Applied Mechanics and Graphic Statics MCQs | Page - 3

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📊 Applied Mechanics and Graphic Statics
Q. A bullet weighing 10 gm moves with a velocity of l km/sec. Its kinetic energy is
(i) 5000 Nm
(ii) 5000 kg.m
(iii) 5000 J
The correct answer is
  • (A) Only (ii)
  • (B) Both (i) and (iii)
  • (C) Both (ii) and (iii)
  • (D) All (i), (ii) and (iii)
💬 Discuss
✅ Correct Answer: (B) Both (i) and (iii)
📊 Applied Mechanics and Graphic Statics
Q. A bullet weighing 200 g is fired horizontally with a velocity of 25 m/sec from a gun carried on a carriage which together with the gun weighs 100 kg. The velocity of recoil of the gun, will be
  • (A) 0.01 m/sec
  • (B) 0.05 m/sec
  • (C) 1.00 m/sec
  • (D) 1.5 m/sec
💬 Discuss
✅ Correct Answer: (B) 0.05 m/sec
📊 Applied Mechanics and Graphic Statics
Q. A cable loaded with 0.5 tonne per horizontal metre span is stretched between supports in the same horizontal line 400 m apart. If central dip is 20 m, the minimum tension in the cable, will be (A) 200 tonnes at the centre
  • (A) 200 tonnes at the centre
  • (B) 500 tonnes at the centre
  • (C) 200 tonnes at the right support
  • (D) 200 tonnes at the left support
💬 Discuss
✅ Correct Answer: (B) 500 tonnes at the centre
📊 Applied Mechanics and Graphic Statics
Q. A cable loaded with 10 kN/m of span is stretched between supports in the same horizontal line 100 m apart. If the central dip is 10 m, then the maximum and minimum pull in the cable respectively are
  • (A) 1346.3 kN and 1500 kN
  • (B) 1436.2 kN and 1250 kN
  • (C) 1346.3 kN and 1250 kN
  • (D) 1436.2 kN and 1500 kN
💬 Discuss
✅ Correct Answer: (C) 1346.3 kN and 1250 kN
📊 Applied Mechanics and Graphic Statics
Q. A car goes round a curve of radius 100 m at 25 m/sec. The angle to the horizontal at which the road must be banked to prevent sideways friction on the car wheels is tan"1 x, where x is (Assume g = 10 m/sec2)
  • (A) 43680
  • (B) 43497
  • (C) 43594
  • (D) 43682
💬 Discuss
✅ Correct Answer: (D) 43682
📊 Applied Mechanics and Graphic Statics
Q. A circular disc rotates at n rpm. The angular velocity of a circular ring of same mass and radius as the disc and to have the same angular momentum is
  • (A) n rpm
  • (B) n/2 rpm
  • (C) n/4 rpm
  • (D) 2n rpm
💬 Discuss
✅ Correct Answer: (B) n/2 rpm
📊 Applied Mechanics and Graphic Statics
Q. A cube on a smooth horizontal surface
  • (A) Cannot be in stable equilibrium
  • (B) Cannot be in neutral equilibrium
  • (C) Cannot be in unstable equilibrium
  • (D) Can be in any of these states
💬 Discuss
✅ Correct Answer: (D) Can be in any of these states
📊 Applied Mechanics and Graphic Statics
Q. A disc of mass 4 kg, radius 0.5 m and moment of inertia 3 kgm2 rolls on a horizontal surface so that its center moves with speed 5 m/see. Kinetic energy of the disc is
  • (A) 50 J
  • (B) 150 J
  • (C) 200 J
  • (D) 400 J
💬 Discuss
✅ Correct Answer: (C) 200 J
📊 Applied Mechanics and Graphic Statics
Q. A flywheel of moment of inertia 20 kgm is acted upon by a tangential force of 5 N at 2 m from its axis, for 3 seconds. The increase in angular velocity in radian per second is
  • (A) 43497
  • (B) 43499
  • (C) 2
  • (D) 3
💬 Discuss
✅ Correct Answer: (B) 43499
📊 Applied Mechanics and Graphic Statics
Q. A force P of 50 N and another force Q of unknown magnitude act at 90° to each other. They are balanced by a force of 130 N. The magnitude of Q is
  • (A) 60 N
  • (B) 80 N
  • (C) 100 N
  • (D) 120 N
💬 Discuss
✅ Correct Answer: (D) 120 N

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