Chemical Engineering MCQs

Page No. 199

The terminal velocity of a particle moving through a fluid varies as dp n. What is the value of n’ for Newton’s law regime ?


a0.5


b1


c1.5


d3


View Answer 0.5

The inherent characteristic of an equal percentage valve relating flow rate ‘q’ with valve stem movement ‘x’ are described by the equation_________________?


adq/dx = K


bdq/dx = K.q


cdq/dx = K/q


ddq/dx = Kq2


View Answer dq/dx = K

A gas mixture contains 6 moles of H2 and 2 moles of N2. If the total pressure of the gaseous mixture is 4 kgf/cm2; then the partial pressure of N2 in the mixture will be _____________ kgf/cm2 ?


a1


b2


c4


d 8


View Answer 1

Co-efficient of velocity is ___________________ the coefficient of discharge?


aLess than


bMore than


cEqual to


dNot related to


View Answer More than

Hess’s law of constant heat summation is based on conservation of mass. It deals with ___________________?


aEquilibrium constant


bReaction rate


cChanges in heat of reaction


dNone of these



In a neutral solution _________________?


aH+ ions are absent


bOH- ions are absent


cBoth H+ and OH- ions are present in very small but equal concentration


d None of these



A Rotameter through which air at room temperature and atmospheric pressure is flowing gives a certain reading for a flow rate of 100 cc/sec. If helium (molecular weight 4) is used and Rotameter shows the same reading, the flow rate (cc/sec) is__________________?


a26


b42


c269


d325


View Answer 269

The terminal velocity of a small sphere settling in a viscous fluid varies as the___________________?


aFirst power of its diameter


bInverse of the fluid viscosity


cInverse square of the diameter


dSquare of the difference in specific weights of solid & fluid



Number of gm moles of solute dissolved in one liter of a solution is called its____________________?


aEquivalent weight


bMolarity


cMolality


dNormality


View Answer Molarity

For pipes that must be broken at intervals for maintenance, the connector used should be a/an__________________?


aUnion


bTee


cReducer


dElbow


View Answer Union

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