• Q : Finding fuel consumption....
    Mechanical Engineering :

    The compressor ratio is 11, and the turbine inlet temperature is 1200 K. The fuel used as a heating value of 43,000 kj/kg.

  • Q : Determining viscous damping coefficient....
    Mechanical Engineering :

    A Mass-Spring-Damper is tested to determine the value of the viscous damping coefficient c. Assume k = 10 lb/ft and m = 2 slug.

  • Q : Automobile pump power....
    Mechanical Engineering :

    Gasoline is pumped from the gas tank of an automobile to the carburetor through a 10 ft long, 1/4" diameter fuel line of steel tubing.

  • Q : Finding vertical distance in pipe line system....
    Mechanical Engineering :

    The total length of the 3" pipe is 100 meters. For the 6" pipe, it is 300 meters.

  • Q : Boundary layer theory....
    Mechanical Engineering :

    Calculate the power required to overcome the skin friction drag on the keel of a sailing dingy moving through water at 2m/s.

  • Q : Superheated water vapour....
    Mechanical Engineering :

    Farenheit is allowed to cool at a constant volume until the temperature drops to 250 degrees Farenheit.

  • Q : Pressure cooker and mass flow rate....
    Mechanical Engineering :

    Steam is leaving a pressure cooker whose operating pressure is 30 psi. It is observed that the amount of liquid in the cooker has decreased.

  • Q : Mechanical vibration analysis....
    Mechanical Engineering :

    If a force of 25sin3t is applied to m2, how do I find the value of the response if m1=m2=1 slug, k1=10lb/ft and k2=30lb/ft?

  • Q : Mass of inertia and angular acceleration....
    Mechanical Engineering :

    Two slender rods are welded together at right angles and released from rest as shown. The two welded bars rotate freely around point C.

  • Q : Thermodynamics-heat pump....
    Mechanical Engineering :

    A heat pump with a COP (coefficient of performance) of 2.8 is used to heat an air-tight house. When running, the heat pump consumes 5 kW of power.

  • Q : Calculating maximum velocity....
    Mechanical Engineering :

    The pair of blocks, which are connected by a cord, are released from rest when the spring is unstretched.

  • Q : Backspin friction and velocity....
    Mechanical Engineering :

    A 1.2ft diameter ball is thrown onto a rough surface, such that it has a velocity of 6ft/s and a backspin angular velocity of w.

  • Q : Calculating second moment of area....
    Mechanical Engineering :

    Calculate the second moment of area of the bar and use this to estimate the modulus of a composite material that will just meet the design specification.

  • Q : Impulse and reaction turbines....
    Mechanical Engineering :

    An impulse air turbine rotor with a blade speed (U) of 300 m/s is measured to have a relative rotor inlet velocity (W_1) of 750 m/s.

  • Q : Problem on moment of inertia and translational motion....
    Mechanical Engineering :

    A four-wheel truck that has a mass of 5,000 kg accelerates forward. The coefficient of friction for the front and back wheels is 0.2 and 0.4.

  • Q : Moment of inertia and translational motion....
    Mechanical Engineering :

    Determine the mass moment of inertia about the y axis. The thin plate has a mass of 0.1 slug and thickness of 0.05 in.

  • Q : Determining optimum blade speed ratio....
    Mechanical Engineering :

    The steam from the nozzles of a single wheel impulse turbine discharges with a velocity of 600 m/s at an angle of 20 degrees.

  • Q : Turbomachinery-reaction turbines....
    Mechanical Engineering :

    Sketch the fully annotated velocity triangles for a Parsons turbine stage. Use your sketch to show that the specific work produced per stage.

  • Q : Turbomachinery and reaction turbines....
    Mechanical Engineering :

    Steam at 15 bar and 350 degrees C is expanded through a 50% reaction turbine to a pressure of 0.14 bar.

  • Q : Problem on moment of inertia....
    Mechanical Engineering :

    A large Yo-Yo that weighs 50 lb is released from rest. Its moment of inertia, I is 0.24 slug-ft2. How long does it take the center of the Yo-Yo to fall 4 ft?

  • Q : Angular velocity-stepped disk and slender rods....
    Mechanical Engineering :

    The slender bar with a mass of 4 kg is released from rest at an angle of 35 degrees. What is the angular velocity of the bar when it is vertical?

  • Q : Manufacturing process factors....
    Mechanical Engineering :

    Which of the advanced machining process causes thermal damage? What is the consequence of such damage to work pieces?

  • Q : Single degree of freedom vibration problem....
    Mechanical Engineering :

    For a vertical spring/damper system with mass (M) and a harmonic forcing function, Fmax Cos [omega x t].

  • Q : Determining hoop stress....
    Mechanical Engineering :

    How many layer of winding can be decreased so that the part will be still safe? Or if not, how many more layer needed to be added?

  • Q : Calculating tensile stress in rod....
    Mechanical Engineering :

    A 3.14insq. cross sectional area steel tension rod carries a load of 3140lbf. How to calculate the tensile stress in the rod?

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