Related Questions

A truss containing j joints and m members, will be a simple truss if
A m = 2j - 3
B j = 2m - 3
C m = 3j - 2
D j = 3m - 2
To minimize the total cost of a roof truss, the ratio of the cost of truss to the cost of purlins shall be
A 1
B 2
C 3
D 4
Which of the following encapsulates PPP frames in Ethernet frames and uses common PPP features like authentication, encryption, and compression?
A PPP
B PPPoA
C PPPoE
D Token Ring
The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at
A the centre of the disc
B the point of contact
C an infinite distance on the plane surface
D the point on the circumference situated vertically opposite to the contact point
In determining stresses in frames by methods of sections, the frame is divided into two parts by an imaginary section drawn in such a way as not to cut more than
A Two members with unknown forces of the frame
B Three members with unknown forces of the frame
C Four members with unknown forces of the frame
D Three members with known forces of the frame
A rigid body, under the action of external forces, can be replaced by two masses placed at a fixed distance apart. The two masses form an equivalent dynamical system, if
A The sum of the two masses is equal to the total mass of body
B The center of gravity of the two masses coincides with that of the body
C The sum of mass moment of inertia of the masses about their center of gravity is equal to the mass moment of inertia of the body
D All of the above
The force acting on a point on the surface of a rigid body may be considered to act
A At the centre of gravity of the body
B On the periphery of the body
C On any point on the line of action of the force
D At any point on the surface normal to the line of action of the force
Hudson’s formula gives the dead weight of a truss bridge as a function of
A Bottom chord area
B Top chord area
C Effective span of bridge
D Heaviest axle load of engine
In the truss, the force in the member AC is
A 6.25 t compressive
B 8.75 t tensile
C t tensile
D t compressive
When a load crosses a through type Pratt truss in the direction left to right, the nature of force in any diagonal member in the left half of the span would
A Change from compression to tension
B Change from tension to compression
C Always be compression
D Always be tension

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