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WorksheetsElectrical mock part 3
Total questions: 48
Worksheet time: 27mins
Why do superheroes of safety perform a risk assessment?
To ensure they can complete their missions at lightning speed.
To ensure they protect the world (and themselves) from danger.
To make sure their superhero suits are always on point.
To ensure they're following the superhero code of conduct.
Imagine you're a superhero tasked with cleaning a light fitting attached to a mysterious material that might be asbestos. What's your move?
Refuse, unless specific training has been given.
Use a damp, lint-free cleaning cloth to contain the dust.
Use an appropriate vacuum cleaner to remove any dust.
Refuse, unless planning permission has been granted.
Ready for a blast from the past? Before we give a 1960s office block a modern makeover, what type of asbestos survey do we need to conduct?
Type 1.
Type 2.
Type 3.
Type 4.
Guess what! On a bustling construction site, what vibrant colour should a 230 V extension lead flaunt?
Red.
Yellow.
Blue.
Violet.
Who does an architect work their magic for?
The ever-curious quantity surveyor.
The diligent clerk of works.
The bustling site manager.
The dream-chasing customer.
🌟 Hey there, savvy consumer! Can you guess which industry organization champions your interests like a superhero? 🌟
Electrical Safety First.
Joint Industries Board.
JT Ltd.
UNITE.
Let's dive into the electrifying world of physics! Can you tell me what 'Current' is all about?
The exciting journey of electrons zooming around in a given time.
The energy joyfully consumed by a resistance in its dance.
The force stubbornly opposing the electric party.
The force enthusiastically cheering on the flow of electricity.
Imagine you're an electron surfing through a circuit with a current of 16.5 mA. Can you convert this rad ride into amperes for me?
1.65 A
0.165 A
0.0165 A
0.00165 A
Ready to power up your knowledge? Let's dive into the world of physics! What is the unit of measurement for Energy?
Joule.
Amp.
Volt.
Hertz.
🚀 Let's embark on a math adventure! Can you masterfully rearrange the mystical formula below to unveil V as the hero of our story?
V = √(PxR)
V = P × R
V = P/√R
V = P²R
Let's dive into the electrifying world of physics! Can you tell me what the unit of measurement for resistance is?
(a)
Ready to power up your brain? Which electrifying law tells us that voltage and current are like best friends, always moving together in harmony?
Kirchoff’s Electric Adventure
Ohms Law: The Power Saga
Watts Law: The Voltage Chronicles
Tesla’s Law: The Current Mystery
Imagine you're an electrician tasked with a thrilling mission: to ensure the smooth flow of electricity through a copper conductor. But here's the twist - the conductor has a resistivity of 0.0172 µΩ/m, faces a resistance of 0.55 Ω, and stretches a length of 80 m. Can you calculate the csa (cross-sectional area) of this vital copper pathway?
1.0 mm2
1.5 mm2
2.5 mm2
4.0 mm2
Imagine you're an electrician tasked with a thrilling mission: to determine the resistance of a daring 150 m long copper wire, boasting a cross-sectional area of 10 mm2. Given copper's resistivity of 1.72 x 10-8 Ω/m, can you calculate the resistance and save the day?
2.58 Ω
0.258 Ω
0.0258 Ω
0.00258 Ω
🌟 Hey there, future scientist! Can you guess which cool tool we'd use to measure the flow of electric current? 🌟
Voltmeter
Ammeter
Ohmmeter
Wattmeter
Imagine you're a superhero with the power to control electricity. You've encountered a challenge where you need to draw a current of 2.5 A to deactivate a villain's device. The only tool you have is a 200 V DC supply. What value of resistance would you choose to save the day?
60 Ω
80 Ω
100 Ω
500 Ω
Imagine you're an electrician tasked with a fun challenge! You have a circuit with three quirky resistors that just want to work together. They are of 1.5 Ω, 4 Ω, and 12 Ω, and they're all connected in parallel, like a team, across a lively 10 V supply. Your mission, should you choose to accept it, is to figure out the total current that's joyfully dancing through this circuit. Can you do it?
0.83 A
2.5 A
6.67 A
10 A
Ready to be an electron detective? 🕵️♂️ Let's crack the case: In which direction do these sneaky electrons really flow?
Negative to positive
Left to right
Positive to Negative
Right to left
Ready to become a magnetic flux master? What's the official unit of measure for this magnetic marvel?
Weber
Tesla
Kelvin
Hertz
Imagine you're a superhero, zipping through a magnetic field at a speed of 5 m/s. Your super suit has a special conductor that's 0.25 m long. As you fly, what's the induced EMF generated by your suit in this 1.6 Tesla magnetic field?
6.85 V
3.15 V
2 V
0 V
Imagine you're a wizard of the wind, tasked with powering a magical three-line, four-wire system using only your generator. What's the least number of windings you'd enchant your generator with?
1
2
3
4
Imagine you're a superhero with the power of electromagnetism, and you're using Fleming’s right hand rule to save the day! What does the first finger represent in this electrifying scenario depicted in Figure 3?
Field.
Motion.
Current.
Velocity.
Ready to power up your knowledge? Let's dive into how a single-loop, AC generator sparks to life! What's its secret sauce?
Electromagnetic reduction.
Electromagnetic radiation.
Electromagnetic interference.
Electromagnetic induction.
Ready to test your knowledge on tools? What secret does the VDE standard on a screwdriver hold?
It's all about the torque value.
Shh, it's the voltage rating.
It controls the current setting.
It's the weight ratio, obviously.
