WorksheetsGeração de Energia Elétrica
Total questions: 38
Worksheet time: 19mins
What does the process of "geração de energia elétrica" involve?
Conversion of primary and secondary energy sources into electrical energy.
Direct use of electrical energy from natural sources.
Storage of electrical energy in batteries.
Distribution of electrical energy without transformation.
What is the main function of the "Gerador" in a hydroelectric power plant?
To generate electricity
To control water flow
To support the structure
To filter water
Which component in the hydroelectric power plant is responsible for moving water to the turbine?
Conduíto forçado
Semi-pórtico
Grades
Painéis elétricos
What is the role of "Turbina" in the hydroelectric power plant?
To convert water flow into mechanical energy
To store electricity
To regulate voltage
To provide structural support
What is the volume of concrete used in the construction of Itaipu?
12.7 million m³
10 million m³
15 million m³
8 million m³
The volume of concrete used in Itaipu's construction is enough to build how many football stadiums like Maracanã?
210 stadiums
150 stadiums
100 stadiums
50 stadiums
What is the primary purpose of a dam as described in the text?
To generate electricity
To store drinking water
To hold back water and provide a nominal head of 120 m
To prevent flooding
What is the quantity of conduits mentioned in the document?
15
20
25
30
What is the weight of each conduit?
500 t
883 t
1000 t
750 t
What is the internal diameter of the conduits?
8.5 m
9.5 m
10.5 m
11.5 m
What is the developed length of the conduits?
120.5 m
130.5 m
142.2 m
150.2 m
What is the nominal discharge of the conduits?
600 (m³/s)
650 (m³/s)
690 (m³/s)
700 (m³/s)
What is the maximum discharge capacity of the spillway mentioned in the document?
62,200 m³/s
40,000 m³/s
50,000 m³/s
30,000 m³/s
How many times greater is the spillway's discharge capacity compared to the average flow of the Iguaçu Falls?
40 times
20 times
30 times
50 times
What is the primary function of a hydraulic turbine?
To transform hydraulic energy into mechanical energy
To generate electrical energy directly
To store hydraulic energy
To convert mechanical energy into hydraulic energy
What type of axis can Pelton turbines have?
Vertical or horizontal
Diagonal or circular
Only vertical
Only horizontal
In what type of geographical areas are Pelton turbines most commonly used?
Mountainous countries
Desert regions
Flat plains
Coastal areas
Diagram of a Pelton turbine showing components like water inlet, needle injector, and Pelton wheel.
Water outlet
Needle injector
Pelton wheel
Steam turbine
What is the range of useful falls for which Francis turbines are used?
10 to 100 meters
20 to 400 meters
50 to 500 meters
100 to 600 meters
What is a key characteristic of Francis turbines?
Limited adaptability
High adaptability to different falls
Only used for small falls
Inefficient at high falls
What is the type of turbine mentioned in the document?
Kaplan
Pelton
Francis
Crossflow
What is the nominal unit power of the turbine?
500 MW
715 MW
600 MW
800 MW
What is the design speed in RPM for 50 Hz?
80.5
90.9
92.3
100.1
What is the heaviest indivisible part of the turbine?
Rotor
Spiral case
Suction tube
Distributor
What is the nominal unit flow rate of the turbine?
500 m³/s
600 m³/s
690 m³/s
750 m³/s
What does the graph titled "Tipo de turbina por faixa de operação" represent?
The efficiency of turbines at different temperatures
The operational range of different types of turbines based on flow rate and head
The cost of turbines over time
The environmental impact of turbines
What type of turbines are adapted to low head applications?
Pelton turbines
Francis turbines
Kaplan turbines
Impulse turbines
How many units operate at a frequency of 60 Hz?
10 units
20 units
15 units
25 units
What is the nominal power for 50/60 Hz?
823.6/737.0 MVA
900.0/800.0 MVA
750.0/700.0 MVA
850.0/750.0 MVA
What is the nominal voltage of the generators?
20 kV
18 kV
15 kV
22 kV
What is the moment of inertia (GD2) for the generators?
300,000 t.m²
320,000 t.m²
350,000 t.m²
310,000 t.m²
What is the weight of the heaviest part, the rotor?
1,500 t
1,760 t
1,800 t
1,600 t
What is the main topic of the document?
Types of Solar Panels
Types of Wind Turbines
Types of Hydroelectric Power Plants
Types of Geothermal Plants
What is the installed power range for a Micro Central hydroelectric plant?
P ≤ 0.1 MW
0.1 < P ≤ 1 MW
1 < P ≤ 30 MW
P > 100 MW
Which type of hydroelectric plant has an installed power range of 30 < P ≤ 100 MW?
Micro Central
Mini Central
Média Central
Grande Central
What is the installed power range for a Grande Central hydroelectric plant?
P ≤ 0.1 MW
0.1 < P ≤ 1 MW
1 < P ≤ 30 MW
P > 100 MW
Which type of hydroelectric plant has an installed power range of 1 < P ≤ 30 MW?
Micro Central
Mini Central
Pequena Central (PCH)
Média Central
What is the capacity range of a "pequena central hidrelétrica" (small hydroelectric plant)?
Greater than 5 megawatts and less than or equal to 30 megawatts
Greater than 30 megawatts and less than or equal to 100 megawatts
Greater than 1 megawatt and less than or equal to 5 megawatts
Greater than 50 megawatts and less than or equal to 200 megawatts
