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 10 kg, + ve sense 20 kg, – ve sense 20 kg, + ve sense 10 kg, – ve sense 10 kg, + ve sense 20 kg, – ve sense 20 kg, + ve sense 10 kg, – ve sense ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Pick up wrong statement about friction force for dry surfaces. Friction force is proportional to velocity of sliding independent of the area of contact surfaces proportional to normal load between the surfaces dependent on the materials of contact surface proportional to velocity of sliding independent of the area of contact surfaces proportional to normal load between the surfaces dependent on the materials of contact surface ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The centre of percussion of a solid cylinder of radius r resting on a horizontal plane will be 3r/2 2r/3 r/2 r/A 3r/2 2r/3 r/2 r/A ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Coulomb friction is the friction between solids and liquids two dry surfaces two lubricated surfaces bodies having relative motion solids and liquids two dry surfaces two lubricated surfaces bodies having relative motion ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials If n = number of members andy = number of joints, then for a perfect frame, n = j-2 2/-3 (d)3/-2 (b)2j-l j-2 2/-3 (d)3/-2 (b)2j-l ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The center of gravity of a uniform lamina lies at All of these the bottom surface the center of heavy portion the mid point of its axis All of these the bottom surface the center of heavy portion the mid point of its axis ANSWER DOWNLOAD EXAMIANS APP
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