QUIZ 2 CONTROL

Question 1

a device which is primarily used as an electromagnet used to drive a plunger for
the purpose of control actuation.

Answer 1

SOLENOIDS

Question 2

an electric current applied to the solenoid generates an EMF which
moves an armature connected to the valve stem

Answer 2

SOLENOID VALVE

Question 3

By using pilot control, the size of the solenoid Can be kept to a
minimum.

Answer 3

PILOT SIGNAL FLOW

Question 4

-are electro-magnetically actuated switches. They consist of a housing with
electromagnet and movable contacts. An electromagnetic field is created when a voltage is
applied to the coil of the electromagnet. This results in attraction of the movable armature to the
coil core. The armature actuates the contact assembly.This contact assembly can open or close
a specific number of contacts by mechanical means. If the flow of current through the coil is
interrupted, a spring returns the armature to its original position

Answer 4

RELAYS

Question 5

Logic operations are functions which link binary signals according to
the rules of Boolean algebra. Four basic logic operations are available for this purpose

Answer 5

BASIC LOGIC FUNCTION

Question 6

Input and output signals have the same status

Answer 6

IDENTITY

Question 7

The output signal has the opposite value to the input signal

Answer 7

NEGATION

Question 8

The output signal only has the value 1, if all the input signals
have the value 1

Answer 8

CONJUNCTION

Question 9

The output signal has the value 1, if at least one of the input signals has the
value 1.

Answer 9

DISJUNCTION

Question 10

is a technical converter, which converts a physical value such as temperature,
pressure, flow, or distance, into a different value which is easier to evaluate. This is usually an
electrical signal such as voltage, current, resistance or frequency of oscillation

Answer 10

SENSOR

Question 11

A signal with a single parameter where the parameter can be situated in only
two ranges. The signal contains two items of information, such as YES-NO or ON-OFF.

Answer 11

BINARY SIGNAL

Question 12

A signal where each point in a continuous range of values of the signal
parameter conveys different information.

Answer 12

ANALOG SIGNAL

Question 13

mechanical in nature, subject to mechanical wear and with predictable failure
rate. Contact sensors include limit switches, roller switches, and pressure sensors

Answer 13

CONTACT SENSOR

Question 14

Proximity sensors (reed switch, inductive, capacitive, and optical
sensors).

Answer 14

CONTACTLESS SENSOR

Question 15

10-30 V DC, 4mm, 800Hz (max)

Answer 15

INDUCTIVE PROXIMITY SENSORS

Question 16

0-30 V DC, 4mm, 100Hz (max)

Answer 16

CAPACITIVE PROXIMITY SENSORS

Question 17

10-30 V DC, 0-100 mm (adjustable), 200 Hz (max)

Answer 17

OPTICAL PROXIMITY SENSORS