Chemical Engineering Basics — Part 2 MCQs with Explanations

Cast iron is the correct answer to “Lead is poured into the joints between two __________ pipes.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Is corrosive is the correct answer to “Free oxygen is removed from boiler feed water, because it”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Dye penetrant is the correct answer to “Inspection of surface and sub-surface cracks in non-magnetic alloys is done by __________ testing method.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Temperature - entropy is the correct answer to “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”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Rain of molten lead is the correct answer to “In "Imperial Smelting Process" for extraction of zinc, zinc vapour thus produced is quenched in the external condenser by the use of the following :”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Saponification is the correct answer to “Milligram of KOH required to saponify 1 gm of oil is called its __________ number.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Integral is the correct answer to “A controller action in which there is a con-tinous relation between the values of controlled variable and the rate of change of conrolled output signal is called the __________ action.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Shaft encoder is the correct answer to “Angular displacement can be measured suitably by a”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Martensite formation is the correct answer to “Cold cracking in the heat affected zone of a high strength steel weld can take place because of the”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Small punches, broaches reamers and springs is the correct answer to “Which of the following are made out of the carbon steel having carbon content of 0.9 to 1%”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

5CaO . 3Al2O3 is the correct answer to “Alumina, silica, lime and iron oxide are the basic raw material for the manufacture of portland cement. The component of Portland cement which first hardens is”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Prevent the back flow of water is the correct answer to “Function of feed check valve in a boiler is to”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

High carbon steel is the correct answer to “Cold chiesel & hammers are made of”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Low pounhg temperature is the correct answer to “In a casting, cold shut defect is caused by”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Less is the correct answer to “Capacity & power requirement for an air compressor working at high altitude compared to sea-level will be”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Sequence of operation to be performed is the correct answer to “Routing in production, planning & control is concerned with the”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Increasing the concentration of copper sulphate solution is the correct answer to “The emf of a Deniell cell Zn | Zn 2+ || Cu 2+ | Cu can be increased by”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Heat rejection is lower is the correct answer to “For the same heat input & compression ratio, efficiency of Otto cycle is higher than that of diesel cycle, because in Otto cycle.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

NaOH is the correct answer to “In the Bayer's process, bauxite is digested under pressure using”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Tensile is the correct answer to “__________ forces do not act in case of fluids.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Hammering is the correct answer to “Powder metallurgy process does not make metal powder by”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Electromagnetic is the correct answer to “Circulation of liquid metal (i.e. molten sodium) in a liquid metal cooled nuclear reactor is done by a/an __________ pump.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Carbides is the correct answer to “Dies for wire drawing are generally made of”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Decreases & increases is the correct answer to “When the wet steam is throttled but still remains wet at the exit of the throttle valve, then its temperature & dryness fraction respectively”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Both (A) & (B) is the correct answer to “Which of the following is an example of stress corrosion”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Initiation of crack from below the surface does not occur is the correct answer to “Which of the following is not a characteristic observed in material failure by fatigue fracture”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

2000 is the correct answer to “While the oxy-acetylene flame produces a temperature of 3200°C, the temperature produced by oxy-hydrogen flame is about __________ °C.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Fluid pressure is the correct answer to “The total frictional resistance to fluid flow does not depend upon the”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

None of these is the correct answer to “Which of the following is a unit of time”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Hollow ram is used for indirect extrusion is the correct answer to “In extrusion of metals, which of the following statement is true”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Sodium stearate is the correct answer to “__________ is the most suitable lubricant for drawing mild steel wires”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

A fine, highly dislocated and strong martensite is the correct answer to “Maraging steels derive their strength from the following mechanism:”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Hot compressed air is the correct answer to “Ignition of fuel in a diesel engine is by”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Calcium silicate is the correct answer to “Blast furnace slag is mainly molten”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Bernoulli's theorem is the correct answer to “Paint spray gun works on the principle of”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

90000 J is the correct answer to “For the irreversible reaction, C a + 2C = C a C 2 , ΔH°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”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Alumina is the correct answer to “__________ is the hardest oxide and is hence used where high wear resistance at high temperature is required.”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Cobalt, chromium & tungsten is the correct answer to “Principal alloying elements of cast tool alloys which have very high wear resistance & high temperature strength are”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Resistance welding is the correct answer to “Which of the following welding processes employs the highest welding temperature”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.

Feed water pump is the correct answer to “Which of the following is a boiler accessory i.e., not a boiler mounting”. This question is standard in competitive examination syllabi for Chemical Engineering Basics.