A. Ethyl alcohol
B. Impurities
C. Methyl alcohol
D. Carbonic acid
Related Mcqs:
- One of the methods of purification of leach liquor is ion exchange, which involves_________________?
A. Exchange between two liquid phases
B. Exchange between a gaseous phase and a liquid phase
C. Exchange between a liquid phase and an organic resin phase
D. Exchange between a solid phase and a gas phase - Brittleness induced due to the presence of sulphur in steel can be reduced by adding____________________?
A. Manganese
B. Magnesium
C. Vanadium
D. Copper - The yield point phenomenon observed in annealed low carbon steel is due to the presence of the following element ?
A. Silicon
B. Carbon
C. Phosphorous
D. Chromium - Brittleness induced due to the presence of sulphur in steel can be reduced by adding______________?
A. Manganese
B. Magnesium
C. Vanadium
D. Copper - According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to _______________ times the yield stress ?
A. 0.5
B. 2
C. √2
D. √3/2 - Coating thickness in case of galvanising of steel sheet generally corresponds to the deposition of _______________ gms of zinc per m2 of steel strip ?
A. 5-10
B. 1000-1500
C. 120-500
D. 1500-3000 - _______________ rubber is generally used for making ‘O’ rings used for vacuum sealings?
A. Natural
B. Neoprene
C. Butadiene
D. Nitrile - Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?
A. Slip
B. Fracture
C. Winning
D. Dislocation - Chlorine acts as a bleaching agent only in the presence of ______________________?
A. Dry air
B. Pure oxygen
C. Moisture
D. Sunlight - Presence of nickel & chromium in steel does not raise its _________________?
A. Elastic limit
B. Machining properties
C. Ductility
D. Resilience
