Units of Heat and Calorific Value Quiz

Play an AI-generated podcast conversation about this lesson

What is the calorific value in BThU of 1 kcal?

3.968 (correct)

1.252

2.2

0.252

In the Bomb Calorimeter method, what is the purpose of burning a known quantity of fuel?

To calculate the water equivalent of calorimeter

To heat up the water (correct)

To cool down the water

To measure the temperature of the water

What is the calorific value in CHU of 1 kcal?

0.252

3.968

1.252

2.2 (correct)

In the FPS system, how is 1 BThU defined?

The amount of heat required to raise the temperature of 1 pound of water by 1OF at 60-61OF Signup and view all the answers

How many calories are equal to 4.184 joules?

418.4 Signup and view all the answers

What process is used to split bigger hydrocarbons into smaller hydrocarbons?

Cracking Signup and view all the answers

Which type of coal contains the highest percentage of volatile matter?

Peat Signup and view all the answers

What is the octane number of iso-octane (2,2,4-trimethyl pentane)?

100 Signup and view all the answers

How can incomplete combustion be best identified in flue gases?

Measuring CO levels Signup and view all the answers

What is the primary purpose of steam reforming methane with a Ni catalyst?

To obtain hydrogen and carbon monoxide Signup and view all the answers

In which industry is liquid hydrogen commonly used as a fuel?

Aerospace industry Signup and view all the answers

What is the purpose of treating crude oil with hot CuO?

To separate sulphur from crude oil Signup and view all the answers

How is water removed from crude oil during the refining process?

By passing the crude oil between electrodes Signup and view all the answers

In the fractional distillation of crude oil, which component gets condensed first?

The component with the highest boiling point Signup and view all the answers

What is the main principle behind fractional distillation of crude oil?

The component with the highest boiling point condenses first Signup and view all the answers

Why is a fractionating tower used in the process of fractional distillation?

To allow different components to condense at their respective boiling points Signup and view all the answers

What is the purpose of Proximate Analysis of coal?

To analyze the percentage of moisture and volatile matter in coal Signup and view all the answers

Which statement best describes the coalification process?

Converting wood into peat, lignite, bituminous, and anthracite Signup and view all the answers

What is the main difference between GCV and NCV when analyzing coal?

GCV accounts for the heat released by combustion, while NCV considers the moisture evaporated Signup and view all the answers

What does the percent fixed carbon in coal represent?

The carbon content that remains after the volatile matter is driven off during combustion Signup and view all the answers

What is the primary reason for considering coal as a highly carbonaceous matter?

Its formation from gradual decomposition of wood and inorganic matter Signup and view all the answers

What occurs during the coalification process from wood to anthracite?

Increase in heating value Signup and view all the answers

What is the main difficulty in the storage and transportation of Hydrogen gas?

Occupies large volume per unit weight Signup and view all the answers

How is liquid Hydrogen mainly transported?

In cryogenic trailers Signup and view all the answers

In the process of combustion, what is the general outcome with regards to heat production?

Evolution of heat Signup and view all the answers

What is considered dry flue gas in the context of combustion?

By-products of combustion without moisture content Signup and view all the answers

In air quantity calculation for combustion, what percentage of O2 does air contain by volume?

23% Signup and view all the answers

For gas fuels, how is the actual air volume required calculated during combustion?

$Vol of O2 x (100 + % excess air)$ Signup and view all the answers