f.ngh.j. (c.ju)g; guPl;ir njhopDl;gtpay; ghlj;Jiw - doenets.lk System Technology Answers... · f.ngh.j. (c.ju)g; guPl;ir njhopDl;gtpay; ghlj;Jiw 66 - capu;Kiwikfs; njhopDl;gtpay;

f.ngh.j. (c.ju)g; guPl;ir

njhopDl;gtpay; ghlj;Jiw

66 - capu;Kiwikfs; njhopDl;gtpay;

2015 Mk; Mz;bYk; mjd; gpd;dUk; eilngwTs;s guPl;irf;fhf

jahupf;fg;gl;l khjpup tpdhf;fSf;Fupa

tpilfSf;fhd topfhl;b

CurriculumAssessment

&Evaluation

Teaching LearningN E T S

Ma;T mgptpUj;jpf; fpis>

Njrpa kjpg;gPl;bw;Fk; guPl;rpj;jYf;Fkhd Nrit>

,yq;ifg; guPl;irj; jpizf;fsk;.

2015 Mk; Mz;bYk; mjd; gpd;dUk; eilngwTs;s capu;Kiwikfs; njhopDl;gtpay; khjpup tpdhf;fspd;


f.ngh.j. (c.ju)g; guPl;ir capu;Kiwikfs; njhopDl;gtpay;

2015 Mk; Mz;bYk; mjd; gpd;dUk; eilngwTs;s guPl;irf;fhf jahupf;fg;gl;l khjpup tpdhf;fspd;


gj;jpuk; I

tpdh tpil tpdh tpil

,yf;fk; ,yf;fk;

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f.ngh.j. (c.ju)g; guPl;ir capu;Kiwikfs; njhopDl;gtpay;

2015 Mk; Mz;bYk; mjd; gpd;dUk; eilngwTs;s guPl;irf;fhf jahupf;fg;gl;l khjpup tpdhf;fspd;


gj;jpuk; II

gFjp A - mikg;Gf; fl;Liu

1. (A) (i) tsp kz;lyj;jpYs;;s ePuhtp jpz;k my;yJ jput epiyapy; Gtpapy; tpOjy;. ^03 Gs;spfs;&

(ii) (1) epuk;gy; epiy ^03 Gs;spfs;&

(2) mjpf fsp nfhz;l kz;$ ,Wf;fkile;j kz;$ kz;zpd; Fwpg;gpl;l Moj;jpYs;s

CLGfhtplhf; fbdg; gil ^03 Gs;spfs;&

(3) (a) kz; ,ioaikg;G$ kz; fl;likg;G ^03 Gs;spfs;&

(b) kz; Nrjdg; nghUs; msT ^03 Gs;spfs;&

(4) 27% my;yJ 0.27(116.8 - 112) × 1.8 = 0.27 (112 - 80) = 0.27 × 100 = 27%

^03 Gs;spfs;&

(B) (i) (1) kz;Zf;Fr; Nrjdg; nghUl;fs; Nru;jy;$ rupahd kz; gz;gLj;jy;. ^03 Gs;spfs;&

(2) etPd gapu;r;nra;iff; Nfhyq;fs;> Kiwfs; Mfpatw;iwg; gad;gLj;jy;. ^03 Gs;spfs;&

(ii) (1) ePu; (2) fhw;W

(3) GtpaPu;g;G $ mq;fpfspd; nraw;ghL ^03 Gs;spfs;&

(iii) (1) KOgilaply;

(2) gy;NtW gapu;r;nra;if Kiwfs;

(3) %Lg;gapu;r; nra;ifAk; NtW KiwfSk; ^03 Gs;spfs;&

(C) (1) tptrha tdr;nra;if ^03 Gs;spfs;&

(2) xd;wpide;j td Kfhikj;Jtk; ^03 Gs;spfs;&

(3) tPl;Lj;Njhl;lr; nra;if$ fpuhkpa td tsu;g;G ^03 Gs;spfs;&

(D) (1) ghupa njhl;bapy; cupa fhyj;Jf;F ePiur; Nrfupj;jy; (ngupa Jzpf;iffs; miltjw;F)

^03 Gs;spfs;&

(2) myk; Nru;j;jy; - gbjy; eilngw ^03 Gs;spfs;&

(E) (i) (a) ghJfhf;fg;gl;l kidapd; ntg;gepiyiaf; Fiwj;jy;. ^03 Gs;spfs;&

(b) xd;wpize;j gapu; Kfhikj;Jt Kiwfisf; iff;nfhs;sy;. ^03 Gs;spfs;&

(c) fha;fis Ijhf;Fjy;. ^03 Gs;spfs;&

(d) Nghrizf; fiurypd; pH, EC Mfpatw;iwr; rPu;nra;jy;. ^03 Gs;spfs;&

(ii) kur;ryhif ,y;yk; / yj; ,y;yk;. ^03 Gs;spfs;& ^nkhj;jg; Gs;sp 60&

- 02 -



2. (A) (i) ikaePf;f tpir ^03 Gs;spfs;&

(ii) P - gk;gpapd; ftrk; (Casing) ^03 Gs;spfs;&

Q - js;spapYs;s rpwFfs; (Veins) ^03 Gs;spfs;&

R - js;spapYs;s fz; (eye) ^03 Gs;spfs;&

(iii) (1) J}ty; ePu;ghgrdk; ^03 Gs;spfs;&

(2) JspKiw ePu;g;ghrdk; ^03 Gs;spfs;&

(iv) (1) ePu;g;gk;gp nraw;glhik ^03 Gs;spfs;&

(2) ePu;f; frpT $ ePu; cupathW ntspNawhik ^03 Gs;spfs;&

(v) tbfl;b ,ly;

jhq;fpapy; ePiuj; Njf;fp njhq;fy;epiyg; gjhu;j;jq;fis gbar; nra;jy;. ^03 Gs;spfs;&

