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.Management Sciences
Category: CHEMICAL ENGINEERING
Pick out the correct statement ?
A. Jet engine can work, where there is no atmosphere
B. Rocket engines cannot work, where there is no atmosphere
C. Rocket engines carry oxygen required for the combustion in the form of oxidiser
D. Jet engines also carry oxidiser
Sensible heat of hot industrial flue gases cannot be recovered by a/an________________?
A. Economiser
B. Regenerator
C. Ceramic recuperator
D. None of these
In a stabilised soap bubble, pressure inside it compared to external pressure is________________?
A. More
B. Less
C. Same
D. Unpredictable
A Carnot cycle consists of the following steps ?
A. Two isothermal and two isentropic
B. Two isobaric and two isothermal
C. Two isochoric and two isobaric
D. Two isothermals and two isochoric
Which of the following is not correct for a reversible adiabatic process ?
A. TVγ-1 = constant
B. p1-γ.TY = constant
C. PVγ = constant
D. None of these
The variation of heat of reaction with temperature at constant pressure is given by the ____________ law?
A. Kelvin’s
B. Antoine’s
C. Kirchoff’s
D. None of these
Critical humidity of a solid salt means the humidity_____________________?
A. Above which it will always become damp
B. Below which it will always stay dry
C. Both A. and B.
D. Above Which it will always become dry and below which it will always stay damp
Cermets are combination of ceramic and metallic materials due to which they have high strength & resistance to high temperature. Cermets are used in the_______________?
A. Hearth of the blast furnace
B. Nuclear reactors, missiles & space crafts
C. Insulation of high temperature furnaces
D. Roof of electric furnaces
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