Process Control NCV Level 3 — Document

November 2018 — NCV Level 3 — Process Control

NCV Level 3 2018 NCV Engineering

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Q1— Section header —

1.1.10\in the ANSWER BOOK.

1.1A t hermometer is an example of an analogue instrument

1.2Manual recording involves capturing measurements on a computer

1.3One of t he advantages of the SI unit is that no conversions are necessary because there is one unit for each quantity

1.4A b arometer is an instrument used to measure atmospheric pressure

1.5A d ifferential u tube has one closed leg

1.6Sight glasse s can be used for highly viscous liquids

1.7A float type gauge produces reliable results when used for clean liquids

1.8An indicator is a manually readable device that displays the process information sent to it by the transmitter

1.9Digi tal video recorders record and store video camera output in digital form on the disc

1.1010

2.1.5\ the ANSWER BOOK. ocal display ; remote; humidity; concentration; actuator

2.1strument that take measurements that is not in close proximity to the materials or product it

2.2mechanical device for moving or controlling a mechanism o system

2.3is in the vicinity of or in close proximity to the o bject being measured

2.4moisture in the air

2.55

Q3— Section header —

3.1Weir

3.2Oval gear meter

3.3Differential flow meter

3.4Rotameter

3.55

Q4— Section header —

4.1Explain the working principles of a rotameter. (10\

4.2Explain the function of interlocks in process control. 2\

4.3

4.4Define saturated steam (2\

4.5Describe feed forward control system. (2\

4.6Define distillation (3\

4.727

5.1Explain, with the aid of a diagram, the working principles of a steam heater. (14\

5.2The following diagram shows a typical integration of the elements of a control system. Explain the interconnections and joint functionality of the system. (10 [24]24

Q6— Section header —

6.1Name THREE signal transfer methods and explain each (3 3\ (9\

6.2State the purpose of a thermostat (2\

6.3Briefly explain the importance of the FOUR safety de vices found in the process plant (2 4\ (8\

6.4What is the difference between digital instruments and analogue instruments? (4\

6.5What is the difference between local display and remote display? (4\

6.6Why is it that the smaller the piston diameter in a gauge tester the higher the pressure created in the system? (2\ [29] TOTAL:29

Mark Allocation

Total100 marks

Sections10 + 5 + 5 + 27 + 24 + 29 = 100 marks

Paper information

TitleDocument

SubjectProcess Control

LevelNCV Level 3

Document typeQuestion paper

Year2018

MonthNovember

Pages5

Downloads3

Examination context

Decade2010s

Years ago8y

SeasonSpring (SH)

Start dayThursday

Exam periodNovember 2018

Days since exam2,900

About Process Control examination preparation

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How to use this resource for revision

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A practical revision approach

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