CSIA C-DET STUDY EXAMS GUIDE UPDATED QUESTIONS
AND ANSWERS FIRM A+
✔✔National and local codes. In the absence of local codes, the installation should
conform to the national fuel, gas code ANSI/Z223.1 - ✔✔Which codes should the gas
line meet?
✔✔ANSI/Z223.1 - ✔✔Besides national and local codes, what gas code the gas line
adhesive to
✔✔Yes, but with a conversion kit - ✔✔Are natural gas and propane, gas
interchangeable
✔✔3/8 inch gas lines are found in most dryers - ✔✔Typically a one-half-inch gas line is
provided. What must you reduce it to?
✔✔There could be leaks and kinks - ✔✔Why should the flexible gas line connector be
tested
✔✔True - ✔✔True/False. All dryers must be grounded.
✔✔The ground reduce the risk of electric shock by providing a path of least resistance
for electrical current. - ✔✔What does grounding a washer accomplish?
✔✔Ground wire should never be connected to plastic, plumbing lines, gas lines, or hot
water pipes. - ✔✔What should ground wires never be connected to?
✔✔Commercial dryers are often gained into the exhaust duct. It will probably be a long
barrel shaped transition Duck that is joined to each dryer. - ✔✔What are "ganged"
commercial dryers?
✔✔Gang dryer ducts are usually made of galvanized metal and are a larger diameter,
like 8 inches round. - ✔✔What are gained dryer ducks usually made of?
✔✔US-ANSI/Z223.1 or Can/CGBA-B1-49 insulation codes - ✔✔In absence of local
code what should gas dryers lines conform to.
✔✔1/2 inch - ✔✔What is the typical supplied sized gas line.
✔✔1/2 inch to 3/8 inch - ✔✔Gas lines usually need to reduced from _________ to
________
✔✔The gas line - ✔✔After moving a gas dryer what should be tested for gas leaks
, ✔✔National Electrical Codes, ANSI/NFPA (US) or Canadian Electric Code CSA C22.1 -
✔✔In absence of local code what does wiring and grounding need to be in accordance
with?
✔✔Plastic plumbing lines, gas lines, or hot water heaters. - ✔✔Ground wires should
never be connected to
✔✔A compressor and skipper - ✔✔Due to potentially long runs, commercial cleaning
jobs may require what.
✔✔4 inches wide - ✔✔The preferred termination cap should be how wide.
✔✔down - ✔✔Which direction should wall caps be installed?
✔✔12 inches - ✔✔What is the clearance above ground for a wall cap?
✔✔14 sq inches of ventilation area - ✔✔Roof vents or louvered plenum chambers must
contain at least ________ sq inches of insulation area.
✔✔False - ✔✔True/False. A dryer termination can exhaust to common duct or plenums
with a kitchen hood exhaust.
✔✔At least 4 feet of straight metal duct - ✔✔How far apart should each turn in the
exhaust system be?
✔✔10 feet - ✔✔If two turns must be closer than 4 feet apart in the exhaust how much
do you deduct for allowable length?
✔✔90 Degree Elbow - ✔✔Two 45 degree elbows should be treated as a?
✔✔True - ✔✔True/False. Each angle over 45 degrees should be treated as a 90 degree
elbow
✔✔4 inch - ✔✔What is the recommended diameter for rigid metal ducting and
permanent transition ducts?
✔✔Venting from the wall, floor or ceiling to the outside - ✔✔What is permanent venting?
✔✔Venting from the dryer to the wall, floor or ceiling - ✔✔What is transition venting?
✔✔Metal tape - ✔✔What type of tape should the duct joints and sealed with??
AND ANSWERS FIRM A+
✔✔National and local codes. In the absence of local codes, the installation should
conform to the national fuel, gas code ANSI/Z223.1 - ✔✔Which codes should the gas
line meet?
✔✔ANSI/Z223.1 - ✔✔Besides national and local codes, what gas code the gas line
adhesive to
✔✔Yes, but with a conversion kit - ✔✔Are natural gas and propane, gas
interchangeable
✔✔3/8 inch gas lines are found in most dryers - ✔✔Typically a one-half-inch gas line is
provided. What must you reduce it to?
✔✔There could be leaks and kinks - ✔✔Why should the flexible gas line connector be
tested
✔✔True - ✔✔True/False. All dryers must be grounded.
✔✔The ground reduce the risk of electric shock by providing a path of least resistance
for electrical current. - ✔✔What does grounding a washer accomplish?
✔✔Ground wire should never be connected to plastic, plumbing lines, gas lines, or hot
water pipes. - ✔✔What should ground wires never be connected to?
✔✔Commercial dryers are often gained into the exhaust duct. It will probably be a long
barrel shaped transition Duck that is joined to each dryer. - ✔✔What are "ganged"
commercial dryers?
✔✔Gang dryer ducts are usually made of galvanized metal and are a larger diameter,
like 8 inches round. - ✔✔What are gained dryer ducks usually made of?
✔✔US-ANSI/Z223.1 or Can/CGBA-B1-49 insulation codes - ✔✔In absence of local
code what should gas dryers lines conform to.
✔✔1/2 inch - ✔✔What is the typical supplied sized gas line.
✔✔1/2 inch to 3/8 inch - ✔✔Gas lines usually need to reduced from _________ to
________
✔✔The gas line - ✔✔After moving a gas dryer what should be tested for gas leaks
, ✔✔National Electrical Codes, ANSI/NFPA (US) or Canadian Electric Code CSA C22.1 -
✔✔In absence of local code what does wiring and grounding need to be in accordance
with?
✔✔Plastic plumbing lines, gas lines, or hot water heaters. - ✔✔Ground wires should
never be connected to
✔✔A compressor and skipper - ✔✔Due to potentially long runs, commercial cleaning
jobs may require what.
✔✔4 inches wide - ✔✔The preferred termination cap should be how wide.
✔✔down - ✔✔Which direction should wall caps be installed?
✔✔12 inches - ✔✔What is the clearance above ground for a wall cap?
✔✔14 sq inches of ventilation area - ✔✔Roof vents or louvered plenum chambers must
contain at least ________ sq inches of insulation area.
✔✔False - ✔✔True/False. A dryer termination can exhaust to common duct or plenums
with a kitchen hood exhaust.
✔✔At least 4 feet of straight metal duct - ✔✔How far apart should each turn in the
exhaust system be?
✔✔10 feet - ✔✔If two turns must be closer than 4 feet apart in the exhaust how much
do you deduct for allowable length?
✔✔90 Degree Elbow - ✔✔Two 45 degree elbows should be treated as a?
✔✔True - ✔✔True/False. Each angle over 45 degrees should be treated as a 90 degree
elbow
✔✔4 inch - ✔✔What is the recommended diameter for rigid metal ducting and
permanent transition ducts?
✔✔Venting from the wall, floor or ceiling to the outside - ✔✔What is permanent venting?
✔✔Venting from the dryer to the wall, floor or ceiling - ✔✔What is transition venting?
✔✔Metal tape - ✔✔What type of tape should the duct joints and sealed with??
