CSLB Class B General Contractor's License - Building's Exam Core Trades
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
1. B) When the home has an increased demand in am- When do you upgrade an
perage electrical service panel?
A) When current circuits
don't have grounding
B) When the home has an
increased demand in am-
perage
C) When upgrading from
single pole to two-pole
breakers
D) When changing from
fluorescent lighting to LED
lighting
2. C) In round columns Where are spiral rebar ties
used?
A) In curved walls
B) In grade beams
C) In round columns
D) In spiral staircases
3. 1/2" What is the minimum size
anchor bolt used to an-
chor sill plates to a foun-
dation?
4. D) All of the above. Required reinforcement
bar splicing length or lap
length is a function of:
, CSLB Class B General Contractor's License - Building's Exam Core Trades
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
A) Diameter of the rein-
forced bar
B) Stress in the reinforced
bar at the cross section of
splicing.
C) Bond-strength be-
tween the reinforcing bar
and the concrete.
D) All of the above.
5. Class I What class of formwork
is used for temporary or
(Class I - used for temporary or for light loadsClass II light loads?
- used for structures that will encounter heavy loads)
6. A) Higher cured strength. Compacting placed con-
crete is advisable because
of:
A) Higher cured strength.
B) Higher compaction.
C) Less water content.
D) Less risk of voids.
7. D) Careful grading What would be the easiest
way to avoid puddling un-
der a slab?
A) Drainage ditches
B) Drainage pipes
C) A gravel and sand base
D) Careful grading
, CSLB Class B General Contractor's License - Building's Exam Core Trades
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
8. Joints designed to separate one pour from another. Construction joints are:
9. 150 lb/cu. ft. The average deadload of
dry concrete, including re-
inforcement, is:
10. No. 10 AWG What is the smallest size
THW copper conductor
that can be used on a
30-amp branch circuit?
11. +/- 2 inches The normal tolerance for
the location of bends and
ends of reinforcing bar is:
12. 3 1/2" What is the minimum re-
quired thickness for a
(Although most concrete slabs are 4", according to slab?
code, the minimum permissible thickness for the slab
is 3 ½".)
13. D) Be attached to the ceiling framing members by When installing recessed
bolts, screws, rivets, or clips lay-in type lights in sus-
pended ceilings, what
When installing lay-in type lights in suspended ceil- methods should be used
ings, they need to be securely attached to the ceiling to attach them to the ceil-
frame using mechanical methods. This can be done ing framing members, as
with bolts, screws, rivets, or clips. However, if using per the NEC?
clips to support the lights, make sure they are specifi-
cally designed for this purpose and approved for use A) Be supported indepen-
in suspended ceiling assemblies. This requirement is dently of the ceiling grid
B) Not be attached to the
, CSLB Class B General Contractor's License - Building's Exam Core Trades
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
stated in Section 410.36(B) of the California Electrical ceiling framing members
Code. C) Be attached to the
building support framing
members
D) Be attached to the ceil-
ing framing members by
bolts, screws, rivets, or
clips
14. C) Being less expensive. A mix with a higher per-
centage of rock has the
advantage of:
A) Higher strength.
B) Being lighter.
C) Being less expensive.
D) Higher resistance to
abrasion.
15. A) Primary windings, secondary windings, and a core What are the three basic
parts to a simple trans-
former?
A) Primary windings, sec-
ondary windings, and a
core
B) Fuse, breaker, and
core
C) Pillar, fuse, and core
D) Copper wire, steel wire
and breaker
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
1. B) When the home has an increased demand in am- When do you upgrade an
perage electrical service panel?
A) When current circuits
don't have grounding
B) When the home has an
increased demand in am-
perage
C) When upgrading from
single pole to two-pole
breakers
D) When changing from
fluorescent lighting to LED
lighting
2. C) In round columns Where are spiral rebar ties
used?
A) In curved walls
B) In grade beams
C) In round columns
D) In spiral staircases
3. 1/2" What is the minimum size
anchor bolt used to an-
chor sill plates to a foun-
dation?
4. D) All of the above. Required reinforcement
bar splicing length or lap
length is a function of:
, CSLB Class B General Contractor's License - Building's Exam Core Trades
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
A) Diameter of the rein-
forced bar
B) Stress in the reinforced
bar at the cross section of
splicing.
C) Bond-strength be-
tween the reinforcing bar
and the concrete.
D) All of the above.
5. Class I What class of formwork
is used for temporary or
(Class I - used for temporary or for light loadsClass II light loads?
- used for structures that will encounter heavy loads)
6. A) Higher cured strength. Compacting placed con-
crete is advisable because
of:
A) Higher cured strength.
B) Higher compaction.
C) Less water content.
D) Less risk of voids.
7. D) Careful grading What would be the easiest
way to avoid puddling un-
der a slab?
A) Drainage ditches
B) Drainage pipes
C) A gravel and sand base
D) Careful grading
, CSLB Class B General Contractor's License - Building's Exam Core Trades
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
8. Joints designed to separate one pour from another. Construction joints are:
9. 150 lb/cu. ft. The average deadload of
dry concrete, including re-
inforcement, is:
10. No. 10 AWG What is the smallest size
THW copper conductor
that can be used on a
30-amp branch circuit?
11. +/- 2 inches The normal tolerance for
the location of bends and
ends of reinforcing bar is:
12. 3 1/2" What is the minimum re-
quired thickness for a
(Although most concrete slabs are 4", according to slab?
code, the minimum permissible thickness for the slab
is 3 ½".)
13. D) Be attached to the ceiling framing members by When installing recessed
bolts, screws, rivets, or clips lay-in type lights in sus-
pended ceilings, what
When installing lay-in type lights in suspended ceil- methods should be used
ings, they need to be securely attached to the ceiling to attach them to the ceil-
frame using mechanical methods. This can be done ing framing members, as
with bolts, screws, rivets, or clips. However, if using per the NEC?
clips to support the lights, make sure they are specifi-
cally designed for this purpose and approved for use A) Be supported indepen-
in suspended ceiling assemblies. This requirement is dently of the ceiling grid
B) Not be attached to the
, CSLB Class B General Contractor's License - Building's Exam Core Trades
CSLB Class B General Contractor's License - Building's Exam: Core Trades
(Part 1)
Study online at https://quizlet.com/_e6sn9m
stated in Section 410.36(B) of the California Electrical ceiling framing members
Code. C) Be attached to the
building support framing
members
D) Be attached to the ceil-
ing framing members by
bolts, screws, rivets, or
clips
14. C) Being less expensive. A mix with a higher per-
centage of rock has the
advantage of:
A) Higher strength.
B) Being lighter.
C) Being less expensive.
D) Higher resistance to
abrasion.
15. A) Primary windings, secondary windings, and a core What are the three basic
parts to a simple trans-
former?
A) Primary windings, sec-
ondary windings, and a
core
B) Fuse, breaker, and
core
C) Pillar, fuse, and core
D) Copper wire, steel wire
and breaker
