1. A steel rod of 2 cm diameter and 5 metres long is subjected to an axial pull of 3000 kg. If E = 2.1 x 106, the elongation of the rod will be
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2. If a steel rod of 20 mm diameter and 5 metres long elongates by 2.275 mm when subjected to an axial pull of 3000 kg, the stress developed, is
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3. When two plates butt together and are riveted with two cover plates with two rows of rivets, the joint is known as
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4. If the rivets in adjacent rows are staggered and outermost row has only one rivet, the arrangement of the rivets, is called
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5. The distance between the centres of adjacent rivets in the same row, is called
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6. Failure of riverted joints is due to
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7. According to Unwin's formula, the diameter d of a rivet of plate of thickness t is :
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