WorksheetsElectrical Technology
Total questions: 10
Worksheet time: 5mins
What is the function of a solenoid?
Generate electricity
Create a magnetic field
Control the flow of liquids
Produce heat
What is the structure of a solenoid?
Copper conductor
Coil of wire and iron core
Plastic tubing
Aluminum casing
What is the primary application of solenoids in electropneumatic controls?
Switching of valves
Generating sound waves
Measuring pressure
Controlling temperature
What is the construction of a relay?
Hydraulic pump
Pneumatic cylinder
Mechanical lever
Electromagnetically actuated switch
What is the function of a retentive relay?
Responds to current pulses
Isolation of control circuit from main circuit
Signal multiplication
Delaying and conversion of signals
What is the purpose of a time relay?
To delay the switching of contacts
To switch high currents
To generate electricity
To control temperature
What are the typical features of a contactor?
Open chambers
Double switching
Single switching element
Negative-action contacts
What is the primary application of contactors?
Switching of valves
Generating sound waves
Measuring pressure
Control functions and logical associations
What is the main difference between a solenoid and a contactor?
Structure and design
Material and color
Size and weight
Function and application
What is the purpose of the iron core in a solenoid?
To increase the strength of the magnetic field
To generate electricity
To reduce the magnetic field
To control the flow of liquids
