1941. Aqueous nitric acid is stored in
Steel drum
Stainless steel vessel
Cast iron vessel lined with acid-proof masonry brick
Cast iron vessel
✅ The correct answer is option B.
Chemical Engineering
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1942. Addition of __________ to the steel helps in increasing the residual magnetism in steel used for making magnets.
Chromium
Nickel
Tungsten
Cobalt
✅ The correct answer is option D.
1943. __________ is added in low carbon steel to raise its yield point.
Sulphur
Phosphorous
Silicon
Manganese
✅ The correct answer is option D.
1944. The high expansion metal normally used in the bimetallic thermometer is __________ temperature measurement.
Brass for low
Nickel alloys for high
Both A & B
Aluminium for all
✅ The correct answer is option C.
1945. Which of the following is not an alloy of tin?
White-bearing metal
Pewter type metal
Soft solder
German silver
✅ The correct answer is option D.
1946. Nickel made/clad equipments are suitable for handling
Ammonia (both aqueous & anhydrous)
Fruit juices, milk & its products and caustic soda solution
Nitric acid & hydrochloric acid (conc)
Sulphuric acid (conc)
✅ The correct answer is option B.
1947. Maximum consumption of copper is in
Utensil manufacture
Electrical industry
Industrial equipment manufacture
Small scale industries
✅ The correct answer is option B.
1948. Which of the following mechanical properties of a material is most structure insensitive?
Modulus of elasticity (young
Toughness
Percentage reduction of area
Tensile strength
✅ The correct answer is option A.
1949. Acid proof stoneware
Has very low strength
Cannot be heated
Is broken by small temperature changes
All of the above
✅ The correct answer is option D.
1950. __________ steel is widely used for the manufacture of motor car crankshafts.
Silicon
Nickel
Chrome
High speed
✅ The correct answer is option C.