Absolute signal Study guides, Class notes & Summaries

A block that may be occupied by only one train at a time. - Answer-Absolute Block A color light color positon light or semaphore signal without a number plate a "P" marker, "APP" marker "C" marker or "G" marker that conveys stop as its most restrictive indication. - Answer-Absolute Signal A railroad crossing at grade it is protected by signals which are actuated automatically by the approach of a train. - Answer-Automated Railroad Crossing A block signal that is activated either by ...

Sensation - correct answers is the process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment. Perception - correct answers is the process of organizing and interpreting sensory information, enabling us to recognize meaningful objects and events. Bottom-up processing - correct answers analysis that begins with the sensory receptors and works up to the brains's integration of sensory information. Example: putting a puzzle together...

BNSF-Maintenance of Way Operating Rules Latest Update Graded A+ TWC Track warrant control- method to authorize train movements or protect men and equipment on a main track within specified limits in a territory designated by the timetable. Effective locking device When used in relation to a manually operated switch or derail, a lock that can be locked or unlocked only by the craft or group of workers applying the lock. Main Track A track extending through yards and between stations t...

LIRR Assistant Conductor DEFINITIONSBlock - correct answer Block- A length of track of defined limits, the use of which is governed by block signals, block-limit signals, automatic speed control or any combination thereof. Absolute Block - correct answer Absolute Block- A block established between block stations, block-limit stations, interlockings or any combination thereof which must not be occupied by more than one train except as provided by the rules. Automatic Block Signal Syst...

Produced when a signal from the SA node spreads through the atria on a ECG - Answer- P-Wave Detects electrical current in the heart - Answer- Electrocardiogram Generated by ventricular repolarization - Answer- T-Wave produced when signal from AV node spreads through ventricular myocardium and depolarizes muscle - Answer- QRS complex The heart beats due to this - Answer- autorhythmicity Charge shifts from negative to positive - Answer- Depolarization Nerve like process that spre...

Spectrum Field Technician 1 Test Questions and Answers 100% CorrectSpectrum Field Technician 1 Test Questions and Answers 100% CorrectSpectrum Field Technician 1 Test Questions and Answers 100% CorrectSpectrum Field Technician 1 Test Questions and Answers 100% Correct Decibel (dB) - ANSWER-Relative # of signal gain or loss through a device or cable. Decibel millivolt (dBmV) - ANSWER-Absolute # of signal strength. Foreign voltage detector (FVD) - ANSWER-Detects unwanted voltage on cables/s...

BNSF PRACTICE EXAM 1 WITH COMPLETE SOLUTIONS ETD End-of-Train Telemetry Device -Mounted on the end of a freight train. -Indicates the end of the train and provides brake pipe pressure readings to the crew in the cab. -When armed to HTD, it provides capability in the cab to initiate an emergency brake application from the rear of the train. -Sometimes referred to as FRED or SBU CROSSOVER A track w/ switches @ both ends that connect 2 adjacent tracks. -used primarily to move from one ...

BNSF Train Dispatcher Final Exam Questions And Answers (Verified And Updated) A block or interlocking signal without a number plate, or designated by an A marker. - answerAbsolute Signal A siding within CTC or interlocking limits where a signal indication authorizes the siding's use. - answerControlled Siding An absolute signal controlled by a control operator. - answerControlled Signal The tracks between outer opposing absolute signals of an interlocking - answerInterlocking Limits A...

Field Tech 1 Exam Questions and Answers Latest 2023/2024 (100% Verified). Upstream frequency ranges between 5Mhz and 42Mhz Downstream frequency ranges Between 50MHz 860MHz Upstream frequency ranges 5MHz and 42 MHz A 6 MHz downstream channel can hold 2-4 hd channels or 8-12 standard definition channels Egress When a signal leaks out of a cable Ingress when a signal leaks into a cable Field technicians are responsible from The tap to the CPE (customer premise equipement) Field Tech 1 Exam ...

Upstream frequency ranges - between 5Mhz and 42Mhz Downstream frequency ranges - Between 50MHz 860MHz Upstream frequency ranges - 5MHz and 42 MHz A 6 MHz downstream channel can hold - 2-4 hd channels or 8-12 standard definition channels Egress - When a signal leaks out of a cable Ingress - when a signal leaks into a cable Field technicians are responsible from - The tap to the CPE (customer premise equipement) The most preferred BER is measured in ________ and is shown as _______ - Billio...