Free Practice Questions for the Huawei HCSP Presales H20-688_V1.0 Exam (2026 Updated)

Exact Extract — Technical and Safety Disclosure (PDF page 260, training slide 15)

Technical and safety disclosure is a key measure to prevent accidents. Effective technical and safety disclosure ensures that construction personnel are familiar with device installation requirements, operation processes, and safety regulations. This reduces accidents, improves work efficiency, and ensures device installation quality and delivery reliability.

Additional Extract — Adaptation to SQA Operation Standard Process (PDF page 252, training slide 7): Participate in technical and safety disclosure, and supervise the supervision engineer to complete technical and safety disclosure to construction personnel, project team leader, customer/EPC and other related personnel before construction entry.

Technical Deep Dive:

Technical and safety disclosure is a mandatory preparation activity within Huawei ' s project delivery quality assurance framework.

Its purpose is to establish a common understanding of technical procedures, construction standards, operational risks, and safety responsibilities before construction begins.

Option A is correct. Customer and EPC representatives require relevant information about construction arrangements, safety conditions, interfaces, and project responsibilities.

Option B is correct. Construction personnel must understand site-specific hazards, approved construction methods, protective measures, and installation limitations.

Option C is correct. Installation engineers require detailed technical information about equipment installation procedures, electrical connections, operational precautions, and acceptance requirements.

Option D is correct. The PD, or Project Director, must understand the relevant technical and safety requirements because the role coordinates project activities and has overall project quality responsibilities.

The disclosure should cover personnel qualifications, technical requirements, safety precautions, identified risks, and corresponding preventive measures.

Huawei ' s process also requires a Technical and Safety Disclosure Report. Appropriate participants must sign the report after the disclosure to establish traceable confirmation.

The SQA supervises the process and checks that the required stakeholders have received and acknowledged the information.

Question wording note: The training uses both construction personnel and installation personnel, which may overlap in practice. All four options are supported by the broader disclosure process. The timing requirement is before construction entry, not necessarily before every participant physically arrives at the project location.

Final verification: A, B, C, and D.

Exact Extract — Precautions for Battery Recycling (PDF page 200, training slide 59)

Dispose of waste batteries in accordance with local laws and regulations. Do not dispose of batteries as household waste. Improper disposal of batteries may result in environmental pollution or an explosion.

If a battery leaks or is damaged, contact technical support or a battery recycling company for disposal.

Technical Deep Dive:

Waste energy-storage batteries require controlled collection, transportation, recycling, and disposal because they contain potentially hazardous materials and may retain significant electrical energy after removal from service.

Lithium-ion batteries commonly used in Huawei Digital Power energy-storage solutions contain electrochemical cells, electrolyte, metallic conductors, and other components that require appropriate end-of-life management.

Improper disposal creates several major risks.

Electrical and fire hazards: Discarded batteries can retain sufficient energy to initiate short circuits if terminals contact conductive materials. Mechanical damage, crushing, or exposure to excessive temperatures can initiate thermal runaway, potentially resulting in fire or explosion.

Environmental hazards: Damaged battery cells may release electrolyte or other substances that can contaminate the surrounding environment. Recycling through authorized facilities enables appropriate handling and recovery of valuable materials.

Transportation risks: Damaged, defective, or end-of-life lithium batteries may be subject to dangerous-goods transport requirements. Their classification, packaging, marking, documentation, and transport conditions must follow applicable local and international regulations.

For SQA personnel, compliance includes verifying that waste batteries are segregated, appropriately stored, and transferred to authorized recycling or waste-management organizations.

Damaged or leaking batteries require additional precautions, including preventing further mechanical damage and monitoring for abnormal heating, smoke, or electrolyte leakage.

Disposal through ordinary municipal household-waste channels is therefore prohibited.

Final verification: The statement is false.

Exact Extract — Entry Management: Equipment and Materials Acceptance (PDF page 267, training slide 22)

The package is not intact. Communicate with the EPC/customer and owner about whether to further check and receive goods.

