Hamad Chemical Heat Transfer 01/04/2020 A. (r1 – r2)/ln(r1/r2) B. (r1 – r2)/ln(r2/r1) C. (r2 – r1)/ln(r1/r2) D. (r1 – r2)/-ln(r1/r2) Related Mcqs: According to Reynolds analogy, Stanton number is equal to (where, f = Fanning friction factor) ?A. 2f B. f C. f/2 D. f/4... For a cold dilute feed to produce thick viscous liquor, backward feeding as compared to forward feeding results in_____________________?A. Increased economy B. Decreased economy C. Lower capacity D. No effect on economy... As per Kirchoff‟s law, the ratio of the total radiating power to the absorptivity of a body depends on the_______________?A. Temperature of the body only B. Wavelength of monochromatic radiation C. Both A. and B. D. Nature of material of body... Circulation pump is located below the evaporator to___________________?A. Avoid cavitation B. Avoid frequent priming C. Create more suction head D. None of these... The outlet temperature of cooling water in a heat exchanger is generally not allowed to exceed above 50°C in industrial practice mainly to avoid_________________?A. Its evaporation loss B. Excessive corrosion C. Uneconomic LMTD D. Decrease in heat exchanger efficiency...
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