[{"id":110745,"question":"The band above the valence band is called","choices":[{"text":"high energy band","value":"A"},{"text":"conduction band","value":"B"},{"text":"empty band","value":"C"},{"text":"none of them","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110742,"question":"The valence band of an atom in a solid","choices":[{"text":"is always empty","value":"A"},{"text":"may or may not be empty","value":"B"},{"text":"can never be empty","value":"C"},{"text":"none of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110739,"question":"The electrons in the outermost shell of an atom are called","choices":[{"text":"core electrons","value":"A"},{"text":"valence electrons","value":"B"},{"text":"high energy electrons","value":"C"},{"text":"none of them","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110738,"question":"When a large number of atoms are brought close to one another to form a solid, each energy level of an isolated atom splits into sub-levels, called","choices":[{"text":"energy bands","value":"A"},{"text":"energy shells","value":"B"},{"text":"states","value":"C"},{"text":"all of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110736,"question":"Electrons of an isolated atom are bound to the nucleus, and","choices":[{"text":"can only have distinct energy level","value":"A"},{"text":"can only have same energy level","value":"B"},{"text":"may or may not have distinct energy levels","value":"C"},{"text":"none of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110735,"question":"Which of the following theory completely explain the three types of materials","choices":[{"text":"Bohr model of electron distribution","value":"A"},{"text":"Rutherford atomic model","value":"B"},{"text":"Pauli's exclusion principle","value":"C"},{"text":"energy band theory","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110731,"question":"Lead, copper and wrought iron are examples of","choices":[{"text":"brittle substances","value":"A"},{"text":"ductile substances","value":"B"},{"text":"plastic substances","value":"C"},{"text":"elastic substances","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110730,"question":"Glass and high carbon steel are the examples of","choices":[{"text":"brittle substances","value":"A"},{"text":"ductile substances","value":"B"},{"text":"plastic substances","value":"C"},{"text":"elastic substances","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110729,"question":"The substances which break just after the elastic limit is reached, are known as","choices":[{"text":"brittle substances","value":"A"},{"text":"ductile substances","value":"B"},{"text":"plastic substances","value":"C"},{"text":"elastic substances","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110727,"question":"Substances which break just after the elastic limit is reached, are known as","choices":[{"text":"brittle substances","value":"A"},{"text":"ductile 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them","value":"C"},{"text":"none of them","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110720,"question":"Under the elastic region, the deformation produced in the material, the deformation produced in the material will be","choices":[{"text":"permanent","value":"A"},{"text":"temporary","value":"B"},{"text":"either of them","value":"C"},{"text":"none of them","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110718,"question":"The greatest stress that a material can endure without losing the proportionality between stress and strain is called","choices":[{"text":"plastic line","value":"A"},{"text":"breaking point","value":"B"},{"text":"proportional limit","value":"C"},{"text":"none of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110717,"question":"In the stress-strain graph, stress is increased linearly with strain until a point is reached, this point is known as","choices":[{"text":"plastic limit","value":"A"},{"text":"plastic deformation","value":"B"},{"text":"proportional limit","value":"C"},{"text":"elastic behaviour","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110715,"question":"The number of different crystals systems based on the geometrical arrangement of their atoms and the resultant geometrical structure are","choices":[{"text":"5","value":"A"},{"text":"7","value":"B"},{"text":"9","value":"C"},{"text":"14","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":110714,"question":"When the shear stress and shear stain are involved, then their ratio is called","choices":[{"text":"Young's modulus","value":"A"},{"text":"Bulk modulus","value":"B"},{"text":"Shear modulus","value":"C"},{"text":"all of them","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110712,"question":"In case of the three dimensional deformation, when volume is involved, the ratio of applied stress to volumetric strain is called","choices":[{"text":"Young's modulus","value":"A"},{"text":"Bulk 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as","choices":[{"text":"stress x strain","value":"A"},{"text":"strain/stress","value":"B"},{"text":"1/2 x stress x strain","value":"C"},{"text":"stress/strain","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110701,"question":"Experiments revealed that the ratio of the stress to the strain is a constant value for","choices":[{"text":"different material","value":"A"},{"text":"all materials","value":"B"},{"text":"a given material","value":"C"},{"text":"all of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110698,"question":"The SI unit of strain is","choices":[{"text":"N","value":"A"},{"text":"Dynes","value":"B"},{"text":"Pascal","value":"C"},{"text":"Dimensionless","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":110697,"question":"The measure of the deformation in a solid when stress is applied to its is called","choices":[{"text":"elastic constant","value":"A"},{"text":"young's modulus","value":"B"},{"text":"strain","value":"C"},{"text":"elasticity","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110695,"question":"When a stress changes the shape, it is called the","choices":[{"text":"compressional stress","value":"A"},{"text":"tensile stress","value":"B"},{"text":"shear stress","value":"C"},{"text":"any one of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110693,"question":"When a stress changes length, it is called the","choices":[{"text":"compressional stress","value":"A"},{"text":"tensile stress","value":"B"},{"text":"shear stress","value":"C"},{"text":"any one of them","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":110690,"question":"The SI unit of stress is","choices":[{"text":"N/m<sup>2</sup>","value":"A"},{"text":"Nmc","value":"B"},{"text":"dynes/m","value":"C"},{"text":"N","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":110689,"question":"The force applied on unit area to produce any change in the shape, volume or length of a body is known as","choices":[{"text":"strain","value":"A"},{"text":"elasticity","value":"B"},{"text":"stretching","value":"C"},{"text":"stress","value":"D"},{"value":"E"}],"correctAnswer":4}]