Damaged equipment: Remind the supervision engineer and project team to communicate with the supply department and fill in the Cargo Replacement Application Form.

Technical Deep Dive:

Huawei ' s entry-management process distinguishes between damage to the outer packaging and confirmed damage to the equipment itself. These conditions require different responses.

Option D is correct because the question specifically states that the outer package is damaged.

When packaging damage is identified during goods receipt, the responsible personnel must coordinate with the EPC, customer, and owner to determine whether further inspection and acceptance are appropriate.

The condition of the packaging must be documented, and the equipment must be evaluated before installation or commissioning is authorized.

Option A is incorrect. The SQA and supervision engineer cannot independently authorize receipt solely on the basis of their own assessment when the prescribed process requires consultation with the relevant project stakeholders.

Option B is incorrect for the stated condition. The Cargo Replacement Application Form is associated with confirmed equipment damage. Damaged packaging alone does not automatically establish that replacement is necessary.

Option C is incorrect as the direct response. Evaluation of whether equipment can be installed or must be returned for repair or replacement applies when the equipment has been damaged during transportation or handling.

If inspection confirms equipment damage, the corresponding escalation and replacement procedure must be followed. Damaged equipment must not be installed or connected to the network without appropriate authorization and technical confirmation.

Important answer-key correction: B is not the appropriate answer for damaged outer packaging alone. The Huawei process explicitly maps package not intact to communication with the EPC/customer and owner.

Final verification: D.

Exact Extract — High-Quality Delivery: Build E2E High-Quality and Consistent Service Quality Standards Based on Platforms and Tools (PDF page 215, training slide 11)

Three Enablement tools

One Scenario-based Guide

One smart wizard tool

One smart assistant

The diagram identifies the Huawei Data Center Facility Delivery and Service White Paper, an easy-installation tool, and an intelligent chatbot as examples of the three enablement approaches.

Technical Deep Dive:

Huawei ' s high-quality delivery framework uses standardized knowledge, digital guidance, and intelligent assistance to improve service consistency.

Option D is correct because all three enablement approaches support the delivery process.

Option A — Scene-based: The scenario-based guide provides service personnel with structured instructions corresponding to specific installation, configuration, commissioning, and maintenance scenarios.

This approach improves consistency by reducing dependence on individual experience.

Option B — Smart wizard tool: Wizard-based tools guide engineers through defined procedures, helping ensure that required steps, checks, and records are completed in the correct sequence.

Such tools can reduce procedural omissions and support standardized service execution.

Option C — Smart assistant: An intelligent assistant provides access to technical knowledge, procedural guidance, and relevant support information.

This can improve troubleshooting efficiency and help service personnel locate appropriate instructions.

The three capabilities complement one another. Scenario-based guidance defines the expected process, wizard-based tools support implementation, and intelligent assistance improves knowledge accessibility.

Huawei ' s Power-Partner platform further supports digitalized partner operations, standardized workflows, and quality management.

For SQA professionals, these tools improve process traceability, inspection consistency, and quality assurance efficiency.

Final verification: D.

Wording correction: Option A is retained as Scene-based from the question bank. The training diagram uses the fuller expression Scenario-based Guide.

Exact Extract — ISO 9000 Definition of Quality (PDF page 113, training slide 6)

ISO 9000 defines quality as the " degree to which a set of inherent characteristics fulfills requirements " .

– Inherent characteristics (such as appearance, shape, performance, maintainability and reliability), which is opposite to assigned characteristics (such as price, name and code).

– Quality is conformance to requirements.

– Requirements include demands and expectations of customers and other related parties.

Technical Deep Dive:

Quality is a multidimensional concept encompassing the characteristics that determine whether a product or service satisfies specified requirements and stakeholder expectations.

For Huawei Digital Power products, quality extends beyond basic functional performance to include operational safety, dependable service, and effective maintenance throughout the product lifecycle.

Option A — Safety: Safety is a fundamental quality characteristic because equipment must operate without exposing personnel, property, or the environment to unacceptable risks. Examples include electrical insulation, overtemperature protection, protective grounding, and battery safety controls.

