Chemical Engineering Basics Quiz 5

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

Exposure to __________ accelerates the degradation of plastics?

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

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

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

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

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

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

Globular form of cementite is formed during the __________ process ?

Gas turbine normally employs a constant ________ cycle?

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 ?

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

Fahrenheit and Centigrade scales have the same readings at _______?

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

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

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___________?

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

Ganister contains maximum percentage of__________?

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

For an ideal gas, Cp ? Cv is______?

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

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

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

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 ?

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

Energy of the sun arises mainly from ___________ reactions?

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

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

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

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

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 ?

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

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

Fatigue resistance of a material is measured by the _______?

Function of gear box is to______?

Fine grained steels have______?

Eutectoid composition of carbon steel at room temperature is_____?

Enzymes belong to the category of_______?

Glass reacts with_____?

Fire refining process is employed in case of_____?

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

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

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

Gantt charts are used for streamlining the___________?

Function of fusible plug in a boiler is to ________?

Fog is an example of colloidal system of_____?

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

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

Faraday?s law of electrolysis is related to the______?

Fibre glass is a composite material of__________?