A. Vanadium pentoxide
B. No (Correct)
C. Alumina
D. Nickel
____________ catalyst is used in the production of urea from CO2 and NH3? Read More »
Chemical Engineering / Q&A, MCQs / Q&AA. Baking soda
B. Baking powder (Correct)
C. Washing soda
D. None of these
Which of the following has sodium bicarbonate as its main constituent ? Read More »
Chemical Engineering / Q&A, MCQs / Q&AA. Air is sucked in, so air leaks are more and hence the furnace efficiency is reduced
B. The fan operates hot and hence blades are liable to corrosion and erosion
C. Positive pressure exists in the furnace (Correct)
D. None of these
A. 25-28
B. 52-54 (Correct)
C. 75-80
D. > 98
A. Cast iron
B. Stainless steel or glass lined vessel (Correct)
C. Karbate
D. Wrought iron
A. (ρH – ρair)gH (Correct)
B. (ρH – ρL)gH
C. (ρH – ρL) gH + (ρL – ρair) . g(L – H)
D. (ρH – ρL) gL + (ρL – ρair)gH
A. Reduces the upper shelf energy
B. Increasing the ductility transition temperature (Correct)
C. Decreases brittleness
D. Decreases hardness
Increasing the carbon content of steel_________________? Read More »
Chemical Engineering / Q&A, MCQs / Q&AA. Silica (Correct)
B. Dissolved oxygen
C. Suspended salt
D. Dissolved salt
A. In liquid phase (Correct)
B. In vapour phase
C. At very high temperature
D. At very low pressure (vacuum)
Urea is formed only____________________? Read More »
Chemical Engineering / Q&A, MCQs / Q&AA. More durable
B. Very brittle
C. Very hard
D. All A., B. & C.(Correct)
White cast iron as compared to grey cast iron is ________________? Read More »
Chemical Engineering / Q&A, MCQs / Q&A