Mechanical Engineering
- 1701. What is real body?
- 1702. What is gray body?
- 1703. What is reciprocity relation for view factors?
- 1704. Define view factor (shape factor).
- 1705. What is Stefan–Boltzmann law?
- 1706. What is Kirchhoff’s law of radiation?
- 1707. What is transmissivity?
- 1708. What is reflectivity?
- 1709. What is absorptivity?
- 1710. Define emissivity.
- 1711. Define emissive power.
- 1712. What is blackbody radiation?
- 1713. What is electromagnetic spectrum?
- 1714. Define thermal radiation.
- 1715. What is dropwise condensation?
- 1716. What is film condensation?
- 1717. What are the types of condensation?
- 1718. What is condensation?
- 1719. Define Leidenfrost point.
- 1720. What is pool boiling curve?
- 1721. What is critical heat flux?
- 1722. What is film boiling?
- 1723. What is nucleate boiling?
- 1724. What is boiling?
- 1725. What is buoyancy force?
- 1726. What is Boussinesq approximation?
- 1727. What is the difference between free and forced convection?
- 1728. What are typical Nusselt number correlations for natural convection?
- 1729. What is the characteristic length in convection problems?
- 1730. What factors influence natural convection heat transfer?
- 1731. What are examples of natural convection systems?
- 1732. What is Rayleigh number?
- 1733. Define Grashof number.
- 1734. What is natural convection?
- 1735. What are the main applications of forced convection?
- 1736. What is the Dittus-Boelter equation used for?
- 1737. What is thermal entrance length?
- 1738. What is hydrodynamic entrance length?
- 1739. What are correlations for turbulent forced convection?
- 1740. What are correlations for laminar forced convection?
- 1741. What is the relationship between Nusselt, Reynolds, and Prandtl numbers?
- 1742. What is Graetz number?
- 1743. What is Nusselt number?
- 1744. What is Reynolds number?
- 1745. Define Prandtl number.
- 1746. What is velocity boundary layer?
- 1747. What is thermal boundary layer?
- 1748. What is boundary layer in convection?
- 1749. What factors affect convective heat transfer?
- 1750. What is the convective heat transfer coefficient?
- 1751. What is Newton’s law of cooling?
- 1752. What is forced convection?
- 1753. What is free (natural) convection?
- 1754. Define convection.
- 1755. What is the difference between long and short fins?
- 1756. What is heat transfer rate from a fin?
- 1757. What are applications of fins?
- 1758. What is insulated tip fin?
- 1759. What is an infinitely long fin?
- 1760. Define fin effectiveness.
- 1761. Define fin efficiency.
- 1762. What are the types of fins?
- 1763. What is the purpose of fins?
- 1764. What are fins?
- 1765. What is isotropic material?
- 1766. What is anisotropic material?
- 1767. What factors affect heat conduction?
- 1768. What is critical radius of insulation?
- 1769. What is conduction through a sphere?
- 1770. What is conduction through a hollow cylinder?
- 1771. What is contact resistance?
- 1772. What is a heat flow analogy to electrical circuits?
- 1773. What is the concept of thermal resistance in a composite wall?
- 1774. Derive the heat conduction equation for a plane wall.
- 1775. What are the assumptions in one-dimensional heat conduction?
- 1776. What is temperature distribution?
- 1777. What are boundary conditions in conduction?
- 1778. Define thermal resistance.
- 1779. What is thermal diffusivity?
- 1780. What is one-dimensional heat conduction?
- 1781. Define unsteady-state (transient) conduction.
- 1782. Define steady-state conduction.
- 1783. What are the units of thermal conductivity?
- 1784. State Fourier’s law of heat conduction.
- 1785. What is thermal equilibrium?
- 1786. What is temperature gradient?
- 1787. What is thermal conductivity?
- 1788. What is heat flux?
- 1789. Define radiation.
- 1790. Define convection.
- 1791. Define conduction.
- 1792. What are the modes of heat transfer?
- 1793. How is heat transfer different from thermodynamics?
- 1794. What is heat transfer?
- 1795. How does Mechanics of Materials relate to real-world engineering design?
- 1796. Why is stress analysis important in motor shafts?
- 1797. What is the role of mechanics in transformer core design?
- 1798. How is Mechanics of Materials applied in electrical machines?
- 1799. What is the importance of safety factor?
- 1800. What are the basic steps in designing machine elements?