WorksheetsEPA Sample Quiz 2
Total questions: 50
Worksheet time: 49mins
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.
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.
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.
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.
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.
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.
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.
What pipework material would the fitting in the image be used to connect to?
UPVC.
Low carbon steel.
ABS.
Lead.
What is the name of the pipe clip in the image?
A stand-off clip.
A saddle clip.
A nail clip.
A Munsen ring.
The SI unit Kelvin is used to measure what value?
Temperature.
Time.
Distance.
Angles.
Which element is the most cathodic in the electromotive series?
Copper.
Magnesium.
Lead.
Chromium.
Which statement describes evaporation?
The transfer of heat from one object to another.
The change of state of a substance.
The circulation of air currents.
Water changing into ice.
Identify the correct formula to calculate the power of an appliance.
Current x Voltage = Power
Resistance x Current = Power
Voltage + Resistance = Power
Amps + Resistance = Power
What would the pressure be at a tap outlet fed by a column of water 10 metres high?
0.1 bar
2 bar
0.5 bar
1 bar
What best describes the force that keeps the water flowing when siphonic action takes place?
Pressure vessel.
Expansion of the water.
Force applied to the mechanism.
Atmospheric pressure.
Which statement best describes the term Mechanical Advantage?
Change of force to velocity.
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.
What SI unit is used to measure resistance in electrical systems and appliances?
Amps.
Watts.
Volts.
Ohms.
Which trade is responsible for installing a wooden bath panel on a construction site project?
Bricklayer
Painter & Decorator
Electrician
Of the following, which is the most efficient method of relaying information regarding works on a site?
A written letter.
An email.
A phone call.
Via a work colleague.
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.
Staff rotas.
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 schedule of break times across the site.
The timeline of delivery of materials for other trades.
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?
Efficiencies and ways for the task to be completed quickly.
Hazards and who might be at harm.
Payment schedules and the impact on staff morale.
Previous accidents that staff have been involved in on other tasks.
Which of the following is not a surface water source?
Lake.
Reservoir.
Stream.
Well.
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 having to insulate the pipework
To prevent dead legs in a system
To heat the surrounding space of the area in which the pipework is located
Where pipework could be exposed to cold that could lead to pipework freezing
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.
Drain the system and refill.
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?
Access to stored hot water in a power failure.
Less wastage due to water being only heated when needed.
A secondary heat source should the hot water system fail.
Uses less water.
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 component would be replaced as part of the routine maintenance work on an unvented hot water cylinder?
Gate valve.
Outer insulation.
Sacrificial anode.
Expansion vessel.
What purpose does the open vent on the primary circuit of a heating system serve?
Keeps the water in the expansion tank warm.
Provides a filling point for the system.
Relieves excess pressure in the system if it overheats.
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 lowest available bleed point.
At the highest point in the system.
The drain valve.
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 that the system has water in it.
To check for system leaks.
To check for cold spots identifying sludge problems.
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 installed gutter system?
Pour a bucket of water into the gutter.
Pour water over the roof area evenly.
Lay a hose pipe in the gutter and turn on.
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?
Silicone sealant.
A proprietary rubber seal.
Gap filling adhesive.
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.
Why is the maximum air test pressure for a soundness test on a sanitation discharge system 38 mm at the manometer?
To prevent the pipe work being under undue stress
To prevent induced siphonage
To prevent the WC trap seal being lost during testing
To prevent the water seal being lost at the kitchen sink during testing
What forms part of the routine checks on a sanitary system during a maintenance schedule?
Re-washering float operated valves.
Adjusting the water pressure at the water meter.
Removing and cleaning of water traps.
Checking the operation of all taps and valves.
What component is driven by the heat to produce power in a combined heat and power appliance?
Thermocouple.
Sterling engine.
Solar panel.
Circulating pump.
Which building regulation covers the installation requirements of micro-energy conservation systems?
Part A.
Part G.
Part J.
Part P.
When advising a client on the choice of fuel for a system installation, what would be the key deciding factor?
How many people live in the house.
How cold the house is.
The efficiency and availability of fuel to the location.
The age of the property.
What consideration has to be made before installing a biomass boiler?
How many occupants the dwelling has.
There is access to plenty of coal.
There is enough dry internal space for the fuel to be stored.
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, ignition source, oxygen.
Fuel, carbon dioxide, ignition source.
Carbon monoxide, heat, ignition source.
Fuel, gas, heat.
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.
Vertex flue system.
SE duct 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.
Outside air via the flue duct.
From the emissions of the boiler.
What advantage does alternating current have over direct current in electrical installations?
AC current is less likely to cause a serious shock.
AC current uses fewer cables in a property.
AC current is portable in batteries.
AC current can be transmitted over long distances without voltage drop.
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?
Builders merchant's catalogue.
WRAS book.
Manufacturer's technical specification.
Manufacturer user instructions.