Tensile strength of steel can be safely in-creased by________________?

Related Mcqs:

1. 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...

2. 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...

3. 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...

4. 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...

5. 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...

6. 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...

7. The following element can’t impart high strength at elevated temperature__________________?

   A. manganese B. magnesium C. nickel D. silicon E. none of the above...

8. Compressive strength of grey cast iron in tonnes/cm is of the order of___________________?

   A. 3- 5 B. 5-7 C. 7-10 D. 10-15 E. 15-22...

9. 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...

10. The system of lubrication used for motor cycles and scooters is by________________?

    A. forced lubrication system B. splash lubrication C. applying grease under pressure D. wet sump method E. mixing about 5% lub oil with petrol...