Strength of Materials A sample of metal weighs 219 gms in air, 180 gms in water, 120 gms in an unknown fluid. Then which is correct statement about density of metal metal is twice as dense as water metal will float in water density of metal can’t be determined metal is twice as dense as unknown fluid metal is twice as dense as water metal will float in water density of metal can’t be determined metal is twice as dense as unknown fluid ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of resolution of forces. balance of force independence of forces forces resolution of forces. balance of force independence of forces forces ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The center of percussion of the homogeneous rod of length L suspended at the top will be L/3 3L/4 2L/3 L/2 L/3 3L/4 2L/3 L/2 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 20 kg, – ve sense 10 kg, – ve sense 20 kg, + ve sense 10 kg, + ve sense 20 kg, – ve sense 10 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) kcal/kg sec. kg m/sec kW (kilowatt) hp (horse power) kcal/kg sec. kg m/sec ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials The unit of force in S.I. units is kilogram newton watt dyne kilogram newton watt dyne ANSWER DOWNLOAD EXAMIANS APP
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