O₂ content in atmospheric air on weight basis is

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1. In a compound steam engine, the first stage of expansion is carried out in a high pressure cylinder…
2. Clearance ratio is the ratio of
3. A single stage impulse turbine with a diameter of 1.2 m runs at 3000 r.p.m. If the blade speed ratio…
4. Which of the following is steam dial?
5. Water boils when its vapour pressure
6. The fire tubes in a Locomotive boiler has _________ diameter.
7. When the circulation of water, in a boiler, is by convection currents which are set up during the heating…
8. The expansion of steam, as it flows over the blades in reaction turbine, represents
9. An impulse turbine as compared to a reaction turbine, for a given power has _________ row of blades.
10. The bituminous coal is no caking if its carbon content is
11. The relative efficiency is defined as the
12. The ratio of the volume at cut-off to the swept volume is called
13. At very low temperature, the melting and boiling temperatures become equal. This temperature is
14. A compound steam engine in which piston rods of high pressure and low pressure cylinders are attached…
15. The velocity of whirl at outlet for an axial discharge turbine is
16. The actual vacuum in a condenser is equal to
17. The ratio of the actual vacuum to the ideal vacuum in a condenser is called
18. A valve installed between the boiler and the feed pump is
19. A throttle governed steam engine develops 15 kW with 280 kg per hour of steam and 35 kW with 520 kg…
20. In cross compounding, the cylinders are arranged
21. A _________ in a boiler is used to put off fire in the furnace of the boiler when the level of water…
22. Which of the following are boiler accessories?
23. Lancashire boiler is of
24. While steam expands in turbines, theoretically the entropy
25. The turbine blades are
26. On Millier chart, the constant pressure lines
27. Rateau turbine is
28. The fire tubes in a Scotch marine boiler are
29. In water wall furnace, the heat is transferred to the water walls by
30. A nozzle is said to be a convergent nozzle

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