
Central Heating ppt 2
Quiz
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Professional Development
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Professional Development
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mike coldman
Used 3+ times
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17 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of determining the size of a heat emitter?
To increase the building's temperature
To replace lost heat and meet design temperatures
To reduce energy consumption
To improve air quality
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What determines the output of a radiator according to the learning material?
Size and number of convectors
Color of the radiator
Material of the radiator
Brand of the radiator
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the Mean Water Temperature (MWT) of a radiator calculated?
Flow temp + return temp / 2
Flow temp - return temp
Flow temp * return temp
Flow temp / return temp
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is Delta T50 used for in the context of radiator heat outputs?
To show heat outputs in the UK
To measure radiator size
To calculate water flow rate
To determine radiator color
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two main factors that the boiler heat output depends on?
The type of fuel used and the design of the system
The requirement of heat to the heat emitters and the requirement for hot water
The size of the boiler and the efficiency of the system
The cost of installation and the brand of the boiler
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the formula for calculating heat input into a hot water storage cylinder?
SHC x litres of water x temp. difference (Δt) x boiler efficiency / Time in seconds x 100
SHC + litres of water + temp. difference (Δt) + boiler efficiency / Time in seconds x 100
SHC x litres of water + temp. difference (Δt) x boiler efficiency / Time in seconds
SHC + litres of water x temp. difference (Δt) + boiler efficiency / Time in seconds
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the specific heat capacity of water used in the formula?
4.19kj/kg/°C
3.18kj/kg/°C
5.20kj/kg/°C
2.15kj/kg/°C
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