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.Management Sciences
Category: CHEMICAL ENGINEERING
Testing of the knocking characteristics of petrofuels is done in a _________________ engine ?
A. Carnot
B. CFR (Co-operative fuel research)
C. Stirling
D. Diesel
Phthalic anhydride is used____________________?
A. In making PVC
B. As plasticisers
C. In insecticides manufacture
D. For making nylon-6
In a shell and tube heat exchanger having triangular pitch, the shell side equivalent diameter is given by________________?
A. 4(0.86P2 – πd2/4)/πd
B. (P2 – πd2/4)/πd
C. 4(0.86P2 – πd2)/πd
D. (4P2 + πd2/4)/πd
Out of the following, the lowest packing of atoms exists in ____________________ crystal lattice structure?
A. Hexagonal close, packed (hcp)
B. Face centred cubic (fcc)
C. Body centred cubic (bcc)
D. Simple cubic
Maximum heat transfer rate is obtained in ______________ flow?
A. Laminar
B. Turbulent
C. Creeping
D. Transition region
Steam is intermittently admitted into the fuel bed during the production of producer gas to__________________?
A. Convert CO to CO2
B. Increase the combustion rate
C. Increase the gas production rate
D. Minimise the chances of clinker formation
For laminar flow of filtrate through the cake deposited on septum, which of the following will be valid ?
A. Kozeny-Carman equation
B. Leva’s equation
C. Blake-Plummer equation
D. None of these
Each term in Bernoulli‟s equation represents the _____________ of the fluid?
A. Energy per unit mass
B. Energy per unit weight
C. Force per unit mass
D. None of these
Which of the following is not a second order instrument ?
A. Mercury in glass thermometer with covering
B. Bare mercury in glass thermometer
C. Pressure gauge with one bellow, two tubes and a tank
D. None of these
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