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Power Engineering 3B2 - Chapter 11 Exam Questions And Answers 100% Pass
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Power Engineering 3B2 - Chapter 11 Exam Questions And Answers 100% Pass The automatic expansion valve is controlled by _____________. a. transmitter b. evaporator pressure c. capillary action d. refrigerant level e. the king valve - answerB The thermostatic expansion valve controls refriger...

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  • November 3, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • power engineering 3b2 chapter 11 exam questions

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©THEBRIGHT EXAM SOLUTIONS
10/30/2024 11:32 PM


Power Engineering 3B2 - Chapter 11 Exam
Questions And Answers 100% Pass


The automatic expansion valve is controlled by _____________.


a. transmitter
b. evaporator pressure
c. capillary action
d. refrigerant level

e. the king valve - answer✔B
The thermostatic expansion valve controls refrigerant flow by __________________________.


a. liquid level in the condenser
b. a temperature sensor at the evaporator inlet
c. evaporator pressure
d. liquid level in the evaporator

e. a temperature sensor at the evaporator outlet - answer✔E
The low-side float valve is controlled by ______________.


a. refrigerant level in the receiver
b. the brine level
c. a float connected to/or in the evaporator

, ©THEBRIGHT EXAM SOLUTIONS
10/30/2024 11:32 PM

d. evaporator pressure

e. refrigerant level in the condenser - answer✔C
A capillary tube is mainly used on __________________.


a. large industrial refrigeration units
b. small household systems
c. ammonia systems
d. lithium bromide units

e. absorption systems - answer✔B
The high-side float is usually installed on ____________.


a. the liquid receiver or may act as a float chamber itself
b. the evaporator inlet
c. the condenser
d. the line between the compressor and condenser

e. the line between the condenser and receiver - answer✔A
The capillary tube has a __________________________.


a. very small diameter
b. medium sized diameter
c. large diameter
d. convergent-divergent cross-section

e. concaved cross-sectional area - answer✔A
Refrigeration control can be achieved by regulating the flow of refrigerant to the evaporator
and also by ______________.

, ©THEBRIGHT EXAM SOLUTIONS
10/30/2024 11:32 PM


a. increasing the brine concentration
b. regulating the output of the compressor
c. removing refrigerant from the system
d. increasing the level of the receiver

e. regulating the level of the condenser - answer✔B
The starting and stopping of the compressor is normally done automatically by means of
__________________.


a. a pressure limiting device
b. an automatic low pressure cut-out
c. either a temperature actuated control or a pressure actuated control
d. a rheostat

e. a heat sensor in the evaporator - answer✔C
Condenser cooling water is usually controlled by ______________.


a. level controls
b. cooling tower demands
c. solenoid valves
d. hand operated gate valves

e. the level in the receiver - answer✔C
A low-pressure control in a refrigerating system can be used for _________________.


a. condenser pressure control
b. to start and stop the compressor

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