An atom bomb works on the principle of
Nuclear fission
Nuclear fusion
Both the nuclear fission & fusion
Ionisation
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- Pick out the wrong statement about the machinability of metals. Machinability of a metal
- The best lubricants for a machine working at high temperature & load is
- Air-petrol ratio for maximum power generation in spark ignition engine is about
- __________ is the process used for setting up compressive stresses in the surface of a metal to improve…
- Propulsion of rocket follows from the
- Carnot cycle is also termed as the constant __________ cycle in thermodynamics.
- Diamagnetic materials
- Minimum safe distance between two liquid fuel storage tanks is equal to (where, H = height of the tank)
- __________ are normally subjected to sub-zero treatment.
- The most important consideration in value engineering is the
- The emf of a Deniell cell Zn | Zn2+ || Cu2+ | Cu can be increased by
- The most important requirement for aluminium industry is the availability of cheap
- Elimination of brittleness resulting from welding of saw blades is done by __________ of the welded…
- Cold cracking in the heat affected zone of a high strength steel weld can take place because of the
- Chromium molybdenum steel cannot be welded using __________ welding.
- __________ is the hardest material out of the following.
- The substance used as a smoke screen in warfare is
- The wet bulb temperature is lower in dry air than in wet air at the same temperature. A dry bulb thermometer…
- Yield strength of a polycrystalline metal with an average grain size d, is proportional to
- Plants produce carbohydrates from the CO2 present in the atmosphere by
- Which of the following parameters is not responsible for the heat loss from a hot steam carrying bare…
- Transformation range for ferrous material is the temperature interval during which __________ is formed…
- Function of fusible plug in a boiler is to
- Silicon percentage in the silicon steel used for electrical appliances/equipments is
- Other parameters remaining same, the recrystallisation temperature of an alloy is lowered, when
- Solute atoms which cause yield point phenomenon in mild steel are/is
- Pick out the wrong statement about nucleate boiling.
- Dislocations are __________ defects.
- A steam pipe is intended to be insulated with two layers of insulating materials of different thermal…
- Addition of silicon to cast iron