2451. Tangent of angle of friction is equal to_________________?
A. kinetic friction
B. limiting friction
C. angle of repose
D. coefficient of friction
✅ The correct answer is option D.
Civil Engineering
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2452. To generate the j the column of the flexibility matrix________________?
A. a unit force is applied at coordinate j and the displacements are calculated at all coordinates
B. a unit displacement is applied at co-ordinate j and the forces are calculated at all coordinates
C. a unit force is applied at coordinate j and the forces are calculated at all coordinates
D. a unit displacement is applied at co-ordinate j and the displacements are calculated at all co-ordinates
✅ The correct answer is option A.
2453. The magnitude of two forces, which when acting at right angle produce resultant force of VlOkg and when acting at 60° produce resultant of Vl3 kg. These forces are____________________?
A. 2 and V6
B. 3 and 1 kg
C. V5andV5
D. 2 and 5
✅ The correct answer is option C.
2454. A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of__________________?
A. r/2
B. r/A
C. r/%
D. 0.134 r
✅ The correct answer is option D.
2455. While using three moments equation, a fixed end of a continuous beam is replaced by an additional span of__________________?
A. zero length
B. infinite length
C. zero moment of inertia
D. none of the above
✅ The correct answer is option A.
2456. According to principle of transmissibility of forces, the effect of a force upon a body is_______________?
A. maximum when it acts at the center of gravity of a body
B. different at different points in its line of action
C. the same at every point in its line of action
D. minimum when it acts at the C.G. of the body
✅ The correct answer is option C.
2457. Kinetic friction is the________________?
A. tangent of angle between normal reac-tion and the resultant of normal reac-tion and the limiting friction
B. ratio of limiting friction and normal reaction
C. the friction force acting when the body is just about to move
D. the friction force acting when the body is in motion
✅ The correct answer is option D.
2458. A simply supported beam deflects by 5 mm when it is subjected to a concentrated load of 10 kN at its centre. What will be deflection in a 1/10 model of the beam if the model is subjected to a 1 kN load at its centre ?
A. 5 mm
B. 0.5 mm
C. 0.05 mm
D. 0.005mm
✅ The correct answer is option A.
2459. A particle moves along a straight line such that distance (x) traversed in t seconds is given by x = t2 (t – 4), the acceleration of the particle will be given by the equation_________________?
A. 3t2-lt
B. 3t2+2t
C. 6f-8
D. 6f-4
✅ The correct answer is option C.
2460. 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
✅ The correct answer is option D.