Heat Transfer In a backward feed multiple effect evaporator No pumps are required between successive effects None of these Feed flows from low pressure to high pressure Feed is introduced in the first effect No pumps are required between successive effects None of these Feed flows from low pressure to high pressure Feed is introduced in the first effect ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer The local surface conductance for laminar film condensation on vertical surface is (where, t = film thickness) ∝ t ∝ √t ∝ 1/t Independent of 't' ∝ t ∝ √t ∝ 1/t Independent of 't' ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Heat exchangers operating, when the asymptotic range is reached, Provide very large heat transfer co-efficient Results in making part of the heating surface inactive None of these Results in abruptly increased velocity Provide very large heat transfer co-efficient Results in making part of the heating surface inactive None of these Results in abruptly increased velocity ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Low thermal conductivity of heat insulating materials is due to its Dense structure High specific heat High proportion of air space None of these Dense structure High specific heat High proportion of air space None of these ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer At constant temperature, the thermal conductivities of gases __________ with rise in pressure. May increase or decrease; depends on the pressure Decrease Remain unchanged Increase May increase or decrease; depends on the pressure Decrease Remain unchanged Increase ANSWER DOWNLOAD EXAMIANS APP
Heat Transfer Presence of a non-condensing gas in a condensing vapour decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient None of the listed here decreases thermal resistance increases the rate of condensation is desirable to increase the film co-efficient None of the listed here ANSWER DOWNLOAD EXAMIANS APP
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