WorksheetsRECAP DBH4 2024-25
Total questions: 40
Worksheet time: 20mins
Name
Class
Date
1.
What is the standard voltage in domestic electrical installations in Spain?
a)
230V
b)
110V
c)
400V
d)
12V
2.
Which device protects people from electric shocks?
a)
ID
b)
ICP
c)
PIA
d)
IGA
3.
What does PIA stand for?
a)
Pequeño Interruptor Automático
b)
Power Interface Adapter
c)
Personal Intelligent Assistant
d)
Power Internal Amp
4.
What triggers a power cut if the power consumption exceeds the contracted limit?
a)
ICP
b)
ID
c)
PIA
d)
IGA
5.
Which circuit is responsible for lighting in a domestic installation?
a)
C1
b)
C5
c)
C2
d)
C3
6.
What color is the phase cable?
a)
Black/Brown/Grey
b)
Blue
c)
Green/Yellow
d)
Red
7.
What is the function of the earth cable?
a)
Protect from leakage
b)
Supply voltage
c)
Return current
d)
Heat insulation
8.
What does a residual current device measure?
a)
Current difference
b)
Voltage drop
c)
Power factor
d)
Frequency
9.
What is domotics?
a)
Home automation technology
b)
A type of architecture
c)
Manual control system
d)
Solar panel system
10.
Which of the following is NOT a purpose of domotics?
a)
Increase power supply
b)
Enhance safety
c)
Increase comfort
d)
Reduce energy consumption
11.
Which component stores hot air in bioclimatic houses?
a)
Solarium
b)
Thermal wall
c)
Solar panel
d)
Canopy
12.
What does bioclimatic architecture aim to reduce?
a)
Heating and cooling needs
b)
Electric bill
c)
Wall thickness
d)
Building size
13.
In which climate are whitewashed buildings commonly used?
a)
Hot
b)
Cold
c)
Humid
d)
Tropical
14.
What type of system uses compressed air?
a)
Pneumatic
b)
Hydraulic
c)
Electric
d)
Thermal
15.
Which component generates compressed air?
a)
Compressor
b)
Regulator
c)
Accumulator
d)
Filter
16.
What device ensures excess pressure is released in an air tank?
a)
Safety valve
b)
Lubricator
c)
Flow meter
d)
Gauge
17.
What is a solenoid used for in pneumatics?
a)
Controlling valves electrically
b)
Generating air
c)
Measuring flow
d)
Cooling circuits
18.
Which cylinder has two air intakes?
a)
Double-acting
b)
Single-acting
c)
Rotary
d)
Vane
19.
Which valve type is used in an 'AND' logic circuit?
a)
Dual-pressure valve
b)
3/2 valve
c)
Shuttle valve
d)
Flow regulator
20.
What is the key difference between pneumatic and hydraulic systems?
a)
Compressibility
b)
Speed
c)
Power
d)
Design
21.
Which device amplifies weak signals in electronics?
a)
Transistor
b)
Resistor
c)
Diode
d)
Relay
22.
What does LED stand for?
a)
Light Emitting Diode
b)
Light Emission Device
c)
Low Energy Display
d)
Long-lasting Emission Diode
23.
Which component allows current to flow in only one direction?
a)
Diode
b)
Transistor
c)
Relay
d)
Thermistor
24.
What is a thermistor used to measure?
a)
Temperature
b)
Voltage
c)
Current
d)
Light
25.
What happens to an NTC thermistor's resistance as temperature increases?
a)
Decreases
b)
Increases
c)
Stays the same
d)
Turns off
26.
What does a relay do?
a)
Open/close circuits
b)
Measure temperature
c)
Store electricity
d)
Emit light
27.
Which sensor detects light?
a)
LDR
b)
Thermistor
c)
Relay
d)
Transistor
28.
What is a microcontroller in a 3D printer responsible for?
a)
Controlling operations
b)
Moving parts
c)
Heating
d)
User interface
29.
What type of manufacturing does a 3D printer use?
a)
Additive
b)
Subtractive
c)
Mechanical
d)
Optical
30.
What part of the 3D printer melts the filament?
a)
Extrusion head
b)
Glass base
c)
Screen
d)
Stepper motor
31.
Which motion does a rotary pneumatic cylinder produce?
a)
Rotational
b)
Linear
c)
Oscillating
d)
Zigzag
32.
What is the function of a flow regulator?
a)
Control air flow speed
b)
Reduce current
c)
Cool system
d)
Detect leakage
33.
Which valve allows multiple input paths in pneumatics?
a)
Shuttle valve
b)
3/2 valve
c)
Dual-pressure valve
d)
Check valve
34.
Why are green roofs beneficial?
a)
Insulation
b)
Aesthetic only
c)
Energy generation
d)
Rain collection
35.
Which actuator is used for lifting loads with precise control?
a)
Hydraulic cylinder
b)
Solenoid
c)
Relay
d)
Diode
36.
Why are hydraulic systems not used with compressible fluids?
a)
Liquids can’t be compressed
b)
Too slow
c)
Too expensive
d)
Not precise
37.
What does a barcode scanner do in an automated system?
a)
Capture data
b)
Move objects
c)
Scan weight
d)
Open valves
38.
Which type of printer builds objects layer by layer?
a)
3D printer
b)
Laser printer
c)
Thermal printer
d)
Inkjet printer
39.
What kind of logic function activates only when both inputs are active?
a)
AND
b)
OR
c)
NOR
d)
XOR
40.
What component lets you operate pneumatic cylinders automatically?
a)
Solenoid valve
b)
Regulator
c)
Compressor
d)
Sensor
100 %
