Theory of Machine Which of the following mechanism is obtained from lower pair? Pantograph Valve and valve gears All of these Gyroscope Pantograph Valve and valve gears All of these Gyroscope ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An imaginary circle which by pure rolling action, gives the same motion as the actual gear, is called Dedendum circle Clearance circle Addendum circle Pitch circle Dedendum circle Clearance circle Addendum circle Pitch circle ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Klein's construction can be used when Crank has non-uniform velocity Crank has uniform angular velocity and angular acceleration Crank has a uniform angular velocity Crank has uniform angular acceleration Crank has non-uniform velocity Crank has uniform angular velocity and angular acceleration Crank has a uniform angular velocity Crank has uniform angular acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a spring controlled governor, when the controlling force ____ as the radius of rotation increases, it is said to be a stable governor. Decreases None of the listed here Increases Remains constant Decreases None of the listed here Increases Remains constant ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is false statement in respect of differences between machine and structure? Efficiency of machines as well as structures is below 100 % In machines, relative motion exists between its members, whereas same does not exist in case of structures Machines modify movement and work, whereas structures modify forces Machines transmit mechanical work, whereas structures transmit forces Efficiency of machines as well as structures is below 100 % In machines, relative motion exists between its members, whereas same does not exist in case of structures Machines modify movement and work, whereas structures modify forces Machines transmit mechanical work, whereas structures transmit forces ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 90° + φ α = 45° + φ/2 α = 45° - φ/2 α = 90° - φ α = 90° + φ α = 45° + φ/2 α = 45° - φ/2 α = 90° - φ ANSWER DOWNLOAD EXAMIANS APP
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