A. mild steel
B. german silver
C. lead
D. cast iron
E. graphite
Related Mcqs:
- Annealing of white cast iron results in production of_________________?
A. malleable iron
B. nodular iron
C. spheroidal iron
D. grey iron
E. none of the above - Depth of hardness of steel is increased by addition of_________________?
A. nickel
B. chromium
C. tungsten
D. vanadium
E. ell of the above - Super conduction by metals is observed in the temperature range of_________________?
A. below 10°K
B. above 100°K
C. around 0°C
D. around 100°C
E. above 1000°C - Connecting rod is usually made of_________________?
A. aluminium
B. low carbon steel
C. medium carbon steel
D. high carbon steel
E. cast iron - Balls for ball bearings are made of_________________?
A. cast iron
B. mild steel
C. stainless steel
D. carbon-chrome steel
E. high carbon steel - Drop forging dies contain carbon of the order of_________________?
A. 0.1 to 0.2%
B. 0.25 to 0.5%
C. 0.6 to 0.7%
D. 0.7 to 0.9%
E. 1.0 to 1.2%. - Austenite rs a combination of_________________?
A. ferrite and cementite
B. cementite and gamma iron
C. ferrite and austenite
D. ferrite and iron graphite
E. pearlite and ferrite - The thermal efficiency of a diesel engine is of the order of_________________?
A. 92%
B. 68%
C. 52%
D. 34%
E. 25%. - Principle of similitude forms the basis of_________________?
A. comparing two identical equipments
B. designing models so that the result can be converted to prototypes
C. comparing similarity between design and actual equipment
D. hydraulic designs
E. performing acceptance tests - Duplex feed pumps are used in small steam boilers. These operate on the principle of_________________?
A. centrifugal pump
B. axial flow pump
C. gear pump
D. ejector pump
E. reciprocating pump
