Ventilation Quiz 3

Which is correct procedure when cutting a ventilation opening in a roof?

A. Several small holes distributed over the fire area are better than one large hole.

B. Use preexisting openings only when there is no alternative.

C. Sound the roof to locate structural supports.

D. Return the saw to idle before withdrawing it from a cut.

• a

• b

• c

• d

When making louver cuts, what is used as a fulcrum to make the louvered openings?

A. Ridge pole

B. Decking

C. Roof support

D. Purlin

• A

• B

• C

• D

Which type of ventilation opening is used to stop fire spread in a long, narrow building?

A. Peak

B. Louvered

C. Triangular

D. Trench

• A

• B

• C

• D

Which is the preferred method to cut a ventilation hole in a metal roof?

A. Triangular

B. Peak

C. Trench

D. Louvered

• A

• B

• C

• D

Which is the preferred location to ventilate a basement?

A. The largest existing opening

B. Exterior doors and windows

C. The interior stairwell

D. Any preexisting opening

• A

• B

• C

• D

Which effect is caused by temperature differences inside and outside a building?

A. Stratification

B. Inversion

C. Stack effect

D. Mushrooming

• A

• B

• C

• D

What is the preferred method to ventilate a large building?

A. Existing vertical shafts

B. Multiple roof openings

C. Trench cut

D. Individual ventilation of interior compartments

• A

• B

• C

• D

Which type of ventilation operation is used solely as a defensive tactic?

A. Louver

B. Trench

C. Peak

D. Coffin

• A

• B

• C

• D

59. What is a characteristic of bowstring trusses?

A. Lack of a cockloft or attic space

B. Commonly used in lightweight residential construction

C. Commonly used in fire-resistive construction

D. Prone to sudden collapse in fire conditions

• A

• B

• C

• D

A freestanding wall that extends above the roofline is a __________ wall.

A. parapet

B. pony

C. curtain

D. sleeper

• A

• B

• C

• D