Fire Tube Boiler

A shell and tube heat exchanger in which steam is generated on the shell side by heat transferred from hot gas/fluid flowing through the tubes.

Flue gas

The gaseous product of combustion including the excess air.

Ferrite, Cementite, Pearlite & Austenite

alpha-Iron is Ferrite
Fe3C - Cementite
Ferrite + Cementite is Pearlite
Gamma-phase Iron is Austenite

Sublimation Line, Fusion Line & Vaporization Line

The line that separates the solid and vapor phases is called the sublimation line. 

The line that separates the solid and liquid phases is called the fusion line. 

The line that separates the liquid and vapor phases is called the vaporization line.

Sublimation, Vaporization, Condensation and Fusion or Melting

Sublimation - change of phase from solid to vapor

Vaporization - change of phase from liquid to vapor

Condensation - change of phase from vapor to liquid

Fusion or melting - change of phase from solid to liquid

First Law of Thermodynamics

Energy can neither be created nor destroyed, only altered in form.

Froude's Number

It is defined as the square root of the ratio of inertia force of a flowing fluid to the gravity force.

F.O.B. (Free on Board)

Pertains to a transaction whereby the seller makes the product available within an agreed on period at a given port at a given price; it is the responsibility of the buyer to arrange for the transportation and insurance.

Fire tube boilers:

• It is boiler with heat source inside the tubes and water to be heated is outside(shell side)

Fractography

Fractography is the study of fracture surfaces of materials to determine the cause of failure. The method is used to study fracture surfaces in any material, such as metals, ceramics, glasses and polymers.

Fracture mechanics

Fracture mechanics is a method for predicting failure of a structure containing a crack. It uses methods of analytical Solid mechanics to calculate the driving force on a crack and those of experimental Solid mechanics to characterize the material's resistance to fracture. 

Fracture mechanics can be divided into linear elastic fracture mechanics (LEFM) and elasto-plastic fracture mechanics (EPFM). 

Tense - Present / Past / Future - Simple / Continuous / Perfect / Perfect Continuous

Tense
Tense means time

Present Tense
A verb that refers to present time is said to be in the present tense

Past Tense
A verb that refers to past time is said to be in the past tense

Future Tense
A verb that refers to future time is said to be in the future tense

Present Continuous Tense
The present continuous tense is used for an action that is still going on or continuing

Present Perfect Tense
The present subject is used to indicate completed activities in the immediate present

Present Perfect Continuous Tense
The present perfect continuous is used for an action which began at some time in the past and is still continuing

Past Continuous Tense
The past continuous is used to denote an action going on at some time in the past

Past Perfect Tense
The past perfect is a verb that shows that the action had been finished before another action in the past

Past Perfect Continuous Tense
The past perfect continuous is used for an action that began before a certain period in the passt and is continued up to that time

Future Continuous Tense
A verb showing an action that will be going on or continue for some time in the future.

Future Perfect Tense
The future perfect is used to talk about actions that will be completed by a certain future time.

Future Perfect Continuous Tense
It is used for actions which will be in progress over a period of time that will end in the future.

Fixed rate of interest

Fixed Rate of Interest on a loan means that interest rate is fixed for the

entire period of the loan or it may be revised after the first few years

depending upon the terms and conditions of loan.

Feminine Gender

A noun that denotes a female animal is said to be of the feminine gender.

Finite Set

A set which contains limited or countable number of element is called a finite set.

Floating rate of interest

Floating Rate of Interest on a loan means that interest rate is not fixed

but is linked to Reference Rate and would vary in proportion to the

variations in the latter as per the terms and conditions of loan.

Factoring

Factoring is a financial option for the management of receivables. It is the

conversion of credit sales into cash.

Fire tube boilers

• It is boiler with heat source inside the tubes and water to be heated is outside(shell side)

Fund of Funds (FoF) scheme

A scheme that invests primarily in other schemes of the same mutual fund or other mutual funds is known as a FoF scheme. An FoF scheme enables the investors to achieve greater diversification through one scheme. It spreads risks across a greater universe.

FILTRATION

It is a process of separating very fine undissolved solid particles present in a liquid quickly or completely.