Structural Engineering I MCQ with Answers

36) For a given velocity of a projectile, the range is maximum when the angle of projection is

Answer is:

45°

Explanation:

Angle of projection: Angle of projection is the angle, with the horizontal,at which the projectile is projected.

For a given velocity of a projectile, the range is maximum when the angle of projection is 45°.

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

37) The angle of projection at which the horizontal range and maximum height of a projectile are equal to

Answer is:

76°

Explanation:

Angle of projection: Angle of projection is the angle, with the horizontal,at which the projectile is projected.

The angle of projection at which the horizontal range and maximum height of a projectile are equal to 76°.

The angle of projection at which the horizontal range and maximum height of a projectile are equal to

38) The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is

Answer is:

980 m

39) A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in

Answer is:

10 sec

40) 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

Answer is:

36) For a given velocity of a projectile, the range is maximum when the angle of projection is

45°

37) The angle of projection at which the horizontal range and maximum height of a projectile are equal to

76°

38) The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is

980 m

39) A stone is thrown vertically upwards with a vertical velocity of 49 m/sec. It returns to the ground in

10 sec

40) 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

1/4