Strength of Materials In actual machines 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 mechanical advantage is less than velocity ratio mechanical advantage is equal to 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 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 Which of the following is not the unit of power ? kW (kilowatt) hp (horse power) kg m/sec kcal/kg sec. kW (kilowatt) hp (horse power) kg m/sec kcal/kg sec. ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The coefficient of friction depends on strength of surfaces shape of surfaces area of contact nature of surface strength of surfaces shape of surfaces area of contact nature of surface ANSWER DOWNLOAD EXAMIANS APP
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 Two coplanar couples having equal and opposite moments Balance each other Produce a moment of couple Produce a couple and an unbalanced force Are equivalent Balance each other Produce a moment of couple Produce a couple and an unbalanced force Are equivalent ANSWER DOWNLOAD EXAMIANS APP
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