Strength of Materials A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) 2n-3 2n-l n-l n-2 2n-3 2n-l n-l n-2 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Limiting force of friction is the Ratio of limiting friction and normal reaction Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction The friction force acting when the body is just about to move the friction force acting when the body is in motion Ratio of limiting friction and normal reaction Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction 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 If a number of forces act simultaneously on a particle, it is possible Not a replace them by a single force To replace them by a single force through C.G. To replace them by a couple To replace them by a single force Not a replace them by a single force To replace them by a single force through C.G. To replace them by a couple To replace them by a single force ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A single force and a couple acting in the same plane upon a rigid body balance each other produce moment of a couple are equivalent cannot balance each other balance each other produce moment of a couple are equivalent cannot balance each other ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials If n = number of members andy = number of joints, then for a perfect frame, n = (d)3/-2 2/-3 (b)2j-l j-2 (d)3/-2 2/-3 (b)2j-l j-2 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 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
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