Un-Answered Questions { Engineering }

What is the percentage of carbon in cast iron ?

609


What is coaxing ?

796


What is the difference between heat capacity and specific heat of a material ?

622


What do you understand by eutectic ?

651


What for zinc finds applications ?

629


Which reactor has no moderator ?

638


What do you understand by catenary cable ?

755


What does thermal diffusivity of metals signify.

647


While normal carburising and nitriding surface treatments increase fatigue strength, excessive treatment may decrease the fatigue strength. Why ?

661


What type of boiler does not need a steam drum ?

667


Which impurities form hard scale and which impurities soft scale ?

645


Why an increase in area is required to produce an increase of velocity in case of supersonic flow ?

613


What is endurance limit and what is its value for steel ?

669


Explain the difference between ferrite, austenite and graphite ?

627


What is the difference between isentropic process and throttlinglprocess ?

645