Fdny cycle 3 - Study guides, Class notes & Summaries

FDNY A21 Cycle 1&2 Guide Verified Questions And Answers 2023 -one bed of 3-1/2 inch hose -one bed of 2-1/2 inch hose -two beds with lead lengths of 1-3/4 inch hose coupled to 2-1/2 inch hose to finish out the load The typical hose load has: no more than six lengths of 1-3/4 hose shall be used as lead lengths. this is because any more than six lengths may cause greater friction loss and may exceed the maximum working pressure of 250 psi. How many lengths of 1-3/4 hose shall be used as lea...

FDNY A21 Cycle 1&2 guide latest update 100% correct The typical hose load has: -one bed of 3-1/2 inch hose -one bed of 2-1/2 inch hose -two beds with lead lengths of 1-3/4 inch hose coupled to 2-1/2 inch hose to finish out the load How many lengths of 1-3/4 hose shall be used as lead lengths in any hose stretch and why?: no more than six lengths of 1-3/4 hose shall be used as lead lengths. this is because any more than six lengths may cause greater friction loss and may exceed the maximum worki...

FDNY cycle 2&3 study guide

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 Lowering the condenser pressure In most semi hermetic compressors, the suction vapor is used too Cool's the motor The amount of refrigerant that flows through the orifices of an economizer is determined by the Difference between the high side and the low side pressure the instalation of an inline refrigera...

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 lowering the condenser pressure In most semi hermetic compressors, the suction vapor is used for cools the motor The amount of refrigerant that flows through the orifices of an economizer is determined by the difference between the high side and the low side pressure the instalation of an inline refrigerant...

FDNY Cycle 2&3 Study Guide Exam Questions and Answers 2024/2025( A+ GRADED 100% VERIFIED).

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 lowering the condenser pressure In most semi hermetic compressors, the suction vapor is used for cools the motor The amount of refrigerant that flows through the orifices of an economizer is determined by the difference between the high side and the low side pressure the instalation of an inline refrigerant...

FDNY Cycle 5 & 6 Questions and Answers Graded A+ What is inline pumping? A stretch of the supply line where the hydrant is located before the fire In a 4 man engine, who is the hose and hydrant FF? Hose = Back Up Hydrant = Control In a 5 man engine, who is the hose and hydrant FF? Hose = Door Hydrant = Control What is done after the hydrant is deemed serviceable for in line pumping? The hose FF keys the hydrant by pulling enough 3 1/2 hose from the hose bed and takes a turn around the hydrant...

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 Answer: Lowering the condensing pressure 2. The heat removed from the refrigerant in a condenser is Answer: Sensible and Latent Heat 3. The refrigerant unit that you have been assigned to is being taken out of service for a major repair. You have been assigned to withdraw refrigerant for storage in suitable containers. Accord...

RMO Final Exam Questions and Complete Solutions A standpipe system will be out of service for two days. How long should there be a fire Watch? A) The first 24 hours B) The entire time the standpipe is out of service C) The first 12 hours D)The last 12 hours of the day - Answer: The entire time the standpipe is out of service. The only refrigerant temperature chart available to a refrigerant engineer lists the temperature in degrees Celsius. If the chart indicates a Celsius temperat...