Chemical Engineering Basics Quiz 5

Energy of the sun arises mainly from ___________ reactions?

Exposure to __________ accelerates the degradation of plastics?

Glycerine is used as a coolant in cooling of some engines instead of water, because_____?

Glass reacts with_____?

Gantt charts are used for streamlining the___________?

Enzymes belong to the category of_______?

Fine grained steels have______?

Electrometallurgy is not involved in the extraction of _____ from its ore?

Faraday?s law of electrolysis is related to the______?

Gross national product (GNP) means the total value of ________ in a country ?

Heat release during phase change is observed in case of a/an__________?

Friction factor for fluid flow in pipe does not depend upon the_________?

Fibre glass is a composite material of__________?

Hardening of steel is not possible, unless it is heated __________ critical point ?

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 ?

Heat flow across a hollow sphere of inner radius ?r1? and outer radius ?r2? is directly proportional to___________?

Elimination of brittleness resulting from welding of saw blades is done by ___________ of the welded portion ?

Gas turbine normally employs a constant ________ cycle?

For efficient performance of a blast furnace, the extent of reduction of Wustite (FeO) should be_____?

Frother is added in the froth floatation cell used in ore beneficiation to stabilise the air bubbles (i.e., froth), which will hold the ore particles, but it does not affect the floatability of minerals. Which of the following is not used as a frother ?

For a thermodynamic system undergoing a process, which of the following pairs best expresses the relationship similar to that expressed by the pressure volume plot ?

Fire refining process is employed in case of_____?

Function of fusible plug in a boiler is to ________?

For the irreversible reaction, Ca+ 2C = Ca C2 , ? 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___________?

For infinite parallel planes having emissivities ?1 & ?2, the interchange factor for radiation from surface 1 to surface 2 is given by___________?

Ferromagnetic materials owe their properties to ___________ inner sub-shells ?

For a spontaneous natural process at constant temperature and pressure, the free energy of the system always______?

Good design of the casing of a centrifugal pump aims at minimising the _____?

Eutectoid composition of carbon steel at room temperature is_____?

Heat required to raise the temperature of a body by 1 ?C is called its________?

Evaporative cooling process employs a combination of cooling and humidification in which the______?

Half life of a radioactive isotope corresponds to the time required for half of the ________ to decay ?

Euler number is defined as the ratio of inertia force to ________ force?

Fatigue resistance of a material is measured by the _______?

Force between the molecules of the same substance is called ________ force?

For an ideal gas, Cp ? Cv is______?

Ganister contains maximum percentage of__________?

Electrostatic separation of minerals from each other is based on their differences in the following property ?

Fahrenheit and Centigrade scales have the same readings at _______?

For separating small pieces of metal from engine oil of a car, the best separating technique is the _______ ?

For the Stoke?s law to be valid in the case of a falling sphere in a fluid, the_______?

Function of gear box is to______?

Globular form of cementite is formed during the __________ process ?

For preparation of porous bearings by powder metallurgy, preferred particle shape is_____?

For a first order chemical reaction, the concentration of the reactant decreases ___________ with time?

Factor of safety in machine design is defined as the ratio of ultimate stress to ______ stress ?

Fog is an example of colloidal system of_____?

Energy to be supplied to the radioactive nucleus for the emission of a neutron is _________ MeV?

For grinding of softer materials, the grinding wheel should have __________ grain size ?

For dynamic strain measurement, the Wheatstone bridge used is of _______ type ?