Strength of Materials In actual machines mechanical advantage is equal to velocity ratio mechanical advantage is unity mechanical advantage is less than velocity ratio mechanical advantage is greater than velocity ratio mechanical advantage is equal to velocity ratio mechanical advantage is unity mechanical advantage is less than velocity ratio mechanical advantage is greater than velocity ratio 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 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 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 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 ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The effort required to lift a load W on a screw jack with helix angle a and angle of friction<="" div=""> Wsin(a + <(>) Wcos(a + ) Wtan(a + <)>) Wtan(a-<)>) Wsin(a + <(>) Wcos(a + ) Wtan(a + <)>) Wtan(a-<)>) ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials If three forces acting in different planes can be represented by a triangle, these will be in partial equilibrium unpredictable non-equilibrium full equilibrium partial equilibrium unpredictable non-equilibrium full equilibrium ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Kinetic 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 Tangent of 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 in motion The friction force acting when the body is just about to move Tangent of angle between normal reaction and the resultant of normal reaction and the limiting friction Ratio of limiting friction and normal reaction ANSWER DOWNLOAD EXAMIANS APP
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