A. mild steel
B. cast iron
C. H.S.S.
D. high carbon
E. german silver
Related Mcqs:
- Materials after cold working are subjected to following process to relieve stresses__________________?
A. hot working
B. tempering
C. normalising
D. annealing
E. special heat treatment - Cold rolled steel sheets contain carbon of the following order___________________?
A. 0.1%
B. 0.2%
C. 0.4%
D. 0.6%
E. 0.8% - Railway rails are normally made of_______________?
A. mild steel
B. alloy steel
C. high carbon
D. tungsten steel
E. cast iron steel - Pure iron is the structure of_______________?
A. ferrite
B. pearlite
C. anstenite
D. ferrite and cementite
E. ferrite and pearlite - Delta iron occurs at temperature of_______________?
A. room temperature
B. above melting point
C. between 1400°C and 1539°C
D. between 910°C and 1400°C
E. none of the above - The number of electrons in 1 cm3 of metal would be of the order of_______________?
A. 1010
B. TO16
C. 1022
D. 1040
E. 1052 - 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 - The overall isothermal eiffciency of compressor is defined as the ratio of_______________?
A. isothermal h.p. to the BHP of motor
B. isothermal h.p. to adiabatic h.p.
C. power to drive compressor to isothermal h.p.
D. work to compress air isothermally to work for actual compression
E. isothermal work to ideal work - Free surface of a liquid tends to contract to the smallest possible area due to force of_______________?
A. surface tension
B. viscosity
C. friction
D. cohesion
E. adhesion - Hardness of steel depends on_________________?
A. amount of carbon it contains
B. the shape and distribution of the car-bides in iron
C. method of fabrication
D. contents of alloying elements
E. the quality of ore from which it is made
