ISRO Scientist or Engineer Civil 2018

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For the following questions answer them individually
ISRO Scientist or Engineer Civil 2018 - Question 9

The least count of a vernier scale is

ISRO Scientist or Engineer Civil 2018 - Question 14

The true meridian of a place is the line in which earth’s surface is intersected by a plane through

ISRO Scientist or Engineer Civil 2018 - Question 17

Centre of gravity of a thin hollow cone lies on the axis of symmetry at a height of

ISRO Scientist or Engineer Civil 2018 - Question 18

The angle of friction is

ISRO Scientist or Engineer Civil 2018 - Question 22

If $$g_1$$ and $$g_2$$ are the gravitational acceleration on two mountains A and B respectively, then the weight of body when transported from A to B will be multiplied by

ISRO Scientist or Engineer Civil 2018 - Question 27

The shear force on a simply supported beam is proportional to

ISRO Scientist or Engineer Civil 2018 - Question 31

A trapezoidal channel has a bottom width of 6m and side slope of 1:1. The depth of flow is 1.5 m at a discharge of 15 cum/sec. The hydraulic radius and hydraulic average depth of flow respectively are

ISRO Scientist or Engineer Civil 2018 - Question 43

The consistency index of soil is defined as the ratio of

ISRO Scientist or Engineer Civil 2018 - Question 50

As per BIS 456-2000 (reaffirmed 2005), the minimum grade of concrete, with normal weight aggregate of 20 mm nominal maximum size, specified for a severe exposure condition is

ISRO Scientist or Engineer Civil 2018 - Question 51

Which one of the following is employed to determine the strength of hardened concrete of an existing concrete structure?

ISRO Scientist or Engineer Civil 2018 - Question 54

If 1000 gms of sand is sieved through 4.75 mm, 2.36 mm, 1.18 mm, 600 micron, 300 micron and 150 micron standard sieves and the weights retained are 0 gms, 100 gms, 150 gms, 200 gms, 350 gms and 200 gms respectively, then the fineness modulus of the sand is

ISRO Scientist or Engineer Civil 2018 - Question 56

In a singly reinforced beam, the effective depth is measured from its compression edge to

ISRO Scientist or Engineer Civil 2018 - Question 58

A soil sample is partially saturated. Its natural moisture content was found to be 22% and bulk density 2 gms/c.c. If the specific gravity of the solid particles is 2.65 and the density of water is 1 gms/c.c, the void ratio of the sample is

ISRO Scientist or Engineer Civil 2018 - Question 60

If the span to effective depth ratio of a simply supported beam, for span upto 10 m, does not exceed ------------, the vertical deflection limits may generally be satisfied.

ISRO Scientist or Engineer Civil 2018 - Question 62

Net sectional area of a tension member is equal to its gross sectional area

ISRO Scientist or Engineer Civil 2018 - Question 63

A cantilever beam ‘A’ with rectangular cross section is subjected to a concentrated load at its free end. If the width and depth of another cantilever beam ‘B’ are twice those of beam ‘A’ and subjected to the same load, then the deflection at the free end of beam ‘B’ as compared to that of ‘A’ will be

ISRO Scientist or Engineer Civil 2018 - Question 69

What is the volume of a 6m deep tank having rectangular shaped top $$6 m \times 4 m$$ and bottom $$4 m \times 2 m$$ computed through the use of Prismoidal formula?

ISRO Scientist or Engineer Civil 2018 - Question 70

The area to be measured for painting distemper for an internal surface of a plastered 230 mm thick brick wall having dimension of 3000 mm length and 3200 mm height and having a glazed louvered ventilator of size 600 mm $$\times$$ 400 mm in the wall is

ISRO Scientist or Engineer Civil 2018 - Question 72

A rectangular sheet of metal of length 6m and width 2 m is given. Four equal squares are removed from the corners. The sides of this sheet are now turned up to form an open rectangular box. The height of box such that the volume of the box is maximum will be

ISRO Scientist or Engineer Civil 2018 - Question 73

The complete solution of the linear differential equation
$$\frac{\text{d}^2z}{\text{d}t^2} + (p + q) \frac{\text{d}z}{\text{d}t} + pqz = 0$$

ISRO Scientist or Engineer Civil 2018 - Question 76

The differential equation $$y = x \frac{\text{d}y}{\text{d}x} + \frac{x}{\frac{dy}{dx}}$$ is

ISRO Scientist or Engineer Civil 2018 - Question 77

In a square matrix $$A = [ a_ij ],$$ if $$a_ij = − a_ji$$ for all i and j so that all the leading diagonal elements are zero, then the matrix is called

ISRO Scientist or Engineer Civil 2018 - Question 78

The difference of two complex numbers $$(x_1 + iy_1)$$ and $$(x_2 + iy_2)$$ is

ISRO Scientist or Engineer Civil 2018 - Question 80

A box contains 5 red and 10 green balls. Eight (8) of them are placed in another box. The chances that the latter box contains 2 red and 6 green balls are

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