TACN - ĐĐT - MULTIPLE CHOICE

Power amplification is derived from __________ and current amplification.

• alternate

• voltage

• direct

• amplifier

Common digital __________ are AND, OR, NAND gates and inverters.

• devices

• tables

• machines

• resistors

A truth table can be made for any logic __________.

• components

• gates

• levels

• circuits

In fact, all amplifiers are power amplifiers, because a voltage docs not __________without power.

• achieve

• exist

• convert

• store

Both input and output __________ of PLCs are modular.

• programs

• controllers

• computers

• interfaces

A sensor is a device that measures a physical __________and converts it into a signal.

• element

• quantity

• material

• characteristic

The__________of PIR sensors are: small, low cost, low-power, easy to use and widc lens range.

• characteristics

• disadvantages

• advantages

• quantities

PLCs arc programmed to __________ a controlling function.

• store

• regulate

• perform

• conduct

Circuit is a closed path around which a__________can flow.

• current

• voltage

• load

• devices

Transmission system consists of __________and metal frame.

• wires

• conductors

• rheostats

• generators