NLN PRACTICE QUESTIONS WITH 100%
CORRECT ANSWERS
1 akilogram a(kg) aof asolid aX aat a10°C aand a1 akg aof asolid aY aat a10°C aeach aabsorb
a5 ajoules aof aheat aenergy. aThe afinal atemperatures aof aX aand aY aare a15°C aand
a20°C, arespectively. aCompared ato aX, aY amust ahave aa alower
aspecific aheat.
aconductive aheat.
aheat aof afusion.
aheat aof avaporization. a- acorrect aanswers a-specific aheat.
,A adrop aof adilute aammonium ahydroxide a(NH4OH) ais aplaced aon aone aside aof aa
aslide acontaining aa alarge anumber aof aswimming aparamecium. aUnder athis
acondition, awhich aof athese abehaviors aof athe aparamecia awill abe aobserved?
aThey awill aeventually aall aswim atoward athe aammonium ahydroxide.
aThey awill ashow ano anet achange ain abehavior ato athe aammonium ahydroxide.
aThey awill aall abe ainstantly akilled aby athe aammonium ahydroxide.
aThey awill aeventually aall aswim aaway afrom athe aammonium ahydroxide. a- acorrect
aanswers a-They awill aeventually aall aswim aaway afrom athe aammonium ahydroxide.
A amethod afor adetermining athe ablood aalcohol acontent aof aa asubject ais ato
ado aa aMantoux atest.
ado aa aDick atest.
ause aa aBreathalyzer.
ainspect athe asize aof athe apupils. a- acorrect aanswers a-use aa aBreathalyzer.
A aphysician ameasures athe apulse aand ablood apressure a(BP) aof aall apatients aon aa
aroutine abasis. aWhich aof athese ameasurements ashow athe anormal aBP avalues afor aa
aresting aadult apatient?
a125/95 amm aHg
a120/80 amm aHg
a100/80 amm aHg
a72/120 amm aHg a- acorrect aanswers a-120/80 amm aHg
A awoman asuddenly achokes aon aa apiece aof afood aand aclutches afrantically aat aher
athroat. aAn aimmediate aremedy ais ato
ahave aher abend aforward aand atell aher ato acough.
ainsert aa afinger aor aa ablunt aobject atoward athe aback aof athe amouth.
aapply aquick, ahard apressures asuccessively ato aher aabdomen, ajust abeneath aher
adiaphragm.
aphone a"emergency" afor ahelp a- acorrect aanswers a-apply aquick, ahard apressures
asuccessively ato aher aabdomen, ajust abeneath aher adiaphragm.
An aunknown agas ais amore adense athan aair, adoes anot asupport acombustion, aand
aturns aa alimewater asolution acloudy. aThis agas ais amost aprobably
aammonia.
amethane.
acarbon adioxide.
ahydrogen. a- acorrect aanswers a-carbon adioxide
If athe amedulla aof athe abrain ain aa ahuman awas adamaged, awhich aof athese
aconditions awould amost alikely aresult?
aInability ato aremember.
aDifficulty ain abreathing.
aInability ato aspeak.
aBlurred avision. a- acorrect aanswers a-Difficulty ain abreathing.
, In adiagnostic atesting, athe aelectroencephalogram apermits athe aphysician ato
aexamine athe aimpulses aof athe aspecialized amuscle acells aof athe aheart.
aexamine athe aimpulses aof athe anerve acells awithin athe abrain.
ameasure athe apressure awithin athe aeye.
ameasure athe aamount aof aair aupon aexhalation. a- acorrect aanswers a-examine athe
aimpulses aof athe anerve acells awithin athe abrain.
In aecological asuccession, athe afirst aliving athing ato acolonize aa ahitherto abarren aarea
ais acalled aa
aproducer.
aprimary aconsumer.
apioneer aorganism.
acarnivore. a- acorrect aanswers a-pioneer aorganism.
In avarieties aof amatter, athe aterm aheterogeneous amay abe aapplied ato
aelements, abut anot acompounds.
acompounds, abut anot aelements.
acompounds aand aelements, abut anot amixtures.
amixtures, abut anot aelements aor acompounds. a- acorrect aanswers a-mixtures, abut
anot aelements aor acompounds.
Periodontitis ais aan ainflammatory acondition aof athe
agum atissue athat asurrounds athe aneck aof aeach atooth.
apulp athat acontains anerve acells aand ablood avessels aof athe atooth.
adentin athat asurrounds athe asoft apart aof aa atooth.
aenamel athat aprovides aa ahard asurface afor achewing. a- acorrect aanswers a-gum
atissue athat asurrounds athe aneck aof aeach atooth.
The aatoms aof aan aelement awith aseven avalence aelectrons aare amost aprobably
aclassified aas
ametals.
anonmetals.
ametalloids.
anoble agases. a- acorrect aanswers a-metals.
The abending aof aa awave aaround aan aobstacle ais aknown aas
adiffraction.
adeflection.
arefraction.
areflection. a- acorrect aanswers a-diffraction.
The ainherited afactors athat aare atransmitted ain aan aorganism afrom ageneration ato
ageneration aare acalled aits
ahomozygote.
aheterozygote.
agenotype.
