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 + <)>) Wsin(a + <(>) Wcos(a + ) Wtan(a-<)>) Wtan(a + <)>) Wsin(a + <(>) Wcos(a + ) Wtan(a-<)>) ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Coefficient of friction is the 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 angle between normal reaction and the resultant of normal reaction and the limiting friction ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In actual machines mechanical advantage is less than velocity ratio mechanical advantage is equal to velocity ratio mechanical advantage is unity mechanical advantage is greater than velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is equal to velocity ratio mechanical advantage is unity mechanical advantage is greater than velocity ratio ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Effect of a force on a body depends upon All of the listed here magnitude direction position or line of action All of the listed here magnitude direction position or line of action ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Which of the following is not the unit of energy kg m wattr kcal watt hours kg m wattr kcal watt hours ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The M.I. of hollow circular section about a central axis perpendicular to section as compared to its M.I. about horizontal axis is four times double same half four times double same half ANSWER DOWNLOAD EXAMIANS APP
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