Heat Transfer The purpose of providing expansion bellows in the shell of tubular exchanger is to Facilitate increase of shell length, if needed Increase the heating load Account for the uneven expansion of shell and tube bundles Impart structural strength Facilitate increase of shell length, if needed Increase the heating load Account for the uneven expansion of shell and tube bundles Impart structural strength ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer With the increase of temperature, the Col-burn jH factor Increases May increase or decrease ; depending on temperature Decreases Remains unchanged Increases May increase or decrease ; depending on temperature Decreases Remains unchanged ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Temperature profile in steady state heat transfer is parabolic Linear none of the listed here hyperbolic parabolic Linear none of the listed here hyperbolic ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) ∝ t ∝ √t Independent of 't' ∝ 1/t ∝ t ∝ √t Independent of 't' ∝ 1/t ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The average heat transfer co-efficient over the entire length of the plate (ha) and the local heat transfer co-efficient (hL), in case of heat transfer over a flat plate in lminar zone is related as Ha= 5hL Ha = 2hL Ha = hL Ha = 0.8hL Ha= 5hL Ha = 2hL Ha = hL Ha = 0.8hL ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The Nusselt number for fully developed (both thermally and hydrodynamically) laminar flow through a circular pipe whose surface temperature remains constant is 1.66 88.66 Dependent on NRe only 3.66 1.66 88.66 Dependent on NRe only 3.66 ANSWER DOWNLOAD EXAMIANS APP
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