_______________ number determines whether the fluid flow in an open channel is super-critical, critical or sub-critical ?
A. Mach
B. Reynolds
C. Froude
D. Weber
Chemical Engineering Basics
Satellite is a _________________ material?
Satellite is a _________________ material?
A. Ferrous
B. Ceramic
C. Cemented carbide
D. Non-ferrous cast alloy cutting tool
Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is___________________?
Catalyst used in the catalytic converter employed in automobiles to convert CO into CO2 and for complete oxidation of un-burnt hydrocarbons is___________________?
A. Nickel
B. Cobalt
C. Vanadium
D. Platinum
Cascade control is___________________?
Cascade control is___________________?
A. The continuous adjustment of the set point index of an automatic control loop by a primary(master) controller
B. Used when changes in process conditions cause serious upsets in the controlled variable
C. Useful to control flow from temperature
D. All A, B & C
For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = – 60000 J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be__________________?
For the irreversible reaction, Ca+ 2C = Ca C2 , Δ H°298 = – 60000 J . mole-1 . If a system initially containing 2 moles of calcium, 3 moles of carbon and 1 mole of calcium carbide is allowed to react to completion, the heat evolved at 298 K will be__________________?
A. 30,000 J
B. 60,000 J
C. 90,000 J
D. 2,40,000 J
Hardening of steel is not possible, unless it is heated _________________ critical point ?
Hardening of steel is not possible, unless it is heated _________________ critical point ?
A. Above the highest
B. Above the lowest
C. Between the first & second
D. Between the second & third
Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?
Strain hardening effect in metals subjected to cold working is due to the _______________ mechanism?
A. Slip
B. Fracture
C. Winning
D. Dislocation
Atomic _________________ of an element is a whole number ?
Atomic _________________ of an element is a whole number ?
A. Weight
B. Number
C. Volume
D. Radius
Which of the following heat treatment processes is usually applied to castings ?
Which of the following heat treatment processes is usually applied to castings ?
A. Tempering
B. Annealing
C. Normalising
D. Carburising
A material is capable of resisting softening at high temperature, because of its property termed as____________________?
A material is capable of resisting softening at high temperature, because of its property termed as____________________?
A. Hot temper
B. Hot hardness
C. Fatigue
D. Creep