Week 3 block zones etc #flowol #computer science

in this scenario, what would input 3 be for?

• tell the computer that the barrier had successfully lowered

• tell the computer that the lights are on

• tell the computer that the train had safely passed the crossing

in this scenario, what would input 2 be for?

• tell the computer that the barrier had successfully lowered

• tell the computer that the lights are on

• tell the computer that the train had safely passed the crossing

what action should the computer taken when input 2 comes on? (select 2)

• turn on the actuator (motor) to lift the gate

• turn on the actuator to lower the gate

• switch off the warning lights on the road

• switch on the warning lights on the road

Which sensor tells the computer that the train will be arriving at the crossing?

What commands can the computer give to the motor/actuator "mot a"?

• on / off

• forward / reverse

• forward / reverse / off

What should be activated when input 3 detects jar?

Answer explanation

Motor C is the correct answer

On the actual jam production line, what would Motor C do the the jam jar?

Answer explanation

It puts on the lid / attaches the label

Final question: in this scenario, look at the outputs. Some are lights, some are actuators. Which actuator would you switch on to make it safe?

Answer explanation

you could either lower the bridge or the road barrier (right barr)