The following type of bonding is strongly directional in solids.

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1. Fire in fuel gas pipelines is extinguished most effectively by
2. Atomic __________ of an element is a whole number.
3. __________ is used as a material of construction for the blade of power saw.
4. The 'laughing gas' is
5. The taper provided on pattern for its easy & clean withdrawal from the mould is termed as the __________…
6. Optical activity is a/an __________ property.
7. Hot extrusion of aluminium is done in the temperature range of __________ °C.
8. During sensible heating of humid air
9. Water-tube boiler is the one, in which
10. Coarse grained steels have
11. The most important requirement for aluminium industry is the availability of cheap
12. Heat flow across a hollow sphere of inner radius 'r1' and outer radius 'r2' is directly proportional…
13. Hardening of steel is not possible, unless it is heated __________ critical point.
14. Heat transfer to the water wall in a high pressure water wall type boiler furnace is mainly by
15. Cupola produces __________ iron.
16. Rankine cycle comprises of two isothermal and two __________ processes.
17. To improve the machinability of steel, it is generally subjected to
18. Internal energy of a gas obeying Van-Der- Waals equation of state, [p + (a/v2)] (V - b) = RT, depends…
19. The specific gravity of coal depends mainly on its __________ content.
20. Nusselt number is related to Grashoff number (Gr) in turbulent & laminar flow respectively, in respect…
21. Increase in the entropy of a system represents the
22. Chromium molybdenum steel cannot be welded using __________ welding.
23. Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare…
24. The excess air required for the combustion of pulverised coal is of the order of about __________ percent.
25. Oxyacetylene reducing flame is used while carrying out welding on
26. Circular cross section machine parts which are symmetrical about the axis of rotation are made by hot
27. The cooling rate required to freeze 1 ton of water at 0°C into ice at 0°C in 24 hours is __________…
28. Which of the following forces does not act on a fluid at rest?
29. Pick out the wrong statement.
30. The ratio of thermal & electrical conductivity is same for all the metals at the same temperature; and…

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