A. Tensile strength
B. Elastic limit
C. Proportional limit
D. Yield strength
✅ The correct answer is option C.
Basic Chemical Engineering MCQs
Streaklines, streamlines & pathlines are almost identical for __________ fluid flow.
A. Ideal
B. Uniform
C. Steady
D. None of these
✅ The correct answer is option C.
On decreasing the grain size of a polycrys-talline material, the property most likely to deteriorate is
A. Creep
B. Toughness
C. Tensile strength
D. Fatigue
✅ The correct answer is option B.
The pH value is the measure of hydrogen ion concentration in a solution. The term pH stands for the __________ in the solution.
A. Power of hydrogen ion concentration
B. Percentage of hydrogen ions
C. Presence of hydrogen ions
D. None of these
✅ The correct answer is option A.
__________ is not used as a material of construction in thermocouples.
A. Alumel
B. Rhodium
C. Constantan
D. Duralumin
✅ The correct answer is option D.
Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are
A. Cobalt, chromium & tungsten
B. Cobalt, chromium & nickel
C. Molybdenun, tungsten & chromium
D. Cobalt, zirconium & molybdenum
✅ The correct answer is option A.
Which of the following contributes maximum as main source of sulphur in the blast furnace charge ?
A. Sinter
B. Coke
C. Iron ore
D. Limestone
✅ The correct answer is option B.
Scaling occurs in boiler tubes due to the fact that, the solubility of Ca(OH)₂ __________ with increasing temperature.
A. Increases
B. Decreases
C. Shows inversion of solubility
D. None of these
✅ The correct answer is option A.
What happens, when SO₂ is passed through a solution of H₂S in water?
A. Precipitation of sulphur takes place
B. H₂SO₃ is formed
C. Oleum is formed
D. None of these
✅ The correct answer is option A.
Ageing of steel refers to the
A. Degradation of steel by corrosion
B. Failure of steel structure by overstress-ing
C. Return of sharp yield point in temper rolled low carbon sheet after a period of time
D. Decarburisation of steel by overheating
✅ The correct answer is option C.