Q. An insulated storage tank contains 1000 kg liquid of specific heat 10 kJ kg-1 K-1. The liquid is heated by saturated steam, condensing in a helical coil at a temperature of 180 oC. The heat transfer area of the coil is 0.1 m2. If the overall heat transfer coefficient is constant at 1000 W m-2 ...

Q. In a laboratory batch setup, reaction of P over a catalyst was studied at various temperatures. The reactions occurring are P ---> 2Q   ;    P ----> R At the end of one hour of operation, the batch contains xP, xQ and xR mole fractions of P, Q and R components, respectively. The mole ...

Q. Match the items in Column A with the items in Column B Here, f denotes the phase shift, K1 and K2 the process gains, t the time constant, and AR the amplitude ratio. (A) P-II, Q-III, R-IV, S-I                              (B) P-III, Q-II, R-IV, S-I (C) P-I, Q-IV, R-II, ...

Q. A person is drowning in sea at location R and the lifeguard is standing at location P. The beach boundary is straight and horizontal, as shown in the figure. The lifeguard runs at a speed of VL and swims at a speed of VS. In order to reach to the drowning person in optimum time, the ...

Q. A furnace installed at a cost of Rs. 24 Lakh is expected to serve its useful life of 5 years. Salvage value of the furnace is Rs. 8 Lakh. The interest rate compounded annually is 8%. The estimated capitalized cost (in Lakhs of rupees) is (A) 30                         (B) ...

Q. In the year 2005, the cost of a shell and tube heat exchanger with 68 m2 heat transfer area was Rs. 12.6 Lakh. Chemical Engineering Index for cost in 2005 was 509.4 and now the index is 575.4. Based on index of 0.6 for capacity scaling, the present cost (in Lakhs of rupees) of a similar heat ...

Q. Match the equipment in Column A with the corresponding process in Column B Column AColumn B(P) Centrifugal sifter(I) Mixing(Q) Bowl mill(II) Sedimentation(R) Gravity thickener(III) Screening(S) Two-arm kneader(IV) Grinding (A) P-I, Q-IV, R-II, S-III                              (B) ...

Q. The ammonia (NH3) oxidation process occurs over a catalyst as 4 NH3 + 5O2 ----> 6H2O + 4 NO Air is supplied such that oxygen (O2) is 20% in excess of that required for complete conversion of NH3. The mole fraction of O2 in inlet gas mixture (NH3 + air) is _________________(rounded off to ...

Q. A venturi meter is installed to measure the flow rate of water in a 178 mm diameter (ID) pipe. The throat diameter is 102 mm. The differential pressure measured using a manometer is 154.3 kN/m2. The data given are: discharge coefficient = 0.98; water density = 1000 kg/m3. The volumetric flow ...

Q. Pitot tube is used to measure A. liquid level in a tank B. flow velocity at a point C. angular deformation D. vorticity Ans: flow velocity at a point

Q. For a chemical reaction, the ratio of rate constant at 500 K to that at 400 K is 2.5. Given R = 8.314 J mol-1 K-1, the value of activation energy (in kJ/mol) is (A) 10.5                      (B) 12.0                      (C) 15.2                     (D) 18.4 Ans: 15.2

Q. For absorption of H2S from a mixture with hydrocarbon vapour into an aqueous alkanolamine solution, the liquid phase mass transfer resistance is A. significantly higher than that of the gas phase B. negligible compared to that of the gas phase C. equal to that of the gas phase D. ...