Welcome to your Forensic Chemistry Quiz
3.
Assertion and Reason Question:
Assertion (A): Liquid fuel can be categorized into flammable and combustible fuels.
Reason (R): The categorization is based on the fire point of 100°F.
5.
Assertion and Reason Question:
Assertion (A): During the emergent smoldering phase of a fire, the products of combustion become increasingly pronounced.
Reason (R): This phase is characterized by a high level of oxygen-enriched air in the room.
8.
In the context of a fire, what factor doubles the intensity of the fire?
9.
Assertion and Reason Question:
Assertion (A): Radiation is radiated heat moving at the speed of rising much like sunlight or x-rays.
Reason (R): Radiant heat travels in a direct or straight line from the source until it strikes an object.
10.
Cetane number is defined as:
11.
The upper limit of the flammable range of gas referred to?
13.
What is the definition of “Subrogation”?
14.
Assertion and Reason Question
Assertion (A): Ignition quality of petrol and diesel can be governed by octane number.
Reason (R): Octane number measures the resistance to knock (or antiknock quality) for gasoline fuel.
15.
The free-burning phase of fire is characterized by:
(a) Increasing combustion products
(b) High levels of oxygen-enriched air
(c) Doubling the fire’s intensity with each 10°C temperature increase
(d) Rapid evolution of heat from the original point of fire
(e) Depletion of oxygen-enriched air
Choose the correct option from the list:
17.
The events that must occur for a chemical chain reaction to maintain flaming combustion are:
(a) The oxidation reaction must produce sufficient heat to maintain continued oxidation.
(b) The fuel mass must be broken down into similar compounds.
(c) The unburned vapors must combine with available oxygen.
(d) The fuel mass must be cooled to prevent combustion.
Choose the correct option from the list:
25.
Assertion and Reason Question
Assertion (A): The fire point of a fuel is the temperature at which it produces vapors that will ignite but not sustain combustion.
Reason (R): The fire point is generally several degrees higher than the flash point.