CORRECT ANSWERS
1 akilogram a(kg) aof asolid aX aat a10°C aand a1 akg aof asolid aY aat a10°C aeach aabsorb
a5 ajoules aof aheat aenergy. aThe afinal atemperatures aof aX aand aY aare a15°C aand
a20°C, arespectively. aCompared ato aX, aY amust ahave aa alower
aspecific aheat.
aconductive aheat.
aheat aof afusion.
aheat aof avaporization. a- acorrect aanswers a-specific aheat.
,A adrop aof adilute aammonium ahydroxide a(NH4OH) ais aplaced aon aone aside aof aa
aslide acontaining aa alarge anumber aof aswimming aparamecium. aUnder athis
acondition, awhich aof athese abehaviors aof athe aparamecia awill abe aobserved?
aThey awill aeventually aall aswim atoward athe aammonium ahydroxide.
aThey awill ashow ano anet achange ain abehavior ato athe aammonium ahydroxide.
aThey awill aall abe ainstantly akilled aby athe aammonium ahydroxide.
aThey awill aeventually aall aswim aaway afrom athe aammonium ahydroxide. a- acorrect
aanswers a-They awill aeventually aall aswim aaway afrom athe aammonium ahydroxide.
A amethod afor adetermining athe ablood aalcohol acontent aof aa asubject ais ato
ado aa aMantoux atest.
ado aa aDick atest.
ause aa aBreathalyzer.
ainspect athe asize aof athe apupils. a- acorrect aanswers a-use aa aBreathalyzer.
A aphysician ameasures athe apulse aand ablood apressure a(BP) aof aall apatients aon aa
aroutine abasis. aWhich aof athese ameasurements ashow athe anormal aBP avalues afor aa
aresting aadult apatient?
a125/95 amm aHg
a120/80 amm aHg
a100/80 amm aHg
a72/120 amm aHg a- acorrect aanswers a-120/80 amm aHg
A awoman asuddenly achokes aon aa apiece aof afood aand aclutches afrantically aat aher
athroat. aAn aimmediate aremedy ais ato
ahave aher abend aforward aand atell aher ato acough.
ainsert aa afinger aor aa ablunt aobject atoward athe aback aof athe amouth.
aapply aquick, ahard apressures asuccessively ato aher aabdomen, ajust abeneath aher
adiaphragm.
aphone a"emergency" afor ahelp a- acorrect aanswers a-apply aquick, ahard apressures
asuccessively ato aher aabdomen, ajust abeneath aher adiaphragm.
An aunknown agas ais amore adense athan aair, adoes anot asupport acombustion, aand
aturns aa alimewater asolution acloudy. aThis agas ais amost aprobably
aammonia.
amethane.
acarbon adioxide.
ahydrogen. a- acorrect aanswers a-carbon adioxide
If athe amedulla aof athe abrain ain aa ahuman awas adamaged, awhich aof athese
aconditions awould amost alikely aresult?
aInability ato aremember.
aDifficulty ain abreathing.
aInability ato aspeak.
aBlurred avision. a- acorrect aanswers a-Difficulty ain abreathing.
, In adiagnostic atesting, athe aelectroencephalogram apermits athe aphysician ato
aexamine athe aimpulses aof athe aspecialized amuscle acells aof athe aheart.
aexamine athe aimpulses aof athe anerve acells awithin athe abrain.
ameasure athe apressure awithin athe aeye.
ameasure athe aamount aof aair aupon aexhalation. a- acorrect aanswers a-examine athe
aimpulses aof athe anerve acells awithin athe abrain.
In aecological asuccession, athe afirst aliving athing ato acolonize aa ahitherto abarren aarea
ais acalled aa
aproducer.
aprimary aconsumer.
apioneer aorganism.
acarnivore. a- acorrect aanswers a-pioneer aorganism.
In avarieties aof amatter, athe aterm aheterogeneous amay abe aapplied ato
aelements, abut anot acompounds.
acompounds, abut anot aelements.
acompounds aand aelements, abut anot amixtures.
amixtures, abut anot aelements aor acompounds. a- acorrect aanswers a-mixtures, abut
anot aelements aor acompounds.
Periodontitis ais aan ainflammatory acondition aof athe
agum atissue athat asurrounds athe aneck aof aeach atooth.
apulp athat acontains anerve acells aand ablood avessels aof athe atooth.
adentin athat asurrounds athe asoft apart aof aa atooth.
aenamel athat aprovides aa ahard asurface afor achewing. a- acorrect aanswers a-gum
atissue athat asurrounds athe aneck aof aeach atooth.
The aatoms aof aan aelement awith aseven avalence aelectrons aare amost aprobably
aclassified aas
ametals.
anonmetals.
ametalloids.
anoble agases. a- acorrect aanswers a-metals.
The abending aof aa awave aaround aan aobstacle ais aknown aas
adiffraction.
adeflection.
arefraction.
areflection. a- acorrect aanswers a-diffraction.
The ainherited afactors athat aare atransmitted ain aan aorganism afrom ageneration ato
ageneration aare acalled aits
ahomozygote.
aheterozygote.
agenotype.
