[{"text": "Read the following passage and answer questions 6-10:

[E-0,\u00a0DU-D : 2020-21]

\u00a0An alloy is a substance that is formed by combining a metal with other metals, or nonmetals. For example, brass is an alloy of the metals copper and zinc, and steel is alloy of the metal iron with the nonmetal carbon. The special characteristics of metals, such as hardness, strength, flexibility, and weight are called its properties. By the process of alloying, it is possible to create materials with the exact combinations of properties for particular use. In the aircraft industry, there is a need for metals that are both strong and light. Steel is strong but too heavy, whereas aluminum is light but not strong. By mixing aluminum with copper and other metals, an alloy is created that is strong to withstand the stresses of flight, but light enough to reduce the cost of fuel to lift the aircraft. There is an important difference between the alloys created by us and the combination of metals that occur accidentally as impure metals. Both are mixtures, but alloys are mixtures that have been deliberately combined in specific proportions for definite purpose.", "type": "text_block", "database_type": "", "university": "", "year": "", "unit": "", "shift": "", "subject": "", "chapter": "", "topic": ""}, {"question": "What is an alloy?", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "Metals melted in liquid form.", "answer": false}, {"option": "Industrial meterials which are not very good", "answer": false}, {"option": "A planned combination of materials for a specifice purpose.", "answer": true}, {"option": "Impure materials that occur accidentally.", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2020-21", "unit": "d", "shift": "", "subject": "e-a", "chapter": "e-30", "topic": "", "title": "What is an alloy?", "full_question": "What is an alloy?

[E-30, DU-D : 2020-21]

"}, {"question": "Which one of the following, according to the passage,is applicable to metals?", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "They do not have any weight", "answer": false}, {"option": "They are not strong", "answer": false}, {"option": "They are pliable", "answer": true}, {"option": "They are soft", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2020-21", "unit": "d", "shift": "", "subject": "e-a", "chapter": "e-22", "topic": "", "title": "Which one of the following, according to the passage,is applicable to metals?", "full_question": "Which one of the following, according to the passage,is applicable to metals?

[E-22, DU-D : 2020-21]

"}, {"question": "What does the writer say about alloys in the text?", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "They are not useful", "answer": false}, {"option": "They are created from waste products", "answer": false}, {"option": "They are a combination of metals in specific proportions", "answer": true}, {"option": "In alloys metals are combined in random proportions", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2020-21", "unit": "d", "shift": "", "subject": "e-a", "chapter": "e-30", "topic": "", "title": "What does the writer say about alloys in the text?", "full_question": "What does the writer say about alloys in the text?

[E-30, DU-D : 2020-21]

"}, {"question": "Why does the passage give the example of the aircraft industry?", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "To emphasise the importance of the aircraft industry.", "answer": false}, {"option": "To demonstrate how alloys can be used to solve industrial problems.", "answer": true}, {"option": "To show how materials can be used without alloying.", "answer": false}, {"option": "To show the negative side of alloys.", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2020-21", "unit": "d", "shift": "", "subject": "e-a", "chapter": "e-3", "topic": "", "title": "Why does the passage give the example of the aircraft industry?", "full_question": "Why does the passage give the example of the aircraft industry?

[E-3, DU-D : 2020-21]

"}, {"question": "The passage says that alloys are ____", "mark": 1.0, "answer": "one", "explanation": "", "options": [{"option": "industrial by products", "answer": false}, {"option": "industrially unimportant", "answer": false}, {"option": "made by us", "answer": true}, {"option": "only used in aircraft industry", "answer": false}], "type": "question", "database_type": "qb", "university": "du", "year": "2020-21", "unit": "d", "shift": "", "subject": "e-a", "chapter": "e-30", "topic": "", "title": "The passage says that alloys are ____", "full_question": "The passage says that alloys are ____

[E-30, DU-D : 2020-21]

"}]