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indiabix - HGE Flashcards

1
Q

What is geotechnical engineering?

A

Geotechnical engineering is a branch of civil engineering that deals with the behavior of earth materials and their interaction with structures.

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2
Q

True or False: Geotechnical engineering only concerns soil.

A

False

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3
Q

Fill in the blank: The primary goal of geotechnical engineering is to ensure __________ stability.

A

structural

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4
Q

What is soil mechanics?

A

Soil mechanics is the study of the physical and mechanical behavior of soils.

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5
Q

Which test is commonly used to determine the shear strength of soil?

A

Cohesion test

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6
Q

What does the term ‘bearing capacity’ refer to in geotechnical engineering?

A

Bearing capacity refers to the ability of soil to support the loads applied to the ground.

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7
Q

Multiple Choice: Which of the following is NOT a type of soil?

A

Granite

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8
Q

What is the significance of the water table in geotechnical engineering?

A

The water table affects soil strength and stability.

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9
Q

True or False: Compaction improves the strength of soil.

A

True

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10
Q

What is a soil profile?

A

A soil profile is a vertical section of the soil that shows the different layers and their characteristics.

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11
Q

Fill in the blank: The __________ test is used to measure the density of soil.

A

sand cone

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12
Q

What is consolidation in the context of soil?

A

Consolidation is the process by which soil decreases in volume under pressure.

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13
Q

Multiple Choice: Which material is commonly used for soil stabilization?

A

Cement

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14
Q

What is the difference between cohesive and non-cohesive soils?

A

Cohesive soils have particles that stick together, while non-cohesive soils do not.

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15
Q

True or False: The Atterberg limits are used to classify the plasticity of soils.

A

True

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16
Q

What is the purpose of a geotechnical investigation?

A

To assess subsurface conditions and properties of soil and rock.

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17
Q

Fill in the blank: __________ is the study of the movement of water through soil.

A

Hydraulics

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18
Q

What is the role of geosynthetics in geotechnical engineering?

A

Geosynthetics are used for reinforcement, drainage, and separation in soil applications.

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19
Q

Multiple Choice: Which factor does NOT affect soil compaction?

A

Soil color

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20
Q

What is slope stability analysis?

A

Slope stability analysis evaluates the potential for landslides and the stability of slopes.

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21
Q

True or False: Liquefaction can occur during an earthquake.

A

True

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22
Q

What is a retaining wall?

A

A retaining wall is a structure designed to hold back soil and prevent erosion.

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23
Q

Fill in the blank: The __________ method is used for estimating the settlement of foundations.

A

elastic

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24
Q

What does the term ‘factor of safety’ mean in geotechnical engineering?

A

The factor of safety is a measure of the reliability of a design, indicating how much stronger a system is than it needs to be.

