High carbon steel contains more than _____________ percent carbon?
A. 0.5
B. 2.2
C. 2.5
D. 2.8
Materials and Construction
Which of the following has no effect on the carbide forming tendency in steels ?
Which of the following has no effect on the carbide forming tendency in steels ?
A. Molybdenum
B. Phosphorus
C. Chromium
D. Vanadium
Mild steel storage vessels are suitable for the storage of___________________?
Mild steel storage vessels are suitable for the storage of___________________?
A. Anhydrous ammonia
B. Fatty acids
C. Hydrochloric acid (95%)
D. Sulphuric acid (25%)
The increase in hardness of metal due to its cold working is termed as the _______________ hardening?
The increase in hardness of metal due to its cold working is termed as the _______________ hardening?
A. Work
B. Age
C. Induction
D. Flame
Which one has the maximum tensile strength out of the following ?
Which one has the maximum tensile strength out of the following ?
A. Nodular cast iron
B. Pig iron
C. White cast iron
D. Grey cast iron
Wrought iron is a suitable material of construction for handling _____________ solutions?
Wrought iron is a suitable material of construction for handling _____________ solutions?
A. Dilute acidic
B. Concentrated acidic
C. Alkalis & alkaline
D. None of these
Inconel is an alloy of_________________?
Inconel is an alloy of_________________?
A. Tin, zinc and nickel
B. Iron, nickel and chromium
C. Copper and nickel
D. Copper and tin
Mixing vessel used for the chlorination of methane to produce methyl chloride is made of___________________?
Mixing vessel used for the chlorination of methane to produce methyl chloride is made of___________________?
A. Copper
B. Cast iron
C. Aluminium
D. High carbon steel
The high expansion metal normally used in the bimetallic thermometer is _______________ temperature measurement?
The high expansion metal normally used in the bimetallic thermometer is _______________ temperature measurement?
A. Brass for low
B. Nickel alloys for high
C. Both A. & B.
D. Aluminium for all
High speed cutting tool steels contain about _______________ percent of tungsten?
High speed cutting tool steels contain about _______________ percent of tungsten?
A. 6-8
B. 18-20
C. 30-35
D. 50-55