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Question 1
A standard single-stage vapor compression cycle operating with R134a has a specific enthalpy at the evaporator outlet (suction) of h_1 = 402 kJ/kg and a specific enthalpy at the expansion valve inlet of h_4 = 252 kJ/kg. What is the specific refrigerating capacity (spezifische Kälteleistung q_0)?
Correct Answer:
150 kJ/kg
Question 2
In an R449A refrigeration system, the specific refrigerating capacity is q_0 = 160 kJ/kg and the specific isentropic work of compression is w_c = 32 kJ/kg. What is the theoretical coefficient of performance (Kälteleistungszahl COP / ε)?
Correct Answer:
5.0
Question 3
A cold storage facility requires a total cooling capacity of Q_0 = 36 kW. If the specific refrigerating capacity of the cycle is q_0 = 180 kJ/kg, what is the required refrigerant mass flow rate (Kältemittel-Massenstrom m_dot)?
Correct Answer:
0.20 kg/s (12.0 kg/min)
Question 4
A refrigeration system operates with an evaporator cooling capacity of Q_0 = 50 kW. The compressor indicated mechanical power input to the refrigerant is P_i = 15 kW. Neglecting heat losses from the compressor housing and piping, what is the total condenser heat rejection rate (Verflüssigerleistung Q_c)?
Correct Answer:
65 kW
Question 5
An ideal Carnot refrigeration cycle operates between an evaporating temperature of t_0 = -10 °C and a condensing temperature of t_c = +35 °C. What is the theoretical Carnot coefficient of performance (Carnot-Kälteleistungszahl ε_C)?
Correct Answer:
5.85
Question 1
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Prepare with the Meisterprüfung Kälte- und Klimatechnik Practice Questions - Meisterprüfung Kälte- und Klimatechnik (Austria) Exam practice quiz. This question bank includes 100 questions covering refrigeration, compressor, refrigerant, pressure, and specific. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

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Meisterprüfung Kälte- und Klimatechnik Practice Questions - Meisterprüfung Kälte- und Klimatechnik (Austria) Exam

This practice set contains 100 questions from the matching question bank and focuses on refrigeration, compressor, refrigerant, pressure, and specific. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

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