1|Page
NASCLA Exam Questions With 100% Correct!!
lightweight, 5/8" that is up to 15% lighter than
standard Type X wallboard - .....ANSWER ...✔✔
Gysum Panel- Firecode Type X
What is an advantage of veneer plasters? -
.....ANSWER ...✔✔ Veneer plaster is more durable
Least expensive stud for gypsum framing? - .....ANSWER
...✔✔ 25 gauge steel studs
18 GAUGE TIES are used for what in gypsum framing? -
.....ANSWER ...✔✔ TO ATTACH CHANNEL TO
FURRED AREAS
Why USE SHORTER SHANK NAILS in framing with
Gypsum? - .....ANSWER ...✔✔ TO PREVENT NAIL
POPS
,2|Page
With gypsum wall framing, how should studs be
installed? - .....ANSWER ...✔✔ ALL STUDS SAME
DIRECTION
How should resilient channels be installed with respect to
distance from floor and ceiling? - .....ANSWER ...✔✔
INSTALL RESILIENT CHANNELS 2" FROM FLOOR, 6"
FROM CEILING
How should furring channels be installed? - .....ANSWER
...✔✔ PERPENDICULAR TO JOIST
What is the SPACING OF FURRING CHANNEL
FASTENERS? - .....ANSWER ...✔✔ 24" OC
Temperature of hanging drywall? - .....ANSWER
...✔✔ TEMPERATURE TO HANG DRYWALL SHOULD
BE MORE THAN 50 DEGREES, ACCLIMATED FOR 24
HOURS AT 55-70 DEGREES
What is the width of a gypsum control joint? -
.....ANSWER ...✔✔ GYPSUM CONTROL JOINT
WIDTH IS 1/2"
,3|Page
Job conditions of finishing veneer plaster? - .....ANSWER
...✔✔ GREATER THAN 55 DEGREES, HUMIDITY 20-
50 %
THE SPACING OF FASTENERS FOR CORNER BEAD
MUST NOT BE MORE THAN.... - .....ANSWER ...✔✔
12" OC
Storage Temperature of Gyspum... - .....ANSWER
...✔✔ Above 55 degrees, products start to
deteriorate at 125 degrees
When stacking gyspum, how far should the base of the
stack be from the wall? - .....ANSWER ...✔✔ 4"-6"
FROM WALL
When can a door be used as a wall control joint? -
.....ANSWER ...✔✔ THE DOOR MAY BE USED AS A
WALL CONTROL JOINT IF THE JOINT GOES FROM THE
CORNER UP
Some purposes of roofing underlayment? - .....ANSWER
...✔✔ It protects roof sheathing before the roof is
applied, and it gives added weather protection
, 4|Page
What is used to keep water from getting inside the
roof? - .....ANSWER ...✔✔ Ice Dams
The membrane of an ice dam should be HOW MANY
inches inside the wall line? - .....ANSWER ...✔✔ 24
inches inside the wall line
What is the term for flashing built into the vertical
surface and bent down over the base flashing -
.....ANSWER ...✔✔ counter flashing
What is the flashing built right up on the chimney and
butts the chimney and the shingles? - .....ANSWER
...✔✔ Step flashing
How much exposure should be given when roll roofing? -
.....ANSWER ...✔✔ 17 inches
How many pounds per square are required of vapor
barriers on built up roofs? - .....ANSWER ...✔✔ 45 to
80 lbs per square
NASCLA Exam Questions With 100% Correct!!
lightweight, 5/8" that is up to 15% lighter than
standard Type X wallboard - .....ANSWER ...✔✔
Gysum Panel- Firecode Type X
What is an advantage of veneer plasters? -
.....ANSWER ...✔✔ Veneer plaster is more durable
Least expensive stud for gypsum framing? - .....ANSWER
...✔✔ 25 gauge steel studs
18 GAUGE TIES are used for what in gypsum framing? -
.....ANSWER ...✔✔ TO ATTACH CHANNEL TO
FURRED AREAS
Why USE SHORTER SHANK NAILS in framing with
Gypsum? - .....ANSWER ...✔✔ TO PREVENT NAIL
POPS
,2|Page
With gypsum wall framing, how should studs be
installed? - .....ANSWER ...✔✔ ALL STUDS SAME
DIRECTION
How should resilient channels be installed with respect to
distance from floor and ceiling? - .....ANSWER ...✔✔
INSTALL RESILIENT CHANNELS 2" FROM FLOOR, 6"
FROM CEILING
How should furring channels be installed? - .....ANSWER
...✔✔ PERPENDICULAR TO JOIST
What is the SPACING OF FURRING CHANNEL
FASTENERS? - .....ANSWER ...✔✔ 24" OC
Temperature of hanging drywall? - .....ANSWER
...✔✔ TEMPERATURE TO HANG DRYWALL SHOULD
BE MORE THAN 50 DEGREES, ACCLIMATED FOR 24
HOURS AT 55-70 DEGREES
What is the width of a gypsum control joint? -
.....ANSWER ...✔✔ GYPSUM CONTROL JOINT
WIDTH IS 1/2"
,3|Page
Job conditions of finishing veneer plaster? - .....ANSWER
...✔✔ GREATER THAN 55 DEGREES, HUMIDITY 20-
50 %
THE SPACING OF FASTENERS FOR CORNER BEAD
MUST NOT BE MORE THAN.... - .....ANSWER ...✔✔
12" OC
Storage Temperature of Gyspum... - .....ANSWER
...✔✔ Above 55 degrees, products start to
deteriorate at 125 degrees
When stacking gyspum, how far should the base of the
stack be from the wall? - .....ANSWER ...✔✔ 4"-6"
FROM WALL
When can a door be used as a wall control joint? -
.....ANSWER ...✔✔ THE DOOR MAY BE USED AS A
WALL CONTROL JOINT IF THE JOINT GOES FROM THE
CORNER UP
Some purposes of roofing underlayment? - .....ANSWER
...✔✔ It protects roof sheathing before the roof is
applied, and it gives added weather protection
, 4|Page
What is used to keep water from getting inside the
roof? - .....ANSWER ...✔✔ Ice Dams
The membrane of an ice dam should be HOW MANY
inches inside the wall line? - .....ANSWER ...✔✔ 24
inches inside the wall line
What is the term for flashing built into the vertical
surface and bent down over the base flashing -
.....ANSWER ...✔✔ counter flashing
What is the flashing built right up on the chimney and
butts the chimney and the shingles? - .....ANSWER
...✔✔ Step flashing
How much exposure should be given when roll roofing? -
.....ANSWER ...✔✔ 17 inches
How many pounds per square are required of vapor
barriers on built up roofs? - .....ANSWER ...✔✔ 45 to
80 lbs per square
