This document provides an overview of fluid mechanics, firefighting tactics, and safety courses and job opportunities. It discusses key fluid properties and the differences between liquids and gases. It outlines basic firefighting tactics like rescue operations, fire containment, and extinguishing. It also lists various safety-related diploma and certificate courses and potential jobs in industries like oil refineries, ports, airports, and construction that safety graduates may be suited for.
2. FLUID PROPERTIES: FLUID WILL HAVE FOLLOWING PROPERTIES:
a) FLUID WILL HAVE FREE FLOW
b) FLUID WILL NOT HAVE DEFINITE SHAPE
c) FLUID WILL HAVE SHEAR STRESS.
DIFFERENCE BETWEEN LIQUIDS AND GASES:
LIQUIDS
GASES
LIQUID ARE RELATIVELY INCOMPORESSIBLE
GASES ARE READILY COMPRESSIBLE
LIQUIDS HAVE HIGH SPECIFIC MASS
GASES HAVE LOW SPECIFIC MASS
LIQUIDS HAVE FREE SURFACE
GASES DO NOT HAVE FREE SURFACE
OCCUPIES DEFINITE VOLUME
GASES OCCUPIES VESSEL COMPLETELY
3. TYPES OF LIQUID:
PROPERTIES OF FLUID: AMONG MANY FLUID, WATER IS THE
MAIN FLUID WHICH IS DISCUSSED IN THIS SUBJECT AND THE
SAME HAS GOT FOLLOWING PROPERTIES:
a) MASS DENSITY
b) SPECIFIC WEIGHT
c) SPECIFIC GRAVITY
d) ADHESION
e) COHESION
f) SURFACE TENSION
4. g) CAPPILARY
h) COMPRESSIBILITY
i) VISCOCITY
VISCOCITY
FACTORS AFFECTING VISCOCITY
TEMPERATURE:
PRESSURE:
PRESENCE OF OTHER SUBSTANCE:
SIZE AND WEIGHT OF ADDED MOLECLULE
COHESION AND ADHESION
SURFACE TENSION
5. LIQUID VAPOUR
THE LIQUID SUBSTANCEWILL GO INTO VAPOUR STATE EITHER
BY EVAPORATION OR BY BOILING. THE FOLLOWING FACTORS
WILL DFETERMINE THE SPEED OF THE VAPOURIOSATION
a) FREE SURFACE EXPOESED
b) THE MOTION OF AIR
c) BOILING POINT OG LIQUID
d) TEMPEARTURE OF LIQUID
VAPOUR PRESSURE
VAPOUR DENSITY
ARCHIMEDIES PRINCIPLE
CENTRE OF GRAVITY AND BOUYANCY
METACENTRE
6. META CENTRIC HEIGHTS
PASCAL LAW
ATMOSPHERIC PRESSURE
CHARACTER OF PRESSURE:
THE PRESSURE OF FLUID IS HAVING FOLLOWING
CHARACTER:
a) PRESSURE IS PERPENDICULAR TO ANY SURFACE ON WHICH
IT ACTS
b) VALUE OF PRESSURE IS SAME AT ALL POINTS IN FLUID AT
REST.
c) PRESSURE APPLIED ON A FLUID AT ONE POINT WILL BE
TRANSMITTED TO ALL POINTS
7. a) DOWNLOAD PRESSURE OF A FLUID IN AOPEN VESSEL IOS
PROPOTIONAL TO ITS DEPTH
b) DOWNWARD P[RESSURE OF A FLUID IN OPEN VESSEL TO
THE DENSITY OF THE FLUID
c) THE SHAPE OF THE VESSEL WILL NOT AFFECT THE
BOTTOM PRESSURE
PRESSURE MEASURING INSTRUMENTS:
THE BAROMETRES :
THE BOURDON GAUGE:
8. LESSON 4
TACTICS OF FIRE FIGHTING
INTRODUCTION:
THE BASIC TACTICS OF FIGHTING A FIRE CAN BE DIVIDED INTO
THE FOLLOWING CATEGORIES
a) RESCUE OPERATIONS OF TRAPPED PERSONNEL
b) CONFINEMENT OF THE FIRE AND PREVENTS SPREADING
c) EXTINGUISING THE FIRE
9. SALVAGE OPEARTIONS
VENTILATONS CONTROL
SMOKE CLEARANCE
ANTICIPATING TREATS
BASIC TACTICS:
REMEDIES:
REPORT AND ACTION:
SMOKE COMING FROM CLOSED DOOR:
10. FIRE IN OPEN DOOR ROOM:
SEARCH AND RESCUE:
ACCESS TO FIRE:
ACCESS BY CUTTING/ BREAKING:
ACCESS BY LOWERING MAN TO THE SIDE:
11. BEFORE OPENING A DOOR: OPENING THE DOOR IS TO BE
DONE WITH CAUTION AS THE FRESH FLOW OF AIR WILL
START EXPLOSION. THE FOLLOWING POINTS ARE TO BE
KEPT IN MIND WHILE OPENING IN THE CLOSED ROOM.
a) CONNECT HOSES OF SUFFICIENT LENGTH TO REACH
ACROSS THE ROOM CONTAINING FIRE. THE WATER
SUPPLIES SHOULD BE TAKEN FROM SEPARATE HYRANTS,
AND Y PIECES SHOULS NOT BE USED
12. b) PREFERABLY, THE HYDRANTS SUPPLYING TO WATRER WALL
OPERATORSAND FIRE FIGHTERS SHOULD BE FED FROM
SEPERATE PUMPS
C) CONNECT CORRECT NOZZLES WITH HOISES FOR WATER
WALL OPEARTORS AND FIRE FIGHTERS RESPECTIVELY
d) IF A LIQUID FUEL FIRE IS SUSPECTED, FOAM – MAKING
BRANCH PIPE WITH AQN INLINE INDUCTION IS TO BE USED
INSTEAD OF NOZZLES BY THE FIGHTER
e) IF FOAM IS TO BE USED, IMSERT THE SPILL PICK UP INTO
THE CONTAINER OF AFFF 20 LITRE CONTAINER
f) IF THE DOOR OPEND AWAY FROM THE FIRE FIGHTER A WIRE
ROPE SHOULD BE ATTACHED TO THE HANDLE SO THAT
THE DOOR CAN BE PULLED QUICKLY, IF NECCESSARY
13. COURSES:
Diploma in occupational Health And Safety
Diploma in industrial safety
Diploma in electrical safety
Diploma in fire fighting
Diploma in construction safety
Certificate in fire and safety engineering
Diploma in fire and safety engineering
PG diploma in fire and safety engineering
Certificate in oil and Gas safety
Diploma in oil and Gas safety
Diploma in health ,safety and Environment
PG diploma in Health ,safety Environment
14. JOB PLACEMENT
NSA will give100% job placement assistance to all
successful candidates. Some of the Industries are listed
below.
Oil Refineries,
Port trust,
Airport,
Chemical Industries,
Insurance,
Construction and
service industries are main job providers.
Students passed out from this institute can find job
opportunities as Safety Supervisor, Safety Inspector,
Safety Officer, Safety Manager, Fireman and Fire Officer.