__________ is used for examining the macro-structure of a material. Metallurgical microscope X-rays Visual inspection by naked eye Optical microscope TRUE ANSWER : ? YOUR ANSWER : ?
The behaviour of visco-elastic material is time dependent. This behaviour is commo in __________ materials. Crystalline Rubberry Non-crystalline solid Non-crystalline organic polymeric TRUE ANSWER : ? YOUR ANSWER : ?
Hardest material so far found is Graphite Pumice stone Carborundum Diamond TRUE ANSWER : ? YOUR ANSWER : ?
The loss of strength in compression which occurs, when there is a gain of strength in tension due to over loading is called Bauschinger effect Hysterisis Hooke's effect Relaxation TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is not shipped in mild steel containers? Formic acid Ethyl alcohol Ammonia Acetone TRUE ANSWER : ? YOUR ANSWER : ?
The electrical conductivity of a __________ decreases with rise in temperature. Semi-conductor None of these Metal/alloy Dielectric TRUE ANSWER : ? YOUR ANSWER : ?
Slow plastic deformation of metals under a constant stress is termed as __________ failure. Creep Fatigue Endurance None of these TRUE ANSWER : ? YOUR ANSWER : ?
Rubber lined vessels are corroded by the action of Sulphuric acid (95%) All of these Chloroform Aqua regia TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines? Silicon steel None of these Molybdenum steel Chromium steel TRUE ANSWER : ? YOUR ANSWER : ?
Dead mild steel, which contains 0.10 to 0.15 percent carbon is used for making Gears Flanges Shear blades Shafts TRUE ANSWER : ? YOUR ANSWER : ?