Strength of Materials Center of percussion is the point of metacentre the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis point of suspension the point of C.G. the point of metacentre the point of application of the resultant of all the forces tending to cause a body to rotate about a certain axis point of suspension the point of C.G. ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Which of the following do not have identical dimensions? Torque and energy Momentum and impulse Moment of a force and angular momentum Torque and work Torque and energy Momentum and impulse Moment of a force and angular momentum Torque and work 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 effort required to lift a load W on a screw jack with helix angle a and angle of friction Wcos(a + ) Wtan(a + <)>) Wtan(a-<)>) Wsin(a + <(>) Wcos(a + ) Wtan(a + <)>) Wtan(a-<)>) Wsin(a + <(>) ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials In actual machines mechanical advantage is equal to velocity ratio mechanical advantage is greater than velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is unity mechanical advantage is equal to velocity ratio mechanical advantage is greater than velocity ratio mechanical advantage is less than velocity ratio mechanical advantage is unity 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 half four times double same half four times double same ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS