- Study guides, Class notes & Summaries

NYC RMO EXAM, CHAPTER 23 (Electricity Fundamentals) EXAM REVIEW QUESTIONSWITH CORRECT SOLUTIONS UPDATED 2025/2026 SYLLABUS ALREADY GRADED!!100% GUARANTEED PASS!!!<<BRAND NEW VERSION>> 23.1.) If you suspected that a motor was about to go off on overload, which electrical test device would you use to confirm this condition? - ANSWER ammeter 23.2.) Ohm's law describes the relationship between; voltage, current and resistance. What are the units used to measure these elect...

-

4 pages

Written in 2025/2026

Grade A+

SmartscoreAaron

23.01.) A motor is operating from a 120 volt power source; it is drawing 30 amps and has a resistance of 4 ohms. How many kilowatts it is consuming at full load? Ans-3.6 23.02.) For a single test device to qualify as a multi-meter, which of the following electrical units must be measured? Ans-Voltage, amperage, resistance 23.03.) Which of the following best describes the power source used by a two horsepower induction motor? Ans-Three phase power source

-

4 pages

Written in 2024/2025

Grade A+

cracker

NYC RMO Chapter 14 EXAM QUESTIONS AND CORRECT ANSWERS A pressure gauge reads 14.7 psig. What is the pressure per square foot. - CORRECT ANSWERS 2116 Find the exposed surface area of a pipe, 3" in diameter and 100' long. - CORRECT ANSWERS 11,304 590 Find the volume ( in cubic feet) of a flooded evaporator; 5' in diameter and 30' long. - CORRECT ANSWERS A cooler is 72" in diameter and 35' long. 85/ gross volume, in (Ft squared) is? - CORRECT ANSW...

-

3 pages

Written in 2025/2026

Grade A+

StudyWithNatalie

NYC RMO, CHAPTER 9 EXAM QUESTIONS AND CORRECT ANSWERS 9.01.) Which of the following is considered the most common source of non-condensable gases? - CORRECT ANSWERS Air 9.02.) If a compressor is operated with its suction service valve closed and its discharge service valve open, which of the following will take place? - CORRECT ANSWERS gases may be drawn into the system Non-condensable 9.03.) It is determined that a system is being affected by high condenser pressure. Whi...

-

3 pages

Written in 2025/2026

Grade A+

StudyWithNatalie

NYC RMO UPDATED FINAL EXAM QUESTIONS AND CORRECT ANSWERS 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 condenser pressure - CORRECT ANSWERS pressure The heat removed from the refrigerant in a condenser is a...

-

13 pages

Written in 2025/2026

Grade A+

StudyWithNatalie

NYC RMO EXAM, CHAPTER 16 (Refrigeration Code) EXAM REVIEW QUESTIONSWITH CORRECT SOLUTIONS UPDATED 2025/2026 SYLLABUS ALREADY GRADED!!100% GUARANTEED PASS!!!<<BRAND NEW VERSION>> 16.1.) The maximum permissible number of pounds of group 2 refrigerant for an indirect system in a commercial building for a class T machine room is? - ANSWER No limit 16.2.) The "safety code for mechanical refrigeration" calls for ducts on one or more power driven exhaust fans, to remove g...

-

6 pages

Written in 2025/2026

Grade A+

SmartscoreAaron

NYC RMO EXAM, CHAPTER 26 (Troubleshooting) EXAM REVIEW QUESTIONSWITH CORRECT SOLUTIONS UPDATED 2025/2026 SYLLABUS ALREADY GRADED!!100% GUARANTEED PASS!!!<<BRAND NEW VERSION>> 26.1.) The following is an indication that a system's cooling tower is not operating as designed. - ANSWER High head pressure 26.2.) Of the following conditions, the one that would not result in high discharge pressure would be? - ANSWER Gas in the liquid line 26.3.) An air-cooled package AC unit...

-

5 pages

Written in 2025/2026

Grade A+

SmartscoreAaron

NYC RMO STUDY GUIDE EXAM REVIEW QUESTIONSWITH CORRECT SOLUTIONS UPDATED 2025/2026 SYLLABUS ALREADY GRADED!!100% GUARANTEED PASS!!!<<BRAND NEW VERSION>> The NYC RMO is a highly competitive exam that serves as the first major stepping stone towards the USAMO (United States of America Mathematical Olympiad) and the IMO (International Mathematical Olympiad). The problems require deep conceptual understanding, creativity, and flawless proof-writing skills, not just computational ...

-

9 pages

Written in 2025/2026

Grade A+

SmartscoreAaron

NYC RMO EXAM, CHAPTER 18 (Engine Indicators) EXAM REVIEW QUESTIONSWITH CORRECT SOLUTIONS UPDATED 2025/2026 SYLLABUS ALREADY GRADED!!100% GUARANTEED PASS!!!<<BRAND NEW VERSION>> 18.1.) What type of seal is likely to be used in a midsize reciprocating compressor? - ANSWER Mechanical 18.2.) How many bearings are needed at the shaft of a reciprocating compressor? - ANSWER 2 18.3.) Which of the following is used to create a gas tight connection between the valve plate, compr...

