This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Comfort Air-Conditioning”. 1. Which of the following is true about the optimum effective temperature for human comfort? a) Same in winter and summer b) Not dependent on season c) Lower in winter than in summer d) Higher in winter than in summer 2. … Read more
This set of Air-Conditioning Questions and Answers for Aptitude test focuses on “Comfort Conditions – Factors Affecting Optimum Effective Temperature”. 1. What is the value of optimum effective temperature in winter? a) 17 b) 18 c) 19 d) 20 2. What is the value of the optimum effective temperature in summer? a) 23 b) 22 … Read more
This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry – Humidification and Dehumidification”. 1. Which of the following denotes Humidification process on the psychrometric chart? a) A horizontal line with an arrow towards right b) Vertical line with arrow upwards c) Horizontal line with an arrow towards right d) Vertical line … Read more
This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry – Adiabatic Mixing of Two Streams”. 1. What is the formula for m1 / m2 in terms of enthalpies for adiabatic mixing of two streams? a) h1 – h2 / h1 – h3 b) h3 – h2 / h1 – h3 c) … Read more
This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry – Inside and Outside Summer Design Conditions”. 1. Which of the following has the highest DBT in the chart of outside summer design conditions? a) Agra b) Ambala c) Banaras d) Bangalore 2. Which of the following has the lowest DBT in … Read more
This set of Air-Conditioning online test focuses on “Psychrometry – Heating and Cooling Factor – 2”. 1. What is the By-pass factor for heating coil, if td1 = 19°C, td2 = 25°C and td3 = 37°C? a) 0.75 b) 0.4 c) 0.7 d) 0.1 2. What is the By-pass factor for cooling coil, if td1 … Read more
This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry – Heating and Cooling Factor – 1”. 1. What is the By-pass factor for heating coil, if td1 = temperature at entry, td2 = temperature at exit and td3 = coil temperature? a) td3 – td1 / td3 – td1 b) td3 … Read more
This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry – By-Pass Factor”. 1. What is the inefficiency of the coil to attain the desired temperature called? a) By-pass factor b) Effectiveness c) Efficiency d) By-pressure factor 2. What is the number of fins provided in a unit length called? a) By-pass … Read more
This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometry – Thermodynamic Wet Bulb Temperature”. 1. What is the alternate name for thermodynamic wet-bulb temperature? a) Isobaric WBT b) Isobaric Saturation Temperature c) Adiabatic WBT d) Adiabatic Saturation Temperature 2. What is the temperature at which air can be brought to saturation … Read more
This set of Air-Conditioning Multiple Choice Questions & Answers (MCQs) focuses on “Psychrometric Chart”. 1. What do vertical and uniformly spaced lines indicate on the psychrometric chart? a) DPT b) WBT c) DBT d) Specific humidity 2. Which of the following is represented by curved lines on the psychrometric chart? a) Specific humidity b) Relative … Read more
