Strength of Materials A framed structure is perfect if it contains members equal to (where n = number of joints in a frame) n-l 2n-3 2n-l n-2 n-l 2n-3 2n-l n-2 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 Wtan(a-<)>) Wsin(a + <(>) Wcos(a + ) Wtan(a + <)>) Wtan(a-<)>) Wsin(a + <(>) Wcos(a + ) Wtan(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 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 20 kg, + ve sense ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In the lever of third order, load W, effort P and fulcrum F are oriented as follows P between W and F W, P and F all on one side W between P and F F between W and P P between W and F W, P and F all on one side W between P and F F between W and P ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In actual machines mechanical advantage is less than velocity ratio mechanical advantage is unity mechanical advantage is greater than velocity ratio mechanical advantage is equal to velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is unity mechanical advantage is greater than velocity ratio mechanical advantage is equal to velocity ratio 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 double four times same half double four times same half ANSWER DOWNLOAD EXAMIANS APP
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