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TCC 203 - Instrument

Total questions: 20

Worksheet time: 3hrs 20mins

Name
Class
Date
1.

____________ is a collective term for measuring instruments that are used for indicating, measuring and recording physical quantities.

a)

Instrumentation

b)

Controller

c)

Meaurement

d)

Data

2.

A physical or chemical property of a process that is measured and controlled.

a)

process variable

b)

controller

c)

measurement device

d)

electrical signal

3.

___________ is a physical quantity that expresses the degree of hotness and coldness of an object.

a)

Temperature

b)

heat

c)

pressure

d)

flow rate

4.

Often defined as the height of a liquid in a container.

a)

Level

b)

heat

c)

pressure

d)

flow rate

5.

The quantity of fluid (gas, liquid or vapor) that passes in a point per unit time.

a)

Level

b)

heat

c)

pressure

d)

flow rate

6.

________is a quantitative measure of the acidity or basicity of aqueous or other liquid solutions.

a)

pH

b)

heat

c)

pressure

d)

flow rate

7.

If the pH of water is zero, then it is ____________.

a)

acidic

b)

alkaline

c)

nuetral

8.

An instrument function that indicates the current condition of the process.

a)

indicator

b)

transmitter

c)

controller

d)

recorder

9.

Sends information to another component via a signal

a)

indicator

b)

transmitter

c)

controller

d)

recorder

10.

Keeps the record of the process variable.

a)

indicator

b)

transmitter

c)

controller

d)

recorder

11.

Maintains the PV at a specific quantity

a)

indicator

b)

transmitter

c)

controller

d)

recorder

12.

The most common electronics signal used in the process is 4 to (a)   mA

13.

_________ pressure, measures the pressure between two ports.

a)

Differential

b)

absolute

c)

Guage

d)

Atmospheric

14.

A sensor which when pressure is applied, the diaphgram changes between capacitive plates.

a)

resistance

b)

capacitance

c)

inductance

d)

conductance

15.

A sensor which when pressure is applied, the core moves up and down creating variable voltage

a)

resistance

b)

linear voltage differential transformer

c)

inductance

d)

conductance

16.

A type of sensor that uses quartz crystal that produces small voltage as they are compressed.

a)

piezoelectric

b)

linear voltage differential transformer

c)

inductance

d)

conductance

17.

The formula for pressure to level conversion.

a)

P = L x SG x k

b)

P = L x SG/ k

c)

P = L + SG + k

d)

P = L - SG x k

18.

The guage pressure reads 245.3 kPA. Calculate the level of the tank?

a)

25 m

b)

35 m

c)

45 m

d)

55 m

19.

What is the specific gravity of water?

(a)  

20.

When the current reads 16 mA, what is the equivalent pressure in kPA?

(note: in pressure scale each line has 125 kPA value)

(a)