Technical Apti Set No 3

The channel section considered to have the highest efficiency is

• A. Quadrant

• B. Square

• C. Trapezoid

• D. Triangular

For stable structures, one of the important properties of flexibility and stiffness matrices is that the elements on the main diagonal i) of a stiffness matrix must be positive ii) of a stiffness matrix must be negative ii) of a flexibility matrix must be positive iv) of a flexibility matrix must be negative The correct answer is

• A (i) and (ii)

• B (ii) and (ii)

• c (i) and (iv)

• D (ii) and (iv)

Which one of the following laws of conservation forms the basis of continuity equation?

• A. Conservation of energy

• B. Conservation of mass

• C. Conservation of momentum

• D. Conservation of moment of inertia

Which of the following material will have the highest value of response

modification factor?

• A Structural steel frames

• B Reinforced concrete shear walls

• C Wood

• D Reinforced concrete frames with flexible joints

The coefficient of discharge of a venturi meter is

• A. lesser than nozzle meter

• B. lesser than an orifice meter

• C. greater than both the orifice meter and nozzle meter

• D. lower than a nozzle meter but greater orifice meter

Which structure will perform better during earthquake?

• A Statically determinate and indeterminate

• B Depends upon magnitude of earthe

• C Statically indeterminate

• D Statically determinate

What is the momentum correction factor for laminar flow in a circular tube?

• A. 1

• B. 1.33

• C. 2.5

• D. 3.75

When a structural member of the uniform section is subjected to a moment at one end only, then the moment required so as to rotate that end to produce a unit

slope, is called

• A Stiffness of member

• B Capacity of member

• C Potential of member

• D Resistance of member

The forces which meet at one point and have their lines of action in different

planes are called

• a) coplanar non-concurrent forces

• b) non-coplanar concurrent forces

• c) non-coplanar non-current forces

• d) intersecting forces

n and j are numbers of members and joints in a frame. It contains redundant

members if

• A n=3j-2

• B n 2-3

• C n < j - 2

• D n>21-3