Condensing point Study guides, Class notes & Summaries
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2023 AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/1F Chemistry Paper 1F Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
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2023 AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/1F Chemistry 
Paper 1F Question Paper & Mark scheme (Merged) June 2023 [VERIFIED] 
Materials 
For this paper you must have: 
• a ruler 
• a scientific calculator 
• the periodic table (enclosed). 
Instructions 
• Use black ink or black ball-point pen. 
• Pencil should only be used for drawing. 
• Fill in the boxes at the top of this page. 
• Answer all questions in the spaces provided. 
• If you need extra space for your answer(s), ...
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HVAC Gas Heat certification exam Questions and Answers 100% Pass
- Exam (elaborations) • 10 pages • 2024 Popular
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HVAC Gas Heat certification exam 
Questions and Answers 100% Pass 
A gas furnace is to be installed in a garage. The national standards require that the 
burners and ignition sources must be located ______ above the floor - Correct Answer ️️ 
-18 inches 
A good description of how a bi-metal fan switch operates the blower motor on a gas 
furnace is - Correct Answer ️️ -Temperature on- temperature off 
Redundant gas valves used on gas furnaces have - Correct Answer ️️ -Dual gas shut 
o...
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AQA GCSE COMBINED SCIENCE: TRILOGY 8464/C/1F Chemistry Paper 1F Version: 1.0 Final *JUN238464C1F01* IB/M/Jun23/E5 8464/C/1F QUESTION PAPER & MARKING SCHEME/ [MERGED]
- Exam (elaborations) • 59 pages • 2024
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GCSE 
COMBINED SCIENCE: TRILOGY 
8464/C/1F 
Chemistry Paper 1F 
Version: 1.0 Final 
 
*JUN238464C1F01* 
IB/M/Jun23/E5 8464/C/1F 
 For Examiner’s Use 
Question Mark 
1 
2 
3 
4 
5 
6 
7 
TOTAL 
Monday 22 May 2023 Morning Time allowed: 1 hour 15 minutes 
Materials 
For this paper you must have: 
• a ruler 
• a scientific calculator 
• the periodic table (enclosed). 
Instructions 
• Use black ink or black ball-point pen. 
• Pencil should only be used for drawing. 
• Fill in the boxes ...
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Practicals Chemistry AQA A-level Rated A+
- Exam (elaborations) • 24 pages • 2023
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Practicals Chemistry AQA A-level Rated A+ 
Required Practical 1 - titration and making a standard solution 
Making a standard solution 1. weigh the required mass of solid using a sample bottle on a 2 dp balance. 
2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 
3. reweigh the sample bottle and work out the difference. 
4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a...
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RMO 1-109 EXAM QUESTIONS AND ANSWERS
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1. The efficiency of the refrigerant cycle is affected by the operation of the condenser. Of the following, a more efficient centrifugal compressor operation results from: 
 
A. Raising the condenser liquid level to the maximum 
B. Lowering the chilled water set point 
C. Raising the condenser head pressure 
D. Lowering the condensing pressure - Answer-D. Lowering the Condensing Pressure 
 
2. The heat removed from the refrigerant in a condenser is: 
 
A. Sensible and latent heat 
B. Latent ...
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FDNY Z51 RMO Set Test Questions And Verified Correct Solutions | Updated
- Exam (elaborations) • 58 pages • 2024
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FDNY Z51 RMO 
Set Test Questions And Verified 
Correct Solutions | Updated 
The efficiency of the refrigerant cycle is affected by the operation 
of the condenser. Of the following, a more efficient centrifugal 
compressor operation results from: 
a. Raising the condenser liquid level to the maximum 
b. Lowering the chilled water set point 
c. Raising the condenser head pressure 
d. Lowering the condensing pressure 
d. Lowering the condensing pressure 
The heat removed from the refrigerant in ...
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HVAC CFC TEST WITH CORRECT SOLUTIONS
- Exam (elaborations) • 30 pages • 2023
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HVAC CFC TEST WITH CORRECT SOLUTIONS 
Absolute pressure 
Boiling Point 
Condensing point 
 
Chillers. 
 
Basic types of chillers. 
 
Chlorofluorocarbons (CFCs) 
 
Class I substances 
Hydrochlorofluorocarbons (HCFCs) 
 
Class II substances 
 
Hydrofluorocarbons (HFCS) 
Perfluorocarbons (PFCs). 
 
High pressure refrigerants 
 
Low pressure refrigerants 
 
Viscosity. 
 
Flash Point 
Fire Point. 
 
Pour Point 
Troposphere.
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iGCSE single science chemistry SOLVED
- Exam (elaborations) • 44 pages • 2024
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Describe how a solid undergoes melting - ANSWER-The energy from the heat source 
will make the solid particles vibrate faster and faster to a point that their forces of 
attraction loss their strength and the particles are able to move around. 
Melting point - ANSWER-The temperature at which a solid becomes a liquid 
Describe what happens when a liquid undergoes freezing - ANSWER-The particles will 
move around slowly to the point where the forces of attraction between the particles will 
hold t...
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HVAC Gas Heat certification exam Questions and Answers 100% Pass
- Exam (elaborations) • 10 pages • 2024
- Available in package deal
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- $12.49
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HVAC Gas Heat certification exam 
Questions and Answers 100% Pass 
A gas furnace is to be installed in a garage. The national standards require that the 
burners and ignition sources must be located ______ above the floor - Correct Answer ️️ 
-18 inches 
A good description of how a bi-metal fan switch operates the blower motor on a gas 
furnace is - Correct Answer ️️ -Temperature on- temperature off 
Redundant gas valves used on gas furnaces have - Correct Answer ️️ -Dual gas shut 
o...
-
HVAC Gas Heat certification exam Questions & 100% Verified Answers | Latest Update | Already Graded A+
- Exam (elaborations) • 17 pages • 2024
- Available in package deal
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- $12.49
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A gas furnace is to be installed in a garage. The national standards require that the 
burners and ignition sources must be located ______ above the floor 
: 18 inches 
A good description of how a bi-metal fan switch operates the blower motor on a gas 
furnace is 
: Temperature on- temperature off 
Redundant gas valves used on gas furnaces have 
: Dual gas shut off seats 
Burning one cubic foot of liquefied petroleum gas completely will produce approximately 
______ BTUs 
: 
LP gas has a spe...
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