Prac

What is the main constituent of combustible substances mentioned in the text?

• Hydrogen

• Oxygen

• Carbon

• Nitrogen

What are the final products of any complete combustion of hydrocarbons?

• Carbon Monoxide and Water

• Carbon Dioxide and Oxygen

• Carbon Dioxide and Water

• Carbon Monoxide and Oxygen

What is the unit for density of fuel mentioned in the text?

• kg/m^2

• kg/m^3

• kg/m

• kg/m^3

Which instrument is used to measure viscosity of a fluid?

• Thermometer

• Hydrometer

• Viscometer

• Barometer

What is the most important characteristic in the storage and use of fuel oil?

• Specific Gravity

• Flash Point

• Viscosity

• Pour Point

What is the lowest temperature at which the fuel can be heated so that the vapor gives off flashes momentarily when an open flame is passed over it?

• Specific Heat

• Flash Point

• Pour Point

• Calorific Value

Which element is indicative of the source or extent of refining in fuel?

• Water Content

• Ash Content

• Carbon Residue

• Sulfur Content

What is the solid fuel left in the furnace after volatile matter is distilled off called?

• Proximate Analysis

• Fixed Carbon

• Volatile Matter

• Ultimate Analysis

Which stage in the formation of coal is the first stage?

• Bituminous

• Lignite

• Peat

• Anthracite

What is the process of removing impurities and separating out the oil into various fractions having different boiling points called?

• Cracking

• Polymerization

• Carbonization

• Petroleum Refining