[{"id":108831,"question":"Among most of the metals, gold is a:","choices":[{"text":"light metal","value":"A"},{"text":"heavy metal","value":"B"},{"text":"very heavy metal","value":"C"},{"text":"very light metal","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":108830,"question":"Affect of air, temperature and humidity on gold is:","choices":[{"text":"very frequently","value":"A"},{"text":"very little","value":"B"},{"text":"very rare","value":"C"},{"text":"very slowly","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":108829,"question":"Gold is a:","choices":[{"text":"common metal","value":"A"},{"text":"rare metal","value":"B"},{"text":"not common metal","value":"C"},{"text":"Very rare metal","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":108828,"question":"Gold is regarded as:","choices":[{"text":"valued metal","value":"A"},{"text":"basic metal","value":"B"},{"text":"beautiful metal","value":"C"},{"text":"rare metal","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":108827,"question":"Iron ore, after first stage smelting is called:","choices":[{"text":"Wrought iron","value":"A"},{"text":"Cast iron","value":"B"},{"text":"Pig iron","value":"C"},{"text":"Raw iron","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":108825,"question":"Iron ore deposits found in Kalabagh (Mianwali) are:","choices":[{"text":"Magnetite","value":"A"},{"text":"Haematite","value":"B"},{"text":"Limonite","value":"C"},{"text":"Siderite","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":108823,"question":"In haematite iron ore, iron particles content:","choices":[{"text":"Is 60-70 percent","value":"A"},{"text":"Is up to 50 percent","value":"B"},{"text":"Is near about 40 percent","value":"C"},{"text":"Is up to 45 percent","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":108821,"question":"In magnetite iron ore, iron particles percentage:","choices":[{"text":"Is up to 60 percent","value":"A"},{"text":"Is near about 50 percent","value":"B"},{"text":"Is up to 72.4 percent","value":"C"},{"text":"Is about 90 percent","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":108817,"question":"From economic point of view, iron ore is useable, which contain iron particles:","choices":[{"text":"More than 10 percent","value":"A"},{"text":"At least 20 percent","value":"B"},{"text":"Up to 30 percent","value":"C"},{"text":"More than 50 percent","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":108814,"question":"U.S.A' s largest iron ore deposits are located in:","choices":[{"text":"Alabama & Birmingham state","value":"A"},{"text":"Lake Superior region","value":"B"},{"text":"Western mountainous region","value":"C"},{"text":"Alaska state","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":108812,"question":"China's largest iron ore deposits are located:","choices":[{"text":"In Manchurian region","value":"A"},{"text":"In Sin Kiang region","value":"B"},{"text":"In Yangtze valley","value":"C"},{"text":"In Se-Kiang region","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":108811,"question":"In the world, China's position in iron ore production is:","choices":[{"text":"Not very important","value":"A"},{"text":"Very important","value":"B"},{"text":"Very unimportant","value":"C"},{"text":"At third position","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":108809,"question":"In 2001, Brazil' s iron ore production was:","choices":[{"text":"50 million metric tons","value":"A"},{"text":"100 million metric tons","value":"B"},{"text":"125 million metric tons","value":"C"},{"text":"200 million metric tons","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":108807,"question":"Brazil's largest iron ore deposits are in:","choices":[{"text":"Minas Geras","value":"A"},{"text":"Paraba valley","value":"B"},{"text":"Bahia","value":"C"},{"text":"Mato Grasso","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":108805,"question":"In the world, Australia ranks in iron ore production:","choices":[{"text":"At first position","value":"A"},{"text":"At second position","value":"B"},{"text":"At fifth position","value":"C"},{"text":"At not any position","value":"D"},{"value":"E"}],"correctAnswer":2}]