-

5 pages

Written in 2025/2026

Grade A+

SmartscoreAaron

NYC RMO EXAM, CHAPTER 25 (Thermostatic Expansion Valves) EXAM REVIEW QUESTIONSWITH CORRECT SOLUTIONS UPDATED 2025/2026 SYLLABUS ALREADY GRADED!!100% GUARANTEED PASS!!!<<BRAND NEW VERSION>> 25.1.) When a refrigerant such as R-22 passes through a TEV both pressure and temperature are reduced. Which of the following is directly responsible for the reduction in temperature? - ANSWER Flashing of refrigerant 25.2.) What would happen if a TEV's superheat spring did not exert s...

-

4 pages

Written in 2025/2026

Grade A+

SmartscoreAaron

Nyc - Final Rmo | 101 Questions | With Complete Solutions!!

-

60 pages

Written in 2024/2025

Grade A+

EvaTee

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 condenser pressure - ANSWERSLowering the condensing pressure The heat removed from the refrigerant in a condenser is a. sensible and latent heat b. latent heat only c. radia...

-

9 pages

Written in 2024/2025

Grade A+

Bestgrades2

NYC - Final RMO Exam with Questions and Correct Answers 2025. NYC - Final RMO Exam with Questions and Correct Answers 2025.NYC - Final RMO Exam with Questions and Correct Answers 2025.NYC - Final RMO Exam with Questions and Correct Answers 2025.NYC - Final RMO Exam with Questions and Correct Answers 2025.

-

8 pages

Written in 2024/2025

Grade A+

PASSMASTERS

NYC RMO Tests|Bundle Set

-

10 items

cracker

11.01.) An operator is running two centrifugal water pumps in parallel; one of the pumps is operating at its maximum flow rate. If the operator throttles back on the discharge valve of the second pump, which of the following will take place? Ans-A reduction in both the water flow and pressure 11.02.) Which of the following valves should not be used to regulate flow? Ans-Gate 11.03.) Which of the following will not cause a pump to cavitate? Ans-Air entering through the pump seals

-

3 pages

Written in 2024/2025

Grade A+

cracker

18.01.) When attempting to read the high pressure gauge on an operating ammonia compressor, it is noted that the pointer "hunts" (has a wide and relatively slow back and forth movement). This would most likely indicate that the compressor? Ans-Valve action is sluggish 18.02.) Of the following statements, which one is correct regarding an engine indicator diagram? Ans-An abnormal diagram indicates a mechanical problem with the compressor

-

6 pages

Written in 2024/2025

Grade A+

cracker

26.01.) While conducting a tour of the refrigeration plant, an operator notices a significant increase in the amount of superheat in a particular reciprocating system. Which of the following would be a possible cause for this condition? Ans-Location of the thermal bulb 26.02.) In a high side float refrigeration system, what does frost on the suction line indicate? Ans-There is an excess of refrigerant in the system

-

6 pages

Written in 2024/2025

Grade A+

cracker

25.01.) TEVs are usually rated by? Ans-Tons of refrigeration 25.02.) Which of the following does a TEV control? Ans-Flow of refrigerant to the evaporator 25.03.) When installing a TEV sensing bulb, where should it be placed to assure correct operation? Ans-At the end of the evaporator

-

4 pages

Written in 2024/2025

Grade A+

cracker

16.01.) With reference to specific minimum requirements for refrigerant pipe and tubing, one of the following is most nearly correct? Ans-Standard I.P.S. copper, brass pipe and tubing shall not be less than 80% copper (ask professor) 16.02.) How many stop valves are required by code in a system using 60 lbs. of "group one" refrigerant, and having two compressors and two receivers? Ans-Four (ask professor) 16.03.) Which of the following ASHRAE "designation and safety classification...

-

7 pages

Written in 2024/2025

Grade A+

cracker

17.01.) If a compression refrigeration system is operating at the standard ton conditions of 86 degrees F on the high side and an evaporator temperature of 5 degrees F. These temperatures corresponding to suction pressure of 34.27 psia, and a head pressure of 169.2 psia. Based on these values, what will the compression ratio be? Ans-4.94 17.02.) Which set of operating conditions would require the use of a booster compressor? Ans-15 psig/ 280 psig

-

3 pages

Written in 2024/2025

Grade A+

cracker

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 condenser pressure Ans-Lowering the condensing pressure The heat removed from the refrigerant in a condenser is a. sensible and latent heat b. latent heat only c. radiant he...

-

15 pages

Written in 2024/2025

Grade A+

cracker