Home
About Us
Contact Us
Privacy Policy
Search
Home
→
Chemical Engineering Basics
→
_______________ number determines whether the fluid flow in an open channel is super-critical, critical or sub-critical ?
Related MCQs
Satellite is a __________ material?
Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is__________?
Cascade control is__________?
For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = – 60000 J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be__________?
Hardening of steel is not possible, unless it is heated __________ critical point ?
Strain hardening effect in metals subjected to cold working is due to the __________ mechanism?
Atomic __________ of an element is a whole number ?
Which of the following heat treatment processes is usually applied to castings ?
A material is capable of resisting softening at high temperature, because of its property termed as__________?
When an isolated thermodynamic system executes a process __________?
The main constituent of bones is __________?
Which of the following alloying elements is present in maximum percentage in high speed steel ?
Baffles provided on the shell side of a shell and tube heat exchanger are meant for __________?
While the bin cards are used in the effective stores management, the queuing theory is associated with the __________ time ?
__________ iron is produced by the annealing of white cast iron?
With increase in impurities in metals, their corrosion resistances__________?
In the blast furnace, incorporation of water vapour in the blast gives the following effect ?
The product out from a cupola is called __________?
The transition temperature at which all the ferromagnetic materials become paramagnetic materials is termed as the ‘Curie temperature’. Its value for cobalt is __________ °C?
Super conduction in metals is observed at a temperature of __________ °K?
Maximum amount of thermal radiation is emitted at all wavelengths at any specified temperature by a/an __________ body?
Which of the following is the largest quantum of pressure ?
Absolute zero, pressure will occur, when the molecular momentum of the system becomes zero. A liquid will cease to exist as liquid at__________?
In case of water (Prandtl number ≈ 6) flowing over a flat plate heated over the entire length, the thermal boundary layer thickness as compared to hydrodynamic boundary layer thickness is ?
The maximum stress below which a material can withstand an infinite number of cycle of stress, is termed as the__________?
Hot working of lead is carried out at __________?
The Al2O3 content of cryolite in Hall-Heroult cell is maintained between __________ percent ?
Fatigue resistance of a material is measured by the __________?
Ultimate strength in tension as compared to that in shear for steel is__________?
Dry saturated steam can be converted into super heated steam by__________?
Which of the following emissions in the exhaust gas of an I.C. engine causes the formation of photochemical smog ?
Dielectric__________?
Enzymes belong to the category of__________?
According to maximum shear stress failure criterion, yielding in material occurs, when the maximum shear stress is equal to __________ times the yield stress ?
Rankine cycle comprises of two isothermal and two __________ processes?
Moist air is cooled along the line of constant __________ , when it is passed over a cold & dry cooling coil, such that no condensation occurs ?
Alloy powder manufactured by the following process have spherical shapes ?
Glycerine is used as a coolant in cooling of some engines instead of water, because__________?
The product (s) of roasting of a sulphide ore is (are) ?
A jig is used while __________ a hole?
The heat treatment to which the steel wire containing > 0.25% carbon is subjected to is__________?
Gantt charts are used for streamlining the__________?
Thermodynamic cycle involved in the working of a thermal power plant is the __________ cycle ?
Faraday’s law of electrolysis is related to the__________?
Suitability of steel for its use in cable is judged by its strength in__________?
Change in volume of metals from absolute zero temperature to their melting points is__________?
Which of the following commonly used condenser tube materials has the lowest thermal conductivity ?
One ton of refrigeration is not equivalent to the heat removal rate of __________?
Gage pressure within a spherical droplet of a fluid is ‘p’. What will be gage pressure within a bubble of the same size & of the same fluid ?
In chemical dehumidification of air__________?
Fire refining process is employed in case of__________?
_______________ number determines whether the fluid flow in an open channel is super-critical, critical or sub-critical ?
A. Mach
B. Reynolds
C. Froude
D. Weber
Correct Answer:
Froude
✔
Last Updated:
February 10, 2019