A. copper
B. brass
C. lead
D. silver
E. aluminium
Related Mcqs:
- 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 - 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 - Slow plastic defomiation of metals under a constant stress is known as________________?
A. creep
B. fatigue
C. endurance
D. plastic deformation
E. non-plastic deformation - Work study comprises following main techniques_________________?
A. method study and work measurement
B. method study and time study
C. time study and work measurement
D. method study and job evaluation
E. value analysis and work measurement - Which of the following engines can work on very lean mixture__________________?
A. S.I. engine
B. C.I. engine
C. two stroke engine
D. four stroke engine
E. all of the above - Maximum work is done in compressing air when the compression is_________________?
A. isothermal
B. adiabatic
C. polytropic
D. any one of the above
E. none of the above - The work done per unit mass of air in compression will’be least when n is equal to______________?
A. 1
B. 1.2 ,
C. 1.3
D. 1.4
E. 1.5 - Which of the following element results in presence of free graphite in C.I_________________?
A. carbon
B. sulphur
C. silicon
D. manganese
E. phosphorous - Cupola produces following material__________________?
A. cast iron
B. pig iron
C. wrought iron
D. malleable iron
E. white iron - Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio _____________________?
A. 50 : 20 : 20 : 10
B. 40 : 30 : 20 : 10
C. 50 : 20 : 10 : 20
D. 30 : 20 : 30 : 20
E. 50 : 10 : 20 : 20
