Quizzes 1

Question 1

The ____ is a technical society that develops standards related to instrumentation.

Answer 1

International Society of Automation (ISA)

Question 2

A tag number consists of a ________________.

Answer 2

function identifier and loop number

Question 3

The set-point refers to:

Answer 3

input that determines the operating point for the process

Question 4

Compared to an open-loop system, closed-loop control systems:

Answer 4

require feedback concerning the status of the process

Question 5

The devices used in automated control systems to provide information on the condition or state of the process variable are called:

Answer 5

Output devices

Calibrators

Reactors

NONE OF THE ABOVE correct answer

Question 6

I convert light energy directly into electric energy. Who am I?

Answer 6

Solar cell

Question 7

How many resistances are used in a Wheatstone bridge?

Answer 7

4

Question 8

If the high pressure system is located over Miami Beach, the atmospheric pressure may increase above 14.7 psi. T/F

Answer 8

True

Question 9

What is the device which has its output vary when the linkage attached to the pressrue sensor moves? (The device within the dashed box)

Answer 9

LVDT

Question 10

A barometer reading can be taken from a liquid column gauge. T/F

Answer 10

True

Question 11

The slower the conductive fluid flows through an electromagnet flow detector, the __________
the voltage induced.

Answer 11

smaller

Question 12

The differential pressure meter can be used to measure the flow rate of a liquid, but not a gas. T/F

Answer 12

True

Question 13

____________ are commonly used in industry to identify equipment that is running hotter than normal

Answer 13

Thermal imagers

Question 14

Load Cells can be used to accurately measure the solid or liquid level in a storage vessel T/F

Answer 14

True

Question 15

What type of temperature detector operates on this principle?

“When a junction consisting of dissimilar metals is heated, an EMF is produced.”

Answer 15

Thermocouple

Question 16

A PLC used as a loop controller can:

Answer 16

control more than one loop

perform PID modes of control

network with other controllers in a process environment

ALL OF THE ABOVE(correct answer)

Question 17

Components of a control system, like the one shown here, may include:

Answer 17

Sensors

Actuators

Amplifiers

All of the above correct answer

Question 18

Water density is 0.433 psi/ft

Suppose a liquid at 60F has a specific gravity of 6.14. If the measured pressure at the bottom of the tank in which it is stored is 20 psi, what is the height of the liquid?

The height of the liquid: ____________________ ft

Answer 18

7.52