(0 C7047

direction of the resultant forces.

10 A beam AB 10m long is hinged at A and supported on rollers over a smooth (10)
surface inclined at 30° to the horizontal at B. The beam is loaded as shown in Fig
2. Determine the reactions at A and B.

4kN tet Sly 5

Fig. 2
11 9) Three cylinders with given diameters are arranged as shown in fig 3. The (5)
cylinders A and B weigh 1000N each and the weight of cylinder © is 2000N.
Determine the forces exerted at the contact points.

Fig. 3
b) A rigid bar is subjected to a system of parallel forces as shown in Fig 4. Reduce (5)
this system to a single force and moment system at A.

15N 50N 10N 20N
A ே D B
‏سما‎ 0,211 015 ൩ அ 0.25 ಗರ್‌
Fig. 4
SET Il
Each question carries 10 marks
12 Locate the centroid of the shaded area shown in Fig. 5 (10)

1

Fig. 5
13 A rectangular hole is made in a triangular section as shown in Fig 6. Determine (10)

the M.I. of the section about x-x axis passing through the CG of the section and

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