Batch process is preferred over continuous process, when the (A) Product yields and quality cannot be achieved in continuous process, because of long residence time (B) Sales demand of product is not steady (C) Same equipment cannot be used for several processes of the same nature (D) All (A), (B) & (C)

Batch process is preferred over continuous process, when the
(A) Product yields and quality cannot be achieved in continuous process,
because of long residence time
(B) Sales demand of product is not steady
(C) Same equipment cannot be used for several processes of the same nature
(D) All (A), (B) & (C)
by

1 Answer

Answer :

(D) All (A), (B) & (C)
by

Related questions

Batch process is preferred over continuous process, when the (A) Product yields and quality cannot be achieved in continuous process, because of long residence time (B) Sales demand of product is not steady (C) Same equipment cannot be used for several processes of the same nature (D) All (A), (B) & (C)

Description : Batch process is preferred over continuous process, when the (A) Product yields and quality cannot be achieved in continuous process, because of long residence time (B) Sales demand of product is not steady (C) Same ... cannot be used for several processes of the same nature (D) All (A), (B) & (C)

Last Answer : (B) Sales demand of product is not steady

Sometimes, batch process is preferred over continuous process, when the product (A) Quality & yield cannot be achieved in continuous processes, because of long residence time (B) Sales demand is fluctuating (C) Both (A) & (B) (D) Neither (A) nor (B)

Description : Sometimes, batch process is preferred over continuous process, when the product (A) Quality & yield cannot be achieved in continuous processes, because of long residence time (B) Sales demand is fluctuating (C) Both (A) & (B) (D) Neither (A) nor (B)

Last Answer : (C) Both (A) & (B)

Advantage of continuous drying over batch drying is that the (A) Drying cost per unit weight of dried product is less (B) Product with more uniform moisture content is produced (C) Equipment size required is smaller (D) All 'a', 'b' & 'c'

Description : Advantage of continuous drying over batch drying is that the (A) Drying cost per unit weight of dried product is less (B) Product with more uniform moisture content is produced (C) Equipment size required is smaller (D) All 'a', 'b' & 'c'

Last Answer : (D) All 'a', 'b' & 'c'

The use of space time is preferred over the mean residence time in the design of a/an (A) Batch reactor (B) Ideal tubular-flow reactor (C) Slurry reactor (D) CSTR

Description : The use of space time is preferred over the mean residence time in the design of a/an (A) Batch reactor (B) Ideal tubular-flow reactor (C) Slurry reactor (D) CSTR

Last Answer : (B) Ideal tubular-flow reactor

This process management initiative increases the effectiveness of the Sales Budget and therefore demand. a. Benchmarking b. Vendor/Just-in-Time Inventory (JIT) c. Continuous Product Improvement systems (CPI) d. Channel Support systems e. Quality Initiative Training (QIT)

Description : This process management initiative increases the effectiveness of the Sales Budget and therefore demand. a. Benchmarking b. Vendor/Just-in-Time Inventory (JIT) c. Continuous Product Improvement systems (CPI) d. Channel Support systems e. Quality Initiative Training (QIT)

Last Answer : d. Channel Support systems

In a furnace, the heat taken by the charge/stock and the heat lost to the furnace structure & flue gases depends on the (A) Rate of firing and emissivity of flame (B) Thermal conductivity of the charge & structural materials of furnace (C) Nature of process; whether batch, continuous or intermittent (D) All (A), (B) and (C)

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Pick out the wrong statement. (A) 'Hold back' is defined as the fraction of material that stays longer than the mean residence time (B) Study of non-ideal flow reactor is done experimentally by stimulus￾response technique (C) For studying a chemical reaction, it is desirable to monitor the reactants during initial stages and the products during the final stages of reaction (D) A batch reactor cannot be used to study the kinetics of catalytic reaction

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Pick out the wrong statement. (A) In a batch reactor, which is exclusively used for liquid phase reactions; temperature pressure and composition may vary with time (B) In a semi-batch reactor, one reactant is charged batch wise, while the other reactant is fed continuously (C) In a continuous flow reactor, uniform concentration cannot be maintained throughout the vessel even in a well agitated system (D) In a continuous flow reactor, both the reactants and the products flow out continuously