Option B — Reliability: Reliability describes the ability of equipment to perform its required functions under specified conditions for a defined period. It is particularly important for UPS systems, energy-storage installations, and power conversion equipment.

Reliability may be evaluated through failure rates, availability, mean time between failures (MTBF), and other performance indicators.

Option C — Serviceability: Serviceability addresses how effectively equipment can be inspected, diagnosed, repaired, and restored to operational condition. It includes fault visibility, maintenance accessibility, service procedures, replacement efficiency, and technical support capabilities.

Effective serviceability reduces service restoration time and total lifecycle maintenance costs.

These characteristics are interconnected. Equipment that is reliable but difficult to maintain may still impose considerable operational risk. Similarly, products must provide required performance without compromising safety.

Final verification: D is correct because safety, reliability, and serviceability are all recognized product quality attributes.

Exact Extract — Definition and Classification of Dangerous Goods (PDF page 46, training slide 6)

Class 9 Miscellaneous dangerous substances and articles.

The classification diagram identifies lithium battery products and energy-storage systems under the Class 9 category and illustrates the corresponding dangerous-goods labels.

Technical Deep Dive:

Lithium batteries are classified as Class 9 miscellaneous dangerous goods under the United Nations dangerous-goods classification framework.

Option C is correct. Class 9 encompasses hazardous substances and articles that present risks during transportation but are not more appropriately classified under Classes 1–8.

Lithium batteries can present fire, electrical, and thermal hazards, particularly when damaged, improperly packaged, short-circuited, or exposed to excessive temperatures.

Relevant transport classifications include UN 3480 for lithium-ion batteries shipped separately and UN 3481 for lithium-ion batteries packed with or contained in equipment.

Other classifications may apply depending on the battery chemistry, product configuration, and transport arrangement.

Option A is incorrect. Class 2 primarily concerns gases.

Option B is incorrect. Class 1 covers explosives; lithium batteries are not classified as Class 1 merely because they can experience violent thermal failures.

Option D is incorrect. Class 3 covers flammable liquids rather than lithium batteries as complete transport articles.

Class 9 classification has practical implications for packaging, labeling, documentation, carrier qualifications, storage, and transportation requirements.

Certain smaller lithium batteries may qualify for specific regulatory exemptions or reduced requirements, but this does not change the underlying Class 9 hazard classification.

Final verification: C.

Exact Extract — Acceptance Upon Completion (PDF page 229, training slide 25)

The customer confirms the completion of the project and signs the completion acceptance report in written form.

In principle, the signing of the service completion report is the node for internal and external ETM completion.

Technical Deep Dive:

Formal project acceptance is an essential control activity in Huawei Digital Power service delivery.

Option B is correct because an oral notification cannot replace the required written completion-acceptance confirmation.

The completion-acceptance report provides objective evidence that the customer has reviewed and acknowledged the relevant project deliverables.

Depending on the project, these deliverables may include equipment installation records, commissioning results, quality inspection reports, defect rectification records, and relevant equipment handover documentation.

A properly executed acceptance process establishes the status of the delivered services and helps identify any outstanding contractual or technical obligations.

Written confirmation also improves traceability and reduces the risk of disputes concerning the completion date, acceptance criteria, outstanding defects, or the agreed scope.

The training material specifically requires the customer to confirm project completion and sign the acceptance report in writing.

Where an approved digital acceptance system is available, the applicable electronic authorization and record-retention procedures may also be used.

However, verbal communication alone does not satisfy the prescribed formal acceptance requirement.

Final verification: B.

Exact Extract — A Fire Accident in an Energy Storage Plant: Water Is Considered a Preferred Agent for Suppressing Lithium-Ion Batteries (PDF page 274, training slide 29)

Water is considered to be a preferred agent for suppressing lithium-ion batteries; Water has strong cooling capacity, easy to obtain, easy to transport to the fire site. Water fire fighting is widely used in putting out fire in scenarios of energy storage and electric vehicles.

