Search
.Management Sciences
Category: Applied Mechanics and Graphic Statics
In which of the following trusses, the method of substitution is required for determining the forces in all the members of the truss by graphic statics ?
0
A. howe truss
B. king post truss
C. fink truss
D. warren truss
Force polygon method is applicable for_____________________?
A. any copianar force system
B. a system of parallel forces only
C. concurrent copianar force system
D. non-concurrent copianar force system
Two circular discs of same weight and thickness are made from metals having different densities. Which disc will have the larger rotational inertia about its central axis ?
A. disc with larger density
B. disc with smaller density
C. both discs will have same rotational inertia
D. none of the above
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__________________?
A. 1/4
B. 1/3
C. 1/2
D. 1/5
Assume g = 10 m/sec2
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
B. 5 m/sec and 0
C. 5 V3 m/sec and 0
D. 5 and 5V3 m/sec
The maximum value of the horizontal range for a projectile projected with a velocity of 98 m/sec is__________________?
A. 98 m
B. 490 m
C. 980 m
D. 1960 m
One end of an elastic string of natural length / and modulus X is kept fixed while to the other end is attached a particle of mass m which is hanging freely under gravity. The particle is pulled down vertically through a distance x, held at rest and then released. The motion is___________________?
A. a simple harmonic motion
B. a rectilinear motion with constant speed
C. a damped oscillatory motion
D. none of the above
Recent Comments