Browse all practice questions for the Con Edison Test B – Gas Safety, Electrical Theory, and Job Procedures Practice Test. Search by topic, open any question and review its full explanation, then test yourself in the practice quiz.

Con Edison Test B Practice Exam 2026 - Free Gas Safety, Electrical Theory, and Job Procedures Practice Questions and Study Guide course image
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  • How often should contaminated arc proof be removed when asbestos is present?
  • What does a gas detector bump test ensure?
  • When must a safety zone be established?
  • What is considered high voltage?
  • In a three-phase system, what voltage is measured between secondaries?
  • What must you do if you see oil in a hole?
  • What is the purpose of performing soap testing at joints during repair?
  • What is the primary purpose of wheel chocks?
  • Which knot is used to sling up a wire?
  • Class gloves maximum working voltage for Class 0 gloves?
  • Which statement is NOT an appropriate response to a gas leak that is not immediately dangerous?
  • Which knot is used to tie off cable?
  • Who is responsible for safety on the job site?
  • To legally operate a cable truck, you must have CDL with endorsement X. Which is it?
  • What is the purpose of tags in safety procedures?
  • Which unit is used to measure electrical power?
  • Which step is part of proper response to a potential gas leak in a confined space?
  • How should you verify that a valve is fully closed after an isolation?
  • What class gloves are rated for 7,500 volts working?
  • Which statement about a C-Fault is true?
  • After turning off gas at the meter during an emergency, what is the recommended action?
  • Which unit measures potential difference?
  • In duct work, from where should the steel line exit?
  • What does Ohm's Law state in the context of basic electrical theory?
  • What size basket is used on secondary cable?
  • When must slings and ropes be inspected?
  • How should you handle a minor gas leak that is not immediately dangerous?
  • Where must PCBs always be assumed present?
  • What is the purpose of regulator venting and where should the vent be directed?
  • Which statement about primary cables locations is correct?
  • If current is stepped up in a transformer, what happens to voltage?
  • Before performing excavation near underground gas lines, what is a critical preparatory step?
  • Which are typical indicators of a regulator malfunction?
  • Which device is used to quantify tension on a pulling line during installation?
  • On a single-phase 75 kVA transformer, what is the minimum secondary conductor size?
  • What is the maximum allowable level of hydrogen sulfide (H2S) in air?
  • What is the first step in sealing a cable?
  • What is the minimum safe distance between a propane tank and an opening hole?
  • In the event of a gas leak, what is a correct sequence of actions?
  • What is the function of a gas regulator in the distribution system?
  • Where are primary ducts located?
  • How often must rubber gloves be electrically tested?
  • Which H2S reading is within the allowable limit of being less than 5 ppm?
  • What protects cable from abrasion at the duct edge?
  • What is the function of a gas meter check valve?
  • If oil is found in a hole, which action is recommended?
  • What type of ladder must be used for electrical work?
  • What primary distribution voltages does Con Edison use?
  • Which PPE protects your face from hazards?
  • What is the role of official gas safety documentation after completing field work?
  • How can you identify a customer service connection versus the mainline in a gas system?
  • Why is it important to ventilate gas work areas?
  • What does Signal 10 mean?
  • What is the acceptable methane (CH4) level in the atmosphere?
  • What type of clothing must be worn when working on live electrical conductors?
  • If a hiss or frost is detected near the gas line, what should you avoid?
  • The primary hazard of releasing gas into a confined space is:
  • Before operating the winch, which power system must be engaged?
  • What is the purpose of arc proofing?
  • What action must be taken before entering a structure?
  • What is used to control a swinging load?
  • What should you do after joints are assembled and before pressurizing the system?
  • What minimum distance should a propane tank be kept from a hole?
  • Which item is used to pull cables?
  • How should you respond to a gas leak discovered in an outdoor manhole or vault?
  • Which of the following is a primary hazard associated with gas leaks if not addressed promptly?
  • What is the role of a gas safety permit expiration and renewal?
  • Where is the basket size found?
  • Which action is appropriate before pressurizing a gas line when testing for leaks?
  • Which instrument measures pulling tension?
  • In a three-phase system, what is the line-to-line voltage for the standard secondary system?
  • Which knot helps prevent rope from sliding when used to secure a line around a basket or drum?
  • What is the acceptable hydrogen sulfide reading?
  • What is the primary purpose of labeling shutoffs during gas work?
  • Which control activates the winch on a cable truck?
  • Oil in a hole requires contacting EHS and performing which actions?
  • According to Ohm's Law, which two quantities are directly proportional?
