390) Sinking of an intermediate support of a continuous beam i) reduces the negative moment at support ii) increases the negative moment at support iii) reduces the positive moment at center of span iv) increases the positive moment at center of span The correct answer is

(i) and (iii)

(i)and(iv)

(ii) and (iii)

(ii) and (iv)

Answer is:

(i)and(iv)

Structural Engineering I MCQ with Answers

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391) The maximum value of hoop compression in a dome is given by [where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome]

wR / 4d

wR/2d

wR/d

2wR/d

Answer is:

wR/2d

392) In a spherical dome the hoop stress due to a concentrated load at crown is

compressive everywhere

tensile everywhere

partly compressive and partly tensile

zero

Answer is:

tensile everywhere

393) In a ring beam subjected to uniformly distributed load i) shear force at mid span is zero ii) shear force at mid span is maximum iii) torsion at mid span is zero iv) torsion at mid span is maximum The correct answer is

(i) and (iii)

(i)and(iv)

(ii) and (iii)

(ii) and (iv)

Answer is:

(i) and (iii)

394) In prestressed concrete

forces of tension and compression change but lever arm remains unchanged

forces of tension and compressions remain unchanged but lever arm changes with the moment

both forces of tension and compres-sion as well as lever arm change

both forces of tension and compres-sion as well as lever arm remain unchanged

Answer is:

forces of tension and compressions remain unchanged but lever arm changes with the moment

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390) Sinking of an intermediate support of a continuous beam i) reduces the negative moment at support ii) increases the negative moment at support iii) reduces the positive moment at center of span iv) increases the positive moment at center of span The correct answer is

(i)and(iv)

Structural Engineering I MCQ with Answers

Related Structural Engineering I MCQ with Answers

391) The maximum value of hoop compression in a dome is given by [where, w = load per unit area of surface of dome R = radius of curvature d = thickness of dome]

wR/2d

392) In a spherical dome the hoop stress due to a concentrated load at crown is

tensile everywhere

393) In a ring beam subjected to uniformly distributed load i) shear force at mid span is zero ii) shear force at mid span is maximum iii) torsion at mid span is zero iv) torsion at mid span is maximum The correct answer is

(i) and (iii)

394) In prestressed concrete

forces of tension and compressions remain unchanged but lever arm changes with the moment

Structural Engineering I MCQ with Answers