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Higher efficiency in the combustion of solid fuel cannot be achieved by (A) Proper fuel preparation (B) Keeping the flue gas exhaust temperature very high (C) Adopting efficient-fuel firing technique & equipment (D) Supplying correct quantity of combustion air

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For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a single CSTR for high yield (B) Tubular reactor is preferred over a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

Description : For reactions in parallel viz A → P (desired product) and A → Q (unwanted product), if the order of the desired reaction is higher than that of the undesired reaction, a (A) Batch reactor is preferred over a ... a single CSTR for high yield (C) Both (A) and (B) (D) Single CSTR is the most suitable

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The chamber process is (A) Preferred over contact process for producing 98 to 100% H2SO4 and various oleums (B) Non-catalytic and operates only on pyrites (C) A batch process for directly producing high strength (98 to 100%) H2SO4 (D) None of these

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In a semi-batch reactor, (A) Mixing takes place in axial direction only (B) Velocity of reaction can be controlled (C) Condition similar to plug flow reactor exists (D) Residence time is constant

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. A batch reactor is characterised by (A) Constant residence time(B) Variation in extent of reaction and properties of the reaction mixture withtime(C) Variation in reactor volume(D) Very low conversion

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These TQM initiatives reduce administrative overhead; reduces the R&D cycle time and enhances the effectiveness of the promotion and sales budget. a. Concurrent Engineering (CCE); Channel Support systems and Just-in-Time Inventory b. Quality Function Deployment and Benchmarking c. Continuous Product Improvement systems (CPI) and Just-in-Time Inventory d. Channel Support systems and Six Sigma e. Quality Initiative Training (QIT)

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A space velocity of 5 hr -1 means that (A) Five reactor volumes of feed (at specified conditions) are being fed into the reactor per hour (B) After every 5 hours, reactor is being filled with the feed (C) Cent per cent conversion can be achieved in at least 5 hours (D) A fixed conversion of a given batch of feed takes 5 hours

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This process management initiative reduces R&D cycle time, a. Concurrent Engineering (CCE) b. Benchmarking c. Continuous Product Improvement systems (CPI) d. Channel Support systems e. Quality Initiative Training (QIT)

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This process management initiative reduces material costs and administrative overhead. a. Benchmarking b. Vendor/Just-in-Time Inventory (JIT) c. Continuous Product Improvement systems (CPI) d. Channel Support systems e. Quality Initiative Training (QIT)

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Air used in aerobic fermentation must be sterilized, otherwise the (A) Recovery of product will be difficult (B) Contamination of pure culture would result (C) Uniformity of product cannot be achieved (D) None of these

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Fill in the blanks with the appropriate option. In spite of heavy advertising, the new product only achieved _____________, sales. (a) disappointing (b) Spirit (c) Vapid (d) Humdrum

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Plate towers are preferred to packed towers, when large temperature changes are involved, because of the reason that the (A) Packing may be crushed due to thermal expansion/contraction of the components of the equipments (B) Pressure drop in the equipment will be very high (C) Viscosity variation of the fluids may cause channelling/flooding (D) None of these

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This process management initiative reduces material cost and, to a lesser degree, labor costs. a. Concurrent Engineering (CCE)/Six Sigma b. Benchmarking c. Continuous Product Improvement systems (CPI) d. Channel Support systems e. Quality Initiative Training (QIT)

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Phenytoin: 1) is a benzalkonium Derivative 2) is clinically effective serum level is in the range on 2-10 micrograms/ml. 3) A steady state blood level is achieved by 2-5 days 4) Can be used in management of alchohol withdrawl syndrome 5) Is the drug of choice in absence seizures.

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Maximum endurance: a. Can be achieved in level unaccelerated flight with minimum fuel consumption b. Can be achieved by flying at the best rate of climb speed in straight and level flight c. Can be achieved in a steady climb d. Can be achieved by flying at the absolute ceiling

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Maximum endurance: a. Can be achieved in level unaccelerated flight with minimum fuel consumption b. Can be achieved by flying at the best rate of climb speed in straight and level flight c. Can be achieved in a steady climb d. Can be achieved by flying at the absolute ceiling

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Higher fuel combustion efficiency cannot be achieved by (A) Preheating of fuel gases & combustion air (B) Reducing sulphur content in the fuel (C) Adopting proper fuel firing technique & fuel preparation (D) Supplying correct amount of combustion air

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