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IRR 130 INFRARED THEORY

Q1) Qualitative thermography ivolve! temperature mea!uremet"

a) True

b) False

Q#) Emi!!ivity re$er! to a% o&'e(t! a&ility to ra%iate i$rare% eergy"

a) True

b) False

Q3) It i! ea!ier to %ete(t !mall Delta T! $or o&'e(t! havig lo* emitta(evalue!"

a) True

b) False

Q+) Hot a% (ol% re$le(tio! $rom ear&y o&'e(t! (a (au!e !igi$i(aterror!"

a) True

b) False

Q,) -i.el (out %etermie! the re!olutio o$ a thermal imager"

a) True

b) False

Q/) A ra%iometer! (ali&ratio may oly &e te!te% &y the mau$a(turer o$ the!u&'e(t !y!tem"

a) True

b) False

Q) For thermal imagig $o(u! i! o$ paramout importa(e"

a) True

b) False

Q2) O a thermal imager the $eature o* a! 4Auto Image5 *ill al*ay!provi%e optimal !ettig! $or rage a% level

a) True

b) False

Q6) I$rare% thermography (a &e u!e% to !ee through *all! a%! !oli%!tru(ture!"

a) True

b) False

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Q10) I$rare% i!pe(tio! o$ ele(tri(al !y!tem! !houl% oly &e per$orme%%urig perio%! o$ ma.imum po!!i&le loa%ig"

a) True

b) False

Q11) E.(eptio! e.hi&itig high Delta7T! *ill al*ay! $ail !ooer thae.(eptio! e.hi&itig lo* Delta7T!"

a) True

b) False

Q1#) For &alla!te% roo$ig !y!tem! a((urate i$rare% i!pe(tio! may o &epo!!i&le"

a) True

b) False

Q13) Thermal imagig (amera! a% i$rare% $ilm pro%u(e !imilar re!ult! *heit (ome! to %ete(tig heat"

a) True

b) False

Q1+) It i! po!!i&le to a((urately %ete(t pro&lem! i!i%e a ele(tri(al pael orother !u(h e8uipmet *ithout removig the (over"

a) True

b) False

Q1,) The emi!!ivity (orre(tio value o$ (opper i!

a) .68

b) .05

c) .10

d) Any of the above

Q1/) 9hi(h o$ the $ollo*ig i! e!!etial i$ormatio to help you a!!e!! therepair priority o$ a (ompoet $ou% *ith your i$rare% (amera:

a) Age of the component

b) Crtcalty of the component

c) Temperature of the component

d) The !ave band beng detected

Q1) 9hat !ta%ar%! are availa&le to gui%e a thermographer *ho i! i!pe(tig

ele(tri(al a% me(hai(al e8uipmet:

a) "F#A $0A

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b) A%T& 1'(

c) *%+ 18,5

d) There are no standards relatng to thermography.

Q12) You are (o!i%erig the pur(ha!e o$ a i$rare% (amera that *ill &e u!e%

primarily $or i%oor ma(hie i!pe(tio! at (lo!e %i!ta(e ;up to 10 $eet$rom the (ompoet)" 9hi(h o$ the $ollo*ig !pe(i$i(atio! i! importati your (hoi(e:

a) Feld of ve!

b) %patal resoluton

c) &nmum focus

d) All of the above

Q16) You !ee a 4hot !pot5 o a heavily o.i%i


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Q#3) I$ the emi!!ivity o$ a material e8ual! 0"10 *hat type o$ material *oul%you mo!t liely &e looig at:

a) ood

b) #lastc

c) %hny metald) #anted metal

Q#+) A 10000 gallo out!i%e ta i! appro.imately hal$ $ull o$ a li8ui%" Night!are (ool a% (lear" At high oo o the $ollo*ig %ay *hi(h i! *arm a%!uy *hi(h %e!(ri&e! *hat you *ill pro&a&ly !ee:

a) The l3ud !ll appear cooler than the ar n the top of the tan

b) %ludge n the tan !ll appear cooler than the l3ud

c) The l3ud !ll be !armer than the ar

d) The l3ud and sludge !ll be the same temperature

Q#,) A material ha! a re$le(tivity o$ 0"10 a% it! tra!mi!!ivity o$ 0"10" 9hati! it! emi!!ivity:

a) 0.10

b) 0.(0

c) 0.80

d) 1.00

Q#/) Di$$u!ivity i! %e$ie% a!=

a) Conductvty dvded by thermal capactanceb) %pecfc heat tmes conductvty

c) %pecfc heat tmes densty dvded by conductvty

d) 4ensty dvded by specfc heat

Q#) A! per A>T? @11,3 a goo% time to lo(ate the thermal !igaturea!!o(iate% *ith *et i!ulatio i roo$! u!ig thermography i!=

a) An hour or t!o after sunset on a sunny day

b) About , #.& on a sunny afternoon

c) About $ A.& n the mornng f t/s overcast

d) To! days after ran and at !nds of 15 or greater

Q#2) 9ie! a* pre%i(t! *hat:

a) The mamum temperature at a gven !avelength.

b) The pea !avelength emtted by a blacbody at a gven temperature

c) The range of !avelengths emtted by a surface at a gven temperature

d) The 3uantty of heat energy radated by an ob7ect at a gven temperature

Q#6) @ompare% to photoi( %ete(tor! the mai a%vatage o$ a pyroele(tri(

vi%i(o tu&e i!a. gh detectvty

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b. de spectral response

c. ood mage 3ualty

d. Compact hand held nstruments

e. ood stablty and lo! nonlnearty

Q30) A importat (hara(teri!ti( o$ a thermal imagig !y!tem *hi(h allo*!evaluatio o$ the !patial geometri(al 8uality o$ a (amera i!

a) &9T4 :&nmum 9esolvable Temp. 4fference)

e) &4T4 :&nmum 4etectable Temp. 4fference)

f) ";T4 :"ose ;3uvalent Temp. 4fference)

g) %F :ne %pecal Functon)

h) All of the above

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IRR 130 INFRARED THEORY

ANSWERS

Q.NO ANSWER

1 B

2 A

3 B

4 A

5 B

6 B

7 A

8 A

9 B

10 B

11 B

12 A

13 B14 B

15 D

16 B

17 B

18 D

19 C

20 B

21 D

22 C

23 C

24 D

25 C

26 A

27 A

28 B

29 D

30 D

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