Chapter 10

Question 1

In what shape is a concrete beam most frequently cast

Answer 1

Tee

Question 2

Which type of reinforcing is provided in addition to steel reinforcing bard to avoid possible buckling of a column

Answer 2

Lateral

Question 3

What is the nonbearing exterior wall attached to the building with a rigid steel frame called

Answer 3

Curtain wall

Question 4

What is a ledge that projects from the column and supports the beam

Answer 4

Corbel

Question 5

Which of the following came make the overhaul operations very uncomfortable

Answer 5

Heat sink effect

Question 6

What is used to check the moisture content of concrete

Answer 6

Slump test

Question 7

After what time period is normal design strength of concrete reached

Answer 7

28 days

Question 8

What effect does the super plasticizer have when added to a concrete mixture

Answer 8

Makes the concrete flow more freely

Question 9

Which type of stresses are created in the concrete when the steel reinforcement is prestressed

Answer 9

Compressive

Question 10

Which of the following is not see as an advantage to using precast concrete

Answer 10

The size of what can be precast is unlimited

Question 11

Which type of force is applied to the reinforcing steel during the posttensioning process

Answer 11

Tensile

Question 12

Which of the following is an acceptable reason to cut reinforcing steel during fire fighting operations

Answer 12

Rescue trapped victims

Question 13

What is the primary function of placing reinforcing steel in concrete

Answer 13

Resist tensile forces

Question 14

What is the fine aggregate used in concrete

Answer 14

Sand

Question 15

How are the reinforced wall panels constructed in tilt up construction

Answer 15

Onsite in horizontal casting beds

Question 16

In which application would concrete NOT be reinforced with steel

Answer 16

Sidewalks

Question 17

Which of the following statement is correct

Answer 17

Prestressed concrete systems may be somewhat more vulnerable to failure than ordinary reinforced concrete

Question 18

Which type of concrete frame consists of a concrete slab supported by concrete columns

Answer 18

Flat slab concrete frame

Question 19

In what way is concrete strong

Answer 19

Compression

Question 20

In the simplest of precast designs, how are the precast slabs connected

Answer 20

Rest on a column

Question 21

Which of the following provides a thicker slab while eliminating the weight of unnecessary concrete in the bottom half of the slab

Answer 21

Waffle construction

Question 22

What is the chemical process involved in the hardening of concrete

Answer 22

Hydration

Question 23

What is excess will result in the concrete spalling on fire conditions

Answer 23

Water

Question 24

Which comparison statement between structural lightweight concrete and ordinary concrete is not correct

Answer 24

Structural lightweight concrete has a lower density than ordinary concrete

Question 25

What is the ideal temperature range that concrete should be kept within during curing

Answer 25

50-70 degrees Fahrenheit | 10-21 degrees Celsius

Question 26

Which type of deflection is often seen when the steel strands are released during the pretensioning process

Answer 26

Upward

Question 27

Which type of concrete slab is used for short spans up to approximately 30 feet

Answer 27

Solid

Question 28

Which type of frame is good for use in buildings with light floor loads

Answer 28

Slab and Beam framing

Question 29

What are the stirrups designed to resist in ordinary reinforcing of concrete

Answer 29

Diagonal tension

Question 30

Which type of assessment must be made and constantly updated as the operation continues

Answer 30

360 degree