(B) (i) (1) myq;fhu kPd; Vw;Wkjp ^03 Gs;spfs;&

(2) ePu;j;jhtu Vw;Wkjp ^03 Gs;spfs;&

(ii) (1) Guj %yk; ^03 Gs;spfs;&

(2) nghUshjhu mD$yq;fs; ^03 Gs;spfs;&

(iii) (1) Cabomba/ Limnophila/ Valsnaria/ Sagittaria ^03 Gs;spfs;&

(2) Aponogeton/ Cryptecoryne ^03 Gs;spfs;&

(C) (i) (1) fiue;Js;s jpz;kg; nghUl;fspd; msT$ nkd;ikAk; fbdj;jd;ikAk;. ̂03 Gs;spfs;&

(2) pH ngWkhdk; ^03 Gs;spfs;&

(3) epwk; ^03 Gs;spfs;&

(ii) (1) mWtilnra;aTs;s tpisr;ry;> Kjpuhj tpisr;ry; Mfpatw;Wf;Fg; ghjpg;G

Vw;gly;.

^03 Gs;spfs;&

(2) Ntiytha;g;gpd;ik fhuzkhf Vw;gLk; r%fg; gpur;rpid$ nghwpKiwr; Nrjk;

Vw;gly;. ^03 Gs;spfs;&

^nkhj;jg; Gs;spfs; 60&

3. (A) (i) (1) Rw;Wyhj; njhopYf;F ^03 Gs;spfs;&

(2) ntspehl;L re;ijf;F Vw;kjp nra;jy;. ^03 Gs;spfs;&

(3) efu> G+q;fh myq;fupg;Gf;nfd nrbfis tpdpNahf;fpj;jy;. ^03 Gs;spfs;&

(ii) (1) ituR Neha; guk;ghik ^03 Gs;spfs;&

(2) FWfpa fhyj;jpy; gy ehw;Wfisg; ngwKbjy;. ^03 Gs;spfs;&

(B) (i) (a) toq;fpg; gRtpid #yplr; nra;jy;. ^03 Gs;spfs;&

(b) toq;fpg; gRtpw;F rpidg;gLj;jiy Nkw;nfhs;sy;. ^03 Gs;spfs;&

(c) Kisa kjpg;gPL ^03 Gs;spfs;&

(d) thq;fpg; gRitj; njupTnra;jYk; jahu;gLj;jYk;. ^03 Gs;spfs;&

(ii) (1) njhopDl;g mwpT Njitg;gly; ^03 Gs;spfs;&

(2) guk;giuayFg; gy;tifik Fiwtiljy;. ^03 Gs;spfs;&

(C) (i) (1) G+uz cUkhw;wk; ^03 Gs;spfs;&

(2) G+uzkw;w cUkhw;wk;. ^03 Gs;spfs;&

(ii) (1) G+r;rp gPiliaf; fl;Lg;gLj;j Ntz;ba re;ju;g;gj;ij ,dq;fhzy;. ^03 Gs;spfs;&

(2) gPilfs; ghjpg;ig Vw;gLj;Jk; re;ju;g;gj;ij ,dq;fhzy;. $

gPilf;fl;Lg;ghl;Lf;fhd eltbf;iffisj; jPu;khdpj;jy;. ^03 Gs;spfs;&

- 03 -



(D) (i) GtpNkw;gug;G epy msitapd;NghJ Gtpapd; Nfhstbtk; ftdj;jpw; nfhs;sg;gLtJld;

rkjiu epy msitapd;NghJ Gtp Nkw;gug;G jl;ilahdJ vdf; nfhs;sg;gLk;. ^03 Gs;spfs;&

(ii) (1) 3H my;yJ mjidtplf; fUikahd ngd;rpiyg; gad;gLj;jy;. $ Ngdhitg;

gad;gLj;jhjpUj;jy;. ^03 Gs;spfs;&

(2) epy msit mstPLfis gpioahf fsg;Gj;jfj;jpy; Fwpg;Nghkhapd; mjid xU FWf;Ff;

Nfhl;lhy; ntl;b rupahd ngWkhdj;ij mjw;F NkNy vOJjy;. fsg;Gj;jfj;jpd; tyJ

gf;fj;ij gUkl;lhd tupglj;ij tiuag; gad;gLj;j Ntz;Lk;. ,lJgf;fj; jhis

juTfisf; Fwpf;fg; gad;gLj;Jf. mstPl;ilg; ngw;wTld; clNdNa fsg;Gj;jfj;jpy;

Fwpj;Jf; nfhs;f.

^03 Gs;spfs;&

(iii) (1) jug;gl;l Gs;spiaAk; ikaj;ijAk; ,izf;Fk; NfhL. J}f;Ff; Fz;ilj;

njhq;ftpLk;NghJ me;j E}y; vg;NghJk; epiyf;Fj;J Nfhl;ilf; fhl;Lk;.

^03 Gs;spfs;&

(2) epiyf;Fj;Jf; Nfhl;Lf;Fr; nrq;Fj;jhf tiuag;gLk; NfhL. ^03 Gs;spfs;&

^nkhj;jg; Gs;spfs; 60&

4. (A) Jizg;ghfq;fspd; ngau; gad;ghL

(i) jilap kpd;Ndhl;lj;ij fl;Lg;gLj;jy;. ^03 Gs;spfs;&

(ii) nfhs;sstp kpd;rf;jpia Vw;wkhf jw;fhypfkhfr; Nrkpj;jy;. ^03 Gs;spfs;&

(iii) jpuhd;rp];uu; Msp> tpupayhf;fpahfg; gad;gLj;jg;gly;. ^03 Gs;spfs;&

(iv) ,Uthap xU jpirapy; kl;Lk; kpd;Ndhl;lj;ijg; ghar; nra;jy;.

^03 Gs;spfs;&

(B) (i) ngau; gad;ghL

(a) tl;lj;jl;L guk;gb fUtp kz; fl;bfisj; J}u;itahf;fy;. ^03 Gs;spfs;&

(b) tl;lj;jl;Lf; fyg;ig Muk;gg; gad;gLj;jy;. ^03 Gs;spfs;&

(c) Kl;fyg;ig Jizg; gad;gLj;jy;. ^03 Gs;spfs;&

(d) Roy; fyg;ig kz; fl;bfisj; J}u;itahf;fy;. ^03 Gs;spfs;&

(ii) (1) rhw;wpidf; nfhz;Ls;s ,ioaj;jpd; jd;ik ^03 Gs;spfs;&

(2) rhW mlq;fpAs;s ,lk; (Rug;gp$ fyd;) Rug;gpfs> fyd;fspd; Mok;. ^03 Gs;spfs;&

(3) fhd;fs; mike;Js;s Nfhzk;$ ntl;L fhakhw vLf;Fk; fhyk;. ^03 Gs;spfs;&

(C) (1) SLS ^03 Gs;spfs;&

(2) ISO ^03 Gs;spfs;&

(D) (1) xl;rpNaw;wj; jhf;fj;ijj; jtpu;g;gjd; %ykhf cztpd; Ngz;jF fhyj;ij ePbj;jy;.

^03 Gs;spfs;&

(2) cztpd; Nghrhf;Fj; jd;ikiag; NgZjy;. ^03 Gs;spfs;&

(E) (i) fpoq;F ntl;baJk; fgpy epwkhjy;. ^03 Gs;spfs;&

ghzpd; kPJ G+Q;rdq;fs; tsu;jy;. ^03 Gs;spfs;&

(ii) (1) Fiwthd ntg;gepiyapy; fsQ;rpag;gLj;jy;. ^03 Gs;spfs;&

(2) Fiwthd pH ,y; fsQ;rpag;gLj;jy;. ^03 Gs;spfs;&

(3) ew;fhg;Gg; gjhu;j;jq;fis ,ly;. ^03 Gs;spfs;& ^nkhj;jg; Gs;spfs; 60&

- 04 -



gFjp B fl;Liu tpdhf;fs;

5. (i) Ú fhzpapd; vy;iyfs; kw;Wk; Vida tptuq;fs; (fl;llq;fs;) Mfpatw;iw ed;F mtjhdpf;ff;$ba

,lj;jpy; jsgPlj;ij mjd; Kf;fhypapd; kPJ itj;jy;.

Ú tiujy; jhis jsNkirapy; xl;b ePu;kl;lj;jpidg; gad;gLj;jp Nkirapd; kl;lj;ijr; nrg;gQ;

nra;jy;.

Ú jpirr;fhl;biag; gad;gLj;jp tiujw;jhspd; tyg;gf;f Nky;%iyapy; jpiriaf; Fwpj;Jf;

nfhs;sy;. ,jw;nfd jpirf;fhl;bapd; Xuj;ij tiujy; jhspd; Xuj;Jf;Fr; rkhe;jukhf itj;J

tlf;Fj; jpir jhspd; Nky; jpirapy; ,Uf;FkhW Nkiriar; Row;Wjy;.

Ú Nkir nghUj;jg;gl;Ls;s ,lj;jpy; jhspy; Fz;^rpapidg; nghUj;jpf; Fwpj;Jf; nfhs;sy;.

(,e;jg; Gs;spia p vd Mq;fpy rpw;nwOj;jpd; %yk; Fwpj;jy;.)

Ú tiujy; jhspy; p vdf; Fwpf;fg;gl;l Gs;sp epyj;jpy; gpujpepjpj;Jtg;gLj;Jk; Gs;spis U fit kw;Wk; J}f;Ff;Fz;L Mfpatw;wpd; cjtpAld; mwpjy;.

Ú fhzpapd; %iyfspy; tiughl;Lf; Nfhy;fisg; gpbj;J Alidade ,d; ePz;l JisapD}

lhf mtjhdpj;J mjd; epiyf;Fj;Jf; Nfhl;Lld; tiughl;Lf; Nfhy;fs; xNu Neu;Nfhl;by;

mikAk;NghJ NfhLfis tiujy;.

Ú msT ehlhtpd; cjtpAld; Gs;sp P apypUe;J mt;tg; Gs;spfSf;fhd J}uj;ij mse;J cupa

mstpilapy; tiuglj;ijf; Fwpj;J cupa Gs;spfis ,izj;jy;.

Ú fhzpapd; ngau;> mstpil> mstPl;il Nkw;nfhz;ltupd; ngau; Mfpatw;iw ,l;L tiujiyg;

G+uzg;gLj;jy;.

^30 Gs;spfs;&

(ii) Ú ePu;g;ghrdj; njhFjpia jd;dpaf;fg;gLj;jy; gw;wpa mwpKfk;.

Ú ePu;g;ghrd ,ilntspia mwpjy; Ntz;Lk;.

Ú xU ePu;g;ghrdj;jpd;NghJ ghrdk; nra;ag;gl Ntz;ba fhy msitf; fzpf;f Ntz;Lk;.

Ú jd;dpaf;ff; fl;Lg;ghl;L Kiwikapd; %yk; NkNy Fwpg;gpl;l fhy ,ilntspfspy; ePu;f;fl;Lg;ghl;L

thy;T jpwf;fg;gl;L ePu;g;ghrd Neuk; Kbtile;jJk; jd;dpaf;fkhf thy;T kPz;Lk; %bf;

nfhs;sy;.

Ú kz;zpYs;s ePupd; msT (kz;zpd; <uypg;G) czupfshy; ,dq;fhzg;gl;L mjw;fikthf

jd;dpaf;fkhf thy;Tfs; jpwf;fTk; %lTk; nra;jy;.

^30 Gs;spfs;&

(iii) Ú re;ij Ma;T gw;wpa mwpKfk;

Ú ,yf;F Efu;Nthu; FO Foe;ijfsh> rpWtu;fsh ,isQu;fsh tsu;e;Njhu;fsh vd ,dq;fhz;tJld;

Mz; ngz; vdTk; tUkhdk;> nfhs;tdT rf;jp> Mfpad njhlu;ghd jfty;fisg; ngWtjw;F

eltbf;if vLj;jy;.

Ú jpl;lkpLk; Kiw> cw;gj;jpf;fika tpdhf;nfhj;jpy; tpdhf;fis ,Ltjw;F eltbf;ifnaLj;jy;.

,jd;NghJ ftdpf;f Ntz;ba tplaq;fs; tUkhW>

Ú gad;gLj;jg;gLk; %yg;nghUl;fspd; Rit> epwk;> Nghdiz> juk; Mfpad njhlu;ghd

jfty;fisg; ngWtjw;F Kidjy;.

Ú jahu; nra;ag;gLk; cw;gj;jpapd; Rit> epwk;> Nghriz> juk; Mfpad njhlu;ghd

jfty;fis ngWtjw;F Kd;tuy;.

Ú jahu; nra;ag;gLk; cw;gj;jpapd; tbtk;> jd;ik> epiyik Mfpad njhlu;ghd

jfty;fis ngWtjw;F Kd;tuy;.

Ú jahupf;fg;gl;l cw;gj;jpapidg; nghjp nra;Ak;NghJ nghjpapd; msT> tbtk;> epiw>

NkYiw> epiyik Nghd;w jfty;fs; Mfpatw;iwg; ngw KaYjy;.

Ú cw;gj;jpg; nghUs; nghUj;jkhdnjdpd; njupT nra;jy;.

Ú nfhs;tdT nra;a vjpu;ghu;f;Fk; msT> tpiy> ,lk;> re;ju;g;gk;> fhyk;

^30 Gs;spfs;&

- 05 -



6. (i) Ú gd;dhl; glF mwpKfk;

Ú ,lj;ij ,dq;fhz GPRS kw;Wk; nra;kjp topfhl;b Ú jiuAld; njhlu;Gnfhs;s nra;kjp kw;Wk; thndhyp miyfs; gad;gLj;jy;.

Ú flypd; Moj;ij mwpa vjpnuhypkhdp

Ú kPd;fs; mjpfk; rQ;rupf;Fk; ,lj;ij mwpa Nrhzhu; ,ae;jpuk;

Nkw;gb tplaq;fis tpsf;Ftjw;F ^30 Gs;spfs;&

(ii) re;jd vz;nza; eWkz vz;nzahFk;. ,t;thwhd vz;nza; tifiag; gpupj;njLg;gjw;F

ePuhtpapy; fha;r;rp tbj;jy; Kiw gad;gLj;jg;gLk;.

,jw;nfd re;jd kuj;jpd; itug;gFjp Ntwhf;fp vLf;fg;gl;L rpwpa Jz;Lfshf my;yJ khthf

khw;wg;gLk;.

cgfuz xOq;fikg;ig ruptu jahu;gLj;j Ntz;Lk;. (tupglk; mtrpakhdjhFk;.)

