Strength of Materials The effort required to lift a load W on a screw jack with helix angle a and angle of friction Wtan(a + <)>) Wcos(a + ) Wtan(a-<)>) Wsin(a + <(>) Wtan(a + <)>) Wcos(a + ) Wtan(a-<)>) Wsin(a + <(>) 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 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 20 kg, + ve sense ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Limiting force of friction is the the friction force acting when the body is in motion The friction force acting when the body is just about to move 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 in motion The friction force acting when the body is just about to move Ratio of limiting friction and normal reaction Tangent of angle between normal reaction and the resultant of normal reaction and limiting friction ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A particle inside a hollow sphere of radius r, having coefficient of friction -rr can rest upto height of r/2 0.134 r r/% r/A r/2 0.134 r r/% r/A ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Two non-collinear parallel equal forces acting in opposite direction constitute a couple balance each other constitute a moment of couple constitute a moment constitute a couple balance each other constitute a moment of couple constitute a moment ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials A cable with a uniformly distributed load per horizontal metre run will take the following shape Straight line Elliptical Hyperbola Parabola Straight line Elliptical Hyperbola Parabola ANSWER DOWNLOAD EXAMIANS APP
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