Which statement describes evaporation?

The change of state of a substance.

The transfer of heat from one object to another.

The circulation of air currents.

What best describes the force that keeps the water flowing when siphonic action takes place?

Force applied to the mechanism.

Which statement best describes the term Mechanical Advantage?

The use of less effort to lift or move an object.

The speed in which an object can be moved.

People performing manual tasks without the use of equipment.

During a development, as the work progresses, what information would the client regularly expect to receive?

Any delays to agreed time completion dates.

Updated costings of materials from the merchants.

Changes to the works profit margins.

When producing a sequence of works and timeline for work you are to undertake on a large development, what would you need to consider in addition to your own needs?

The timeline of delivery of materials for other trades.

The schedule of break times across the site.

The availability of food and drink on and off site.

The schedule other trades on the job are working to.

When completing a risk assessment for a task to be undertaken, what factors would you consider?

Hazards and who might be at harm.

Efficiencies and ways for the task to be completed quickly.

Payment schedules and the impact on staff morale.

Previous accidents that staff have been involved in on other tasks.

What advantage would a mains fed direct hot and cold water system have over an indirect system?

Equal high pressure at all outlets.

Quieter pipes when the water is running.

Hot water at a higher temperature.

Water flow at a lower velocity rate.

In what situation would trace heating be installed to pipework?

To prevent freezing in cold conditions.

To increase the temperature of the fluid inside the pipe.

To reduce the pressure in the pipework.

To maintain a constant temperature in the pipe.

When filling a newly installed cold water system for the first time what class of water must be used?

Class 1 directly from the main supply.

Class 2 directly from the main supply.

Class 3 directly from the main supply.

Class 4 directly from the main supply

What routine procedure would be undertaken during the periodic inspection of a cold water system on a planned maintenance programme?

Remove and clean the line strainer to the inline filter.

Check drainage chambers for blockages.

Check waste traps for blockages.

What advantage does a combination boiler hot water system have over a traditional open vented system?

Less wastage due to water being only heated when needed.

Access to stored hot water in a power failure.

A secondary heat source should the hot water system fail.

When filling a newly installed system, what checks would you undertake before filling with water?

Undertake a visual inspection of all pipework and check all joints are tight.

Turn the water on and then look for leaks.

Ensure the expansion vessel is charged to the correct pressure.

Test the system with all taps in the open position.

What purpose does the open vent on the primary circuit of a heating system serve?

Relieves excess pressure in the system if it overheats.

Keeps the water in the expansion tank warm.

Provides a filling point for the system.

Decreases the flow rate of water in the system.

When filling and releasing air from a central heating system, where would you start to remove air?

At the highest point in the system.

At the lowest available bleed point.

By opening all taps on the hot water system.

When undertaking routine maintenance checks on a central heating system, why is it important to check all radiators are getting hot on the system?

To check for cold spots identifying sludge problems.

To check that the system has water in it.

To check whether there is inhibitor in the system.

What advantage does a separate rainwater system have over a combined rainwater system?

It diverts rainwater to a soakaway, minimising waste to treatment plants.

It drains away the water quicker.

It is less likely to become blocked by leaves.

It has less pipework to be installed.

What is the correct method for performance testing a newly install gutter system?

Lay a hose pipe in the gutter and turn on.

Pour a bucket of water into the gutter.

Pour water over the roof area evenly.

Place a ball in the gutter to see if the fall is correct.

How would a leak on a gutter joint be repaired whilst still allowing the thermal movement of the joint?

Replacing the entire length of gutter.

What is one advantage of a ventilated branch discharge system over a primary ventilated stack system?

Traps are not needed at every appliance.

The risk of trap seal loss is eliminated.

The system is less likely to suffer from blockages.

The appliances need to be closer to the discharge stack.

What forms part of the routine checks on a sanitary system during a maintenance schedule?

Checking the operation of all taps and valves.

Re-washering float operated valves.

