A. Cast iron
B. Steel
C. Aluminium
D. Either B. & C.
Acetaldehyde is shipped in ____________ drums? Read More »
Materials and Construction A. Cast iron
B. Mild steel
C. High silicon iron (14% Si)
D. Tin lined with refractory bricks
Rotary driers are generally made of_______________? Read More »
Materials and Construction A. Fluctuating
B. Tensile
C. Compressive
D. Torsion
Fatigue failure of a material may occur, when it is subjected to _____________ stress? Read More »
Materials and Construction A. Silicon
B. Phosphorus
C. Sulphur
D. None of these
A. Diamond
B. Graphite
C. Carborundum
D. Pumice stone
Hardest materials so far found is_________________? Read More »
Materials and Construction A. Increases its melting point
B. Does not affect its melting point
C. Decreases its melting point
D. Makes it malleable
The presence of impurities in iron_________________? Read More »
Materials and Construction A. Are prone to temper brittleness
B. Are used for automobile parts like gears, axle, shaft, bearings etc.
C. Have very poor fatigue resistance
D. Do not contain nickel or chromium or both
Molybdenum steels containing 0.15 to 0.40% molybdenum___________________? Read More »
Materials and Construction A. Cast iron
B. Steel
C. Ferroalloy
D. None of these
Carbon is present in the uncombined (graphitic) form in case of__________________? Read More »
Materials and Construction A. Hastelloy
B. German silver
C. Inconel
D. Solder
Nickel and molybdenum are the basic constituents of___________________? Read More »
Materials and Construction A. Iron & copper
B. Copper & aluminium
C. Lead & tin
D. None of these
Constantan used in thermocouples is an alloy of___________________? Read More »
Materials and Construction