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 20 kg, + ve sense 10 kg, - ve sense 20 kg, - ve sense 10 kg, + ve sense 20 kg, + ve sense 10 kg, - ve sense ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Coefficient of friction is the angle between normal reaction and the resultant of normal reaction and the limiting friction ratio of limiting friction and normal reaction the friction force acting when the body is just about to move the friction force acting when the body is in motion angle between normal reaction and the resultant of normal reaction and the limiting friction ratio of limiting friction and normal reaction the friction force acting when the body is just about to move the friction force acting when the body is in motion ANSWER DOWNLOAD EXAMIANS APP
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 remain horizontal unpredictable slant down towards direction of pull slant up towards direction of pull remain horizontal unpredictable slant down towards direction of pull slant up towards direction of pull ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Forces are called coplanar when all of them acting on body lie in one plane different planes perpendicular planes one point one plane different planes perpendicular planes one point ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The C.G. of a right circular solid cone of height h lies at the following distance from the base h/4 h/2 J/3 h/6 h/4 h/2 J/3 h/6 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) n-2 2n-l n-l 2n-3 n-2 2n-l n-l 2n-3 ANSWER DOWNLOAD EXAMIANS APP
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