,q;F NtW ghj;jpunkhd;wpy; ePiur; #lhf;fp (nfhjpfyd;) ntspNaWk; ePuhtp re;jd kug; ghfq;fs;

nfhz;l ghj;jpuj;jpDs; Foha;topahf mDfg;gg;gLk;. me;j ePuhtpapd; %ykhf ntg;gkile;J

NkNy vOk;Gk; re;jd vz;nza; NtW Foha;nahd;wpd; %ykhf xLf;fpapDs; mDg;gp Fspur;nra;J

NtW ghj;j;jpunkhd;wpy; (gpupGdy; Nghd;w) Nrfupf;fg;gl;L re;jd vz;nzia Ntwhf;fp nghjp

nra;J fsQ;rpag;gLj;jg;gLk;.

^30 Gs;spfs;&

(iii) Ú epyf;fPo; ePu; kPs; epug;gy; cyu;tyaj;jpw;F tUlj;jpd; FWfpa fhyg;gFjpapy; kl;LNk kio fpilf;Fk;. kiof;fhyj;jpy; kio

ePiu ek;gp tptrhak; nra;ag;gl;l NghJk; tul;rpahd fhyq;fspy; epyf;fPo; ePNu gad;gLj;jg;gLk;.

cyu;tyaj;jpy; gUFjy; kw;Wk; Vida NjitfSf;F epyf;fPo; ePNu gad;gLj;jg;gLk;. ePz;l

tul;rpf;fhyk; Vw;gLk;NghJ epyf;fPo; ePu; FiwtilAk;. mjpfsT ePiu gk;GtjdhYk; epyf;fPo;

ePu;kl;lk; FiwtilAk;. cyu;fhyj;jpy; epyf;fPo; ePu;kl;lj;ij mjpfstpy; NgZtjw;F epyf;fPo;

kPs;epug;gy; Kf;fpakhdjhFk;.

^30 Gs;spfs;&

7. (i) Ú mWtilf;Fg; gpe;jpa njhopDl;gk; mwpKfk;

nfhz;L nry;yypd;NghJ ,og;Gfs; Vw;glf;$ba re;ju;g;gq;fs;

1' gpioahd nghjpg; gad;ghL

2' msTf;fjpfkhfg; nghjpaply;.

3' nfhz;L nry;yy; Clfj;jpd; uau;fs; rupahfg; guhkupf;fg;glhik.

4' uau;fspd; tsp mKf;fk; rupahf Ngzg;glhik.

5' tPjpfspd; FiwghLfs;

6' fhw;Nwhl;lk; cs;sthW nghjpaply; ^30 Gs;spfs;&

(ii) czthf cl;nfhs;s tFf;fg;gLk; rupahd jir> nfhOg;G tpfpjk; nfhz;l ghjfkhd

Ez;zq;fpfisf; nfhz;buhj rpwe;j epiyapYs;s ,iwr;rp

^06 Gs;spfs;&

,iwr;rpapd; juj;ijr; Nrhjpf;Fk; ngsjpf Kiwfs;

1' ntg;gepiy

Fiwe;j ntg;gepiyapy; ,iwr;rpapd; juk; ghJfhf;fg;gLk;.

-1 - -4 °C - Ez;zq;fpfspd; njhopw;ghL FiwAk;.

-18 - -30 °C - Ez;zq;fpfspd; njhopw;ghL jilg;gLk;.

mjpf ntg;gepiyapy; ,iwr;rpapd; juk; FiwAk; ntg;gkhdpiag; gad;gLj;jp

ntg;gepiyia mstplyhk;.

2' <ug;gjd;

rhuPug;gjd; mjpfupf;Fk;NghJ Ez;zq;fpfspd; njhopw;ghL mjpfkhFk;. ,jdhy;

,iwr;rpapd; juk; FiwAk;. <u cyu;Fkpo; ntg;gkhdp %yk; <ug;gjid mstplyhk;.

- 06 -



3' ePupd; nraw;wpwd;

,iwr;rpapy; cs;s RahjPd ePu; mjpfupf;Fkhapd; juk; FiwAk;. ePuOj;jj;ij

mstplyhk;.

4' epwk;> epiwaikg;G Mfpatw;iwr; Nrhjpg;gjd; %yk; juj;ij mstplyhk;.

^08 Gs;spfs; tPjk; 3 tplaq;fSf;F 24 Gs;spfs;&

(iii) Ú Rw;wly; Rw;Wyhf; ifj;njhopy; gw;wpa mwpKfk;. ^06 Gs;spfs;&

Ú nghUshjhu mD$yq;fs;

1' Rw;Wyhj;Jiw rhu;e;j gpuNjr kf;fs; gy;NtW topfspy; tUkhdkPl;ly;.

2' mur epWtdq;fspd; tUkhdk; mjpfupj;jy;.

cjhuzk; : mDkjpr; rPl;L tpw;gid

3' gpuNjr cw;gj;jpg;nghUl;fs; tpw;gid nra;ag;gly;.

4' Rw;Wyhg; gazpfSf;F topfhl;ly;.

^2 tplaq;fSf;F 3 Gs;spfs; tPjk; 06 Gs;spfs;&

Ú r%f fyhrhu mD$yq;fs;

1' kf;fsJ fyhrhuk; gw;wpa tpopg;Gzu;T Vw;gly;. ,jpypUe;J ghjpg;Gfisf; Fiwg;gjw;fhd

topfhl;ly;fisg; ngWjy;.

