The product of either force of couple with the arm of the couple is called________________?
(A) resultant couple
(B) moment of the forces
(C) resulting couple
(D) moment of the couple
(D) none of the above
The center of gravity of a uniform lamina lies at_______________?
(A) the center of heavy portion
(B) the bottom surface
(C) the mid point of its axis
(D) all of the above
(D) none of the above
Center of percussion is______________?
(A) the point of C.G.
(B) the point of metacentre
(C) the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis
(D) point of suspension
(D) the point in a body about which it can rotate horizontally and oscillate under the influence of gravity
The units of moment of inertia of an area are_______________?
(A) kg m2
(B) m4
(C) kg/m2
(D) m3
(D) kg/m4
The center of gravity of a triangle lies at the point of__________________?
(A) concurrence of the medians
(B) intersection of its altitudes
(C) intersection of bisector of angles
(D) intersection of diagonals
(D) all of the above
The possible loading in various members of framed structures are_______________?
(A) compression or tension
(B) buckling or shear
(C) shear or tension
(D) all of the above
(D) bending
A trolley wire weighs 1.2 kg per meter length. The ends of the wire are attached to two poles 20 meters apart. If the horizontal tension is 1500 kg find the dip in the middle of the span________________?
(A) 2.5 cm
(B) 3.0 cm
(C) 4.0 cm
(D) 5.0 cm
(D) 2.0 cm
Maximum principal stress theory for the failure of a material at elastic point, is known________________?
(A) Guest’s or Trecas’ theory
(B) St. Venant’s theory
(C) Rankine’s theory
(D) Von Mises’ theory
The unit of work or energy in S.I. units is________________?
(A) newton
(B) pascal
(C) kilogram meter
(D) watt
(D) joule
Which of the following is not the unit of pressure ?
(A) kg/cm
(B) ata
(C) atmosphere
(D) mm of wcl
(D) newton