Exam (elaborations) CSLB CLASS B GENERAL CONTRACTOR'S LICENSE - BUILDI

CSLB CLASS B GENERAL CONTRACTOR'S
LICENSE - BUILDING'S EXAM: CORE TRADES
(PART 1) EXAM QUESTIONS AND ANSWERS
100% PASS

B) When the home has an increased demand in amperage - CORRECT
ANSWER -When do you upgrade an electrical service panel?


A) When current circuits don't have grounding
B) When the home has an increased demand in amperage
C) When upgrading from single pole to two-pole breakers
D) When changing from fluorescent lighting to LED lighting



C) In round columns - CORRECT ANSWER - Where are spiral rebar ties used?


A) In curved walls
B) In grade beams
C) In round columns
D) In spiral staircases



1/2" - CORRECT ANSWER - What is the minimum size anchor bolt used to anchor sill plates to a
foundation?



D) All of the above. - CORRECT ANSWER -
Required reinforcement bar splicing length or lap length is a function of:


A) Diameter of the reinforced bar
B) Stress in the reinforced bar at the cross section of splicing.
C) Bond-strength between the reinforcing bar and the concrete.
D) All of the above.

,Class I


(Class I - used for temporary or for light loadsClass II -
used for structures that will encounter heavy loads) - CORRECT
ANSWER -What class of formwork is used for temporary or light loads?


A) Higher cured strength. - CORRECT ANSWER - Compacting placed concrete is advisable because of:


A) Higher cured strength.
B) Higher compaction.
C) Less water content.
D) Less risk of voids.



D) Careful grading - CORRECT ANSWER - What would be the easiest way to avoid puddling under a
slab?


A) Drainage ditches
B) Drainage pipes
C) A gravel and sand base
D) Careful grading



Joints designed to separate one pour from another. - CORRECT ANSWER - Construction joints are:



150 lb/cu. ft. - CORRECT ANSWER - The average deadload of dry concrete, including reinforcement,
is:



No. 10 AWG - CORRECT ANSWER -
What is the smallest size THW copper conductor that can be used on a 30-amp branch circuit?


+/- 2 inches - CORRECT ANSWER -
The normal tolerance for the location of bends and ends of reinforcing bar is:


3 1/2"

, (Although most concrete slabs are 4", according to code, the minimum permissible thickness for the sla
b is 3 ½".) - CORRECT ANSWER -What is the minimum required thickness for a slab?


D) Be attached to the ceiling framing members by bolts, screws, rivets, or clips


When installing lay-
in type lights in suspended ceilings, they need to be securely attached to the ceiling frame using mecha
nical methods. This can be done with bolts, screws, rivets, or clips. However, if using clips to support t
he lights, make sure they are specifically designed for this purpose and approved for use in suspended
ceiling assemblies. This requirement is stated in Section 410.36(B) of the California Electrical Code. -
CORRECT ANSWER -When installing recessed lay-
in type lights in suspended ceilings, what methods should be used to attach them to the ceiling framing
members, as per the NEC?


A) Be supported independently of the ceiling grid
B) Not be attached to the ceiling framing members
C) Be attached to the building support framing members
D) Be attached to the ceiling framing members by bolts, screws, rivets, or clips



C) Being less expensive. - CORRECT ANSWER -
A mix with a higher percentage of rock has the advantage of:


A) Higher strength.
B) Being lighter.
C) Being less expensive.
D) Higher resistance to abrasion.


A) Primary windings, secondary windings, and a core - CORRECT
ANSWER -What are the three basic parts to a simple transformer?


A) Primary windings, secondary windings, and a core
B) Fuse, breaker, and core
C) Pillar, fuse, and core