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Critical mass of this fissionable isotope can blast you to the outer limits of the solar system?
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∙ 15y ago
Plutonium
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∙ 15y ago
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What material does a nuclear power station use for energy?
Most nuclear power stations use uranium enriched to 3% uranium-235 isotope. The nuclear power stations in France include some reprocessed plutonium mixed with the enriched uranium. A small number of nuclear power stations were designed with fast neutron breeder reactors and used uranium enriched to as much as 93.7% uranium-235 isotope. As more of the uranium-238 (or thorium-232) in the breeding blanket was transmuted to fissionable plutonium (or uranium) isotopes, the breeding blanket material would be reprocessed and these fissionable isotopes would be used to replace the original spent uranium. But only a small number of such nuclear power stations were built and the system for reprocessing of the breeding blanket material was not set up.
What is meant by supercritical andhow dose it relate to making a nuclear bomb?
subcritical - a mass or arrangement of fissionable or fissile material unable to sustain a neutron chain reaction. It can provide a fixed amount of neutron multiplication from a neutron source, but after removal of the neutron source the chain reaction rate drops exponentially.critical - a mass or arrangement of fissionable or fissile material capable of sustaining a constant neutron chain reaction. No increase or decrease. (Nuclear reactors operate at critical)supercritical - a mass or arrangement of fissionable or fissile material capable of not only sustaining a neutron chain reaction, but once initiated the chain reaction rate rises exponentially. (Nuclear fission bombs explode when made supercritical)A nuclear fission bomb must have 2 of these states: subcritical (so that it can't explode until desired) and supercritical (so that it explodes with an effective yield). This requires a rapid "assembly" system using conventional explosives to rearrange the fissile material from subcritical to supercritical in about 1ms. A neutron source starts the chain reaction and the explosion completes in about 1 microsecond.
Should refrigerants be operated at temperatures above or below their critical temperature?
The critical temperature of a refrigerant is the point at which it changes states. In a refrigeration scenario, this happens 2 times per cycle. The refrigerant is a liquid on the high pressure side, and below its critical temp. On the low pressure side it becomes a vapor (gas) and its above its crictal temp. So the answer is both, depending on what side of the system you are on.
What is the purpose of a lockwasher?
Lockwashers use friction to bind the nut to the surface of what is being fastenned. The more the lockwasher is tightenned by the nut (within limits) the more it holds the system together.
Why negative feedback is necessary in closed-loop control systems?
Feed back generated can be used to help alter the gain in the system to ensure marginal stability or critical damping
System of political limits and controls?
A system of political limits and controls is system of powers
What element of the TAPES system are critical?
All elements of TAPES system are critical
What are the three principal types of critical system?
1. safety critical 2. mission critical 3. business critical
What inhibitions system shuts down the system or limits?
monkeys
what limits the amount of work that a system can do?
alot
What material does a nuclear power station use for energy?
Most nuclear power stations use uranium enriched to 3% uranium-235 isotope. The nuclear power stations in France include some reprocessed plutonium mixed with the enriched uranium. A small number of nuclear power stations were designed with fast neutron breeder reactors and used uranium enriched to as much as 93.7% uranium-235 isotope. As more of the uranium-238 (or thorium-232) in the breeding blanket was transmuted to fissionable plutonium (or uranium) isotopes, the breeding blanket material would be reprocessed and these fissionable isotopes would be used to replace the original spent uranium. But only a small number of such nuclear power stations were built and the system for reprocessing of the breeding blanket material was not set up.
What are elements of the TAPES system?
All elements of TAPES system are critical
What tipe of definition is System of political limits and controls?
No
How do you know that the moon belongs in your Solar System?
Because it is within the limits of our solar system
Difference between critical and non critical task in real time system?
the difference in critical and non critical task in a system is critical task are processes that the computer needs to operate correctly they are must have programs. Non critical talk are task that are running or can run but is not a crusial part if the task is deleted or ended then the OS should still fuction properly
Can be set to routinely make snapshots of critical Windows system files necessary to load the OS?
System Restore can be set to do snapshots routinely of a critical file of Window system. It can also retrieve the system files of a PC.
What are the characteristics of a buffer system?
Buffering system is the physiological system that function to keep pH within normal limits.
