Grand Quiz Section-I

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The Z component of the force F will be?

• 80Sin30
• -80Sin 30
• -80Cos30Sin40
• 80Cos30Sin40

The resultant moment about point O will be?

• rOA x FA
• rOB x FB
• (rOA x FA) - (rOB x FB)
• (rOA x FA) + (rOB x FB)

The value of resultant Force will be the Area integral of this 3D curve (The width of wall is b). The resultant force will be in which direction.

• Rightward
• Leftward
• Upward
• Downward

The Crane is dragging the Log Rightward. Direction of Friction of Wheel A and B will be.

• Rightward
• Leftward
• Depends upon the mass of the log
• Depends upon the mass of the crane

A 180-lb farmer tries to restrain the cow from escaping by wrapping the rope one turns around the tree trunk. If the cow exerts a force of 250 lb on the rope. The coefficient of static friction between the rope and the tree trunk is µs = 0.15, and between the farmer’s shoes and the ground is µs’ = 0.3. What will be value of contact angle used for belt friction theory?

• 3π
• 2π
• π
• 0.5π

Normal force always perpendicular to?

• Applied Force
• Gravitational Force
• Friction Force
• Tension Force

The limit of line integral to find x coordinate of CG will be.

• 0 - 1
• 0 - 2
• 1 - 0
• 2 - 0

What will be the ramp angle?

• 10.8
• 7.5
• 8.10
• Insufficient Data, Can't be determined.

The spring has a stiffness k = 200 N/m and an un-stretched length of 0.5 m. If it is attached to the 3-kg smooth collar and the collar is released from rest at A. Neglect the size of the collar . The spring displacement (Stretch) at point B will be?

• 2.5 m
• 2 m
• 1.5 m
• 1 m