the application of engineering principles, knowledge, skills, and methodologies to answer questions of fact that may have legal ramifications.
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Fire
**D**efined as the rapid oxidation process with the evolution of heat and light.
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**self-propagating reaction**
The chemical reaction involved in fire is a **______** that goes on by itself, once started.
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heat source
This _____ also leads to the point of origin of fire.
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point of origin
This ____ can be found out by finding “the low point”.
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low point
This ____ is based on the principle of various rates of propagation of fire in different directions.
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rate of propagation
The ______ of fire is maximum in the vertical direction followed by the horizontal direction and least in the downward direction.
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differential rate of propagation
This _____ causes fire to move in the form of a “V”.
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**Centroid Method**
This method is more useful in cases in which the building is of only one story high and is made of uniform material.
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**Warehouse/Box Method**
In this method the damage that fire causes to the walls or the room is used.
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**Weighted Centroid Method**
This method assumes that the point that is subject to the longest duration of fire and so is the most severely damaged, is the point of origin of fire.
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**Sequential Analysis**
In this method, the point of origin of fire is determined by following in reverse order the trail of fire from where it ends to where it began.
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Arson
______ can be defined as the malicious burning of homes, residences, buildings, or other types of real property.
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**Primary shorting**
**_______** is that shorting that has started the fire.
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**Secondary shorting**
______ is the one that is caused due to fire.
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Short circuit
____ causes the electrical conductors to heat up excessively. This causes the insulating material, that is usually made of plastic, to heat up and melt, leaving the conductor bare.
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Skid marks
_______ are vital evidence for vehicular accident reconstruction, when their size and shape can reveal much about vehicle speed and forces of acceleration or deceleration.
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**skid marks**
The **_____** are produced due to the force of friction acting between the vehicle that is decelerating and the ground.
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**Antilock Braking System**
Devised to prevent the tiers from locking when the brakes are applied. They prevent skidding of the vehicle when the brakes are applied suddenly.
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**Momentum Method**
This method is based on the principle of conservation of momentum. When two bodies collide, the combined momentum of the system.
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**Energy Method**
This method is based on the principle of conservation of energy. When two bodies collide, the combined energy of the system.
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**Static loads**
These are the loads of the building itself.
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Dead loads
______ are the loads that don’t change with time.
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Live loads
______ include those weights that may change with time of the day or season like furniture, machinery, human beings, etc.
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**Dynamic loads**
**____** include the loads that change in a very short period of time.
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**explosion**
An **_____** is a sudden, violent release of energy. It is usually accompanied by a loud noise and an expanding pressure wave of gas.
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**Deflagrating Explosion**
These are the type of explosions in which there is a relatively slow, progressive burn rate of the explosive material.
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**Detonating Explosion**
These are the type of explosions in which there is high burn rate, high energy release and a high peak explosion pressure.
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