SUDHARSHAN m INSTITUEmFORm NDTm &m WELDIN
L.33m PHASE
G m IV,m T.N.H.B,m SATHUVACHARI, m VELLORE-
632009m PHONE:m 0416m -2255140,m 9994127091
RADIATION SAFETY EXAM PREPARATION MODEL QUESTIONS
m m m m m
1. AnmIr-192mRadioactivemsourc emwithma ctivit ymofm18 5mGB qmismusedmformr adiogra phy.mRHM=
0.55mRem /Ci /m tr/hr.mAtmwhatmdi stancemamc ordonmof fmwil lmbemplaced?
▪ 70.55mmeters.
▪ 60.55mmeters .
▪ 70.10mmeters .
▪ 60.20mmeters
. mAns :mb .
2. AmRadi oacti vemsourcemgi ve smoutmr adiationmo fm0.05mm Sv/h.mAmradiogr aph ermwork edmfor
mtwomhoursm30mm i nutes. mWhatmi smth emdos emhemh asmr ec ei vedmi nm Rem ?
▪ 0.125mRem
▪ 0.00125mRem
▪ 1.25mRem
▪ 0.0125mRe
mmAns :md .
3. AnmIr-
192mradioacti vemsourcemofm37 0mGB qmismusedman dmR HMmi sm0.55mR em /Ci/m tr/ hr. mA tmwh
atmdistancemamradiographerm wi llmreceiv emra diationm5mm Rem / h?
▪ 35.16mmeters.
▪ 33.26mmeters .
▪ 34.16mmeters .
▪ 33.16mmeters
. mAns :md .
4. AnmIr-
192mRadi oactivemSourcemwithmac ti vitymofm 485 0mm Curiemismus edmformra diograph y.m
Atmwhatmdistancemamcor donmof fmwi l lmbemplac ed.mR HMm= m0.5 5mR em / mCi /mm trm/hr.
▪ 59.64mmeters.
▪ 60.64mmeters .
▪ 70.64mmeters .
▪ 58.64mmeters
. mAns :ma.
5. Amradioactivemsourcemgivesmou tmradia tionmofm0.0 5mm Sv/h.mAmr adiograp hermwo rke dmformt
hreemhoursm30mm inutes. mWhatmism themdo semr ec eivedmb ymhim minmm i croSv?
▪ 175µSv
▪ 17µSv
▪ 15µSv
▪ 185µSv
mA ns : ma.
6. AnmIr-
192mradioacti vemsourcemofm37 00mm Cu riemismused.mR HMmi sm0.55m Rem /Ci/m tr/hr.mAtmwh
atmdistancemamradiographerm wi llmreceiv emra diationm5mm Rem / h?
▪ 20.27mmeters.
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
1m of m72
9000 m– m2001 mAuditor .
, SUDHARSHAN m INSTITUEmFORm NDTm &m WELDIN
▪ 20.17mmetersG
.
▪ 19.17mmeters .
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
2m of m72
9000 m– m2001 mAuditor .
, SUDHARSHAN m INSTITUEmFORm NDTm &m WELDIN
L.33m PHASE
G m IV,m T.N.H.B,m SATHUVACHARI, m VELLORE-
632009m PHONE:m 0416m -2255140,m 9994127091
▪ 19.27mmeters
. mAns :mb .
7. AnmIr-
192mradioacti vemsourcemofm3 700m GBqmismus ed.mAtmwh atmdis tan cemamradiog raph ermw
illmreceivemradi ati onm5mm Rem /h?m RHMmism5.9mR em /Ci/ft/hr.
▪ 344.52mf eet.
▪ 343. 52mf eet.
▪ 343. 51mf eet.
▪ 344. 51mf eet
. mAns :mc .
8. AnmIr-
192msourcemofm740mGBqmismuse d.mA tmwha tmdista ncemwillmrec eivemr adiationm1 0mm Sv/
h?mRHMmism0.55mRem / Ci/m tr/Hr.
▪ 3.346mmeters.
