Which protocol governs communication between a charge point and its back-office management system?

OCPP (Open Charge Point Protocol) is the open standard for communication between charge points and central management systems.

What is the primary purpose of load balancing across multiple charge points?

Load balancing dynamically allocates the available supply capacity between active sessions so the aggregate demand never exceeds the incoming supply rating.

To raise the supply voltage during periods of high demand

To share a limited supply capacity dynamically between active sessions

To guarantee each charge point always runs at its full rated power

To give every active session a fixed equal share regardless of demand

Which feature allows several EVs to charge from a constrained supply without exceeding the incoming capacity?

Dynamic load management continuously monitors total demand and reallocates available current between charge points so the supply capacity is never exceeded.

A fixed time delay on each unit

Free mock exam

Smart Charging — EV Charging Installation Practice

Free topic-focused mock exam: 30 random questions from a pool of 31 on Smart Charging, drawn from the wider EV Charging Installation bank. 35-minute timer, 70% to pass, worked explanation on every question. Use this when you've taken the full mock once and want to drill the topics you got wrong.

Questions: 30
Time limit: 35 min
Pass mark: 70% · 21/30
Question bank: 31

Free, no sign-up. Retake as many times as you like — different questions each time.

Sample questions

01Which protocol governs communication between a charge point and its back-office management system?
- AKNX
- BOCPP
- CBACnet
- DModbus
Why: OCPP (Open Charge Point Protocol) is the open standard for communication between charge points and central management systems.
02What is the primary purpose of load balancing across multiple charge points?
- ATo share a limited supply capacity dynamically between active sessions
- BTo raise the supply voltage during periods of high demand
- CTo guarantee each charge point always runs at its full rated power
- DTo give every active session a fixed equal share regardless of demand
Why: Load balancing dynamically allocates the available supply capacity between active sessions so the aggregate demand never exceeds the incoming supply rating.
03Which feature allows several EVs to charge from a constrained supply without exceeding the incoming capacity?
- AGrid frequency control
- BDynamic load management
- CA fixed time delay on each unit
- DOutput voltage regulation
Why: Dynamic load management continuously monitors total demand and reallocates available current between charge points so the supply capacity is never exceeded.

Common questions

Is the Smart Charging mock exam free?

Yes — 100% free, no sign-up needed. Questions are pulled at random from a substantial bank, with a worked explanation on every question after you submit.

Can I retake the mock exam?

Yes. Every attempt picks a different random selection and reshuffles the options, so each retake gives you genuinely new questions. No limit on retakes.

Does this count towards the real qualification?

No — this is independent practice material. To gain the actual qualification you need to sit the official assessment through an approved provider.