Questions 741–750 of 1300. Imported answers require independent review unless marked reviewed.

Topic practice 1300 questionsPage 75 of 130

Question 36

Open question
CENAT2 marksNeeds review
The values of abscissa (

) and ordinate (

) of a curve are as follows:


2.0
5.00
2.5
7.25
3.0
10.00
3.5
13.25
4.0
17.00
By Simpson’s 1/3rd rule, the area under the curve (round off to two decimal places) is ________

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Question 36

Open question
CENAT2 marksNeeds review
A function is defined in Cartesian coordinate system as

. The value of the directional derivative of the function (in integer) at the point (2, 0) along the direction of the straight line segment from point (2, 0) to point

is

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Question 37

Open question
CENAT2 marksNeeds review
Vehicular arrival at an isolated intersection follows the Poisson distribution. The mean vehicular arrival rate is 2 vehicle per minute. The probability (round off to two decimal places) that at least 2 vehicles will arrive in any given 1-minute interval is ________

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Question 37

Open question
CENAT2 marksNeeds review
An elevated cylindrical water storage tank is shown in the figure. The tank has inner diameter of 1.5 m. It is supported on a solid steel circular column of diameter 75 mm and total height (L) of 4 m. Take, water density = 1000 kg/m³ and acceleration due to gravity = 10 m/s². If elastic modulus (E) of steel is 200 GPa, ignoring self-weight of the tank, for the supporting steel column to remain unbuckled, the maximum depth (h) of the water permissible (in m, round off to one decimal place) is
Diagram for Civil Engineering question 37


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Question 38

Open question
CENAT2 marksNeeds review
Refer the truss as shown in the figure (not to scale). If load,

kN, moment of inertia,

mm

, area of cross-section,

mm

, and length,

m for all the members of the truss, the compressive stress (in kN/m

, in integer) carried by the member Q-R is
Diagram for Civil Engineering question 38


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Question 38

Open question
CENAT2 marksNeeds review
A prismatic fixed-fixed beam, modelled with a total lumped-mass of 10 kg as a single degree of freedom (SDOF) system is shown in the figure. If the flexural stiffness of the beam is

kN/m, its natural frequency of vibration (in Hz, in integer) in the flexural mode will be
Diagram for Civil Engineering question 38


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Question 39

Open question
CENAT2 marksNeeds review
A prismatic cantilever prestressed concrete beam of span length,

m has one straight tendon placed in the cross-section as shown in the following figure (not to scale). The total prestressing force of 50 kN in the tendon is applied at

mm from the top in the cross-section of width,

mm and depth,

mm. If the concentrated load,

kN, the resultant stress (in MPa, in integer) experienced at point ‘Q’ will be
Diagram for Civil Engineering question 39


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Question 39

Open question
CENAT2 marksNeeds review
A perfectly flexible and inextensible cable is shown in the figure (not to scale). The external loads at F and G are acting vertically. The magnitude of tension in the cable segment FG (in kN, round off to two decimal places) is
Diagram for Civil Engineering question 39


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Question 40

Open question
CENAT2 marksNeeds review
A column is subjected to a total load (

) of 60 kN supported through a bracket connection, as shown in the figure (not to scale). The resultant force in bolt R (in kN, round off to one decimal place) is
Diagram for Civil Engineering question 40


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Question 40

Open question
CENAT2 marksNeeds review
A fire hose nozzle directs a steady stream of water of velocity 50 m/s at an angle of 45° above the horizontal. The stream rises initially but then eventually falls to the ground. Assume water as incompressible and inviscid. Consider the density of air and the air friction as negligible, and assume the acceleration due to gravity as 9.81 m/s². The maximum height (in m, round off to two decimal places) reached by the stream above the hose nozzle will then be

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