Strength of Materials Two non-collinear parallel equal forces acting in opposite direction constitute a couple balance each other constitute a moment of couple constitute a moment constitute a couple balance each other constitute a moment of couple constitute a moment 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<="" div=""> Wcos(a + ) Wsin(a + <(>) Wtan(a-<)>) Wtan(a + <)>) Wcos(a + ) Wsin(a + <(>) Wtan(a-<)>) Wtan(a + <)>) ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Dynamic friction as compared to static friction is more may be less of more depending on nature of surfaces and velocity less same more may be less of more depending on nature of surfaces and velocity less same 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 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 unknown fluid metal will float in water density of metal can’t be determined metal is twice as dense as water metal is twice as dense as unknown fluid metal will float in water density of metal can’t be determined metal is twice as dense as water ANSWER DOWNLOAD EXAMIANS APP
Strength of Materials Which of the following is not the unit of power ? kg m/sec kW (kilowatt) hp (horse power) kcal/kg sec. kg m/sec kW (kilowatt) hp (horse power) kcal/kg sec. ANSWER DOWNLOAD EXAMIANS APP
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