CEO Exam

Question 1

Controlling the unwanted noise in the living environment.

Answer 1

Acoustic of buildings

Question 2

What are the four acoustic properties of construction materials?

Answer 2

Steel
Concrete
Fiberglass
Rubber and plastic

Question 3

Enumerate the eight construction techniques for noise control in buildings

Answer 3

• Construction of walls
• Use of cavity walls in the partition
• By increasing thickness and mass of the wall
• Use of acoustic blankets in airspace
• Use of different panels
• Construction in size of windows
• Increasing thickness of the glass
• Installation of double glazed windows

Question 4

Why is good acoustic control of building necessary?

Answer 4

To live peaceful and quality life

Question 5

What are the two site selections and planning for better acoustic control in the structures?

Answer 5

Maintaining distance from the source of noise

Building orientation

Question 6

It is the best material for sound installation It has a high density which makes it noise resistant.

Answer 6

Steel

Question 7

It is sound insulating material

Answer 7

Fiberglass

Question 8

It is more rigid and has a high density

Answer 8

Concrete

Question 9

It also known as _____ _____.It increases sound attenuation when placed in the air space. It can attenuate noise up to _____

Answer 9

Isolation blanket and 10dB

Question 10

Explain conventional placement

Answer 10

A method of using your concrete to repair damaged concrete the repair must be able to make an integral band with the base concrete. A low which and a high percentage of course aggregate is needed in the repair concrete to minimize shrinkage cracking.

Question 11

Crack repair with the use of external prestressing strands or bars apply a ________

Answer 11

Compressive force

Question 12

What are factors that require consideration of planning a concrete repair?

Answer 12

Application condition
geometry
Temperature
Moisture
Location
service condition
Service life
Chemical attack
traffic
down time
appearance

Question 13

What are the types of causes and mechanism of confit damage

Answer 13

Chemical
mechanical
biological
physical factors

Question 14

What type of damage in concrete structure is the heat changes in temperature moisture wind and etc?

Answer 14

Physical factors

Question 15

What is planning and design of concrete repair?

Answer 15

It is a process of figuring out how to fix damaged concrete, choosing the right materials, and deciding the best method to make the repair last.

Question 16

Cement paste, sulfate attack and reinforcing steel. What type of factors that cause concrete damage?

Answer 16

Chemical factors

Question 17

Multi-story building tall enough to require the use of a system of mechanical vertical transportation such as elevators.

Answer 17

High-rise building

Question 18

What country did the first high-rise building were constructed?

Answer 18

United States in the 1880’s

Question 19

The use of steel structural frames and glass exterior sheathing.

Answer 19

High-rise building

Question 20

Vertical transport in a high rise is the elevator.

Answer 20

Principal

Question 21

The _________ of high rise building supports very heavy loads.

Answer 21

Foundation

Question 22

The _________ of high rise building supports very heavy loads.

Answer 22

Foundation

Question 23

Tall buildings are similar to those of low rise building

Answer 23

Plumbing systems

Question 24

High-rise building are also very similar to low rise systems

Answer 24

Electrical systems

Question 25

what is an environmental control system?

Answer 25

The atmosphere system and long span building must handle the considerable heat and other generations from population densities of less than one square meter per person. Air must be moved earlier rapidly through the population zone to maintain an acceptable air change rate.

Question 26

What are the various processes of ground improvement that are available?

Answer 26

To increase strength
Reduce compressibility
Reduce permeability
Improve groundwater conditions