A. Carbon
B. Iron
C. Phosphorous
D. None of these
Related Mcqs:
- Creep is not exhibited at low temperature by _____________________?
A. Rubber
B. Acrylics
C. Lead
D. Plastics - Pick out the wrong statement?
A. The toughness of a material decreases, when it is heated
B. Crane hooks are normally made of wrought iron
C. Cold working of a metal decreases its fatigue strength
D. The temperature at which new grains are formed in a metal is known as the recrystallisation
temperature - High speed cutting tool steels contain about _______________ percent of tungsten?
A. 6-8
B. 18-20
C. 30-35
D. 50-55 - How many atoms are there per unit cell in a body centred cubic lattice system ?
A. 6
B. 5
C. 3
D. 2 - 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 - Carbon is present in the combined form (carbide) in case of______________________?
A. Pig iron
B. Steel
C. Ferroalloys
D. All A., B. & C. - Carbon tetrachloride can be stored in a storage vessel made of________________?
A. High silicon iron (14% Si)
B. Tin
C. Stainless steel
D. All A., B. and C. - Hydrocyanic acid is not shipped in______________?
A. Cast iron vessels
B. Steel cylinders
C. Aluminium containers
D. Monel drums - Wrought iron is ____________________?
A. High carbon iron
B. Highly resistance to acid corrosion
C. Malleable & ductile; and hence is used for chain links, hooks & couplings
D. An alloy of iron, chromium & carbon - 18-4-1 high speed steel contains 18%, 4% and 1% respectively of____________________?
A. Tungsten, vanadium and chromium
B. Tungsten, chromium and vanadium
C. Vanadium, chromium and tungsten
D. Chromium, tungsten and vanadium
