Copy and Edit

Central Heating 3

Description

Quiz on Central Heating 3, created by Jarmo Tossavainen on 14/05/2018.
Jarmo Tossavainen
Quiz by Jarmo Tossavainen, updated more than 1 year ago
Jarmo Tossavainen
Created by Jarmo Tossavainen about 6 years ago
677
2
0

Resource summary

Question 1

Question
A heating circuit in which the flow and return pipes are completely separated until they connect to the boiler is known as a
Answer
  • a) one pipe system
  • b) two pipe system
  • c) sealed system
  • d) gravity system.

Question 2

Question
A British Standard that includes detail on the requirements for installing open vented central heating systems in dwellings is
Answer
  • a) BS EN 12056
  • b) BS 6700
  • c) BS EN 12828
  • d) BS 5449.

Question 3

Question
Which pipe connects to port X in the diagram of an air separator below?
Image:
Air Sep (binary/octet-stream)
Answer
  • a) Open vent pipe.
  • b) Primary flow to system.
  • c) Primary flow from boiler.
  • d) Cold feed pipe.

Question 4

Question
What is the recommended actual capacity of the feed and expansion cistern in a small open vented indirect central heating system?
Answer
  • a) 6 litres
  • b) 18 litres
  • c) 52 litres
  • d) 100 litres.

Question 5

Question
What is the name of the component shown below?
Image:
Trv (binary/octet-stream)
Answer
  • a) Temperature relief valve.
  • b) Pressure relief valve.
  • c) Pressure regulating valve.
  • d) Thermostatic radiator valve.

Question 6

Question
Which one of the following gas boilers overcomes the need for a cold water storage cistern, feed and expansion cistern and hot water storage vessel?
Answer
  • a) Back-boiler.
  • b) Traditional.
  • c) Combination.
  • d) Room-heater.

Question 7

Question
What is the recommended maximum clip spacing distance for a vertical 15 mm copper pipe?
Answer
  • a) 1200 mm.
  • b) 1800 mm.
  • c) 2000 mm.
  • d) 2500 mm.

Question 8

Question
The Domestic Heating Compliance Guide supports which document?
Answer
  • a) British Standard 8000.
  • b) The Water Supply (Water Fittings) Regulations.
  • c) British Standard 5449.
  • d) Building Regulations Approved Document L1.

Question 9

Question
Minimum controls which must be provided when replacing a gravity fed cylinder supplied from a gas boiler, as laid down in the Domestic Heating Compliance Guide, is
Answer
  • a) a thermo-mechanical thermostat
  • b) no minimum control required
  • c) fully motorised two port valve
  • d) electronic thermostat.

Question 10

Question
What type of heat emitter is shown in the following photograph?
Image:
Column Radiator (binary/octet-stream)
Answer
  • a)Hospital radiator.
  • b) Panel radiator.
  • c) Column radiator.
  • d) Skirting heater.

Question 11

Question
The drawing below shows the connection arrangements to a feed and expansion cistern, pump, open vent and cold feed pipe. What is the likely outcome of positioning the system in the left shown?
Image:
Pump Positions (binary/octet-stream)
Answer
  • a) The cold feed pipe is at the point of highest positive pressure.
  • b) The system will be largely under negative pressure.
  • c) A neutral pressure will be maintained in all system pipework.
  • d) The system will pump over the open vent pipe.

Question 12

Question
The minimum size of the cold feed pipe to a fully pumped heating system in a domestic dwelling is
Answer
  • a) 15 mm
  • b) 22 mm
  • c) 28 mm
  • d) 35 mm.

Question 13

Question
A three-port mid-position valve can provide heated water to
Answer
  • a) only the heating circuit
  • b) only the hot water circuit
  • c) both the heating and hot water circuit, but not both together
  • d) both the heating or hot water circuit and both together.

Question 14

Question
What type of central heating control component is normally used in conjunction with a frost thermostat to conserve energy when exposed parts of a central heating system are required to be protected against frost damage?
Answer
  • a) Room thermostat
  • b) Pipe thermostat.
  • c) Automatic bypass valve.
  • d) Frost relief valve.

Question 15

Question
Water in a wet central heating system is normally treated with
Answer
  • a) sodium hypochlorite
  • b) corrosion inhibitor
  • c) caustic soda solution
  • d) disinfectant.

Question 16

Question
What type of central heating component is shown in the photograph below?
Image:
Room Thermostat (binary/octet-stream)
Answer
  • a) Programmer.
  • b) Timer.
  • c) Motorised valve.
  • d) Room thermostat.

Question 17

Question
The method by which panel radiators transmit most of their heat is
Answer
  • a) conduction
  • b) convection
  • c) radiation
  • d) condensation.

Question 18

Question
The water level in the feed and expansion cistern of a central heating system should be set to allow sufficient room for
Answer
  • a) thermal expansion of the water
  • b) coping with pumping over
  • c) air venting
  • d) reduction of noise when filling.

Question 19

Question
The normal position for a cylinder thermostat that is strapped to a cylinder is approximately
Answer
  • a) at the top of the cylinder
  • b) a third of the way down the cylinder from the top
  • c) half way down the cylinder
  • d) a third of the way up from the bottom of the cylinder.

Question 20

Question
The type of heating system that uses 2 x two port motorised valves is known as a
Answer
  • a) A thermostatic radiator valve.
  • b) A lockshield type valve.
  • c) A wheelhead type valve.
  • d) An electro mechanical valve.

Question 21

Question
Which component is used in a heating system fitted with a low water content boiler to ensure that a minimum water flow rate is maintained through the boiler heat exchanger at all times?
Answer
  • a) Automatic bypass valve.
  • b) Pressure relief valve.
  • c) Pressure reducing valve.
  • d) Lockshield gate valve.

Question 22

Question
A central heating control component which can regulate the on/off periods of two or more zones in a system is known as a
Answer
  • frost thermostat
  • room thermostat
  • thermo-mechanical valve
  • programmer.

Question 23

Question
Before you carry out a hydraulic pressure test on a new central heating system you should perform
Answer
  • a) a full disinfection of the system
  • b) a hot flush of the system and add corrosion inhibitor
  • c) a visual inspection of the system
  • d) a heat loss calculation of the system.

Question 24

Question
The following diagram shows the actions of which component in a heating system?
Answer
  • a) Boiler fan.
  • b) Circulating pump.
  • c) Shower pump.
  • d) Diverter valve.
Show full summary Hide full summary

Want to create your own Quizzes for free with GoConqr? Learn more.

Similar

Geometry Formulas (Perimeters)
PatrickNoonan
River Processes and Landforms
1jdjdjd1
GCSE PE - 1
lydia_ward
Cell Structure
daniel.praecox
Application of technology in learning
Jeff Wall
Biological Psychology - Stress
Gurdev Manchanda
PSBD TEST # 3
Suleman Shah
Conferences of the Cold War
Alina A
New English Literature GCSE
Sarah Egan
1_PSBD New Edition
Ps Test
ОБЖ1
хомяк убийца
Browse Library