201. The phenomenon of weld decay is found in case of
A. Gun metal
B. Brass
C. Stainless steel
D. Cast iron
✅ The correct answer is option D.
Chemical Engineering
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202. ‘Amortization’ in respect of financial obligation of a company means the
A. Liquidation of financial obligations on instalment basis
B. Commitment of financial obligation on priority
C. Liquidation of all the obsolete equipments of the company
D. Modernisation of the plant equipments
✅ The correct answer is option A.
203. __________ addition increases the depth of hardness of steel.
A. Chromium
B. Nickel
C. Tungsten
D. Vanadium
✅ The correct answer is option A.
204. Fatigue limit improvement by over stressing the metal by successively increasing the load is called coaxing. In fatigue failure, the material fails
A. Below the yield point
B. Above the yield point
C. Below the elastic limit
D. At the elastic limit
✅ The correct answer is option A.
205. Hot extrusion of aluminium is done in the temperature range of __________ °C.
A. 550-600
B. 450-500
C. 350-400
D. 250-300
✅ The correct answer is option C.
206. Springs are not made of
A. Phospher bronze
B. Nickel steel
C. Monel
D. Carbon steel (c ≤ 0.5%)
✅ The correct answer is option D.
207. Brittleness induced due to the presence of sulphur in steel can be reduced by adding
A. Manganese
B. Magnesium
C. Vanadium
D. Copper
✅ The correct answer is option A.
208. Cadmium in zinc leach liquor is removed by cementation using
A. Zinc
B. Iron
C. Nickel
D. Copper
✅ The correct answer is option A.
209. Wrought iron is not
A. Uctile & resistant to corrosion/rusting
B. Weldable easily
C. Having uniform strength in all directions
D. Having maximum tensile strength along the lines of slag distribution
✅ The correct answer is option C.
210. __________ is a non volatile film forming constituent of a paint.
A. Thinner
B. Dryer
C. Drying oil
D. None of these
✅ The correct answer is option C.