A. increase
B. decrease
C. remain same
D. first increase and then decrease
E. show unpredictable behaviour
Related Mcqs:
- 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 - The tensile strength of wrought iron is maximum _________________?
A. along the lines of slag distribution
B. perpendicular to lines of slag distribution
C. uniform in all directions
D. unpredictable
E. none of the above - Tensile strength of steel can be safely in-creased by________________?
A. adding carbon up to 2.8%
B. adding carbon up to 6.3%
C. adding carbon up to 0.83%
D. adding small quantities of copper
E. adding copper and carbon - 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 - 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 - Which one of the following metals would work-harden more quickly than the others__________________?
A. copper
B. brass
C. lead
D. silver
E. aluminium - The property of a fluid which enables it to resist tensile stress is known as___________________?
A. compressibility
B. surface tension
C. cohesion
D. adhesion
E. viscosity - Which of the following substance will have same percentage in both proximate and ultimate analysis___________________?
A. ash
B. volatile matter
C. moisture
D. hydrogen
E. none of the above - Ultimate analysis of fuel is determination of percentage of____________________?
A. carbon, hydrogen, nitrogen, sulphur, moisture
B. fixed carbon, ash, volatile matter, moisture
C. higher calorific value
B. lower calorific value
E. best analysis