  • Are you allowed to enter a structure with a D-Fault?
  • What are safe evacuation distances and procedures if a gas leak is detected outside?
  • What are the consequences of improper gas piping repairs?
  • What is the role of a gas detector bump test?
  • What device measures pulling tension?
  • What transmission voltages are used?
  • What tool is used to lift a load?
  • In safety procedures, what does the acronym STAR stand for?
  • What signaling means you should go to the yard?
  • Which of the following best describes a typical color code for gas piping used in residential systems?
  • Which of the following is NOT a sign of a natural gas leak?
  • What should you do if MSA alarms trigger?
  • What tool is NOT used around energized conductors?
  • Which knot prevents rope from sliding through a basket?
  • Where should wheel chocks be placed?
  • After isolating a section of gas piping, what is the proper verification to confirm the valve is fully closed?
  • What is the purpose of odorization in natural gas distribution?
  • What oil level is considered hazardous?
  • What is the minimum working voltage for Class 0 gloves?
  • Why is proper labeling of shutoffs critical during gas work?
  • After responders arrive on the scene, what should you do?
  • What is a hand swivel used for?
  • What is a C-Fault?
  • Why is good housekeeping important in gas work zones?
  • What is the purpose of a vent hood or vent cap on a gas regulator?
  • Are you allowed to work in a hole with a C-Fault?
  • Which accessory is used for long pulls with sharp bends?
  • In a transformer, if voltage increases, current decreases.
  • How far must a propane tank be kept from an opening hole?
  • Which statement accurately describes customer service connections in a gas system?
  • Class 0 gloves are rated for a maximum working voltage up to which value?
  • What is the purpose of a bump test in gas detector calibration?
  • In cable management, which statement best describes the function of a fair leader?
  • What is gas migration and how can it be prevented around buildings?
  • The 2.50 or 3.0-3.5 Kellum grip is associated with which?
  • During cable pulling, what is the purpose of wearing leather gear?
  • When performing leak checks, what is a reliable sign that a joint or fitting is leaking?
  • What behavior around gas meters helps reduce ignition risk during maintenance?
  • When should lubricant be applied during cable installation?
  • When is it appropriate to use soap solution to test for leaks?
  • Which of the following voltages is NOT listed as a primary distribution voltage used by Con Edison?
  • Which voltage is NOT considered distribution voltage?
  • Why is it important to document all field changes to piping after repairs?
  • In a transformer, when the secondary voltage rises, the secondary current tends to
  • Which statement about atmospheric testing is correct?
  • Which action should be taken when a gas detection alarm sounds?
  • Which component protects the cable from abrasion at the duct edge?
  • What steps should be taken before performing excavation near underground gas lines?
  • What is the recommended response if you detect a gas leak indoors?
  • For a 4-inch duct, the mandrel maximum should be which?
  • Why is a soap solution used to check for leaks, and what indicates a leak?
  • What is the recommended practice for restoring service after a gas repair?
  • After evacuating indoors when you suspect a gas leak, what should you do while waiting for responders?
  • What is a key reason gas safety training remains a requirement for field crews?
  • What are the primary distribution voltage levels?
  • Which of the following is one of the six required points in a job briefing?
  • Which statement is true about endorsements for driving a cable truck?
  • How often must safety harnesses be inspected?
  • What does Signal 2 mean?
  • Which device is commonly used to apply force to lift heavy objects with mechanical advantage?
  • Which statement best describes the PPE required for gas leak response?
  • What does a dynamometer measure in cable pulling operations?
  • From where should the steel line exit the duct?
  • Why is it important to prevent backflow in the gas service?
  • Rubber glove testing interval?
  • What unit measures power?
  • What is backflow in the context of gas systems?
  • How often should gas detectors be calibrated in field operations?
  • How should you identify and operate a gas shutoff valve safely?
  • What activates the winch on a cable truck?
  • In gas safety, what is the purpose of an assigned backup or standby person?
  • Which hand signal is used to lower a load on a crane or boom?
  • What voltage would you read if you cross phase two hot legs on the secondary?
  • Which cartridge color is associated with asbestos safety in this program?
  • Which action is NOT a recommended response to a gas leak in a confined space?
  • Which statement best describes Signal 4?
  • Which of the following is a hazard associated with gas leaks near ignition sources?
  • Which step is associated with sealing a cable?
  • Before re-opening service after repairs, which action is required?
  • What action should you take if a regulator shows signs of frost buildup during operation?
  • Why is it important to keep upwind from a gas leak?
