Advanced Instrumentation & Process Control Course Test

 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

 

·         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

Accurate than ultra sonic 

·       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

 

·         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

 

·         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

 

·         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

 

·         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

 

·         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

 

·         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)

 

-        Failure on Control& S/ D Valves    

 

-        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