5-Day Intensive Course
In
Advanced Instrumentation & Process Control
Abu Dhabi : 24 – 28 October
2010
Pre & Post Course
Test total grade is 100 grade
Participant Name:
_________________________ Date:
_____________
1. Safety through automation
To achieve safety through automation
in Process Plant Control Hierarchy shall include the followings: grade (10)
· ………………………………..,
· ………………………………..,
· ………………………………..,
· ………………………………..,
2. Control concept
Mention 4 objects of Control concept: grade (10)
·
………………………………..,
·
………………………………..,
·
………………………………..,
·
………………………………..,
3. Flow measurements grade (10)
Answer by True or False
True False
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·
Differential Pressure Transmitter is used to measure pressure variable
·

O/P
of analog Differential Pressure
Transmitter is digital signal


·

Differential
pressure transmitter equipped with two valve three way


Valve
manifold
·

Orifice plate is used to measure flow


·

Orifice as a method of flow measurement is
more




·

Electromagnetic
flow meter is based on differential pressure method


·
Electromagnetic flow meter is used to measure
nonconductive fluid
·

Venture
tube is used to measure viscous fluid


·

Retrievable
orifice plate is junior type


·

Volumetric
flow unit is ……kg/ hr


4. Pressure measurements grade
(10)
Answer by True or False
True False
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·
Pressure is force / unit area
·

Diaphragm
capsule is used as sensing element to


Measure
pressure variable
·

O/P
of smart Pressure Transmitter is digital
signal


·

pressure
transmitter equipped with three valve
five way


Valve
manifold
·

Pressure
gauge is used to measure flow


·



Pressure
variable unit ……kg/ cm2, psig, kbascal




·

Burden
tube is used to measure low pressure
value


·
Spiral / helical tube is used to measure high
pressure value
·

Drain
bot is used in vapor pressure measurement application


·

Piso
electric is pressure measuring element


5. Level measurements grade
(10)
Answer by True or False
True False
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·
Length cm/ mm/ inch are units of level measurements
·

Diaphragm
capsule is used as sensing element to


Measure
level in vessels / storage tanks
·

O/P
of analog level Transmitter is digital
signal


·

Displacer
/ float are sensing elements for level


·

Radar
tank gauging is accurate method of level measurement


·



Drib
ring is used to drain liquid upon calibration




·

level
glass is local level gauge procedure


·
Level glass types are reflex , transparent
·

Float type level switches are commen use in wast waterc /
swege systems


·

Reflex level glass is
used to measure interface level


6. Temperature measurements grade (10)
Answer by True or False True False
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·

Degree Fahrenheit / Celsius
are units of temperature measurements


·
Fahrenheit = Celsius * 9/5 +32
·

RTD/ TC are sensing elements to measure
temperature


·

Temperature thermometer is local temperature gauge


·

Thermal pulp is filled
with non voltile liquid


·

TC is based on platanium resisance wire


·

RTD Is based on two different metal/ cold and hot junctions


·

Thermal pulp cabilry
is filled with gas


·

RTD three wire is more
accurate than TC in temperature measurment


·

Three wire RTD is used to compansate for wire length


7. Gas measurements grade 10)
Answer by True or False
True False
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·

Catlytic type gas detector is used to measure gas
concentration


·
Open path gas detector is accurate
method in measuring
gas leak
·

Open path gas detector is based on infra red type


·

Advantge of catlytic gas detector is potential posisioning


·

Catlytic type gas
detector is point gas detector


·

Catlytic type gas detector is based on chemical reacation


and thermal effect
·

Gas components can be
detected by IR red / catlytic gas
detectors


·



·



8. PID Controller
(10)
Answer by True or False
True False
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·
proporational effect is direct
proporational with controller gain
·

Increasing proporational band increase gain


·

Integral effect is direct proporational with controller gain


·

Increasing integral increase gain


·

Derivative effect is direct proporational with controller
gain


·

Increasing derivative increase gain


·

Derivative action is used in all PID mode of operations


·

Increase derivative may lead to plant flactuation


·



Integral effect is to enhance and improve controller
algorithm




·
In pressure / flow / level control derivative effect is mandatory
9. HIPPS & SIL grade (10)
Answer by True or False True False
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·

HIPPS system is used to protect systemmagainst excesive flow
rate


·
HIPPS system is used to protect
systemmagainst excesive pressure
·
HIPPS system
is operated with single
hardware technique


·
HIPPS system
is fault tolrant
sysetm


·
IN HIPPS system
sensing device/
transmitters are single device


·

Safety integrity level study is done during plant normal
operation


·

Safety integrity level study is done to identify hazardous
condition


·

Safety integrity levels are
four levels


·

Safety integrity level 1. Is the hihest level that need


conservative
control system design
·
Safety integrity level 3. Is the
hihest level that need
conservative control system design 



10.
Pressure Reliving Devices (10)
Causes that
may cause pressure increase include the following: grade (10)
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-
Failure on Control&
S/ D Valves
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-
Power Failure
-
Instrument Air Failure

-
Human Error

-
Control System Failure

Benefits of
Installing Overpressure Devices:
-
Environmental
Protection,

-
Equipment Failure and Repeated S/D

-
Compliance with Governmental Code

-
Potential for Damage Due to High (or low) Pressure

Is Identifying during HAZID Study
Over
Protection Devices Types, One Of The Following Or All
-
Safety
Relief Valves

-
Pilot
Operated Valves

-
Rupture disk

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