Quiz-1 (Unsolved)

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College Algebra & Trignometry

(1st Edition)

Book - Edition 1st Edition

Author(s) - Miller, Gerken

ISBN - 9780078035623

Publisher - McGraw Hill

Subject - Math

Quiz Tittle Quiz Translation View
Quiz-1 (Unsolved)The temperature distribution across a flat wall of thickness 1m is given by: T=a+bx+cx2 where T is in Celcius, a=100 oC, b=100 oC/m, and c=10 oC/m2. If the cross-section area is 12 m2 and thermal conductivity is 48 W/m: Calculate the rate of heat transfer in Watt at x=1m. ,The temperature distribution across a flat wall of thickness 1m is given by: T=a+bx+cx2 where T is in Celcius, a=100 oC, b=100 oC/m, and c=10 oC/m2. If the cross-section area is [A] m2 and thermal conductivity is [k] W/m:At what point (x=?) the rate of heat transfer will be maximum and in which direction? at x=0, from x=1 towards x=0 at x=0, from x=0 towards x=1 at x=1, from x=1 towards x=0. at x=1, from x=0 towards x=1, In the above figure, if the thickness (1m) and the cross section areas (1m2) of all the three slabs were the same, how will the resistances RA, RB and RC relate if the thermal conductivities for the three slabs are: kA>kC>kB and respectively for A, B and C. RA < RC < RB RA > RC > RB RA = RC = RB,The temperature distribution across a flat wall of thickness 1m is given by: T=a+bx+cx2 where T is in Celcius, a=100 oC, b=100 oC/m, and c=10 oC/m2. If the cross section area is 19 m2 and thermal conductivity is 40 W/m: Calculate the rate of heat transfer in Watt at x=0.,The temperature profile across a composite slab is given in the above diagram. Which slab has the lowest thermal conductivity?