2' #oiyg; guhkupf;fTk; ghJfhf;fTk; fyhrhug; gz;Gfs; cjtpahf mikjy;.

3' #oiy eag;gjd; %yk; #oiyg; ghJfhf;f Ntz;Lk; vDk; czu;T Vw;gly;.

4' ,aw;ifr; #oy; ghJfhf;fg;gl Ntz;Lk; vDk; czu;T Vw;gly;.

5' gy;NtW ehLfSf;F ,ilapy; njhlu;Gfs; cUthjy;.

6' gy;NtW njhopy;fisf; fw;gjw;F ,aYkhjy;.

7' gpuNjr tUkhdk; mjpfupj;J tWik ,y;yhJ Nghjy;.

8' r%f Vw;wj;jho;T Fiwtiljy;.

^4 tplaq;fSf;F 3 Gs;spfs; tPjk; 12 Gs;spfs;&

Ú Rw;whly; mD$yq;fs;

1' mofpaw; ngWkjp fpilj;jy;.

2' #ow;nwhFjpf;Fg; ghjpg;Gfis Vw;gLj;jhJ ,Uf;f kf;fs; Kidjy;.

3' khw;W tUkhd topfs; fpilg;gjdhy; ,aw;if tsq;fs; ghjpf;fg;gly;.

^,uz;L tplaq;fSf;F 3 Gs;spfs; tPjk; 06 Gs;spfs;&

8. (i) Ú nraw;if jhtutsu;g;G gw;wpa mwpKfk;

capupg;gy;tifikg; ghJfhg;G %ykhf ehl;Lf;Fupa mupjhd mq;fpapdq;fisg; ghJfhf;f KbtJld;

nghUshjhu mD$yq;fisAk; ngw KbAk;. nghUshjhu mD$yk; kw;Wk; gpw mD$yq;fisAk;

ngWtjw;fhf kf;fshy; tsu;f;fg;gLk; fhLfNs nraw;iff; fhL tsu;g;G vdg;gLk;.

tdtsu;g;G %ykhf kdpjDf;Fj; Njitahd mupkuq;fs; fpilg;gJld; ,jw;nfd ,aw;if

tsq;fis mopg;gJk; epWj;jg;gLk;.

nraw;if tdtsu;g;G %ykhf %ypifg; gapu;fs; Nghd;w td cw;gj;jpg; nghUl;fs; mjpfupf;f

tha;g;Gs;sjhy; ,jw;nfd ,aw;iff; fhLfs; gad;gLj;jg;gLtJ FiwthFk;.

tdtsu;g;G %ykhf kl;fhg;G rpwg;ghf eilngWtjdhy; ePu;tl;lk; kw;Wk; kl;fhg;G Mfpad

rpwg;ghf eilngWk;. ,jd;%ykhf ,aw;if tdq;fspy; cs;s ghjpf;fg;glj;jf;f mq;fpapdq;fs;

ghJfhf;fg;gLk;.

^30 Gs;spfs;&

- 07 -



(ii) Ú myq;fhu ePu;j;jhtuq;fs; gw;wpa mwpKfk;

• ,ioatsu;g;G %yk; ehw;Wf;fis mjpfstpy; ngwy;.

• cupa grisf; fyitia cupa fhyj;jpy; ,ly;.

• gRik ,y;yj;jpDs; MSif epge;jidfspd; fPo; gapu;nra;jy;.

• nra;if gz;zg;gLk; jhtuq;fSf;F cupa pH, EC Mfpad ePupy; Ngzg;gly;.

• gRik ,y;yj;jpy; ePupd; CO2 ,d; nrwpT mjpfupj;jy;.

• kz;zpd;wpa gapu;r;ira;if Kiwfisf; iff;nfhs;sy;. ^30 Gs;spfs;&

(iii) Ú Neha; Kfhikj;Jt mwpKfk;

• Rj;jkhd eLifg;nghUl; gad;ghL.

• ePu;tbg;igr; rPuhf;fp Ntu; mOFjiyf; fl;Lg;gLj;jy;.

• epyj;jpd; <uypg;igf; Fiwf;f eltbf;ifnaLj;jy;.

• rpghu;R nra;ag;gl;l grisg; gad;ghl;bd; %yk; jplfhj;jpukhd gapu;r;ira;ifia NgZjy;.

• vjpu;g;gpdq;fisg; gapuply;.

• #upa ntg;g gpuNahfk; (Solarizasion) %yk; kz;zpYs;s Neha;tpis Ez;zq;fpfis

mopj;jy;.

Nkw;gb gapuhf;ftpay; Kiwfis tptupj;jy;. ^30 Gs;spfs;&

9. (i) 1/3 ghu; cwpQ;ry; mKf;fk; vdg;gLtJ taw; nfhs;ssthFk;. MfNt> taw;nfhs;sstpy; epiwkhd

ePupd; msT (FCW) 28% MFk;. 15 ghu; cwpQ;ry; mKf;fk; vdg;gLtJ epue;ju thlw;FzfkhFk;.

