Question 1

The purpose of concrete topping on hollow- core slabs is to

Accepted Answer

A) increase the fire rating of the floor. 
B) structurally integrate the slabs. 
C) increase the sound insulation of the floor. 
D) level the top of slabs. 
E) all of the above. 
A) increase the fire rating of the floor. 
B) structurally integrate the slabs. 
C) increase the sound insulation of the floor. 
D) level the top of slabs. 
E) all of the above.

Question 2

Architectural precast concrete refers to concrete members used in building interiors.

Accepted Answer

A) True 
 B)False

Question 3

The formwork used for a waffle slab has

Accepted Answer

A) a dome profile. 
B) a U- shaped profile. 
C) a Z- shaped profile. 
D) any one of the above. 
E) none of the above. 
A) a dome profile. 
B) a U- shaped profile. 
C) a Z- shaped profile. 
D) any one of the above. 
E) none of the above.

Question 4

Using sketches, explain the commonly used beamless concrete floor systems.

Accepted Answer

Beamless concrete floor systems, also kn

Question 5

Name the factors that affect the fire resistance of reinforced or prestressed concrete members.

Accepted Answer

(i)Thickness of member-the greater the t

Question 6

The strength of concrete used in precast concrete members is generally

Accepted Answer

A) 1 ksi to 2 ksi. 
B) 2 ksi to 3 ksi. 
C) 3 ksi to 4 ksi. 
D) 4 ksi to 5 ksi. 
E) 5 ksi to 6 ksi. 
A) 1 ksi to 2 ksi. 
B) 2 ksi to 3 ksi. 
C) 3 ksi to 4 ksi. 
D) 4 ksi to 5 ksi. 
E) 5 ksi to 6 ksi.

Question 7

Based on structural considerations only, the thickness of the slab in a standard- module one- way joist floor need not exceed

Accepted Answer

A) 4 in. to 5 in. 
B) 3 in. to 3- 1/2 in. 
C) 5 in. to 6 in. 
D) 2 in. to 2- 1/2 in. 
A) 4 in. to 5 in. 
B) 3 in. to 3- 1/2 in. 
C) 5 in. to 6 in. 
D) 2 in. to 2- 1/2 in.

Question 8

In mixed precast construction, precast concrete members are generally used for

Accepted Answer

A) columns. 
B) load- bearing walls. 
C) floors. 
D) shear walls. 
E) all of the above. 
A) columns. 
B) load- bearing walls. 
C) floors. 
D) shear walls. 
E) all of the above.

Question 9

Explain the difference between total precast and a mixed precast construction.

Accepted Answer

Total precast construction refers to a b

Question 10

Sketch the following precast concrete structural members:
a. Hollow- core units
b. Solid planks
c. Double- tee units
d. Inverted- tee beams

Accepted Answer

Certainly! Below are descriptions and ro

Question 11

In a band beam reinforced- concrete floor, the beams are

Accepted Answer

A) located at a spacing of 8 ft to 10 ft on center. 
B) wide and shallow. 
C) narrow and deep. 
D) unnecessary. 
A) located at a spacing of 8 ft to 10 ft on center. 
B) wide and shallow. 
C) narrow and deep. 
D) unnecessary.

Question 12

Using sketches and notes, illustrate the two most commonly used reinforced- concrete floor systems.

Accepted Answer

The two most commonly used reinforced-co

Question 13

What is the difference between a flat plate concrete floor and a flat slab concrete floor?

Accepted Answer

In a flat- plate floor, the slab rests d

Question 14

In a posttensioned elevated concrete floor, prestressing tendons are combined with conventional steel reinforcement.

Accepted Answer

A) True 
 B)False

Question 15

Explain the difference between one- way slab and two- way slab actions.

Accepted Answer

One-way slab and two-way slab actions re

Question 16

Double- tee floors are commonly used

Accepted Answer

A) where spans lie between 40 ft and 50 ft. 
B) where spans are in excess of 50 ft. 
C) in residential occupancies. 
D) where spans lie between 30 ft and 40 ft. 
A) where spans lie between 40 ft and 50 ft. 
B) where spans are in excess of 50 ft. 
C) in residential occupancies. 
D) where spans lie between 30 ft and 40 ft.

Question 17

A standard- module one- way joist floor is constructed using pans that are

Accepted Answer

A) 20 in. wide. 
B) 30 in. wide. 
C) 40 in. wide. 
D) A or B. 
E) B or C. 
A) 20 in. wide. 
B) 30 in. wide. 
C) 40 in. wide. 
D) A or B. 
E) B or C.

Question 18

Indicate which of the following concrete floors are beam- supported floors and which are beamless floors. One- way slab floor
Flat- plate floor Flat slab floor
Two- way slab floor One- way joist floor

Accepted Answer

The answer of Indicate which of the following concrete floors...

Question 19

In total precast construction, precast concrete members are generally used for

Accepted Answer

A) columns. 
B) floors. 
C) shear walls. 
D) load- bearing walls. 
E) all of the above. 
A) columns. 
B) floors. 
C) shear walls. 
D) load- bearing walls. 
E) all of the above.

Question 20

A 12- in.- thick hollow- core floor slab will generally span up to approximately

Accepted Answer

A) 20 ft. 
B) 30 ft. 
C) 40 ft. 
D) 25 ft. 
E) none of the above. 
A) 20 ft. 
B) 30 ft. 
C) 40 ft. 
D) 25 ft. 
E) none of the above.

Exam 23: Concrete Construction-II Site-Cast and Precast Concrete Framing Systems

The purpose of concrete topping on hollow- core slabs is to

Architectural precast concrete refers to concrete members used in building interiors.

The formwork used for a waffle slab has

Using sketches, explain the commonly used beamless concrete floor systems.

Name the factors that affect the fire resistance of reinforced or prestressed concrete members.

The strength of concrete used in precast concrete members is generally

Based on structural considerations only, the thickness of the slab in a standard- module one- way joist floor need not exceed

In mixed precast construction, precast concrete members are generally used for

Explain the difference between total precast and a mixed precast construction.

Sketch the following precast concrete structural members: a. Hollow- core units b. Solid planks c. Double- tee units d. Inverted- tee beams

In a band beam reinforced- concrete floor, the beams are

Using sketches and notes, illustrate the two most commonly used reinforced- concrete floor systems.

What is the difference between a flat plate concrete floor and a flat slab concrete floor?

In a posttensioned elevated concrete floor, prestressing tendons are combined with conventional steel reinforcement.

Explain the difference between one- way slab and two- way slab actions.

Double- tee floors are commonly used

A standard- module one- way joist floor is constructed using pans that are

Indicate which of the following concrete floors are beam- supported floors and which are beamless floors. One- way slab floor Flat- plate floor Flat slab floor Two- way slab floor One- way joist floor

In total precast construction, precast concrete members are generally used for

A 12- in.- thick hollow- core floor slab will generally span up to approximately

An Overview of the Building Delivery Process How Buildings Come Into Being

Design and Constructions Regulations

Loads on Buildings

Load Resistance the Structural Properties of Materials

Properties of the Envelope-I Thermal Properties

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Fire and Smoke-Related Properties

Acoustical Properties of Materials

Principles of Joints and Sealants Expansion and Contraction Control

Principles of Sustainable Construction

Soils and Excavations

Below-Grade Construction Foundation Systems and Basements

Materials for Wood Construction-I Lumber

Materials for Wood Construction-Ii Engineered Wood Products, Fasteners, and Connectors

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Structural Insulated Panel Construction

Material Steel and Steel Components

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