GAS TECHNICIAN CERTIFICATION EXAM PRACTICE QUESTIONS COMPLETE WITH 100% VERIFIED ANSWERS

GAS TECHNICIAN CERTIFICATION EXAM PRACTICE QUESTIONS COMPLETE WITH 100% VERIFIED ANSWERS 1. One watt equals ______ Btu A) 2.41 B) 4.31 C) 3.41 D) 5.21 Correct Answer: C) 3.41 Explanation: One watt is equivalent to 3.41 British Thermal Units per hour. This is a standard conversion factor used in heating and cooling calculations. ________________________________________ 2. Electrical potential is measured in: A) Amperes B) Ohms C) Volts D) Watts Correct Answer: C) Volts Explanation: Voltage is the measure of electrical potential difference between two points in a circuit. Amperes measure current, ohms measure resistance, and watts measure power. ________________________________________ 3. What is a British Thermal Unit (BTU)? A) The amount of heat to raise 1 gallon of water by 1°F B) The amount of heat to raise 1 pound of water by 1°F C) The amount of heat to raise 1 kilogram of water by 1°C D) The amount of heat to raise 1 ounce of water by 1°F Correct Answer: B) The amount of heat to raise 1 pound of water by 1°F Explanation: A BTU is defined as the quantity of heat required to raise the temperature of one pound of water by one degree Fahrenheit at sea level. ________________________________________ 4. A technician who installs and activates an appliance or replaces a component shall: A) Only ensure it is in safe working order B) Only instruct the user in safe operation C) Ensure compliance with Gas Code, safe working order, and instruct the user D) Submit paperwork to the local authority Correct Answer: C) Ensure compliance with Gas Code, safe working order, and instruct the user Explanation: Gas technicians have a legal and professional obligation to verify code compliance, safety, and proper user instruction for all installations. ________________________________________ 5. What is the maximum fine that can be given to an individual found guilty of an offence under the act? A) $10,000 B) $25,000 C) $50,000 D) $100,000 **Correct Answer: C) $50,000** Explanation: Under most gas safety acts, individuals face maximum fines of $50,000 for violations, while corporations may face higher penalties. ________________________________________ 6. Electrical current flows through a capacitor to increase starting torque on a motor. A) True B) False Correct Answer: A) True Explanation: Capacitors are used in motor circuits to create a phase shift, providing additional starting torque to help the motor overcome initial inertia. ________________________________________ 7. What is the first action when the relief valve on a propane container is leaking? A) Call the fire department B) Shut off the fuel C) Replace the valve immediately D) Ventilate the area Correct Answer: B) Shut off the fuel Explanation: The immediate priority is to stop the flow of propane by shutting off the fuel supply to prevent potential fire or explosion hazards. ________________________________________ 8. Swing joints and unions shall not be used where piping is: A) Exposed B) Concealed C) Accessible D) Outdoors Correct Answer: B) Concealed Explanation: Swing joints and unions are prohibited in concealed locations because leaks cannot be detected or repaired without damaging finished surfaces. ________________________________________ 9. What is the maximum allowed spacing for supports on NPS 3 horizontal piping? A) 6' B) 8' C) 10' D) 12' Correct Answer: C) 10' Explanation: For NPS 3 (3-inch nominal pipe size) horizontal piping, the maximum support spacing is 10 feet according to gas code requirements. ________________________________________ 10. A stationary device used to divert the flow of flue gases is called a: A) Damper B) Baffle C) Venturi D) Orifice