Technical Deep Dive:

Water is identified as a preferred extinguishing agent for lithium-ion battery fires primarily because it can remove substantial amounts of thermal energy and can often be supplied in sufficient quantities.

Option B is correct. Water is generally accessible through firefighting water supplies, hydrants, emergency response vehicles, and other approved firefighting infrastructure.

Option C is correct. Water has excellent heat-absorption characteristics. Its relatively high specific heat capacity and latent heat of vaporization enable effective cooling of hot battery modules and surrounding structures.

Cooling is critical because lithium-ion battery thermal runaway can continue generating heat even after visible external flames have been suppressed.

Option D is correct. Firefighting water can be transported to affected installations using emergency response vehicles, hoses, pumps, and other suitable equipment.

Option A is not independently established as a separate characteristic. The term usability is broad and could refer to ease of application or operational convenience. However, the training passage specifically identifies cooling capacity, accessibility, and transportation.

It does not list general usability as an independent selection criterion.

In practice, battery firefighting must be conducted by appropriately trained emergency responders following the installation ' s approved emergency procedures. Personnel must consider electrical hazards, potential toxic gases, water runoff, and the risk of thermal runaway propagation.

Answer-key qualification: B, C, and D are directly supported. Option A is semantically ambiguous, so an answer key including A would require an additional definition of usability rather than an assumption.

Exact Extract — Safety Operation Requirements 4/7: Preventing Falling from Heights (PDF page 187, training slide 46)

Do not work at heights when scaffold steel pipes are wet or other risky situations exist.

Technical Deep Dive:

Working at heights presents significant fall hazards and requires strict control of environmental conditions, personnel qualifications, access equipment, and fall-protection systems.

Option A is correct because wet scaffold components can increase slipping risks and make climbing or movement less secure.

Moisture on scaffold pipes, platforms, ladders, and associated structures may reduce traction and increase the likelihood of losing balance.

Other hazardous conditions may include strong winds, thunderstorms, inadequate visibility, unstable scaffolding, damaged access equipment, or missing fall-protection systems.

Huawei requires personnel involved in working at heights to possess the appropriate qualifications and use the necessary protective measures.

These may include safety helmets, approved safety harnesses, suitable anchorage arrangements, and protective footwear.

Warning signs and barriers must be installed where necessary to prevent unauthorized entry beneath elevated working areas.

Personnel must also avoid throwing objects from heights or allowing individuals to stand beneath locations where tools or materials could fall.

Before work begins, the responsible supervisor should verify that weather conditions, access structures, protective equipment, and work procedures are suitable.

If hazardous conditions develop during the operation, the work must be suspended until appropriate controls have been restored.

Final verification: A.

Exact Extract — Safety Operation Requirements 1/7: Electric Shock Protection (PDF page 184, training slide 43)

Do not work with power on during installation. Do not install or remove a cable with power on. Transient contact between the core of the cable and a conductor will generate electric arcs or sparks, which may cause a fire or personal injury.

Technical Deep Dive:

Inverters with multiple electrical inputs may receive energy from several independent sources. Isolating only the specific circuit being serviced does not necessarily eliminate all hazardous voltages within the equipment.

Huawei inverters may have multiple photovoltaic DC inputs, DC switches, grid-connected AC circuits, energy-storage interfaces, or other product-specific electrical connections.

The fundamental safety principle is complete isolation of all relevant energy sources before maintenance, following the shutdown sequence specified for the particular model.

A safe isolation procedure generally requires identifying the connected sources, executing the approved shutdown procedure, isolating the applicable AC and DC circuits, preventing unintended reconnection, observing the manufacturer ' s capacitor-discharge waiting period, and verifying the absence of hazardous voltage using suitable test equipment.

The exact order of isolation is product-dependent. It must not be improvised.

Residual electrical energy may remain in internal capacitors after external switches are opened. Consequently, an inverter can present an electric shock hazard even after it appears to have been shut down.

Huawei ' s SUN2000 maintenance instructions provide a practical example: the maintenance procedure includes disconnecting the AC supply, isolating all relevant DC inputs, checking electrical conditions, and observing the specified waiting period.