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25
Multiple Choice: Which of the following is a common foundation type in geotechnical engineering?
Shallow foundation
26
What is the significance of effective stress in soil mechanics?
Effective stress is crucial for understanding the strength and behavior of saturated soils.
27
What is hydraulics?
Hydraulics is the branch of science and engineering that deals with the mechanical properties of liquids.
28
True or False: Hydraulics is only used in heavy machinery.
False
29
What principle does hydraulics primarily rely on?
Pascal's principle, which states that pressure applied to a confined fluid is transmitted undiminished in all directions.
30
Fill in the blank: The unit of pressure in the SI system is _____?
Pascal (Pa)
31
What is the formula for calculating hydraulic pressure?
Pressure (P) = Force (F) / Area (A)
32
Which hydraulic component is used to store energy in a hydraulic system?
Accumulator
33
What is the purpose of a hydraulic pump?
To convert mechanical energy into hydraulic energy by moving fluid through the system.
34
Multiple Choice: Which of the following is NOT a type of hydraulic pump? A) Gear pump B) Piston pump C) Electric pump D) Vane pump
C) Electric pump
35
What is the role of hydraulic cylinders?
To convert hydraulic energy back into mechanical energy to perform work.
36
True or False: Hydraulic fluids are always water-based.
False
37
What is the main advantage of using hydraulics?
Hydraulics can generate high forces with relatively small components.
38
Fill in the blank: The hydraulic system's efficiency is primarily determined by its _____?
Seal integrity
39
What is the purpose of a hydraulic filter?
To remove contaminants from the hydraulic fluid to protect components.
40
Multiple Choice: Which of the following is a common hydraulic fluid? A) Oil B) Water C) Air D) All of the above
A) Oil
41
What does the term 'hydraulic circuit' refer to?
A system of interconnected components that use hydraulic fluid to transmit power.
42
True or False: Hydraulic systems can only operate in a linear motion.
False
43
What is a hydraulic actuator?
A device that converts hydraulic energy into mechanical motion.
44
Fill in the blank: The term _____ refers to the ability of a hydraulic fluid to resist flow.
Viscosity
45
What is the function of a hydraulic valve?
To control the flow and direction of the hydraulic fluid.
46
Multiple Choice: Which of the following devices uses hydraulics? A) Car brakes B) Airplane wings C) Electric fans D) All of the above
A) Car brakes
47
What is the main disadvantage of hydraulic systems?
They can leak fluid, leading to loss of efficiency and potential environmental hazards.
48
True or False: Hydraulics can be used in both open and closed systems.
True
49
What are the two main types of hydraulic systems?
Open loop and closed loop systems.
50
Fill in the blank: The device that converts hydraulic energy into rotational motion is called a _____?
Hydraulic motor
51
What is the primary function of hydraulic hoses?
To transport hydraulic fluid between components.
52
Multiple Choice: Which of the following should NOT be used as hydraulic fluid? A) Water B) Motor oil C) Diesel fuel D) Hydraulic oil
A) Water
53
What does 'hydraulic fracturing' refer to?
A method used to extract oil or gas by injecting high-pressure fluid into rock formations.
54
What is hydraulics?
Hydraulics is the branch of science and engineering that deals with the mechanical properties of liquids.
55
True or False: Hydraulics is only used in heavy machinery.
False
56
What principle does hydraulics primarily rely on?
Pascal's principle, which states that pressure applied to a confined fluid is transmitted undiminished in all directions.
57
Fill in the blank: The unit of pressure in the SI system is _____?
Pascal (Pa)
58
What is the formula for calculating hydraulic pressure?
Pressure (P) = Force (F) / Area (A)
59
Which hydraulic component is used to store energy in a hydraulic system?
Accumulator
60
What is the purpose of a hydraulic pump?
To convert mechanical energy into hydraulic energy by moving fluid through the system.
61
Multiple Choice: Which of the following is NOT a type of hydraulic pump? A) Gear pump B) Piston pump C) Electric pump D) Vane pump
C) Electric pump
62
What is the role of hydraulic cylinders?
To convert hydraulic energy back into mechanical energy to perform work.
63
True or False: Hydraulic fluids are always water-based.
False
64
What is the main advantage of using hydraulics?
Hydraulics can generate high forces with relatively small components.
65
Fill in the blank: The hydraulic system's efficiency is primarily determined by its _____?
Seal integrity
66
What is the purpose of a hydraulic filter?
To remove contaminants from the hydraulic fluid to protect components.
67
Multiple Choice: Which of the following is a common hydraulic fluid? A) Oil B) Water C) Air D) All of the above
A) Oil
68
What does the term 'hydraulic circuit' refer to?
A system of interconnected components that use hydraulic fluid to transmit power.
69
True or False: Hydraulic systems can only operate in a linear motion.
False
70
What is a hydraulic actuator?
A device that converts hydraulic energy into mechanical motion.
71
Fill in the blank: The term _____ refers to the ability of a hydraulic fluid to resist flow.
Viscosity
72
What is the function of a hydraulic valve?
To control the flow and direction of the hydraulic fluid.
73
Multiple Choice: Which of the following devices uses hydraulics? A) Car brakes B) Airplane wings C) Electric fans D) All of the above
A) Car brakes
74
What is the main disadvantage of hydraulic systems?
They can leak fluid, leading to loss of efficiency and potential environmental hazards.
75
True or False: Hydraulics can be used in both open and closed systems.
True
76
What are the two main types of hydraulic systems?
Open loop and closed loop systems.
77
Fill in the blank: The device that converts hydraulic energy into rotational motion is called a _____?
Hydraulic motor
78
What is the primary function of hydraulic hoses?
To transport hydraulic fluid between components.
79
Multiple Choice: Which of the following should NOT be used as hydraulic fluid? A) Water B) Motor oil C) Diesel fuel D) Hydraulic oil
A) Water
80
What does 'hydraulic fracturing' refer to?
A method used to extract oil or gas by injecting high-pressure fluid into rock formations.

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