A. Boiler
B. Heat exchanger (Correct)
C. Recuperator
D. Regenerator
Chemical Engineering / Q&A
For grinding of cereals, grains, spices, pigments, saw dust, cork etc., the most extensively used size reduction equipment is a__________________?
A. Buhrstone mill (Correct)
B. Ball mill
C. Crushing rolls
D. Hammer mill
If CA is the quantity of reactants initially present, the quantity left after ‘n’ half periods will be equal to__________________?
A. (CA/2)n
B. (½)n CA (Correct)
C. (CA/2)1/n
D. (CA)1/2n
The amount of heat required to decompose a compound into its elements is _____________ the heat of formation of that compound from its elements?
A. Less than
B. More than
C. Same as (Correct)
D. Not related to
Out of the following four assumptions used in the derivation of the equation for LMTD [LMTD = (Δt1 – Δt2)/ln(Δt1/Δt2)], which one is subject to the largest deviation in practice ?
A. Constant overall heat transfer co-efficient.
B. Constant rate of fluid flow (Correct)
C. Constant specific heat
D. No partial phase change in the system
Pick out the wrong statement?
A. Metal/alloys having hexagonal crystal lattice structure are less malleable than those having
cubic crystal lattice structure
B. Metal/alloys having body centred cubic (bcc) crystal lattice structure is stronger & less ductile
than those having face centred cubic (fcc) crystal lattice structure
C. Tungsten has a body centred cubic (bcc) crystal lattice structure (Correct)
D. Both ferritic & austenitic stainless steel has a face centred cubic (fcc) crystal structure
Melting of ice exemplifies a/an______________________?
A. Adiabatic process
B. Endothermic reaction (Correct)
C. Exothermic reaction
D. Process involving a chemical reaction
Softness of silver can be converted into hardness by alloying it with small quantity of_________________?
A. Copper & nickel (Correct)
B. Zinc
C. Aluminium
D. Tin
_____________ chloride present in crude petroleum as impurity is the most prolific producer of HCl during distillation?
A. Magnesium (Correct)
B. Potassium
C. Calcium
D. Sodium
‘Synthesis gas’ meant for the synthesis of organic compound is a variable mixture of ____________________?
A. N2 & H2
B. CO2 & H2
C. CO & H2 (Correct)
D. C & H2