The statement is false because switching off a single input or output does not guarantee that the inverter is safely de-energized.

Final verification: B is supported by the electrical isolation principles and Huawei ' s product maintenance requirements.

Exact Extract — Safety Accident Cases 3/4: Energy Storage Plant Accident (PDF page 147, training slide 6)

The leakage in the cooling system caused a battery short circuit. As a result, electronic components were on fire, causing thermal runaway. The fire occurred in the adjacent battery compartment of a container and then spread to the next container, eventually to the entire ESS.

Before the project kick-off, an emergency plan had been made and emergency drills had been conducted. Therefore, after the fire broke out, all personnel quickly evacuated, and no casualties were caused onsite.

Technical Deep Dive:

The described accident demonstrates how failures in battery thermal-management infrastructure can initiate severe cascading events within an energy-storage system.

A cooling-system leak can introduce conductive liquid or moisture into areas containing electrical connections and battery components. Under hazardous conditions, insulation failure and short circuits can create electrical arcing, localized overheating, and ignition.

When battery cells experience uncontrolled temperature rise, thermal runaway may occur. The resulting heat and gas generation can propagate to adjacent modules, battery compartments, or storage containers.

The incident also illustrates the importance of emergency preparedness.

The project had established an emergency plan and conducted drills before construction and commissioning activities. As a result, personnel understood the emergency response requirements and evacuated promptly when the accident occurred.

The supplier ' s experts coordinated with the fire department and recommended measures to reduce the possibility of fire propagation.

Rather than opening the affected battery containers, emergency responders concentrated on cooling surrounding areas and preventing the incident from spreading.

Although the fire damaged two battery containers and caused substantial financial losses, the case records no onsite casualties and no obvious pollution of local air and water resources.

The distinction is important: the statement does not mean that the accident was minor or that the energy-storage equipment escaped serious damage. It means that the emergency response limited the surrounding consequences.

Final verification: A.

Exact Extract — What Is Quality? (PDF page 111, training slide 4)

The definition of quality is conformance to requirements (not as goodness). —Philip B. Crosby

Additional Extract — ISO 9000 Definition of Quality (PDF page 113, training slide 6): ISO 9000 defines quality as the " degree to which a set of inherent characteristics fulfills requirements " .

Technical Deep Dive:

Quality management requires objective criteria for determining whether products, services, and operational processes satisfy established requirements.

Philip B. Crosby ' s definition emphasizes conformance to requirements rather than subjective judgments about whether something appears good, excellent, or impressive.

The ISO 9000 definition provides a broader framework by evaluating how inherent characteristics fulfill specified requirements.

For Huawei Digital Power products, these requirements may include electrical performance, safety protection, installation quality, environmental suitability, reliability, and serviceability.

Requirements may originate from several sources, including customer contracts, manufacturer specifications, applicable legislation, technical standards, and established industry practices.

For example, a UPS installation may appear professionally completed, but it cannot be considered conforming if protective grounding, cable termination, or electrical testing requirements have not been satisfied.

Likewise, an energy-storage system must satisfy applicable installation, operational, and safety requirements—not merely demonstrate successful power-on.

Quality assurance therefore depends on documented specifications, measurable acceptance criteria, process compliance, inspections, and verification.

This definition enables SQA personnel to evaluate delivery outcomes consistently and identify nonconformities using objective evidence.

Final verification: A. The statement is consistent with both Crosby ' s definition and Huawei ' s presentation of ISO 9000 quality principles.

Exact Extract — Four Safety Management Phases (PDF page 155, training slide 14)

Proactively correct others ' violations, and show care for others ' safety, team honor, and safety beyond work.

Technical Deep Dive:

Team management represents the most mature phase in Huawei ' s four-stage safety-management model.

At this stage, employees demonstrate collective ownership of safety performance rather than depending exclusively on management supervision or focusing only on personal compliance.

Option C is correct because the statement describes the distinctive characteristics of team-oriented safety management.

Employees proactively identify unsafe behavior, intervene when colleagues violate safety requirements, and support one another in maintaining safe working conditions.

For example, when a technician begins electrical maintenance without the required protective equipment, another team member should intervene and ensure that the appropriate safety precautions are implemented before work continues.

Similarly, construction personnel should report unsafe lifting practices, incorrect electrical isolation, inadequate site barriers, and other hazards even when those activities fall outside their immediate responsibilities.

Team management extends beyond compliance monitoring. It establishes a workplace culture in which employees collectively prevent accidents and continuously improve safety practices.

The distinction from self-management is particularly important. Self-management focuses on individual safety awareness and disciplined personal behavior, whereas team management involves active concern for coworkers and collective safety outcomes.

Supervision and management, by contrast, relies more heavily on formal inspection, monitoring, and enforcement.

Final verification: C corresponds directly to the team management phase.

Exact Extract — Huawei Digital Power Corporate Quality Guideline (PDF page 116, training slide 9)

Doing the right thing means that we are adopting a right strategy. The quality will be certainly unsatisfactory on the basis a wrong strategy. We first need to make sure we are doing things in the right way.

In our work, we must strive to do things right at the first time, and efficiently deliver products of high quality.

We should understand and comply with processes, strictly follow processes, and ensure the certainty on results through the certainty on processes.

We need to continuously improve capabilities, be open to learning, and consolidate the iron triangle featuring the mutual reinforcement of organizations, capabilities, and processes, building a process- and capability-based organization.

Technical Deep Dive:

Huawei ' s principle of doing the right thing at the first time emphasizes making correct strategic decisions, following established processes, and preventing errors during initial execution.

Option A is the expected incorrect statement because it addresses the improvement of repair-return processes and defective-product handling rather than the specific elements listed under this quality guideline.

Repair quality and defective-product management are legitimate quality-management activities. However, the statement does not correspond to the defined components of doing the right thing at the first time.

Option B is correct. Continuous capability development and the mutually reinforcing relationship between organizations, capabilities, and processes form part of the guideline.

Option C is correct. Huawei emphasizes strict process compliance as a mechanism for achieving consistent and predictable quality outcomes.

Option D reproduces the guideline ' s stated strategy requirement. Selecting the correct strategy is essential because efficient execution cannot compensate for fundamentally incorrect strategic decisions.

The underlying quality-management principle is prevention rather than dependence on subsequent correction.

For SQA professionals, this means establishing effective controls before installation, ensuring personnel understand requirements, and preventing nonconformities from entering subsequent delivery stages.

Question interpretation: Option A is not inherently bad quality practice. It is incorrect specifically because it is not part of the quoted guideline ' s defined explanation.

Final verification: A.

Exact Extract — Employees ' Responsibilities and Obligations in EHS (PDF page 37, training slide 36)

Employees shall receive safety training, master safety knowledge required for work, improve safety skills, and enhance accident prevention and emergency handling capabilities.

Technical Deep Dive:

Safety training is a fundamental prerequisite for personnel entering construction and operational work environments.

Option B is correct because new personnel must understand the applicable safety requirements, site hazards, emergency procedures, and protective measures before beginning work.

Safety orientation should address relevant site access requirements, emergency evacuation routes, accident reporting procedures, restricted areas, PPE requirements, and common construction hazards.

Huawei Digital Power projects may involve electrical work, equipment lifting, battery installation, working at heights, and other activities presenting significant occupational risks.

New personnel must therefore understand how to identify hazardous conditions and respond appropriately.

Option A, operation skill training, is also important for individuals assigned technical tasks. However, it does not replace the general safety training required before worksite entry.

Option C, a project overview, supports understanding of project objectives and responsibilities but does not independently establish safety competence.

Option D, device technical training, may be necessary for installation, commissioning, or maintenance responsibilities. However, such training is task-specific.

Personnel assigned specialized operations must additionally satisfy the applicable qualification, certification, and competency requirements.

The key distinction is between general site safety orientation and authorization to perform particular technical operations.

Final verification: B.