A. manganese
B. magnesium
C. nickel
D. silicon
E. none of the above
Related Mcqs:
- Dynamic viscosity of most of the liquids with rise in temperature__________________?
A. increases
B. decreases
A. remains unaffected
D. unpredictable
E. none of the above - Which of the following elements does not impart hardness to steel__________________?
A. copper
B. chromium
C. nickel
D. silicon
E. none of the above - The ultimate tensile strength and yield strength of most of the metals, when temperature falls from 0 to l00°C will _________________?
A. increase
B. decrease
C. remain same
D. first increase and then decrease
E. show unpredictable behaviour - The loss of strength in compression with simultaneous gain in strength in tension due to overloading is known as________________?
A. hysteresis
B. creep
C. visco elasticity
D. Boeschinger effect
E. inelasticity - The ultimate tensile strength of low carbon steel by working at a high strain rate will_________________?
A. decrease
B. increase
C. remain constant
D. first increase and then decrease
E. first decrease and then increase - Which of the following has highest specific strength of all structural materials__________________?
A. magnesium alloys
B. titanium alloys
C. chromium alloys
D. magnetic steel alloys
E. none of the above - Which of the following element results in presence of free graphite in C.I_________________?
A. carbon
B. sulphur
C. silicon
D. manganese
E. phosphorous - Elinvar, an alloy used in precision instruments, hair springs for watches, etc. contains the following element as principal alloying element__________________?
A. iron
B. copper
C. aluminium
D. zinc
E. nickel - Isothermal compression efficiency, even when running at high speed, can be approached by using A. multi-stage compression B. cold water spray C. both A. and B. above D. fully insulating the cylinder E. high stroke_________________?
Isothermal compression efficiency, even when running at high speed, can be approached by using
A. multi-stage compression
B. cold water spray
C. both A. and B. above
D. fully insulating the cylinder
E. high stroke - Surveying tapes are made of a material having low coefficient of expansion and enough strength. The alloy used is__________________?
A. silver metal
B. duralumin
C. Hastelloy
D. monel metal
E. invar
