[{"id":208565,"question":"What is a measure of rigidity?
","choices":[{"text":"Stiffiness
","value":"A"},{"text":"Jardmess
","value":"B"},{"text":"Strength
","value":"C"},{"text":"Modulus of elasticity
","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":208564,"question":"What is the ratio of stress to strain in a material loaded within its\r\nelastic ranger.
","choices":[{"text":"Poisson’s ratio
","value":"A"},{"text":"Refractive index
","value":"B"},{"text":"Modulus of elasticity
","value":"C"},{"text":"None of above
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":208563,"question":"What is the ratio of the maximum load in a tension test to the original\r\ncross sectional area of the test bar.
","choices":[{"text":"Tensile strength
","value":"A"},{"text":"Yield strength
","value":"B"},{"text":"Shear strength
","value":"C"},{"text":"Torsion
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":208562,"question":"What typical\r\npenetrator is used in Brinell hardness test","choices":[{"text":"10 mm ball
","value":"A"},{"text":"1.6 mm diameter ball
","value":"B"},{"text":"20o needle
","value":"C"},{"text":"None of these
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":208561,"question":"What is a method of casehardening involving diffusion in which the\r\nsteel to be casehardened is machined, heat treated placed in an air tight box\r\nand heated to about 1000 oF
","choices":[{"text":"Annealing
","value":"A"},{"text":"Normalizing
","value":"B"},{"text":"Carburizing
","value":"C"},{"text":"Decomposition
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":208560,"question":"What is the most undesirable of all the elements commonly found in\r\nsteels.
","choices":[{"text":"Sulphur","value":"A"},{"text":"Phosphorus","value":"B"},{"text":"Silocn","value":"C"},{"text":"Magnesium","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":208559,"question":"What do you call\r\nearth and stone missed with the iron oxide","choices":[{"text":"Hematite
","value":"A"},{"text":"Gangue
","value":"B"},{"text":"Ore
","value":"C"},{"text":"Residue
","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":208558,"question":"What field of study encompasses the procurement and production of\r\nmetals.
","choices":[{"text":"Metallury
","value":"A"},{"text":"Geology
","value":"B"},{"text":"Metagraphy
","value":"C"},{"text":"Nanochemistry
\r\n\r\n
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":208557,"question":"What is defined as an intimate mechanical mixture of two or more phases\r\nhaving a definite composition and a definite temperature of transformation\r\nwithin the solid state.
","choices":[{"text":"Pearlite
","value":"A"},{"text":"Eutechtoid
","value":"B"},{"text":"Delta solid solution","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":208556,"question":"What refer to the casehardening process by which the carbon content of\r\nthe steel ear the surface of a part is increased?
","choices":[{"text":"Carburizing
","value":"A"},{"text":"Annealing
","value":"B"},{"text":"Normalizing
","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":208555,"question":"What is the most common alloying ingredient in copper?
","choices":[{"text":"Brass","value":"A"},{"text":"Zinc","value":"B"},{"text":"Cobalt","value":"C"},{"text":"Nickle","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":208554,"question":"What is a coal that has been previously burned in an oxygen poor\r\nenvironment?
","choices":[{"text":"Tuyere
","value":"A"},{"text":"Coke","value":"B"},{"text":"Silver","value":"C"},{"text":"Diamond","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":208553,"question":"What field of study encompasses procurement and production of metals.
","choices":[{"text":"Metallurgy
","value":"A"},{"text":"Geology
","value":"B"},{"text":"Material science
","value":"C"},{"text":"Metalgraphy
","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":208552,"question":"The following statements are true except one which one.
","choices":[{"text":"Carburizing does not harden a steel
","value":"A"},{"text":"Flame and induction hardening require the use of hard enable steels.
","value":"B"},{"text":"Quench –hardened steel does not require tempering to present\r\nbrittleness
","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":208551,"question":"What is the lowest\r\ntemperature diffusion hardening process and does not require a quench","choices":[{"text":"Carburizing
","value":"A"},{"text":"Tempering
","value":"B"},{"text":"Nitriding
","value":"C"},{"text":"Melting
","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":208550,"question":"What is the advantage of quench hardening?
","choices":[{"text":"Imporoved strength
","value":"A"},{"text":"Hardness
","value":"B"},{"text":"Wear characteristics
","value":"C"},{"text":"All of the choice","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":208549,"question":"Iron is said to be abundant in nature. About how many percent of the\r\nearth’s crust is iron.
","choices":[{"text":"10%","value":"A"},{"text":"5%","value":"B"},{"text":"20%","value":"C"},{"text":"8%","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":208548,"question":"The brown colour of the pulp obtained from chemical pulping is due to\r\nthe present of
","choices":[{"text":"Chlorine","value":"A"},{"text":"Residual lignin
","value":"B"},{"text":"Sodium hydochlorite
","value":"C"},{"text":"All above","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":208547,"question":"__________ is used\r\nfor fruits, vegetables and tobacco","choices":[{"text":"Potassium Chloride","value":"A"},{"text":"Potassium Sulphate","value":"B"},{"text":"Potassium nitraite","value":"C"},{"text":"All above","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":208546,"question":"_________ is preferred for horticultural crops and for tobacco and\r\npotatoes.
","choices":[{"text":"Potassium Chloride
","value":"A"},{"text":"Potassium Sulphate","value":"B"},{"text":"Potassium NItrate","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2}]