JATC Step 1A Written Exam Questions
and Correct Verified Answers
List 9 common building materials answer - 1) Wood
2) Masonry
3) Metals
4) Reinforced concrete
5) Gypsum
6) Lath and plaster
7) Glass/fiberglass
8) Plastic
9) Composite materials
List the 5 building construction types answer - 1) Fire resistive
2) Noncombustible or limited combustible
3) Ordinary construction
4) Heavy timber/mill construction
5) Wood or stick frame
Define Type 1 (Fire resistive) construction type answer - - Provides the highest level of
protection from fire development and spread as well as collapse.
- All structural members are composed of noncombustible or limited-combustible materials.
- Structural components resist fire for a period of 3-4 hours.
, Firefighting concerns for Type 1 (Fire resistive) construction type answer - - Compartments can
retain heat contributing to the potential for rapid fire development.
- Roofs are extremely difficult to penetrate for ventilation
- Windows may be nonoperating, causing them to be difficult to open for ventilation.
Define Type 2 (Noncombustible or limited combustible) construction type answer - - Composed
of materials that will not contribute to fire development or spread.
- Fire resistance rating is half of type 1; 1-2 hours.
- Type 2 used when fire risk is expected to be low, or when fire suppression and detection
systems are designed to meet fuel load of contents.
Firefighting concerns with Type 2 (Noncombustible or limited combustible) construction type
answer - - More prone to collapse than type 1 due to lighter-weight materials with lower fire-
resistance ratings.
- Metal roof decking may be covered with combustible layers of foam insulation and felt paper,
causing the metal deck to melt from combustible materials underneath.
- Combustible features such as balconies and facades can be included on exterior
Define Type 3 (Ordinary construction) construction type answer - - Requires exterior walls and
structural members be constructed of noncombustible materials.
and Correct Verified Answers
List 9 common building materials answer - 1) Wood
2) Masonry
3) Metals
4) Reinforced concrete
5) Gypsum
6) Lath and plaster
7) Glass/fiberglass
8) Plastic
9) Composite materials
List the 5 building construction types answer - 1) Fire resistive
2) Noncombustible or limited combustible
3) Ordinary construction
4) Heavy timber/mill construction
5) Wood or stick frame
Define Type 1 (Fire resistive) construction type answer - - Provides the highest level of
protection from fire development and spread as well as collapse.
- All structural members are composed of noncombustible or limited-combustible materials.
- Structural components resist fire for a period of 3-4 hours.
, Firefighting concerns for Type 1 (Fire resistive) construction type answer - - Compartments can
retain heat contributing to the potential for rapid fire development.
- Roofs are extremely difficult to penetrate for ventilation
- Windows may be nonoperating, causing them to be difficult to open for ventilation.
Define Type 2 (Noncombustible or limited combustible) construction type answer - - Composed
of materials that will not contribute to fire development or spread.
- Fire resistance rating is half of type 1; 1-2 hours.
- Type 2 used when fire risk is expected to be low, or when fire suppression and detection
systems are designed to meet fuel load of contents.
Firefighting concerns with Type 2 (Noncombustible or limited combustible) construction type
answer - - More prone to collapse than type 1 due to lighter-weight materials with lower fire-
resistance ratings.
- Metal roof decking may be covered with combustible layers of foam insulation and felt paper,
causing the metal deck to melt from combustible materials underneath.
- Combustible features such as balconies and facades can be included on exterior
Define Type 3 (Ordinary construction) construction type answer - - Requires exterior walls and
structural members be constructed of noncombustible materials.
