Theory of Machine A system of masses rotating in different parallel planes is in dynamic balance if the Resultant force is equal to zero Resultant force and resultant couple are both equal to zero Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant couple is equal to zero Resultant force is equal to zero Resultant force and resultant couple are both equal to zero Resultant force is numerically equal to the resultant couple, but neither of them need necessarily be zero Resultant couple is equal to zero ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Watt’s mechanism Peaucellier’s mechanism Grasshopper mechanism Robert’s mechanism Watt’s mechanism Peaucellier’s mechanism Grasshopper mechanism Robert’s mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In involute gears, the pressure angle is Always constant Dependent on the size of gears Always variable Dependent on the size of teeth Always constant Dependent on the size of gears Always variable Dependent on the size of teeth ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine For fluctuating loads, well suited bearing is Needle roller bearing Roller bearing Ball bearing Thrust bearing Needle roller bearing Roller bearing Ball bearing Thrust bearing ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Governor is used in automobile to Maximize the fuel economy Limit the vehicle speed Maintain constant engine speed Decrease the variation of speed Maximize the fuel economy Limit the vehicle speed Maintain constant engine speed Decrease the variation of speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Hammer blow Varies inversely with the square of the speed Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. Varies as the square root of the speed Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses Varies inversely with the square of the speed Is the maximum horizontal unbalanced force caused by the mass provided to balance the reciprocating masses. Varies as the square root of the speed Is the maximum vertical unbalanced force caused by the mass added to balance the reciprocating masses ANSWER DOWNLOAD EXAMIANS APP
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