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Chemical Engineering Basics MCQs

Chemical Engineering Objective Questions

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302. Powder metallurgy processing can be used for making
A. Dispersion strengthened copper rod
B. Self lubricating bearing and cemented carbide
C. Connecting rod
D. Piston
Discussion
303. Pick out the wrong statement about the machinability of metals. Machinability of a metal
A. Decreases with increase in strain hardening tendencies
B. Decreases with increase in hardness, in general
C. Depends on the composition, microstructure and physical & mechanical properties
D. Decreases with increases in tensile strength & decrease in grain size
Discussion
304. The capital & running costs of similar machines having unequal service life can be compared by the __________ method.
A. Equivalant annual cost
B. Rate of return
C. Present net worth
D. Capitalised cost
Discussion
305. Which of the following is not the function of a volute casing provided in a centrifugal pump?
A. To reduce the head loss in discharge
B. To increase the pump efficiency
C. To collect liquid from the periphery of the impeller and to transmit it to the delivery pipe at constant velocity
D. To increase the pump discharge rate
Discussion
306. Thermoplastics are never moulded using
A. Injection moulding
B. Blow moulding
C. Extrusion
D. Compression moulding
Discussion
307. Gross & Net calorific values will be the same for
A. Methane
B. Propane
C. Carbon monoxide
D. Hydrogen
Discussion
308. The most detrimental impurity in high pressure boiler feed water is
A. Suspended salt
B. Dissolved salt
C. Silica
D. Turbidity
Discussion

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