Related Questions

For annular flow of a fluid, the ratio of the equivalent diameter for pressure drop calculation to the equivalent diameter for heat transfer calculation is
A $$\frac{{{{\text{d}}_1}}}{{{{\text{d}}_1} + {{\text{d}}_2}}}$$
B $$\frac{{{{\text{d}}_2}}}{{{{\text{d}}_1} + {{\text{d}}_2}}}$$
C $$\frac{{{{\text{d}}_1} + {{\text{d}}_2}}}{{{{\text{d}}_1}}}$$
D $$\frac{{{{\text{d}}_1} + {{\text{d}}_2}}}{{{{\text{d}}_2}}}$$
The Brahmaputra, Irrawady and Mekong rivers originate in Tibet and flow through narrow and parallel mountain ranges in their upper reaches: Of these rivers, Brahmaputra makes a "U" turn in its course to flow into India. This "U" turn is due to
A Uplift of folded Himalayan series
B Syntaxial bending of geologically young Himalayas
C Geo-tectonic disturbance in the tertiary folded mountain chains
D Both A and B above
There are three kinds of solar eclipses: one is total, another is annular, and ___.
A the another is partial
B the partial is other
C other is partial
D the other is partial
A __________ evaporator employs an annular downtake.
A Basket type
B Horizontal
C Long tube vertical
D None of these
If an aluminium pattern made from a wooden master pattern is to be used for grey iron castings, then the shrinkage allowance allowed on the wooden pattern should be
A 10 mm/m
B 16 mm/m
C 20 mm/m
D 26 mm/m
The type of valve which allows water to flow in one direction but prevents its flow in the reverse direction is
A Reflux valve
B Sluice valve
C Air relief valve
D Pressure relief valve
Whenever a plate is held immersed at some angle with the direction of flow of the liquid, it is subjected to some pressure. The component of this pressure, in the direction of flow of the liquid, is known as
A Lift
B Drag
C Stagnation pressure
D Bulk modulus
The velocity distribution in direction normal to the direction of flow in plane Poiseuille flow is
A Hyperbolic
B Parabolic
C Linear
D None of these
According to Fleming's right-hand rule for finding the direction of induced e.m.f., when middle finger points in the direction of induced e.m.f., forefinger will point in the direction of
A Motion of conductor
B Lines of force
C Either of the above
D None of the above
Kolleru Lake, located in the southern state of Andhra Pradesh, is located at the delta of two rivers. Which are the rivers?
A Krishna and Cauvery
B Tungabhadra and Chitravathi
C Godavari and Mahanadi
D Godavari and Krishna

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