Questions 1131–1140 of 1300. Imported answers require independent review unless marked reviewed.

Topic practice 1300 questionsPage 114 of 130

Question 36

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A square area (on the surface of the earth) with side 100 m and uniform height, appears as 1 cm

on a vertical aerial photograph. The topographic map shows that a contour of 650 m passes through the area. If focal length of the camera lens is 150 mm, the height from which the aerial photograph was taken, is
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Question 36

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A level instrument at a height of 1.320 m has been placed at a station having a Reduced Level (RL) of 112.565 m. The instrument reads −2.835 m on a leveling staff held at the bottom of a bridge deck. The RL (in m) of the bottom of the bridge deck is
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Question 37

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The solution at

,

of the partial differential equation

subject to initial conditions of

and

is
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Question 37

Open question
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The value (up to two decimal places) of a line integral

, for

along C which is a straight line joining (0,0) to (1,1) is

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Question 38

Open question
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The solution (up to three decimal places) at

of the differential equation

subject to boundary conditions

and

is _____

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Question 38

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An 8 m long simply-supported elastic beam of rectangular cross-section (100 mm × 200 mm) is subjected to a uniformly distributed load of 10 kN/m over its entire span. The maximum principal stress (in MPa, up to two decimal places) at a point located at the extreme compression edge of a cross-section and at 2 m from the support is ______

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Question 39

Open question
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Variation of water depth (

) in a gradually varied open channel flow is given by the first order differential equation

Given initial condition:

m. The depth (in m, up to three decimal places) of flow at a downstream section at

m from one calculation step of Single Step Euler Method is _____

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Question 39

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A prismatic beam P-Q-R of flexural rigidity EI = 1×10^4 kN m² is subjected to a moment of 180 kNm at Q as shown in the figure.
Diagram for Civil Engineering question 39

The rotation at Q (in rad, up to two decimal places) is ______

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Question 40

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An RC short column (with lateral ties) of rectangular cross section of 250 mm × 300 mm is reinforced with four numbers of 16 mm diameter longitudinal bars. The grades of steel and concrete are Fe415 and M20, respectively. Neglect eccentricity effect. Considering limit state of collapse in compression (IS 456 : 2000), the axial load carrying capacity of the column (in kN, up to one decimal place) is _____

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Question 40

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A prismatic propped cantilever beam of span L and plastic moment capacity M_p is subjected to a concentrated load at its mid-span. If the collapse load of the beam is α M_p/L, the value of α is ______

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