Civil Engineering MCQs

Page No. 165

It is observed that in a certain sinusoidal oscillation, the amplitude is linearly dependent on the frequency f. If the maximum velocity during the oscillation is V, then V must be proportional to_________________?


af

✖


b1/f

✖


c1/f2

✖


d f2

✓


View Answer f2

A particle of mass 2 kg executes simple harmonic motion of frequency 6/71 Hz and amplitude 0.25 m. Its maximum kinetic energy is___________________?


a 4.5 J

✖


b9.0 J

✓


c12.0 J

✖


d18.0 J

✖


View Answer 9.0 J

If A is the amplitude of particle executing simple harmonic motion, then the total energy E of the particle is___________________?


a proportional to A

✖


bproportional to A2

✓


cproportional to 1/A2

✖


d independent of A

✖


View Answer proportional to A2

A stone is thrown up a slope of inclination 60° to the horizontal. At what angle to the slope must the stone be thrown so as to land as far as possible from the point of projection ?


a15°

✓


b30°

✖


c45°

✖


d75°

✖


View Answer 15°

If a projectile is fired with an initial velocity of 10 m/sec at an angle of 60° to the horizontal, its horizontal and vertical velocity at the highest point of trajectory are___________________?


a 0 and 5 m/sec

✖


b5 m/sec and 0

✓


c5 V3 m/sec and 0

✖


d5 and 5V3 m/sec

✖


View Answer 5 m/sec and 0

A projectile has maximum range of 40 m on a horizontal plane. If angle of projection is a and the time of flight is 1 second, then sin a must be about__________________?


a1/4

✓


b 1/3

✖


c1/2

✖


d1/5

✖


View Answer 1/4

The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is__________________?


a98 m

✖


b490 m

✖


c980 m

✓


d1960 m

✖


View Answer 980 m

For a given velocity of a projectile, the range is maximum when the angle of projection is___________________?


a30°

✖


b45°

✓


c90°

✖


d0°

✖


View Answer 45°

When a circular wheel rolls on a straight track, then the shape of body centrode and space centrode respectively are________________?


a straight line and parabola

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bstraight line and circle

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ccircle and straight line

✓


d circle and parabola

✖



The angular speed of a car while taking a circular turn of radius 100m at 36 km/hour, is_______________?


a0.1 radian/sec

✓


b1 radian/sec

✖


c100 radian/sec

✖


d1000 radian/sec

✖


View Answer 0.1 radian/sec

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