Chemical Engineering Basics Questions

• Which of the following is not an explosive?
• Chromium molybdenum steel can not be welded using __________ welding.
• Resistance of an electrical conductor is proportional to its (where, l = length and A = cross-sectional area of the conductor)
• Absolute zero pressure can be attained at a temperature of
• Area under the stress-strain curve upto the __________ is referred to as the modulus of resilience.
• The softness or hardness of a grinding wheel depends upon the type & amount of bonding material used. For general purpose cutter grinding __________ grinding wheel is normally used.
• Electrical conductivities of semi-conductors are of the order of __________ ohm/cm.
• Friction factor for fluid flow in pipe does not depend upon the
• Fog is an example of colloidal system of
• The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be
• The product out from a cupola is called
• In condensers used in thermal power plants, steam is normally used in shell side and cooling water on the tube side, because of the reason that
• Which one of the following is incombustible?
• __________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.
• Machinability of hard alloys and tool steels is improved by
• If a nuclear reactor produces more fissile nuclear fuel than it consumes, then it is called a __________ reactor.
• Maxwell's thermodynamic relations applies to the
• Evaporative cooling process employs a combination of cooling and humidification in which the
• Corrosion of metals can not be prevented by its
• Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect of free convection over a vertical flat plate as