Chemical Engineering MCQs

Page No. 96

The Carnot co-efficient of performance (COP) of a domestic air conditioner compared to a household refrigerator is__________________?


a Less


b More


cSame


dDependent on climatic conditions


View Answer Less

Presence of 0.3 to 0.5% arsenic in copper increases its____________________?


aDuctility


bMalleability


cTenacity & hardness


dElectrical conductivity


View Answer Tenacity & hardness

For a spontaneous process, free energy__________________?


aIs zero


b Increases


cDecreases whereas the entropy increases


dAnd entropy both decrease



Acetylene gas holder is made of__________________?


aCopper


bCast iron


cSteel


dMonel metal


View Answer Steel

For multi-component multiple phases to be in equilibrium at the same pressure and temperature, the _______________ of each component must be same in all phases?


a Chemical potential


bFugacity


cBoth A. and B


d Neither A. nor B


View Answer Both A. and B

Babbitt metals used for making bearings are _________________?


aTin or lead based alloys


bShort of antifrictional properties


cHaving homogenous microstructure


dYellow metals



Carbon percentage is the same in cast iron and_________________?


aWrought iron


bPig iron


cMild steel


dHigh silicon (14%) iron


View Answer Pig iron

The chemical potential of any constituent of an ideal solution depends on the ______________ of the solution?


aTemperature


bPressure


cComposition


dAll (A), B. and (C)


View Answer All (A), B. and (C)

Nickel (56%) and molybdenum (17%) alloys are called________________?


aMonel


bHastelloy C


cInconel


dBronzes


View Answer Hastelloy C

In the equation, PVn = constant, if the value of n is in between 1 and y (i.e. Cp/Cv), then it represents a reversible ____________ process?


a Isometric


bPolytropic


c Isentropic


dIsobaric


View Answer Polytropic

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