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MCQs

Total Questions : 1284 | Page 123 of 129 pages
Question 1221. Which of the following represents the state of neutral equilibrium?
  1.    A smooth cylinder lying on a curved surface
  2.    None of these
  3.    A smooth cylinder lying on a convex surface
  4.    A cube resting on one edge
 Discuss Question
Answer: Option B. -> None of these
Question 1222. The angle of projection at which the horizontal range and maximum height of a projectile are equal to
  1.    45°
  2.    56°
  3.    76°
  4.    36°
 Discuss Question
Answer: Option C. -> 76°
Question 1223. The unit of Moment of Inertia of a body, is
  1.    m³
  2.    m
  3.    m²
  4.    m⁴
 Discuss Question
Answer: Option D. -> m⁴
Question 1224. The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is
  1.    98 m
  2.    1960 m
  3.    490 m
  4.    980 m
 Discuss Question
Answer: Option D. -> 980 m
Question 1225. The shape of a suspended cable under its own weight, is
  1.    Circular
  2.    Catenary
  3.    Parabolic
  4.    Elliptical
 Discuss Question
Answer: Option B. -> Catenary
Question 1226. A stone is whirled in a vertical circle, the tension in the string, is maximum
  1.    At all the positions
  2.    When the stone is at the lowest position
  3.    When the string is horizontal
  4.    When the stone is at the highest position
 Discuss Question
Answer: Option B. -> When the stone is at the lowest position
Question 1227. The graphical method of determining the forces in the members of a truss is based on
  1.    Method of joint
  2.    Method of section
  3.    Either method
  4.    None of the two methods
 Discuss Question
Answer: Option A. -> Method of joint
Question 1228. The potential energy of a particle falling through a straight shaft drilled through the earth (assumed homogenous and spherical) is proportional to (where r is the distance of’the particle from centre of the earth)
  1.    log r
  2.    1/r
  3.    r2
  4.    r
 Discuss Question
Answer: Option C. -> r2
Question 1229. A square hole is punched out of a circular lamina, the diagonal of the square being the radius of the circle. If ‘r’ is the radius of the circle, the C.G. of the remainder from the corner of the square on the circumference will be
  1.    [r (π + 0.25)]/(π + 0.5)
  2.    [r (π - 0.5)]/(π + 0.25)
  3.    [r (π - 0.25)]/(π - 0.5)
  4.    [r (π + 0.25)]/(π - 0.5)
 Discuss Question
Answer: Option C. -> [r (π - 0.25)]/(π - 0.5)
Question 1230. A geo-stationary satellite is one which orbits the earth with a velocity of rotation of
  1.    Sun
  2.    Pole
  3.    Earth
  4.    Moon
 Discuss Question
Answer: Option C. -> Earth

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