GATE CE 2018 Paper 1 — page 10

Questions 28–30 of 65. Imported answers require review unless explicitly marked reviewed.

The frequency distribution of the compressive strength of 20 concrete cube specimens is given in the table:

f (MPa)	Number of specimens with compressive strength equal to f
23	4
28	2
22.5	5
31	5
29	4

is the mean strength of the specimens and

is the standard deviation, the number of specimens (out of 20) with compressive strength less than

is ______

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In a fillet weld, the direct shear stress and bending tensile stress are 50 MPa and 150 MPa, respectively. As per IS 800: 2007, the equivalent stress (in MPa, up to two decimal places) will be ______

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In a shrinkage limit test, the volume and mass of a dry soil pat are found to be 50 cm

and 8 g, respectively. The specific gravity of the soil solids is 2.71 and the density of water is 1 g/cc. The shrinkage limit (in %, up to two decimal places) is ______

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2018 · Paper 1

Question 18

Question 19

Question 20