Safety Signs and Symbols used in Industries

 Industrial  Safety signs:

Warning sign -
This sign is give warning of danger or hazard
Warning sign

a sign giving warning of hazard or danger Overhead load -
There material handling going by Crain overhead
Overhead load

There material handling going by Crain overhead Caution -
Caution

There is obstacle in the way


material flammable.
Flammable material

The material flammable. Direction signs -
Direction signs
Direction signs

Used for route direction

Raised platform or height restriction -

Emergency fire exit -
Emergency fire exit
Emergency fire exit

First-aid facility -
First-aid facility
First-aid facility

Fire extinguisher -
Fire extinguisher

Fire extinguisher

Different types of fire classes and their prevention:
Class A Fires -
Fire involving combustible material like wood, paper, cloth, rubber, plastic requiring the heat absorbing effects of water, water solutions.
Class A Fires 

Fire involving combustible material like wood, paper, cloth, rubber, plastic requiring the heat absorbing effects of water, water solutions.

Class B Fires -
Class B Fires

This type of fire involves flammable or combustible liquids greases, petroleum products and' similar materials for extinction, a blanketing effect is essential.

Class C Fires -
Class C Fires

Which involves the flammable gases, substance under pressure including liquefied gasses. So it is necessary to dilute the burning gasses at very fast rate with an inert gas, Dry chemical powder or carbon-di-oxide.

Class D Fires -
Class D Fires
Class D Fires

Fire involving combustible metals like sodium, magnesium, zinc, potassium. These burning metal is react with water and water containing agent. fire requires special media to extinguish such as carbon-di oxide special dry chemical powder.

Comments

Post a Comment

Popular posts from this blog

Active and passive Instruments

Image
Active and Passive Instruments: Active and passive Instruments Passive Instruments: The instruments where the output is produced completely by the quantity that is measured are called passive instruments. The example of passive instrument is a pressure gauge.Fig  shows a pressure gauge. Passive  Instrument As the pressure in the liquid changes, the piston moves.The pointer is connected to the piston. No other source of energy is used. The liquid pressure is the only source. Thus,the piston and pointer movement while measurement is entirely dependent on the liquid pressure. Active Instruments: Active instruments are the instruments in which the quantity to be measured activates the magnitude of external power input source that produces the measurement. The liquid level indicator is an example of an active instrument.Fig.1.4.2 shows a liquid level indicator. Active Instruments The power source is required in order to se
Read more

Types of Electrical Energy

Image
 TYPES OF ELECTRIC ENERGY:     Electrical Energy in the methods of science,we immediately become suspicious of any scheme who claims to create energy. The law of conservation of energy is  that energy can neither be created nor destroyed. However, its form can be converted such that energy can be converted from one form of energy to another. Electric energy is the energy who converted from some other form. There are a numbers of way in which this is accomplished. Some of them are as follows: (1)Electrochemical energy conversion: Electric batteries produce electric energy with  the help of  conversion of chemical energy. A potentially important use of this type of batteries is in the electric car. Fuel cell is in this general classification. (2)Electromechanical energy conversion: The rotating generator produces electric energy from mechanical energy of rotation. Usually, the mechanical energy who converted from thermal energy by a turbine and, in turn
Read more

Basic Principles of Transducer

Image
Basic Principles of Transducer Pressure Transducer The task of a process control system is to control the physical parameters like force, pressure, level etc and to maintain their value near the desired value.This is because the physical parameters may vary due to disturbances. To maintain these parameters at a required level certain corrective action requires to be taken. Fig. shows a process control loop. Process control loop The process control loop consists of four blocks process,parameter measurement, control element and controller. It is essential to measure the actual value of parameter P to achieve proper feedback. Nowadays most of the controllers are electronic and hence they require an electrical input. Thus,the feedback signal is required in electrical form. The measurement block includes two functions like to measure the parameter and to produce a suitable analog signal in electric form. Sometimes the parameter measurement
Read more

Classification of Instrumentation System

Image
Classification of Instrumentation System Instrumentation system Null and Deflection type Instruments: Deflection type instruments: The instruments in which deflection of the instrument forms the basis of measuremenl are called as deflection type instruments. The example of deflection type instruments is the permanent magnet moving coil (PMMC) ammeter. PMMC AMMETER The deflection of the coil is proportional to the current that is to be measured. Torque Td, that acts on the moving coil is proportional to current.The opposing effect is produced by a spring, having torque Tc which is proportional to the deflection. When the spring is balanced Tc=Td. The value of the current depends on the deflection.Thus,the value of the measured quantity depends upon the calibration of the instrument. Null type Instruments The instrument in which, a null or zero indication will lead to the determination of the magnitude of the measured quantity such instruments are c
Read more

BASIC OF CHARGE AND CURRENT

Image
 CHARGE AND CURRENT: CURRENT concept of charge is based on atomic theory. We know that all matter is made up of fundamental building blocks called atoms and that the atoms,in turn,are composed of different kinds of fundamental particles. The three most important particles are the electron,the proton,and the neutron. The electron possesses negative charge,the proton possesses equal-magnitude positive charge and the neutron have neutral or has no charge at all. As we rub the rubber comb with woolen cloth,the comb acquires its negative charge because some of the electrons on the wool are rubbed off on to the comb;the cloth then has an insufficient number of electrons to maintain its electrical neutrality and thus behaves as a positive charge. When electrons are removed from the substance,that substance becomes a positively charged and the substance acquiring electrons from the other substance becomes a negatively charged. The basic unit of the charge,called the Coul
Read more