Mechanical Engi...

Too fast welding speed in arc welding would result in:

The ratio of clearance volume to the displacement volume of an R12 reciprocating compressor is 0.06. specific volume at inlet and outlet compressors are 0.03 and 0.01 m³/kg respectively. Volumetric efficiency of the compressor is:

In case of a slider crank mechanism, if the mass of slider = 1 kg, crank radius = 10 cm, length of the connecting rod = 40 cm, crank speed = 100 rad/s, then the inertia force at the zero crank angle (from Inner dead center) is equal to:

The probability of occurrence of an event A is 1/4 and the probability of occurrence of event B is 1/3. Considering the events are independent, the probability of A and B occurring simultaneously is α/β. The sum of α and β is _______

In a Hartnell governor mass of each ball is 2.5 kg. Maximum and minimum centrifugal forces on balls are 2000 N and 1000 N corresponding to radii 20 cm and 15 cm respectively. Length of vertical and Horizontal arms of ball-crank lovers are same, then spring stiffness in N/cm?

For a 2D - flow, the stream line passing through a point A(1,1) has the equation xy = 1. In the neighborhood of A, the equipotential line passing through A is given by

Let A be a 3 × 3 matrix with trace (A) = 3 and det (A) = 2. If 1 is an eigenvalue of A, then the eigenvalues of the matrix A² – 2I are:

A 5 cm diameter jet of water having a velocity of 10 m/s impinges normally on a flat vertical plate which is moving away from the jet with a velocity of 5 m/s as shown in the figure.  What is the magnitude of the force exerted by the jet on the plate?

The rate of heat transfer between an electric motor and its surroundings is given by e^-t - 1.

where t is in seconds and Q is in kW. The shaft of the motor rotates at a speed of 200 rad/s and applies a torque of 20 N-m on the load. The motor draws a constant electrical power input of 5 kW. The time rate of change of energy (kW) of the motor is given by: