1) In which power transmitting drive polygon effect is observed? a. Belt drive b. Chain drive c. Both a. and b. d. None of the above
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2) What is meant by gear ratio? a. The ratio of pinion speed and gear speed b. The ratio of number of teeth on pinion and number of teeth on gear c. Both a. and b. d. None of the above
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3) Which gears are used to connect two intersecting shaft axes? a. Crossed helical gear b. Worm and worm wheel c. Bevel gears d. All of the above
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4) In stress-strain diagram, up to proportional limit ______ a. stress is inversely proportional to strain b. force is directly proportional to displacement c. stress is directly proportional to strain d. strain is directly proportional to stress
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5) Deformation per unit length is called as ________ a. strain b. stress c. modulus of elasticity d. none of the above
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6) Which of the following materials do not have a well defined yield point? a. Heat treated steel b. Concrete c. Carbon fiber d. All of the above
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7) Factor of safety is the ratio of _________ a. working stress and ultimate strength b. yield strength and endurance strength c. ultimate strength and yield strength d. yield strength and working stress
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8) Which of the following statements is/are true for alloy steels? a. They contain carbon more than 1.7% b. They are ductile c. They have low resilience and toughness d. All of the above
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9) Which of the following is a ferrous alloy? a. Brass b. Aluminum alloys c. Cast steel d. All of the above
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10) Copper when alloyed with zinc is known as a. Brass b. Bronze c. Babbits d. All of the above
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