Strength of Materials A number of forces acting at a point will be in equilibrium if Sum of resolved parts in any two perpendicular directions are both zero Two resolved parts in two directions at right angles are equal All of them are inclined equally Their total sum is zero Sum of resolved parts in any two perpendicular directions are both zero Two resolved parts in two directions at right angles are equal All of them are inclined equally Their total sum is zero 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 20 kg, - ve sense 10 kg, - ve sense 10 kg, + ve sense 20 kg, + ve sense 20 kg, - ve sense 10 kg, - ve sense ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The unit of power in S.I. units is joule watt newton meter kilogram meter/sec. joule watt newton meter kilogram meter/sec. ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In ideal machines 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 mechanical advantage is less than velocity ratio ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Which of the following is not the unit of power ? kW (kilowatt) hp (horse power) kcal/kg sec. kg m/sec kW (kilowatt) hp (horse power) kcal/kg sec. kg m/sec 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) n-l 2n-3 n-2 2n-l n-l 2n-3 n-2 2n-l ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS