Two coplanar couples having equal and opposite moments

Strength of Materials
Two coplanar couples having equal and opposite moments

Produce a moment of couple

Are equivalent

Produce a couple and an unbalanced force

Balance each other

Produce a moment of couple

Are equivalent

Produce a couple and an unbalanced force

Balance each other

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Strength of Materials
In ideal machines

mechanical advantage is greater than velocity ratio

mechanical advantage is unity

mechanical advantage is equal to velocity ratio

mechanical advantage is less than velocity ratio

mechanical advantage is greater than velocity ratio

mechanical advantage is unity

mechanical advantage is equal to velocity ratio

mechanical advantage is less than velocity ratio

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Strength of Materials
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate

2.5 cm

1.5 cm

0.5 cm

1.0 cm

2.5 cm

1.5 cm

0.5 cm

1.0 cm

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Strength of Materials
Which of the following is not a vector quantity

acceleration

weight

force

velocity

acceleration

weight

force

velocity

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Strength of Materials
According to Lami's theorem

Three forces acting at a point will be in equilibrium

If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Three forces acting at a point can be represented by a triangle, each side being proportional to force

Three forces acting at a point will be in equilibrium

If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

If three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two

Three forces acting at a point can be represented by a triangle, each side being proportional to force

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Strength of Materials
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve

catenary

elliptical

parabola

hyperbola

catenary

elliptical

parabola

hyperbola

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Strength of Materials

Strength of Materials Two coplanar couples having equal and opposite moments

Strength of Materials In ideal machines

Strength of Materials From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate

Strength of Materials Which of the following is not a vector quantity

Strength of Materials According to Lami's theorem

Strength of Materials A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve

Strength of Materials
Two coplanar couples having equal and opposite moments

Strength of Materials
In ideal machines

Strength of Materials
From a circular plate of diameter 6 cm is cut out a circle whose diameter is a radius of the plate. Find the e.g. of the remainder from the center of circular plate

Strength of Materials
Which of the following is not a vector quantity

Strength of Materials
According to Lami's theorem

Strength of Materials
A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve