Electrical Safety Rules (Mintra) pass for free. ID 447

Which of the following statements apply to working on extra low voltage equipment?

Extra low voltage equipment must always be proved dead before work can commence.

Personal isolations are never allowed on extra low voltage equipment.

A risk assessment must always be carried out when working on live control and telecommunications plant and equipment.

In electrical terminology, what is the correct definition of extra low voltage?

A voltage which does not exceed 150 Volts AC between conductors or between any conductor and earth.

A voltage which does not exceed 50 Volts AC between conductors or between any conductor and earth.

The disconnection and separation of electrical equipment from every source of electrical energy.

A voltage that is not greater than 1 000 Volts.

The Electrical Safety Rules are designed to work in conjunction with a ship’s Risk Assessment Process and Permit to Work System.

True.

False.

Which of the following is the correct definition of a Hazardous Area?

An area in which explosive gas or air mixture are not present.

An area where all stored electrical energy has been discharged.

An area where all pieces of electrical equipment has been disconnected and separated from all sources of electrical energy.

An area in which explosive gas or air mixtures are present or may be expected to be present in quantities which require special precautions for the construction and use of electrical apparatus.

Which of the following statements are true in relation to the safe use of electrical equipment?

All equipment should be suitable for purpose.

All equipment should be properly maintained.

All equipment should be extra low voltage.

All equipment should have a permit attached to it.

All equipment should be used in line with the manufacturer’s guidelines.

All equipment should only be used by the Master.

Antwort

Which of the following is used as guidance for electrical safety onboard seagoing vessels?

SOLAS Chapter II-1 Construction – Structure, subdivision and stability, machinery and electrical installations, Part D Electrical Installations.

SOLAS Chapter II-2 Construction – Fire protection, fire detection and fire extinction, Part A General.

SOLAS Chapter II-3 Life Saving Appliances and Arrangements, Part C General Alternative Arrangements.

The Master is responsible for ensuring the seaworthiness, navigation, cargo and maintenance of their vessel, in accordance with all mandatory regulations.

True.

False.

Which of the following members of personnel is responsible for the safe and efficient operation and maintenance all electrical plant and equipment onboard?

Master.

Captain.

Electro-Technical Officer.

Chief Engineer.

Which of the following are typical duties of the Electro-Technical Officer?

Overseeing all electrical work planning.

Compiling the Electrical Safety Rules for an organisation.

Ensuring that all records, manuals and technical drawings are updated and maintained in a correct and useable form.

Carrying out regular inspections of all electrical power management systems to ensure that they conform with standards of operation and maintenance.

Antwort

Which of the following are the main roles that are directly involved in Electrical Safety?

Electro-Technical Officer.

Maintenance Technician.

Chief Engineer.

Master.

Staff Technician.

Antwort

Which of the following statements concerning the Chief Engineer are true?

The Chief Engineer reports to the Master.

The Chief Engineer is responsible for the technical management of the vessel.

Any person onboard can be classed as the Chief Engineer.

Antwort

Which of the following are specialised items of electrical safety equipment?

BA sets.

Insulated mats.

Double lanyards.

Insulated shepherd’s crooks.

Antwort

It is extremely important for all personnel to wear the correct Personal Protective Equipment as it could provide protection from serious injury.

False.

True.

Which of the following statements are true in relation to the safe use of electrical equipment?

Electrical personnel must work within the Permit to Work System.

The requirements for PPE and adherence to the risk assessment process and Permit to Work System and ONLY to personnel working with electricity.

Electrical personnel must wear appropriate PPE.

There are specific precautions that must be taken for electrical work.

Antwort

Which of the following is required before testing can be completed on high voltage electrical equipment?

Authorisation by a Technical Authority.

A Sanction for Test document.

Plant shutdown.

Which of the following precautions must be taken when working on low voltage systems?

All equipment must be proved dead by testing.

Barriers must be erected to stop unauthorised persons entering the area.

A face mask should be worn.

Danger notices must be attached to equipment or systems.

All equipment must be switched on.

Antwort

Which of the following statements apply to electrical isolation?

All electrical equipment must be regarded as live until proven dead.

An electrical isolation must be secured with a suitable locking device.

Electrical testing and proving dead can be carried out by one person.

Gas tests are never required when proving dead electrical equipment.

Antwort

What is the purpose of a lock out system?

To ensure that personnel cannot enter a switch room.

To ensure that it is not possible to de-isolate electrical equipment or systems with the proper authority and the correct procedure being followed.

To ensure that no unauthorised personnel can pass through an area where electrical work is taking place.

How is low voltage electrical equipment earthed?

By applying portable earthing leads.

By circuit testing.

By isolation.

The term “high voltage” equates to which of the following?

A voltage greater than 1 000 Volts AC or 1 500 Volts DC between conductors.

A voltage not exceeding 1 000 Volts.

A voltage greater than 600 Volts AC or 900 Volts DC between conductors and earth.

A voltage between 400 and 500 Volts AC.

Antwort

What is the meant by Electrical Isolation?

Ensuring that personnel wear insulated PPE in order to mitigate the consequences of coming into contact with live electricity.

Maintaining a system of locking and tagging of electrical sources.

Ensuring a piece of electrical equipment is certified as dead.

The disconnection and separation of electrical equipment from every source of electrical energy in such a way that this disconnection and separation is secure.

All electrical equipment should undergo regular inspection and maintenance, and gas testing must always be carried out before and during any electrical work taking place in a hazardous area.

True.

False.

Which of the following hazards are related to battery bank systems?

Vibration.

Production of explosive gases during changing.

Corrosive materials.

High noise.

Antwort

Static electricity is a particular hazard with which of the following types of equipment?

Telecommunications equipment.

Grit blasting equipment.

Rotating equipment.

Lighting.

Antwort

What is PAT testing?

Testing high voltage equipment.

Testing portable equipment.

Testing to ensure that portable equipment is dead before work on it can commence.

Which are the most common hazards associated with electrical work?

Electrical fires.

Suspension trauma.

Electrocution.

Shock.

Asphyxiation.

Risk of fire or explosion from ignition of flammable gas, liquid or vapour.

Hydrogen sulphide.

Antwort

Which of the following precautions must be taken when working on telecommunications equipment?

Magnetic tools should always be used when testing or fault finding in the proximity of high magnetic fields.

Non-magnetic tools should always be used when testing or fault finding in the proximity of high magnetic tools.

Any work carried out on antenna or aerial tuning units should be isolated to the same standard as electrical equipment so that they cannot be energised.

Any work carried out on antenna or aerial tuning units should be de-isolated to the same standard as electrical equipment so that they can be energised.

Antwort

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