MfNt> epue;ju thlw;Fzfj;jpy; epiwkhd ePupd; msT (PWPW) 20% MFk;. kz;zpd; Njhw;wtlu;j;jp

(pb) 1.6gcm-3 ePupd; mlu;j;jp (pw) 1000 kg/m-3

(a) kz;zpy; fpilf;fj;jf;f nkhj;j ePupd; msT = (FCW - PWPW) ×pbpw

my;yJ

msT = (0.25 - 0.20) × 16001000

= (0.25 - 0.20) × 1.6

= 0.128

MfNt> ePu; cau; msTf;fika kz;zpd; 1m Moj;Jf;F ePu; 0.128 m (12.8 cm my;yJ

128 mm MFk;.) ^10 Gs;spfs;&

(b) Ntu;kz;ly Mok; (RD) 40cm. ePu;g;ghrdk; nra;aNtz;ba re;ju;g;gj;jpy; gw;whf;Fiw 40% MFk;.

Njwpa ePu;g;ghrdj; Njit = (FCW - PWPW) × × RD × Dpbpw

= 0.128 × 40 cm × 40100

my;yJ= 2.048 cm × 20.48 mm

^10 Gs;spfs;&

(c) ePupd; gpuNahf tpidj;jpwd; 60% MFk;.

nkhj;j ePu;g;ghrdj; Njit = Njwpa ePu;g;ghrdj; Njit

ePu;g; gpuNahf tpidj;jpwd;

2.0480.6

20.480.6

my;yJ=

my;yJ= 3.41 cm 34.1mm

^10 Gs;spfs;&

- 08 -



(ii) tzpfj;jpd; vjpu;fhy vjpu;ghu;g;Gfs; njhlu;ghd tptuq;fs; mlq;fpa nghUshjhu mgptpUj;jp>

tzpfj;jpwd; Mfpa midj;Jj; JiwfSk; kjpg;gPl;Lf;F cl;gLj;jg;gLk; gFg;gha;T uPjpahd

vOj;J%y MtzkhFk;.

1' Kjw; gf;fk;

tzpfj;jpd; ngau;> tzpfupd; ngau;> tpahghur; rpd;dk;> Kftup> njhiyNgrp ,yf;fk;>

gf;]; ,yf;fk;> kpd;dQ;ry; Kftup.

2' epiwNtw;Wr; RUf;fk;

xU gf;fj;jpy; kl;Lk; tzpfk; njhlu;ghf vOjg;gLk; RUf;fkhd Fwpg;ghFk;. ,q;F

jpl;lj;jpd; Kf;fpakhd jfty;fs; kl;LNk cs;slf;fg;gLk;.

3' tzpf tpguk;

tzpf mwpKfk;> tzpfj;jpd; jd;ik> cupik> ,yl;rpaf; $w;W> gzpf;$w;W>

Fwpf;Nfhs;fs;> Nehf;fq;fs; Mfpad tptupf;fg;gLk;.

rku;g;gpf;fg;gl;l gz;lj;jpd; jd;ik juk; Mfpad tptupf;fg;gLk;.

4' re;ijg; gFg;gha;T

re;ijapd; msT> re;ij Ma;T> jfty; ,yf;F> Efu;Nthu;> re;ijg;gLj;jy;> cgha

Kiwfs; Mfpad rku;g;gpf;fg;gLk;.

5' cw;gj;jpj; jpl;lk;

%yg;nghUl;fspd; Njit> ngw;Wf;nfhs;Sk; tpjk;> toq;Feu;> cw;gj;jpr; nra;Kiw

juk;> ,ae;jpuq;fs; kw;Wk; njhopDl;gg; gad;ghL.

6' re;ijg;gLj;jy; jpl;lk;

tpiy cj;jp> tpdpNahfpj;jy;> tpw;gid Nkk;ghL Mfpad njhlu;ghd jpl;lk;.

7' epjpj; jpl;lk;

%yjdj; Njit> kw;Wk; mjid ngWk; epjpfs;> epjpiaf; ifahsy; Mfpad

tpsf;fg;gLk;.

8' NtW jfty;fs;

Nghl;b> epr;rakw;w jd;ikfSf;F Kfq;nfhLj;jy; Nghd;w jfty;fs; rku;g;gpf;fg;gLk;.

^mwpKfj;jpw;F 05 Gs;spfs;&

^ngauplTk; tptupf;fTk; 05 Gs;spfs; tPjk; 25 Gs;spfs;&

(iii) capu;jpzpitf; nfhz;l my;yJ mjid %ykhff; nfhz;l jpz;k> jput> thA vupnghUl;fs;

capu; vupnghUl;fs; vdg;gLk;.

1' capu;Rtl;L vupnghUl;fSld; xg;gpLifapy; tspkhrhf;fpfs; ntsptplg;gLtJ FiwthFk;.

2' gr;irtPl;L thAf;fspd; ntspNaw;wk; FiwAk;.

3' Njrpa rf;jp tYg; ghJfhg;G.

4' vjpu;fhyj;jpy; #oy; Neak; kpf;f vupnghUs; toq;fy; cUthjy;.

5' epiyNgwhd vupnghUs; toq;fy;.

6' fdpa vz;nza;g; gad;ghL Fiwjy;.

7' capupjpzpT jfdkilAk;NghJ cUthFk; CO2 kPz;Lk; fhgd; tl;lj;jpy; Nru;tjdhy;

tspkz;ly CO2 mjpfupg;G Fiwjy;.

8' Gjpa Ntiytha;g;Gfs; cUthjy;.

^mwpKfj;jpw;F 05 Gs;spfs;&

^ngauplTk; tptupf;fTk; 05 Gs;spfs; tPjk; 25 Gs;spfs;&

- 09 -



10. (i) Ú ,lu;jtpu;g;G gbKiw xOq;F gw;wpa mwpKfk;

1. mfw;Wjy;

ngsjpfuPjpahd ,lu;fhy epiyik KOikahf mfw;wg;gLtjhy; njhopypy; <Lgl

,yFtjy;.

2. gpujpaPl;Lg; gad;ghL

mjpf epr;rakw;w jd;ik nfhz;ltw;Wf;Fg; gjpyhf Fiwthd epr;rakw;wjd;ik nfhz;ld

gad;gLj;jg;gLtjhy; ,yFthjy;.

3. ,ae;jpuq;fs;> njhopDl;gKiwfs; gad;gLj;jg;gly;

,jd;%ykhf ,lu;> njhopyhsu; Mfpatw;Wf;fpilapy; ,lUf;fhd jil Vw;gLtjdhy; gakpd;wp

Ntiy nra;a Kbjy;.

4. epu;thf Kiwapaiyg; gad;gLj;jy;

nghWg;Gf;fisg; gfpu;e;jspj;jy;> Mgj;J vr;rupf;ifg; gyiffisj; njhq;ftply; Mfpad

fhuzkhf njhopy; ,yFthjy;.

5. jdpg;gl;l ghJfhg;G cilia mzpe;jpUj;jy;

,jd;%ykhfg; gakpd;wp Ntiyfspy; <Lgl KbAk;.

^30 Gs;spfs;&

(ii) MSif epge;jidfspd; fPo; gapu;r;nra;if Nkw;nfhs;sg;gLk;NghJ Njitf;Nfw;g ntg;gepiy>

xsp> <ug;gjd;> fhw;W Mfpa tspf;Fupa #ow;fhuzpfs; xd;iw my;yJ gytw;iwf; fl;Lg;gLj;j

gd;gLj;jLk;. fl;likg;Gfs; MSiff; fl;likg;Gfs; vdg;gLk;. ^05 Gs;spfs;&

MSifr; #oiy Vw;gLj;Jtjw;fhd cj;jpfs; :

1' ,aw;ifahd fhw;W}l;ly; %yk; Fspu;j;Jjy;> fl;likg;gpDs; Njq;fpAs;s #lhd tspia

mfw;Wtjw;F

2' tspia cs;Ns mDg;g> ntspNa mDg;gj; Njitahd kl;lq;fspy; tprpwpfisg;

nghUj;Jjy;.

3' ePu;j;Jspfis Mtpahfr;nra;J Fspu;j;Jjy;. (fan fed)

4' MtpAapu;g;G %yk; Fspu;j;Jjy; (fog cooling)

5' IR fjpu;fisj; njwptilar; nra;af;$ba tpNrl nghypj;jpd; tiffs; gad;gLj;Jjy;.

6' Top vent Kiwapy; $iu cr;rpfisj; jahu; nra;jy;.

7' tiyapdhy; mikf;fg;gl;l ,y;yq;fspy; epoy; tiyfs; %yk; xspia fl;Lg;gLj;jy;.

^05 tplaq;fSf;F 5 Gs;sp tPjk; 25 Gs;spfs;&

- 10 -



(iii) G+q;fh myq;fupg;gpy; rkepiy vdg;gLtJ G+q;fhtpy; cs;s fw;gidr; rkr;rPu;mr;Rf;F ,uz;L

gf;fq;fSk; G+q;fhf; $Wfis epUkhdpj;jy;.

1' rkr;rPu; rkepiy

^a& G+q;fhtpd; rkr;rPu; Nfhl;Lf;F ,uz;L gf;fq;fspYKs;s vy;yhf; $WfspypdJk; tbtk;>

,ioaikg;G> msT> vz;zpf;if Mfpad rkkhf mikAk; tz;zk; nkd; $Wfis

,iaghf;fy;.

^b& mtjhdpg;Nghu; ,uz;L gf;fq;fSk; rkkhfg; ghu;itiar; nrYj;Jtu;.

2' rkr;rPupy;yh rkepiy

^a& fw;gidf; Nfhl;Lf;F ,uz;L gf;fq;fspYKs;s ,ay;Gfs; rkkw;wjhf ,Uf;Fk;.

^b& mtjhdpg;Nghu; ,uz;L gf;fq;fspYk; ghu;itiar; nrYj;jf; $ba tpjkhf xU

gf;fj;jpYs;s G+q;fhf; $W mjw;F NtWgl;l $wpd;%yk; rkepiyg;gLj;jg;gl;bUf;Fk;.

3' rkdpy; rkepiy

(a) mtjhdpg;Nghu; xUgf;fk; kl;Lk; ghu;itiar; nrYj;Jjy;.

^b& G+q;fh mikg;gpd;NghJ ,J Vw;glf;$ba tpjkhf Mf;fq;fs; xOq;FgLj;jg;gl

Ntz;Lk;.

^30 Gs;spfs;&

***

- 11 -

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