A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will

Strength of Materials
A semi-circular disc rests on a horizontal surface with its top flat surface horizontal and circular portion touching down. The coefficient of friction between semi-cricular disc and horizontal surface is i. This disc is to be pulled by a horizontal force applied at one edge and it always remains horizontal. When the disc is about to start moving, its top horizontal force will

slant down towards direction of pull

remain horizontal

slant up towards direction of pull

unpredictable

slant down towards direction of pull

remain horizontal

slant up towards direction of pull

unpredictable

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Strength of Materials
The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is

half

same

four times

double

half

same

four times

double

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

volume

density

mass

acceleration

volume

density

mass

acceleration

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Strength of Materials
D Alembert’s principle is used for

designing safe structures

determining stresses in the truss

reducing the problem of kinetics to equivalent statics problem

stability of floating bodies

designing safe structures

determining stresses in the truss

reducing the problem of kinetics to equivalent statics problem

stability of floating bodies

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Strength of Materials
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of

independence of forces

balance of force

resolution of forces.

forces

independence of forces

balance of force

resolution of forces.

forces

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Strength of Materials
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one

parabola

circle

ellipse

hyperbola

parabola

circle

ellipse

hyperbola

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Strength of Materials

Strength of Materials The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is

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

Strength of Materials D Alembert’s principle is used for

Strength of Materials The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of

Strength of Materials Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one

Strength of Materials
The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is

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

Strength of Materials
D Alembert’s principle is used for

Strength of Materials
The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of

Strength of Materials
Which of the following is the locus of a point that moves in such a manner that its distance from a fixed point is equal to its distance from a fixed line multiplied by a constant greater than one