  • Which CH4 level is within the acceptable limit?
  • Are primary cables found in service boxes?
  • Which ladder material is non-conductive and suitable for live-conductor work?
  • Before entering a structure atmospheric testing must be conducted. Which option best reflects this requirement?
  • Power is measured in which unit?
  • Which of the following is NOT a listed factor in a job briefing?
  • What is the maximum size of a mandrel for a 4-in duct?
  • What is the impact of freezing weather on gas regulators?
  • If oil is found in a hole, what is the recommended action?
  • In the event of a gas leak in an outdoor manhole, what is the recommended action?
  • Why must leaks be re-tested after completing repairs?
  • If current is stepped up in a transformer, what happens to voltage?
  • Which PPE protects the face from splashes?
  • How can you safely verify that a gas line is depressurized before starting work?
  • Which of the following is included in the six required points of a job briefing?
  • Arc proofing is designed to do what?
  • Which method is recommended for confirming a suspected gas leak in the field?
  • Before performing any work on a depressurized gas line, which steps should you complete?
  • When must rubber gloves be inspected?
  • What are common indicators that a gas line valve or joint may be failing?
  • What is the correct response if you observe a hiss or frost near a gas line in a manhole?
  • What class gloves are rated for 1,000 volts working?
  • Which statement best describes the meaning of Signal 2?
  • Which material protects the duct or casting from the steel line?
  • What is the purpose of a gas purge after repairs?
  • Which statement correctly defines a gas main and a gas service line?
  • Which four-step process is described by the safety acronym STAR?
  • What is the acceptable carbon monoxide reading?
  • What is the purpose of keeping a clear area around gas meters during maintenance?
  • Which device should be placed against a vehicle wheel to prevent movement?
  • What are the three types of distribution systems?
  • Where are secondary ducts located?
  • Which statement best describes a key difference between natural gas and propane in terms of detection and hazards?
  • What is the explosive range of natural gas?
  • What is the difference between a leak test and an operational test?
  • How should you shut off gas at the meter in an emergency?
  • What is a basket used for?
  • What does color coding of gas piping indicate about the service?
  • What is the purpose of ventilation during gas work in enclosed spaces?
  • What is the acceptable oxygen range in a manhole?
  • What respirator cartridges are used for asbestos?
  • When performing gas work in confined spaces, what is a critical hazard to monitor for?
  • What does Signal 4 mean?
  • If the MSA alarms while you are inside a structure, what must you do?
  • STAR is an acronym used in safety procedures. What does it stand for?
  • What should be included in the ongoing safety documentation after maintenance work?
  • What should be done to maintain safe installation around electrical equipment?
  • Which safety practice best supports leak detection in a gas work zone?
  • When must atmospheric testing be performed?
  • What is the standard secondary voltage?
  • What is the acceptable atmospheric oxygen concentration range?
  • Where are primary cables located?
  • What increases the strength of a cable pull?
  • If you observe frost or condensation around a gas regulator or joint, what does this commonly indicate?
  • In lifting operations, which item is used to control a swinging load?
  • How must asbestos waste be bagged?
  • What is the proper ladder angle for safe setup?
  • In a bucket lift scenario, when should lubrication be applied to the cable?
  • Which voltage level is defined as high voltage?
  • Which of the following describes the proper handling of asbestos waste bags?
  • What device is used to detect gas leaks in the field?
  • What is the purpose of a fair leader?
  • Why is a hot work permit required when performing tasks near gas lines?
  • What specifically protects a gas cylinder during storage?
  • Which pair is directly proportional according to Ohm's Law?
  • What is the purpose of tracer tape or markings on buried gas lines?
  • What does Signal 8 mean?
  • Why is ongoing gas safety training important for utility workers?
  • What is the purpose of pressure testing a gas line after installation?
  • What is a D-Fault?
  • What percentage of the LEL must combustible gas remain below?
  • Which of the following is an acceptable condition for entry into a structure?
  • Which hand signal is used to lower a load?
  • Which signal requires contacting the office for instructions?
  • Which is a correct sequence of steps when you suspect a gas leak that is not immediately dangerous?
  • When storing gas cylinders, which practice should be followed?
  • Which statement is true regarding rubber gloves and their inspection and testing?
  • Which condition must be met when using soap solution to test for leaks?
  • What is the natural gas explosive range in air?
  • Where should gas piping be installed in relation to electrical equipment to minimize hazards?
  • What is the maximum allowable level of carbon monoxide (CO) in air?
  • Endorsement required to drive a cable truck
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