ultimate stress to breaking stress.
ultimate stress to working stress.
working stress to ultimate stress.
none of these.
✅ The correct answer is option B.
Chemical Engineering MCQs
For organic compounds, group contribution method can be used for the estimation of
A. Critical properties
B. Specific gravity
C. Specific volume
D. Thermal conductivity
✅ The correct answer is option A.
Degree of freedom of the system ice-water-vapour will be
A. 0
B. 1
C. 2
D. 3
✅ The correct answer is option A.
The value of Cp & Cv respectively for monoatomic gases in Kcal/kg Mole . °K are
A. 5 & 3
B. 3.987 & 1.987
C. 1.987 & 0.66
D. 0.66 & 1.987
✅ The correct answer is option A.
The effect of changing the evaporator temperature on COP as compared to that of changing the condenser temperature (in vapour compression refrigeration system) is
A. Less pronounced
B. More pronounced
C. Equal
D. Data insufficient, can’t be predicted
✅ The correct answer is option B.
In the equation, PVn = Constant, if the value of n = 0, then it represents a reversible __________ process.
A. Isobaric
B. Isothermal
C. Isentropic
D. Isometric
✅ The correct answer is option A.
Isotherm on an enthalpy-concentration diagram, for an ideal solution will be a
A. Straight line
B. Sine curve
C. Parabola
D. Hyperbola
✅ The correct answer is option A.
The co-efficient of performance (COP) of a refrigerating system, which is its index of performance, is defined as the ratio of useful refrigeration to the net work. The units of __________ and COP are the same.
A. Kinematic viscosity
B. Work
C. Temperature
D. None of these
✅ The correct answer is option D.
Third law of thermodynamics is concerned with the
A. Value of absolute entropy
B. Energy transfer
C. Direction of energy transfer
D. None of these
✅ The correct answer is option A.