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Bridge ConstructionGetting Delayed

unfavouribleweather

conditions

Unavailability ofConstruction

material

Equipment Problems

SubStandard

Equipment

OperatingTechnicians

not Available

Equipmentamage

Unavailability of  Equipment

Equipmentnot

procured

Equipmenot receiv

fromsupplie

Scarcity of!aw

"aterial

Shortageof

#unds

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 d

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LOGIC GATES and CONNECTORS used in MAKING a FAULT

      N     D

      O      R

 MAIN FAULT

or 

Intermediate Fault

BASIC EVENTS

or 

BASIC CAUSES

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  REE