Applied Mechanics and Graphic Statics Archives | Page 6 of 12 | AnsweringExams.Com

The condilion for a lifting machine to be reversible is that its efficiency should be_________________?

August 13, 2021January 18, 2019 by admin

The condilion for a lifting machine to be reversible is that its efficiency should be_________________?

A. less than 50%
B. more than 50%
C. more than 66.67%
D. equal to 100%

In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is_____________________?

June 4, 2021January 18, 2019 by admin

In a lifting machine with efficiency 60%, an effort of 200 N is required to raise a load of 6 kN. The velocity ratio of the machine is_____________________?

A. 30
B. 50(Correct)
C. 60
D. 80

A system of copianar forces acting on a rigid body can be reduced to________________?

June 4, 2021January 18, 2019 by admin

A system of copianar forces acting on a rigid body can be reduced to________________?

A. one force only
B. one couple only
C. one force and one couple only(Correct)
D. none of the above

Force polygon method is applicable for_____________________?

June 4, 2021January 18, 2019 by admin

Force polygon method is applicable for_____________________?

A. any copianar force system
B. a system of parallel forces only
C. concurrent copianar force system(Correct)
D. non-concurrent copianar force system

The diagram showing the point of application and line of action of forces in their plane is called____________________?

June 4, 2021January 18, 2019 by admin

The diagram showing the point of application and line of action of forces in their plane is called____________________?

A. vector diagram
B. space diagram(Correct)
C. force diagram
D. funicular diagram

The bending moment in an arch is proportional to___________________?

June 4, 2021January 18, 2019 by admin

The bending moment in an arch is proportional to___________________?

A. vertical ordinate of funicular polygon
B. vertical ordinate of the arch
C. intercept between the arch axis and the funicular polygon(Correct)
D. none of these

An ordinate in a funicular polygon represents__________________?

June 4, 2021January 18, 2019 by admin

An ordinate in a funicular polygon represents__________________?

A. shear force
B. resultant force
C. bending moment(Correct)
D. equilibrium

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 ?

June 4, 2021January 18, 2019 by admin

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 ?

A. howe truss
B. king post truss
C. fink truss(Correct)
D. warren truss

The number of funicular polygons which can be drawn to pass through two specified points in the space diagram are__________________?

June 4, 2021January 18, 2019 by admin

The number of funicular polygons which can be drawn to pass through two specified points in the space diagram are__________________?

A. zero
B. 1
C. 2
D. infinity(Correct)

If the given forces P,, P2, P3 and P4 are such that the force polygon does not close, then the system will___________________?

June 4, 2021January 18, 2019 by admin

If the given forces P,, P2, P3 and P4 are such that the force polygon does not close, then the system will___________________?

A. be in equilibrium
B. always reduce to a resultant force(Correct)
C. always reduce to a couple
D. both (A) and (C)