The oil rig is supported on the trailer by the pin or axle at A and the frame at B. If the rig has a weight of 115,000 lb and the center of gravity at G, determine the force F that must de developed along the hydraulic cylinder CD in order to start lifting the rig (slowly) off B toward the vertical. Also compute the horizontal and vertical components of reaction at the pin A.

Ax = 205 kip, Ay = -57.5 kip, FCD = 268 kip

Ax = 343 kip, Ay = -172.5 kip, FCD = 447 kip

Ax = 241 kip, Ay = -172.5 kip, FCD = 375 kip

Ax = 220 kip, Ay = -70.1 kip, FCD = 288 kip

The oil rig is supported on the trailer by the pin or axle at A and t

1.	The oil rig is supported on the trailer by the pin or axle at A and the frame at B. If the rig has a weight of 115,000 lb and the center of gravity at G, determine the force F that must de developed along the hydraulic cylinder CD in order to start lifting the rig (slowly) off B toward the vertical. Also compute the horizontal and vertical components of reaction at the pin A.
A.	Ax = 343 kip, Ay = -172.5 kip, FCD = 447 kip
B.	Ax = 205 kip, Ay = -57.5 kip, FCD = 268 kip
C.	Ax = 241 kip, Ay = -172.5 kip, FCD = 375 kip
D.	Ax = 220 kip, Ay = -70.1 kip, FCD = 288 kip
Answer» B. Ax = 205 kip, Ay = -57.5 kip, FCD = 268 kip

Discussion

No Comment Found

Related MCQs

The crane provides a long-reach capacity by using the telescopic boom segment DE. The entire boom is supported by a pin at A and by the telescopic hydraulic cylinder BC, which can be considered as a two-force member. The rated load capacity of the crane is measured by a maximum force developed in the hydraulic cylinder. If this maximum force is developed when the boom supports a mass m = 6 Mg and its length is l = 40 and = 60°, determine the greatest mass that can be supported when the boom length is extended to l = 50 m and = 45°. Neglect the weight of the boom and the size of the pulley at E. Assume the crane does not overturn. Note: when = 60° BC is vertical; however, when = 45° this is not the case.
Determine the tension in the supporting cables BC and BD and the components of reaction at the ball-and-socket joint A of the boom. The boom supports a drum having a weight of 200 lb. at F. Points C and D lie in the xy plane.
There is a ball and socket connection at A. At B there is a roller that prevents motion in the z direction. Corner C is tied to D by a rope. The triangle is weightless. Determine the unknown force components acting at A, B, and C. Use a scalar analysis.
The sports car has a mass of 1.5 Mg and mass center at G. If the front two springs each have a stiffness of kA=58 kN/m and the rear two springs each have a stiffness of kB = 65 kN/m, determine their compression when the car is parked on the 30° incline. Also, what frictional force FB must be applied to each of the rear wheels to hold the car in equilibrium?
Compute the horizontal and vertical components of force at pin B. The belt is subjected to a tension of T=100 N and passes over each of the three pulleys.
There is a ball and socket connection at A. At B there is a roller that prevents motion in the ‚Äîz direction. Corner C is tied to D by a rope. The triangle is weightless. Determine the unknown force components acting at A, B, and C. Use a scalar analysis.
The crane provides a long-reach capacity by using the telescopic boom segment DE. The entire boom is supported by a pin at A and by the telescopic hydraulic cylinder BC, which can be considered as a two-force member. The rated load capacity of the crane is measured by a maximum force developed in the hydraulic cylinder. If this maximum force is developed when the boom supports a mass m = 6 Mg and its length is l = 40 and = 60¬∞, determine the greatest mass that can be supported when the boom length is extended to l = 50 m and = 45¬∞. Neglect the weight of the boom and the size of the pulley at E. Assume the crane does not overturn. Note: when = 60¬∞ BC is vertical; however, when = 45¬∞ this is not the case.
A Russell's traction is used for immobilizing femoral fractures C. If the lower leg has a weight of 8 lb, determine the weight W that must be suspended at D in order for the leg to be held in the position shown. Also, what is the tension force F in the femur and the distance which locates the center of gravity G of the lower leg? Neglect the size of the pulley at B.
The oil rig is supported on the trailer by the pin or axle at A and the frame at B. If the rig has a weight of 115,000 lb and the center of gravity at G, determine the force F that must de developed along the hydraulic cylinder CD in order to start lifting the rig (slowly) off B toward the vertical. Also compute the horizontal and vertical components of reaction at the pin A.
Determine the horizontal and vertical components of reaction at the pin A and the reaction at the roller support B required for equilibrium of the truss.

Discussion

No Comment Found

Related MCQs

Reply to Comment