Engineering, 04.07.2021 19:20 liyahbby16
1. Cooling superheated vapor at constant pressure to the saturation temperature gives
while heating subcooled liquid at constant pressure to the saturation temperature gives
respectively
a) saturated vapor, saturated liquid
b) saturated liquid, saturated vapor
c) mixture of saturated vapor and saturated liquid, mixture of saturated liquid and saturated
vapor
d)subcooled liquid , superheated vapor
Answers: 3
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Which of the following controllers anticipates the future from the slope of errors over time? a)-proportional b)-on/off c)-integral d)-derivative.
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Air flows over a heated plate àt a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
1. Cooling superheated vapor at constant pressure to the saturation temperature gives
while heating...
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