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.Management Sciences
Category: CHEMICAL ENGINEERING
Lap joints are preferred over butt joints in soldering/brazing, because these joints are _________________?
A. Weaker in tension but stronger in shear
B. Weaker in shear but stronger in tension
C. Stronger in both shear and tension
D. The lap joints are easily made
In the nuclear reaction, 93N239→ 94Pu239 + ?; the missing particle is a/an__________________?
A. Electron
B. Proton
C. Neutron
D. Position
Pick out the wrong statement ?
A. Geothermal energy is a non-conventional source of energy
B. Mass is converted into energy in both nuclear fission & fusion reaction
C. Inhalation of mercury vapour is not harmful for human beings
D. Inhalation of arsenic causes cancer
The main advantage of forced draft over natural draft is that____________________?
A. Combustion of fuel is complete
B. Smaller height chimney can be used
C. Furnace control is easier
D. All A., B. & C.
If ‘n’ is the order of reaction, then unit of rate constant is _________________?
A. 1/(time)(concentration)n – 1
B. (Time)-1 (concentration)n – 1
C. (Time)n – 1 (concentration)
D. None of these
Basic open hearth furnace (BOF) is not used for producing ______________ steel?
A. Killed
B. Rimming
C. High alloy
D. None of these
The inlet pressure in a constant rate filtration____________________?
A. Increases continuously
B. Decreases gradually
C. Remains constant
D. None of these
Raw materials for nitric acid manufacture are___________________?
A. Hydrogen peroxide, air and water
B. Anhydrous ammonia and air
C. Anhydrous ammonia, air and water
D. Wet ammonia, air and water
Which of the following is the most widely used insulating material for steam carrying pipelines ?
A. Ceramic fibre blanket
B. Glass wool and 85% magnesia
C. Vermiculite
D. Slag wool
Nuclear fission of one atom of uranium-235 produces the energy equivalent to about ____________ MeV?
A. 20
B. 200
C. 500
D. 2000
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