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°


d


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


bstraight line and circle


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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