Instrumentation and Control Technician (447A) Certificate of Qualification Free Assessment
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Find the output rotation for the temperature system below. The equations for each sub-system are as follows: Thermocouple 3 mV per oC. Amplifier gain 5 Meter 0.02o per mV
a) 54°
b) 180°
c) 90°
d) None of the above
How many time constants are there from the start of a process reaction curve before reaching the maximum value of the curve.
a) 1
b) 5
c) 7
d) 10
An instrument location shows what information?
a) Location of an instrument
b) Location, serial number and model
c) Location, type and operating environment
d) Location, elevation and tag number
Load cells are used for the measurement of:
a) stress
b) weight
c) strain
d) velocity
Which of the following describes the type of pump shown?
a) Rotary Lobe Pump
b) Screw Pump
c) Gear Pump
d) Valve Rotary Pump
In most process conrol systems, the final control element is a:
a) Transmitter
b) Controller
c) Valve
d) None of the above
What is the span of a thermometer with range -30°C to +250°C?
a) 200°C
b) 220°C
c) 250°C
d) 280°C
A potentiometer produces 50mV per degree of rotation of its shaft. Calculate the angle when the output is 4 V.
a) 80°
b) 100°
c) 12.5°
d) 120.5°
The ability of the instrument to correctly indicate or record change in value of the measured variable is called:
a) Accuracy
b) Precision
c) Fidelity
d) Resolution
If the peak voltage of a circuits is 169.68 volts, what will an AC voltmeter read?
a) 138V
b) 208V
c) 120V
d) 230V
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