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G3 Module 3 Review Questions with accurate solutions, Exams of Safety and Fire Engineering

G3 Module 3 Review Questions with accurate solutions

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2024/2025

Available from 07/03/2025

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G3 |! Module |! 3 |! Review |! Questions |!
with |! accurate |! solutions
What |! is |! the |! main |! component |! of |! natural |! gas? |! - |! Correct |! answer |! Methane
What |! is |! the |! chemical |! formula |! for |! methane? |! - |! Correct |! answer |! CH4
How |! does |! dry |! natural |! gas |! differ |! from |! wet |! natural |! gas? |! - |! Correct |! answer |! Wet |!
gas |! contains |! heavier |! hydrocarbons. |! When |! they |! are |! removed |! the |! gas |! is |!
considered |! dry
What |! is |! the |! chemical |! formula |! for |! propane? |! - |! Correct |! answer |! C3H8
What |! substance |! is |! added |! to |! natural |! gas |! and |! propane |! to |! give |! them |! a |! distinctive
|! odour? |! - |! Correct |! answer |! Mercaptopn
Define |! "Specific |! Gravity" |! - |! Correct |! answer |! specific |! gravity |! is |! the |! comparison |!
between |! the |! weight |! of |! the |! volume |! of |! a |! gas(Or |! liquid) |! and |! the |! weight |! of |! and |!
equal |! volume |! of |! air |! (Or |! Water)
What |! is |! the |! specific |! gravity |! of |! natural |! gas? |! - |! Correct |! answer |! 0.60
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G3 |! Module |! 3 |! Review |! Questions |!

with |! accurate |! solutions

What |! is |! the |! main |! component |! of |! natural |! gas? |! - |! Correct |! answer |! ✔Methane What |! is |! the |! chemical |! formula |! for |! methane? |! - |! Correct |! answer |! ✔CH How |! does |! dry |! natural |! gas |! differ |! from |! wet |! natural |! gas? |! - |! Correct |! answer |! ✔Wet |! gas |! contains |! heavier |! hydrocarbons. |! When |! they |! are |! removed |! the |! gas |! is |! considered |! dry What |! is |! the |! chemical |! formula |! for |! propane? |! - |! Correct |! answer |! ✔C3H What |! substance |! is |! added |! to |! natural |! gas |! and |! propane |! to |! give |! them |! a |! distinctive |! odour? |! - |! Correct |! answer |! ✔Mercaptopn Define |! "Specific |! Gravity" |! - |! Correct |! answer |! ✔specific |! gravity |! is |! the |! comparison |! between |! the |! weight |! of |! the |! volume |! of |! a |! gas(Or |! liquid) |! and |! the |! weight |! of |! and |! equal |! volume |! of |! air |! (Or |! Water) What |! is |! the |! specific |! gravity |! of |! natural |! gas? |! - |! Correct |! answer |! ✔0.

What |! is |! the |! specific |! gravity |! of |! propane? |! - |! Correct |! answer |! ✔1. What |! is |! the |! ratio |! of |! expansion |! from |! liquid |! to |! gas |! for |! natural |! gas? |! - |! Correct |! answer |! ✔1: What |! is |! the |! ratio |! of |! expansion |! from |! liquid |! to |! gas |! for |! propane? |! - |! Correct |! answer |! ✔1: What |! is |! the |! boiling |! temperature |! for |! Natural |! gas? |! - |! Correct |! answer |! ✔-258 |! F(- 162c) What |! is |! the |! boiling |! temperature |! for |! propane? |! - |! Correct |! answer |! ✔-44 |! F |! (- 42.2C) Define |! calorific |! value |! - |! Correct |! answer |! ✔The |! energy |! released |! when |! a |! given |! volume |! of |! fuel |! is |! burned What |! is |! the |! calorific |! value |! in |! Btu/FT3 |! for |! natural |! gas |! and |! propane? |! - |! Correct |! answer |! ✔Natural |! Gas: |! 1000 |! Btu/ft Propane: |! 2520 |! Btu/ft What |! are |! the |! limits |! of |! flammability |! for |! natural |! gas? |! - |! Correct |! answer |! ✔4-15 |! % What |! are |! the |! limits |! of |! flammability |! for |! propane? |! - |! Correct |! answer |! ✔2.2 |! - |! 9.5 |! %

What |! does |! incomplete |! combustion |! create? |! - |! Correct |! answer |! ✔Carbon |! Monoxide, |! Soot, |! and |! Aldehydes good |! Carbon |! monoxide? |! - |! Correct |! answer |! ✔C Bad |! carbon |! monoixde? |! - |! Correct |! answer |! ✔C What |! is |! the |! specific |! gravity |! of |! Carbon |! Monoxide? |! - |! Correct |! answer |! ✔0. What |! is |! Carbon |! Monoxide |! Limits |! of |! flammability |!? |! - |! Correct |! answer |! ✔12% |! - |! 74% Symptoms |! of |! Carbon |! Monoxide |! poisoning |!? |! - |! Correct |! answer |! ✔-Headache -Dizziness -Nausea, |! but |! without |! a |! fever What |! is |! propane |! also |! known |! as? |! - |! Correct |! answer |! ✔Liquid |! Petroleum Cylinders |! must |! have? |! - |! Correct |! answer |! ✔Protective |! collar Welder |! seam metal |! base Manufacture |! date

