• Q : Modulus of elasticity....
    Mechanical Engineering :

    A linear isotropic material has the shear modulus of elasticity G of 11.5*10^6 psi and the Poisson's constant v of 0.3.

  • Q : Finding principal stress....
    Mechanical Engineering :

    The state of plane stress at a point in a member is zx=-20MPa, zy=90MPa, txy=60MPa. How to find the principal stresses zx and zy?

  • Q : Determining rotating bending specimens endurance limit....
    Mechanical Engineering :

    How to determine the rotating bending specimen's endurance limit at 10^6 cycles?

  • Q : Determining endurance limit....
    Mechanical Engineering :

    How to determine the endurance limit for the part if the Marin modifying factors are: ka=0.887, kb=1, kc=0.889, kd=ke, kf=1?

  • Q : Midrange and amplitude components....
    Mechanical Engineering :

    A shaft is subjected to a completely reversed bending stress such that Xmax=40kpsi and Xmin=-40kpsi.

  • Q : Shear stress in weld....
    Mechanical Engineering :

    How to determine the shear stress in the weld for a shearing force of 15000 lbf?

  • Q : Determining fraction of radiation....
    Mechanical Engineering :

    Determine the fraction of the radiation leaving the base of the cylindrical enclosure shown attached that escapes through a coaxial ring.

  • Q : Analyzing planner equilibrium....
    Mechanical Engineering :

    The roof truss shown attached is roller and pin-joint supported at the right-hand and left-hand ends respectively and carries loads of 10kN, 8kN and 12 kN.

  • Q : Force required to punch a hole....
    Mechanical Engineering :

    Two co-axial shafts are to be connected by a flanged coupling having six 6mm diameter bolts equally spaced on a PCD of 200mm.

  • Q : Angular velocity and acceleration in trains and wheels....
    Mechanical Engineering :

    An engine flywheel initially rotating at 24 rev/min is accelerated uniformly for 3.8 seconds whilst rotating through 41 revolutions.

  • Q : Rigid bodies and newtons second law of motion....
    Mechanical Engineering :

    The mass is initially a distance of 2.16m above the floor level when it is released causing the mass to hit the floor 6.2s later.

  • Q : Maximum shearing stress on beam....
    Mechanical Engineering :

    Two full-size 2x6 inch planks are connected as shown by lag screws to form a beam which is subject to a vertical shear of 400 lb.

  • Q : Turbine thermal efficiency....
    Mechanical Engineering :

    Steam @ 10 MPa, 600 degrees celcius enters the first-stage turbine of an ideal Rankine cycle with reheat.

  • Q : Determining final velocity....
    Mechanical Engineering :

    An object whose mass is 1 lb has a velocity of 100 ft/s. How to determine the final velocity, in ft/s, if the kinetic energy of the object decreases.

  • Q : Findingtemperature of refrigerant....
    Mechanical Engineering :

    A closed vessel with a volume of 2 ft^3 contains 5 lb of Refrigerant 134a. A pressure sensor in the tank wall reads 71.39 lbf/in.^2 (gage).

  • Q : Determining mass of ammonia....
    Mechanical Engineering :

    Ammonia is stored in a tank with a volume of 0.21 m^3. How do I determine the mass, in kg, assuming saturated liquid at 20 deg C.

  • Q : Determining feasibility....
    Mechanical Engineering :

    If the cycle operates between reservoirs at 2400 and 1000 deg R, is the claim feasible?

  • Q : Problem on ideal rankine cycle....
    Mechanical Engineering :

    The enthalpy of the steam entering the turbine is 2509.1 kJ/kg and of the steam entering the pump is 151.53 kJ/kg.

  • Q : Heat pump for household....
    Mechanical Engineering :

    Ever wonder if you can build a machine to heat up your house using the heat from the outside environment? Well you'll need to start with the heat pump concept.

  • Q : Hazen-williams formula....
    Mechanical Engineering :

    The length of cast-iron pipe is to be 4200 ft., and the head causing flow is to be 12.6ft. After the pipe has been in service 5 years.

  • Q : Multi degree of freedom....
    Mechanical Engineering :

    There is no friction between m and m1. How would you determine the coordinates to describe the system and the equations of motion?

  • Q : Workout velocity and range of shell fired....
    Mechanical Engineering :

    Why is it possible to consider the vertical and horizontal motion of a projectile independently of each other.

  • Q : Compressive stress analysis....
    Mechanical Engineering :

    A circular cross sectional bar with a diameter of 3.25 inches is loaded with a uniform axial compressive load of 22,750 pounds.

  • Q : Motor coming to rest....
    Mechanical Engineering :

    A motor is running at 12 rpm and the switch is flipped and cuts the power. The rotor weighs 75 lbs.

  • Q : Working speed in rpm....
    Mechanical Engineering :

    A transmission shaft is fitted with a coupling that is secured by eight 20 mm diameter bolts pitched on a circle with a diameter of 225 mm.

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