Reduction in the grain size reduces the _________________ of the material?
A. Fatigue resistance
B. Tensile strength
C. Creep resistance
D. All A, B. & C
Chemical Engineering Basics
Lead is poured into the joints between two ___________________ pipes?
Lead is poured into the joints between two ___________________ pipes?
A. Cast iron
B. Steel
C. Concrete
D. Plastic
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be_______________?
The most economical channel section for the fluid flow is the one for which the discharge is maximum for a given cross-sectional area. Vertical velocity distribution in an open channel for laminar flow can be assumed to be_______________?
A. Parabolic
B. Hyperbolic
C. Straight line
D. None of these
Out of the following, the ________________ pipe has the least corrosion resistance?
Out of the following, the ________________ pipe has the least corrosion resistance?
A. Mild steel
B. Copper
C. Cast iron
D. Wrought iron
An alloy of Fe – 0.4 % C is__________________?
An alloy of Fe – 0.4 % C is__________________?
A. Cast iron
B. Hypo-eutectoid steel
C. Hyper-eutectoid steel
D. Eutectoid steel
Thermit welding uses the following energy source ?
Thermit welding uses the following energy source ?
A. Electrical energy
B. Chemical energy
C. Energy of high velocity electrons
D. Heat generated by friction
Resistance of an electrical conductor is proportional to its (where, l = length and A = crosssectional area of the conductor)________________?
Resistance of an electrical conductor is proportional to its (where, l = length and A = crosssectional area of the conductor)________________?
A. A
B. l
C. A2
D. Both A. & B.
Which of the following has the highest value of refractive index ?
Which of the following has the highest value of refractive index ?
A. Brine (sea water)
B. Diamond
C. Distilled water
D. Glass
The phenomenon occurring during explosion of a hydrogen bomb is___________________?
The phenomenon occurring during explosion of a hydrogen bomb is___________________?
A. Nuclear fission
B. Nuclear fusion
C. A combination of both nuclear fission & fusion
D. None of these
Energy of the sun arises mainly from __________________ reactions?
Energy of the sun arises mainly from __________________ reactions?
A. Fusion
B. Fission
C. Combustion
D. None of these