Brine solution is stored/treated in _______________ lined vessels/pipes?
A. Rubber
B. Lead
C. Glass
D. Nickel
Materials and Construction
Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about_______________?
Compressive strength of wood is usually more along the grains. The tenile strength of wood as compared to that of steel is about_______________?
A. Half
B. One third
C. One fifth
D. One twelfth
Which of the following has a very high carbide forming tendency in steels ?
Which of the following has a very high carbide forming tendency in steels ?
A. Silicon
B. Chromium
C. Nickel
D. Vanadium
Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines ?
Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines ?
A. Silicon steel
B. Chromium steel
C. Molybdenum steel
D. None of these
Silicon percentage in iron castings to have maximum hardness should be about__________________?
Silicon percentage in iron castings to have maximum hardness should be about__________________?
A. 0.3
B. 0.5
C. 0.8
D. 2.5
The electrical conductivity of a ______________ decreases with rise in temperature?
The electrical conductivity of a ______________ decreases with rise in temperature?
A. Metal/alloy
B. Semi-conductor
C. Dielectric
D. None of these
18/8 stainless steel means, that it contains__________________?
18/8 stainless steel means, that it contains__________________?
A. 18% chromium and 8% nickel
B. 18% chromium and 8% molybdenum
C. 18% nickel and 8% chromium
D. 18% molybdenum and 8% chromium
Aqueous nitric acid is stored in ______________ vessel?
Aqueous nitric acid is stored in ______________ vessel?
A. Plain carbon steel
B. Stainless steel
C. Cast iron
D. Thermosetting plastic material
High speed steel should have high___________________?
High speed steel should have high___________________?
A. Toughness
B. Wear resistance
C. Hardenability
D. Both B. & C.
Anodic material used for the cathodic protection of underground buried steel pipeline is_________________?
Anodic material used for the cathodic protection of underground buried steel pipeline is_________________?
A. Nickel or copper
B. Zinc or magnesium
C. Bronze
D. Brass