In compression, a prism of brittle material will break By shearing along oblique plane In direction perpendicular to application of load By forming a bulge By crushing into thousands of pieces TRUE ANSWER : ? YOUR ANSWER : ?
The material widely used for making pendulums of clocks is Stainless steel Nickel steel High speed steel Heat resisting steel TRUE ANSWER : ? YOUR ANSWER : ?
The brown smoke during the operation of a Bessemer converter indicates that the Silicon and manganese has burnt and carbon has started oxidizing Air is burning out silicon and manganese The brown smoke does not occur during the operation of a Bessemer converter The converter must be titled to remove the contents of the converter TRUE ANSWER : ? YOUR ANSWER : ?
Combined carbon in iron makes the metal Hard and gives a coarse grained crystalline structure Soft and gives coarse grained crystalline structure Hard and gives a fine grained crystalline structure Soft and gives a fine grained crystalline structure TRUE ANSWER : ? YOUR ANSWER : ?
In high speed steels, manganese is used to tougher the metal and to increase its Critical temperature Hardness Yield point Melting point TRUE ANSWER : ? YOUR ANSWER : ?
Balls for ball bearings are made of Cast iron Mild steel Carbon-chrome steel Stainless steel TRUE ANSWER : ? YOUR ANSWER : ?
Dye penetrant method is generally used to locate Temporary defects Superficial defects Surface defects Core defects TRUE ANSWER : ? YOUR ANSWER : ?
Tungsten when added to steel __________ the critical temperature. None of these Lowers Raises Does not effect TRUE ANSWER : ? YOUR ANSWER : ?
Alnico, an alloy used extensively for permanent magnets contains iron, nickel, aluminium and cobalt in the following ratio 50 : 20 : 20 : 10 40 : 30 : 20 : 10 50 : 20 : 10 : 20 30 : 20 : 30 : 20 TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following metal is used for nuclear energy? Niobium All of these Uranium Thorium TRUE ANSWER : ? YOUR ANSWER : ?