What |! is |! the |! largest |! manufactured |! size |! for |! a |! propane |! cylinder? |! - |! Correct |! answer |! ✔ 1000 |! lbs |! WC Propane |! tanks |! must |! only |! be |! transported... |! - |! Correct |! answer |! ✔Empty What |! is |! the |! purpose |! of |! a |! drill |! gauge? |! - |! Correct |! answer |! ✔To |! measure |! the |! diameter |! of |! the |! drill |! bit What |! should |! a |! technician |! do |! when |! a |! new |! piece |! of |! equipment |! is |! introduced |! for |! use? |! - |! Correct |! answer |! ✔Get |! a |! copy |! of |! the |! user's |! manual |! and |! read |! it |! before |! using |! it Which |! fastener |! is |! used |! to |! attach |! a |! drain |! hose |! to |! a |! fan |! coil |! unit? |! - |! Correct |! answer |! ✔Gear |! clamp How |! should |! an |! electrical |! drill |! be |! disconnected? |! - |! Correct |! answer |! ✔By |! the |! plug |! at |! the |! outlet What |! may |! be |! produced |! if |! a |! natural |! gas |! flame |! is |! adjusted |! to |! produce |! more |! than |! 11.9% |! carbon |! dioxide? |! - |! Correct |! answer |! ✔Carbon |! Monoxide Which |! substance |! passes |! through |! the |! combustion |! zone |! during |! the |! process |! of |! combustion? |! - |! Correct |! answer |! ✔Nitrogen

A |! steam |! boiler |! shall |! conform |! to |! the |! requirments |! of |! which |! organization |! or |! angency? |! - |! Correct |! answer |! ✔The |! technical |! standards |! and |! Safety |! Association |! (TSSA) An |! appliance |! shall |! be |! installed |! with |! a |! minimum |! service |! clearance |! of? |! - |! Correct |! answer |! ✔24" |! inches |! (0.6 |! M) Welded |! gas |! pipe |! must |! comply |! with? |! - |! Correct |! answer |! ✔Technical |! standards |! and |! safety |! act G3 |! technician |! is |! allowed |! to? |! - |! Correct |! answer |! ✔Reactivate |! any |! appliance |! under |! 400,000 |! btuh In |! case |! of |! a |! threat |! to |! public |! safety, |! a |! director |! may |! make |! orders.... |! - |! Correct |! answer |! ✔related |! to |! matters |! that |! haven't |! been |! covered |! in |! the |! act Which |! type |! of |! draft |! is |! produced |! by |! a |! device |! upstream |! of |! the |! combustion |! zone |! of |! an |! appliance? |! - |! Correct |! answer |! ✔Forced |! air |! draft When |! manufacturer's |! instructions |! do |! not |! state |! the |! required |! clearance |! to |! combustibles |! from |! the |! base |! of |! a |! factory |! built |! chimney, |! the |! installer |! may |! refer |! to |! what? |! - |! Correct |! answer |! ✔Ontario |! Building |! code What |! is |! the |! term |! for |! a |! device |! made |! to |! control |! and |! maintain |! within |! the |! acceptable |! limit, |! outlet |! pressure? |! - |! Correct |! answer |! ✔Pressure |! Regulator

a |! notice |! of |! proposal |! to |! deny |! an |! authorization |! will |! inform |! them |! of? |! - |! Correct |! answer |! ✔suspension |! of |! authorization |! due |! to |! failure |! to |! pay What |! is |! the |! term |! for |! a |! device |! installed |! between |! the |! appliance |! and |! vent |! termination |! and |! provides |! a |! mechanical |! draft? |! - |! Correct |! answer |! ✔power |! venter Which |! type |! of |! pilot |! burns |! without |! turndown |! the |! entire |! time |! the |! burner |! is |! in |! service |! even |! if |! the |! main |! burner |! is |! not |! firing? |! - |! Correct |! answer |! ✔Continuous |! pilot Where |! should |! the |! nozzle |! of |! a |! fire |! extinguisher |! be |! pointed? |! - |! Correct |! answer |! ✔At |! the |! base |! of |! the |! fire What |! substance |! is |! inert |! and |! passes |! through |! the |! combustion |! zone |! absorbing |! heat |! during |! the |! combustion |! process? |! - |! Correct |! answer |! ✔Nitrogen A |! Carbide |! tipped |! bit |! is |! used |! to |! drill |! into? |! - |! Correct |! answer |! ✔Concrete Shot |! for |! powder |! activated |! guns |! must |! be |! stored.... |! - |! Correct |! answer |! ✔In |! a |! dry, |! secure |! location One |! boiler |! horsepower |! is? |! - |! Correct |! answer |! ✔Approximately |! 34,000 |! BTUH Propane |! cylinders |! used |! in |! ontario |! must |! be |! manufactured |! and |! approved |! to |! the |! requirments |! established |! by... |! - |! Correct |! answer |! ✔Transport |! Canada