Adjusting the water pressure at the water meter.

Removing and cleaning of water traps.

When advising a client on the choice of fuel for a system installation, what would be the key deciding factor?

The efficiency and availability of fuel to the location.

How many people live in the house.

What consideration has to be made before installing of a biomass boiler?

There is enough dry internal space for the fuel to be stored.

How many occupants the dwelling has.

There is access to plenty of coal.

The dwelling must have a high water pressure supply.

Identify the three constituents that are required for complete combustion to take place within an appliance.

Fuel, carbon dioxide, ignition source.

Carbon monoxide, heat, ignition source.

When servicing a gas appliance there are dark soot marks evident. What would this tell you about the operation of the appliance?

That incomplete combustion is taking place.

That the appliance is getting too hot.

That the appliance is not getting hot enough.

There is a leak on the gas supply.

Identify the flue system in the image.

Room-sealed vertical flue system.

Natural draught room-sealed flue system.

From where would a room-sealed balanced flue appliance take its air to operate safely?

From the emissions of the burner.

From inside the room via the appliance casing.

From the emissions of the boiler.

What advantage does alternating current have over direct current in electrical installations?

AC current can be transmitted over long distances without voltage drop.

AC current is less likely to cause a serious shock.

AC current uses fewer cables in a property.

AC current is portable in batteries.

Why is it essential that a lock is used to isolate a mains switch when working on an appliance with an electrical supply?

To prevent anyone turning the supply back on accidentally.

To ensure earth continuity is maintained.

To make sure the power stays on.

To ensure the fuse does not trip.

Where would information be found about the safe process of changing components on a faulty gas appliance?

Manufacturer user instructions.

Builders merchant’s catalogue.

Manufacturer's technical specification.

EPA Knowledge Assessment – Sample Questions 2

Construction

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MULTIPLE CHOICE QUESTION

1 min • 1 pt

At what point would an employer be required to produce a written Health and Safety policy to be compliant with the Health and Safety at Work Act?

When trading as a sole trader.

When an accident has occurred on site.

When employing five or more people.

When becoming a Limited Company.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

How would you minimise the likelihood of an accident occurring during a construction project?

Read the job specification provided before starting the works.

Refer to the risk assessment before starting the works.

Ask a colleague for advice on how to undertake the work safely.

Refer to the Health and Safety at Work Act before starting the works.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What actions should you take if you discover a fire on a building site?

Lock all emergency doors and secure the building.

Raise the alarm and vacate to the designated muster point.

Tackle the fire yourself.

Collect all your belongings and leave the building.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

For what reason must LPG Cylinders be stored in a cage, open to the outside air?

To keep them cold.

To enable any escaping gas to disperse into the air.

To enable easy access for anyone to change the bottles.

To allow the bottles to naturally weather.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What access equipment would you select to repair a leaking gutter joint on a house?

Tall step ladder.

Extension ladder.

Mobile tower scaffold.

Trestles and planks

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The proprietary support system would enable a worker to operate safely when working where?

In a loft space.

Under a wooden floor.

In an excavation.

On a floor.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

What check would you undertake on a 110-volt power tool before commencing work with it?

It carries a current PAT test sticker that is within date.

It is yellow in colour.

It is made from conductive materials.

It has a fully charged battery.

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EPA Knowledge Assessment – Sample Questions 2

At what point would an employer be required to produce a written Health and Safety policy to be compliant with the Health and Safety at Work Act?

How would you minimise the likelihood of an accident occurring during a construction project?

What actions should you take if you discover a fire on a building site?

For what reason must LPG Cylinders be stored in a cage, open to the outside air?

What access equipment would you select to repair a leaking gutter joint on a house?

The proprietary support system would enable a worker to operate safely when working where?

What check would you undertake on a 110-volt power tool before commencing work with it?

What pipework material would the fitting in the image be used to connect to?

What is the name of the pipe clip in the image?

The SI unit Kelvin is used to measure what value?

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