pop quiz 1 Grade 12 H

The purpose of an evaluation is to _________________________________________.

• describe the needs of the user or customer

• create new ideas which will be made

• think of advantages & disadvantages

• test a design model to see if it works

In the Design Process, the first stage is the ___________________.

• analysis

• realisation

• evaluation

• brief

It is important to have a schedule in the ‘Design Process’ to ___________________.

• plan and deliver a product on time.

• research existing products

• create a design idea

• decide the materials to be used

When a 555 timer IC is wired in monostable mode it has _______________________.

• one stable state that does not change

• one stable state that only changes when an internal trigger is applied

• two stable states that do not change

• one stable state that only changes when an external trigger is applied

A 555 timer IC chip __________________________________________________.

• has six pins or terminals

• can generate pulses of variable duration.

• controls the flow of electrical current

• can be used to store an electric charge

A ________________ has two conducting plates separated by an insulator.

• transistor

• trigger

• capacitor

• resister

A condenser microphone acts as a sound ___________in the Clap On / Off circuit.

• sensor

• controller

• transmitter

• Emitter

Which term describes the layout of the LEDs shown in the image below?

• parallel

• partial

• Series

• sequenced

what the role of the IC7474 chip is to _______________________________.

• act as a timer chip

• store data

• power the LED

• generate current

Transistor is a device with ______________________ terminals

• 2

• 1

• 4

• 3