▪ 3.316mmeters .
▪ 3.216mmeters .
▪ 4.316mmeters
. mAns :mb .
9. AmRadi oacti vemgivesmoutmradi ationmofm0. 8mm Sv/h.mAmr adiograp hermw ork edmformf ourmhou
rsm20mm i nutes. mWhatmismthemdos emre cei ve dminmRem ?
▪ 0.03466mRem
▪ 0.3466mRem
▪ 0.003466mRem
▪ 3.466mRe
mmAns :mb .
10. AmRadioactivemgivesmoutmradia tionmofm8 500mm Sv/h. mAmra di ograph ermha smwor kedmfo rmt
hreemhoursm30mm inutes. mWhatmism themdo semr ec eivedminm Rem ?
▪ 2985mRem
▪ 2975mRem
▪ 2875mRem
▪ 2987mRe
mmAns :mb .
11. AmRadioactivemsourcemgive smoutmr adiationmo fm0.5mm Sv/h.mAmr adiogra phermh asmwor ke
dmformfourmhoursm30mm i nutes.mWha tmismth emdos emre ceiv edminmm icroR em ?
▪ 224000mmicro mRem.
▪ 22500mmic ro mRem.
▪ 225500mmic ro mRem.
▪ 225000mmic ro mRem
. mAns :md .
12. Amradiati onmsurveymm etermm e asur edmamdo semr at emofm 0.03 2mSv/ hr.mfrom mam sour cema tma
mdi stancemofmonemm eter. mWhatmi smthemdos emrat ematmamdi s tan cemofm4 0mm ete rmi nmm i crom
Sv,mformco-60msource?
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
3m of m72
9000 m– m2001 mAuditor .
, SUDHARSHAN m INSTITUEmFORm NDTm &m WELDIN
▪ 20mµSv . G
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
4m of m72
9000 m– m2001 mAuditor .
L.33m PHASE
G m IV,m T.N.H.B,m SATHUVACHARI, m VELLORE-
632009m PHONE:m 0416m -2255140,m 9994127091
RADIATION SAFETY EXAM PREPARATION MODEL QUESTIONS
m m m m m
1. AnmIr-192mRadioactivemsourc emwithma ctivit ymofm18 5mGB qmismusedmformr adiogra phy.mRHM=
0.55mRem /Ci /m tr/hr.mAtmwhatmdi stancemamc ordonmof fmwil lmbemplaced?
▪ 70.55mmeters.
▪ 60.55mmeters .
▪ 70.10mmeters .
▪ 60.20mmeters
. mAns :mb .
2. AmRadi oacti vemsourcemgi ve smoutmr adiationmo fm0.05mm Sv/h.mAmradiogr aph ermwork edmfor
mtwomhoursm30mm i nutes. mWhatmi smth emdos emhemh asmr ec ei vedmi nm Rem ?
▪ 0.125mRem
▪ 0.00125mRem
▪ 1.25mRem
▪ 0.0125mRe
mmAns :md .
3. AnmIr-
192mradioacti vemsourcemofm37 0mGB qmismusedman dmR HMmi sm0.55mR em /Ci/m tr/ hr. mA tmwh
atmdistancemamradiographerm wi llmreceiv emra diationm5mm Rem / h?
▪ 35.16mmeters.
▪ 33.26mmeters .
▪ 34.16mmeters .
▪ 33.16mmeters
. mAns :md .
4. AnmIr-
192mRadi oactivemSourcemwithmac ti vitymofm 485 0mm Curiemismus edmformra diograph y.m
Atmwhatmdistancemamcor donmof fmwi l lmbemplac ed.mR HMm= m0.5 5mR em / mCi /mm trm/hr.
▪ 59.64mmeters.
▪ 60.64mmeters .
▪ 70.64mmeters .
▪ 58.64mmeters
. mAns :ma.
5. Amradioactivemsourcemgivesmou tmradia tionmofm0.0 5mm Sv/h.mAmr adiograp hermwo rke dmformt
hreemhoursm30mm inutes. mWhatmism themdo semr ec eivedmb ymhim minmm i croSv?
