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Engineering
Civil
Civil Set-1
Structural Engineering I
280

Structural Engineering I MCQ with Answers

280) The approximate value of the ratio between direct tensile strength and flexural strength is

0.33

0.5

0.75

1

Answer is:

0.5

Structural Engineering I MCQ with Answers

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Related Structural Engineering I MCQ with Answers

281) Strength of concrete increases with

increase in water-cement ratio

increase in fineness of cement

decrease in curing time

decrease in size of aggregate

Answer is:

increase in fineness of cement

282) The relation between modulus of rupturefcr and characteristic strength of concrete fck is given by [where fcr and fck are in N/mm2']

fcr=0.35Vf7

fcr=0.57f7

fcr=0.7Vf7

fcr=1.2Vf7

Answer is:

fcr=0.7Vf7

283) The compressive strength of 100 mm cube as compared to 150 mm cube is always

less

more

equal

none of the above

Answer is:

more

284) According to IS : 456 -1978, the modulus of elasticity of concrete Ec (in N/mm2) can be taken as

Ec == 5700

Ec == 570

Ec == 5700fck

Ec = where fck N/mm2 = 700 is the characteristic strength in

Answer is:

Ec == 5700

Structural Engineering I MCQ with Answers

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