A gas performs the maximum work, when it expands (A) Non-uniformly (B) Adiabatically (C) Isobarically (D) Isothermally

A gas performs the maximum work, when it expands (A) Non-uniformly
(B) Adiabatically
(C) Isobarically
(D) Isothermally
by

1 Answer

Answer :

(C) Isobarically
by

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A train travels between two stations 15 km apart in 18 minutes. If the train accelerates for a part of journey uniformly followed by uniform retardation, the maximum speed attained by the train during the journey will by a.125 km/hr b.107 dynes c.80 km/hr d.100 km/hr e.60 km/hr

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A simply supported rolled steel joist 8 m long carries a uniformly distributed load over it span so that the maximum bending stress is 75 N/mm². If the slope at the ends is 0.005 radian and the value of E = 0.2 × 106 N/mm2 , the depth of the joist, is (A) 200 mm (B) 250 mm (C) 300 mm (D) 400 mm

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The maximum bending moment for a simply supported beam with a uniformly distributed load w/unit length, is (A) WI/2 (B) WI²/4 (C) WI²/8 (D) WI²/12

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A simply supported beam which carries a uniformly distributed load has two equal overhangs. To have maximum B.M. produced in the beam least possible, the ratio of the length of the overhang to the total length of the beam, is (A) 0.207 (B) 0.307 (C) 0.407 (D) 0.508

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Last Answer : (A) 0.207 

The maximum deflection due to a uniformly distributed load w/unit length over entire span of a cantilever of length l and of flexural rigidly EI, is (A) wl3 /3EI (B) wl4 /3EI (C) wl4 /8EI (D) wl4 /12E

Description : The maximum deflection due to a uniformly distributed load w/unit length over entire span of a  cantilever of length l and of flexural rigidly EI, is  (A) wl3 /3EI (B) wl4 /3EI (C) wl4 /8EI (D) wl4 /12E

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A simply supported beam A carries a point load at its mid span. Another identical beam B carries the same load but uniformly distributed over the entire span. The ratio of the maximum deflections of the beams A and B, will be (A) 2/3 (B) 3/2 (C) 5/8 (D) 8/5

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When a uniformly distributed load, shorter than the span of the girder, moves from left to right, then the conditions for maximum bending moment at a section is that (A) The head of the load reaches the section (B) The tail of the load reaches the section (C) The load position should be such that the section divides it equally on both sides (D) The load position should be such that the section divides the load in the same ratio as it divides the span

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When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies (A) Less than the left half span (B) Whole of left half span (C) More than the left half span (D) Whole span

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