A. 50
B. 300
C. 500
D. 800
Recrystallisation temperature of steel is ______________________ °C? Read More »
Chemical Engineering Basics A. 0°C
B. 50°K
C. 0°R
D. None of these
Absolute zero pressure can be attained at a temperature of___________________? Read More »
Chemical Engineering Basics A. Tempering
B. Chromising
C. Aluminising
D. Alloying
Corrosion of metals cannot be prevented by its__________________? Read More »
Chemical Engineering Basics A. Strain rate is increased
B. Grain size is increased
C. Prior cold deformation is increased
D. Not affected by any of the above parameters
A. Ultraviolet rays
B. Infrared rays
C. Cosmic rays
D. X-rays
Which of the following rays has the least wavelength ? Read More »
Chemical Engineering Basics A. Molybdenum
B. Nickel
C. Manganese
D. Chromium
Which of the following is not a principal alloying element for the structural steel ? Read More »
Chemical Engineering Basics A. Vander Waal’s
B. Ionic
C. Metallic
D. Covalent
The following type of bonding is strongly directional in solids ? Read More »
Chemical Engineering Basics A. Composition
B. Temperature
C. Both A. & B.
D. Neither A. nor B.
Diffusion co-efficient of a metal in a solid solution depends upon its ? Read More »
Chemical Engineering Basics A. Face centred cubic (fcc)
B. Body centred cubic (bcc)
C. Orthorhombic
D. Cubic
Mild steel has _______________ crystal lattice structure? Read More »
Chemical Engineering Basics A. Casting
B. Cold working
C. Forging
D. Welding
Wrought iron is never shaped by__________________? Read More »
Chemical Engineering Basics