Ready to test your knowledge on securing metallic conduits? Imagine you're setting up an awesome, high-tech lab and you need to secure metallic conduit to a wall that's always a bit damp. What's the best component to use for this crucial task?
Cleat.
Crampet.
Distance saddle.
Spacer bar saddle.
Imagine you're an electrician superhero! What's the most crucial factor when choosing your trusty wiring system for a skyscraper's riser?
Ease of installation.
Longevity.
External Influences.
Aesthetics.
Ready to dive into the world of electrical wizardry? Your first challenge: When you're about to connect a PVC/SWA cable to a consumer unit, what's the very first step?
Wave goodbye to the steel wire.
Give the brass gland a good ol' tighten.
Gently remove the outer sheath, like peeling a banana.
Strip back the inner sheath, revealing its secrets.
Ready to become a cable securing ninja? What's the secret technique for fastening cables onto a horizontal cable tray?
Ties.
Saddles.
Brackets.
Crampets.
Ready to dive into the world of trunking systems? Let's see if you can crack this: What is the space factor for a trunking system?
60%
55%
50%
45%
Ready to light up your brain? What's the secret mission of intermediate switching?
To flip a switch and control a luminaire like a boss, but just from one spot.
To master the art of luminaire control from not one, not two, but at least 3 different points!
To orchestrate a symphony of luminaires from the comfort of a single command center.
To juggle control of multiple luminaires, but oh no, only up to 2 points allowed.
Guess what? Grommet strips are not just any strips! What magical role do they play?
To support cables inside trunking like a hidden superhero.
To make trunking air tight, sealing it with a secret spell.
To protect the cable insulation like a knight in shining armor.
To provide earth continuity, connecting us to the realm of electric wonders.
Ready to test your knowledge on data transmission systems? Guess which cable is the superstar in this arena!
SY.
SWA.
MIMS.
Cat 5.
Ready to test your tech skills? Which termination technique calls for a ratchet type tool to make things click?
Crimp.
Solder.
Brazed.
Welded.
Ready to dive into the world of electrical engineering? Let's see if you can crack this: What termination method is typically used in a standard socket-outlet?
Brazed.
Crimped.
Screwed.
Soldered.
Ready to test your knowledge on BS 7671? What's a general category of external influences as outlined in the guidelines? Think carefully!
Environment.
Method of supply.
Earthing arrangements.
Method of installation
Imagine you're a wind wizard! Where would you place your magical wind turbine to harness the most power from the breezy spells of nature?
Ready to power up your knowledge? Guess the voltage that keeps heavy industry buzzing!
230 V
400 V
33 kV
400 kV
Ready to power up your knowledge? Let's figure out how the number and type of live conductors for zapping life into a new building is determined!
Having a chat with the local power heroes (distributors).
Knocking on the local council's secret lair (offices).
Diving into the electrifying pages of BS 7671.
Deciphering the codes of ESQCR.
Guess what? Every consumer control unit in a dwelling needs a special home! What should that home be made of?
A plastic enclosure.
A see-through enclosure.
A metallic enclosure.
A compartmentalised enclosure.
Ready to power up your knowledge? Let's dive into the electrifying world of three-phase supply! When a DNO in the UK hooks us up with three-phase power, what's the U0 voltage that lights up our world?
55 V
110 V
230 V
400 V
Ready to flip the switch on your knowledge? What's the real deal behind using a switch in mechanical maintenance?
For electrical isolation purposes.
For overload and fault protection.
To enable normal user operation of the equipment.
To stop the unwanted functioning of the equipment
Why is bonding such an electrifying adventure in the world of electrical systems?
To connect together conduit and trunking, like a secret underground network.
To provide a link between extraneous parts, making them one big happy family.
To provide a path for fault current to flow, like a superhero guiding danger away.
To connect together all exposed conductive parts, in a grand unification ceremony.
Why is it super important for a cpc to be designed just right?
To ensure enough earth fault current zips through for a quick disconnection time. Zap!
To keep overload current in check and avoid those pesky RCD nuisance trips.
To let enough short-circuit current flow for perfect discrimination. It's all about balance!
To handle the equipment's load with the right amount of nominal current. Just like Goldilocks!
🔌 Can you spot the exposed conductive part? It's a bit shocking! ⚡
Centrally heated towel rail.
Plastic casing of a light switch.
Metal casing of a heating pump.
Suspended ceiling T-bars.
Ready to become an electrical detective? Your mission: Uncover the secret formula to determine total earth-fault loop impedance. Can you crack the code?
\( Z_s = Z_e - (R_1 + R_2) \)
\( Z_s = Z_e + (R_1 + R_2) \)
\( Z_e = Z_s + (R_1 + R_2) \)
\( Z_s = Z_e + (R_1 - R_2) \)
🏠✨ How can we ensure basic protection within our cozy dwellings? 🛡️
Insulation of live parts. 🧤
100 mA RCD protection. ⚡
Supplementary bonding. 🔗
Placing out of reach. 🚫👶
Who's the superhero responsible for keeping the lights on by maintaining the meter tails linking the meter to your control unit?
DNO - The Power Protectors
ECA - The Electric Avengers
Installer - The Circuit Saviors
Consumer - The Energy Guardians
Ready to dive into the world of electrical engineering? Let's see if you can figure out the perfect coordination for a water heater's final-circuit. Choose wisely!
Ib = 20 A, In = 25 A, Iz = 18 A
Ib = 18 A, In = 15 A, Iz = 13 A
Ib = 13 A, In = 16 A, Iz = 20 A
Ib = 25 A, In = 16 A, Iz = 13 A