▪ 175µSv
▪ 17µSv
▪ 15µSv
▪ 185µSv
mA ns : ma.
6. AnmIr-
192mradioacti vemsourcemofm37 00mm Cu riemismused.mR HMmi sm0.55m Rem /Ci/m tr/hr.mAtmwh
atmdistancemamradiographerm wi llmreceiv emra diationm5mm Rem / h?
▪ 20.27mmeters.
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
1m of m72
9000 m– m2001 mAuditor .
, SUDHARSHAN m INSTITUEmFORm NDTm &m WELDIN
▪ 20.17mmetersG
.
▪ 19.17mmeters .
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
2m of m72
9000 m– m2001 mAuditor .
, SUDHARSHAN m INSTITUEmFORm NDTm &m WELDIN
L.33m PHASE
G m IV,m T.N.H.B,m SATHUVACHARI, m VELLORE-
632009m PHONE:m 0416m -2255140,m 9994127091
▪ 19.27mmeters
. mAns :mb .
7. AnmIr-
192mradioacti vemsourcemofm3 700m GBqmismus ed.mAtmwh atmdis tan cemamradiog raph ermw
illmreceivemradi ati onm5mm Rem /h?m RHMmism5.9mR em /Ci/ft/hr.
▪ 344.52mf eet.
▪ 343. 52mf eet.
▪ 343. 51mf eet.
▪ 344. 51mf eet
. mAns :mc .
8. AnmIr-
192msourcemofm740mGBqmismuse d.mA tmwha tmdista ncemwillmrec eivemr adiationm1 0mm Sv/
h?mRHMmism0.55mRem / Ci/m tr/Hr.
▪ 3.346mmeters.
▪ 3.316mmeters .
▪ 3.216mmeters .
▪ 4.316mmeters
. mAns :mb .
9. AmRadi oacti vemgivesmoutmradi ationmofm0. 8mm Sv/h.mAmr adiograp hermw ork edmformf ourmhou
rsm20mm i nutes. mWhatmismthemdos emre cei ve dminmRem ?
▪ 0.03466mRem
▪ 0.3466mRem
▪ 0.003466mRem
▪ 3.466mRe
mmAns :mb .
10. AmRadioactivemgivesmoutmradia tionmofm8 500mm Sv/h. mAmra di ograph ermha smwor kedmfo rmt
hreemhoursm30mm inutes. mWhatmism themdo semr ec eivedminm Rem ?
▪ 2985mRem
▪ 2975mRem
▪ 2875mRem
▪ 2987mRe
mmAns :mb .
11. AmRadioactivemsourcemgive smoutmr adiationmo fm0.5mm Sv/h.mAmr adiogra phermh asmwor ke
dmformfourmhoursm30mm i nutes.mWha tmismth emdos emre ceiv edminmm icroR em ?
▪ 224000mmicro mRem.
▪ 22500mmic ro mRem.
▪ 225500mmic ro mRem.
▪ 225000mmic ro mRem
. mAns :md .
12. Amradiati onmsurveymm etermm e asur edmamdo semr at emofm 0.03 2mSv/ hr.mfrom mam sour cema tma
mdi stancemofmonemm eter. mWhatmi smthemdos emrat ematmamdi s tan cemofm4 0mm ete rmi nmm i crom
Sv,mformco-60msource?
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
3m of m72
9000 m– m2001 mAuditor .
, SUDHARSHAN m INSTITUEmFORm NDTm &m WELDIN
▪ 20mµSv . G
COURSE mDIRECTOR:
ANNAMALAI. mNATARAJAN,
B.E.,m(Mechanical), mP.G.D.MaterialsmManageme
nt,m ASNT mLEVEL mIII m– mRT,mUT,mMT,mPT
AWS-
mCertified mWeldingminspector, m ISOm
4m of m72
9000 m– m2001 mAuditor .
