Strength of Materials The product of either force of couple with the arm of the couple is called moment of the couple resultant couple resulting couple moment of the forces moment of the couple resultant couple resulting couple moment of the forces ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A number of forces acting at a point will be in equilibrium if Two resolved parts in two directions at right angles are equal Their total sum is zero Sum of resolved parts in any two perpendicular directions are both zero All of them are inclined equally Two resolved parts in two directions at right angles are equal Their total sum is zero Sum of resolved parts in any two perpendicular directions are both zero All of them are inclined equally ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials According to principle of transmissibility of forces, the effect of a force upon a body is Minimum when it acts at the C.G. of the body The same at every point in its line of action Maximum when it acts at the center of gravity of a body Different at different points in its line of action Minimum when it acts at the C.G. of the body The same at every point in its line of action Maximum when it acts at the center of gravity of a body Different at different points in its line of action ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Center of gravity of a solid cone lies on the axis at the height three-eighth of the total height above the base one-half of the total height above base one-fourth of the total height above base one-third of the total height above base three-eighth of the total height above the base one-half of the total height above base one-fourth of the total height above base one-third of the total height above base ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Pick up wrong statement about friction force for dry surfaces. Friction force is proportional to normal load between the surfaces proportional to velocity of sliding independent of the area of contact surfaces dependent on the materials of contact surface proportional to normal load between the surfaces proportional to velocity of sliding independent of the area of contact surfaces dependent on the materials of contact surface ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The resultant of the following three couples 20 kg force, 0.5 m arm, + ve sense 30 kg force, 1 m arm, – ve sense 40 kg force, 0.25 m arm, + ve sense having arm of 0.5 m will be 20 kg, – ve sense 10 kg, – ve sense 10 kg, + ve sense 20 kg, + ve sense 20 kg, – ve sense 10 kg, – ve sense 10 kg, + ve sense 20 kg, + ve sense ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS