Question $128$ maTRS$)($d$)($e$)($a$($b$)($c$)$If the temperature of $250\backslash$deg F is to be converted to Kelvin $($K$)$ unit, show the conversionof it$.$Several temperature$-$measurement devices may be clas sified as mechanicallyoperative $($operating on the basis of a change in mechanical dimension with avapour expansionchange in temperature$).$ These include solid, liquid andtemperature measuring devices. Explain briefly on each them.For each of the following temperature measuring devices:$(1)$ Infrared pyrometer$()$ Optic pyrometerexplain briefly on the following aspects:$()$ working principles$($i$)$ advantagesWhat is the principle of operation of thermocouple?Table $8\mathrm{.}3$aTenupcralture,$-150$An chromel$-$constantan thermocouple is connected to a potentiomneter whoseterminals are at $50\backslash$deg C$.$ The potentiometer reading is $4\mathrm{.}01$ mV$.$ What is thetemperature of the thermocouple junction?$-100-50-25755020030010050608001200$I$5001750$Thermal emf in absolule millivols for commonly used thermocouple combinali$$ns$,$ according b ITS$(90)($Reference juncion of $0$ C$)$Constanan $($T$)-4\mathrm{.}648-3\mathrm{.}379-1819-0\mathrm{.}91020363\mathrm{.}1324\mathrm{.}2796\mathrm{.}7049\mathrm{.}23814\mathrm{.}86220\mathrm{.}872$Chonel v$.$Constantan $($E$)-1\mathrm{.}279-5237-2\mathrm{.}787-14326\mathrm{.}3199\mathrm{.}7891342121\mathrm{.}03628\mathrm{.}91637\mathrm{.}00545\mathrm{.}0936\mathrm{.}01776\mathrm{.}373$Iroa vsConstantan $)-6500-4633-2431-1239127258$:$3\mathrm{.}911\mathrm{.}269$I$071632721\mathrm{.}8182739333\mathrm{.}10245\mathrm{.}49457\mathrm{.}95369553$Chromcl vAumel $($A$-4913-3\mathrm{.}334-1\mathrm{.}889-0\mathrm{.}968$L$\mathrm{.}0002\mathrm{.}0233\mathrm{.}0594\mathrm{.}0966\mathrm{.}1385\mathrm{.}1392064424\mathrm{.}90633\mathrm{.}27541\mathrm{.}27648\mathrm{.}838$Platinu$-10\%$Rhodiunn $($S$)-0,236-0\mathrm{.}1270\mathrm{.}1430\mathrm{.}2990\mathrm{.}4670\mathrm{.}646$L$\mathrm{.}0291\mathrm{.}4412\mathrm{.}3233\mathrm{.}25942135\mathrm{.}239$IL$\mathrm{.}9511558218\mathrm{.}503$Nlcosil vNisil $($N$-1530-1222-0\mathrm{.}698-03680402$D$83629778528263\mathrm{.}9436488919|6031437020\mathrm{.}094(4$ marks$)2604632\mathrm{.}144(9$ marks$)(8$ marks$)(3$ marks$)(4$ marks$)$