A. Magnetic succeptibility
B. Magnetic moment
C. Permeability of free space
D. Flux density
✅ The correct answer is option C.
Chemical Engineering MCQs
Maximum hardenability of steel depends upon its
A. Chemical composition
B. Carbon content
C. Grain size
D. Alloying elements content
✅ The correct answer is option D.
The single most imortant requirement for a turbine blade material is
A. Damping
B. Resilience
C. Creep resistaned
D. DBTT
✅ The correct answer is option C.
Gross national product (GNP) means the total value of __________ in a country.
A. Goods produced
B. Gold reserve
C. Earning of the citizens
D. Taxes paid
✅ The correct answer is option A.
Dephosphorisation of molten pig iron is favoured by
A. Oxidising and basic slag
B. Reducing and basic slag
C. High activity co-efficient of phosphorous in metal
D. Oxidising and neutral slag
✅ The correct answer is option B.
Starting friction is low in case of the __________ lubrication.
A. Boundary
B. Hydrodynamic
C. Hydrostatic
D. Mixed/semi-fluid
✅ The correct answer is option C.
In 18-4-1 high speed steel, 18, 4 & 1 respectively denote the percentage of
A. Chromium, tungsten & vanadium
B. Tungsten, chromium & vanadium
C. Tungsten, vanadium & chromium
D. Tungsten, chromium & molybdenum
✅ The correct answer is option B.
Grinding wheel made of silicon carbide is most suitable for grinding materials of low tensile strength (e.g; tough bronze). Grinding is a __________ operation.
A. Turning
B. Dressing
C. Forming
D. Surface finishing
✅ The correct answer is option D.
Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog?
A. Nitrogen oxides
B. Hydrocarbons
C. Both A & B
D. Carbon monoxide
✅ The correct answer is option C.
Which of the following is a weak acid?
A. HF
B. HCl
C. HI
D. HBr
✅ The correct answer is option A.