ What do you do to controller output to close SI-306?.
Answer: Raise output to 100%
◍ Adjustments to what components while on SDC will affect RCS
temperature?.
Answer: SI-306SI-657RBCCW flow to SDC HXRBCCW HX
TCVsAdjustments to LPSI injection valves will affect temperature, but for
the purposes of test-taking, they are used to control total flow.
◍ What are the SDC flow limits in reduced inventory and their basis?.
Answer: 1400gpm for adequate mixing during boron dilution
accident.1600gpm to prevent air entrainment and vortexing in the suction
line.
◍ organization chart.
