95. SEMANAS 2018. Semana Carol (2 parcial)

Ismael Vázquez
Quiz by Ismael Vázquez, updated more than 1 year ago More Less
Ismael Vázquez
Created by Ismael Vázquez over 3 years ago
Ismael Vázquez
Copied by Ismael Vázquez over 3 years ago
170
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Description

Semana Carol (2 parcial)

Resource summary

Question 1

Question
Q9. One of the main problems of the internal combustion engines is:
Answer
  • A. They are not powerful
  • B. The way to refrigerate them
  • C. They have never been used in aviation
  • D. None is correct

Question 2

Question
Q10. One of the characteristics of star engines is:
Answer
  • A. All the cylinders are exposed to the air
  • B. Because of the A), cooling all the cylinders is easier
  • C. They normally use odd number ( to avoid deadtime in diametrally opposed cylinders)
  • D. All are corrects

Question 3

Question
Q11. Two types of cylinder arrangements are:
Answer
  • A. In line and radial
  • B. In line and two-row
  • C. Only in line
  • D. Only radial

Question 4

Question
Horizontal type of cylinder in line:
Answer
  • A. Are worse of vertical
  • B. Are better of vertical due to reduced length
  • C. Are less compact unit
  • D. They have more vibrations

Question 5

Question
Q13. A great problem of vertical cylinder is:
Answer
  • A. The air that reaches the last cylinder is too hot
  • B. There is not any problem, they are easy to cool
  • C. None is correct
  • D. Vertical cylinders do not need to be refrigerated, they count with a heat radiation system

Question 6

Question
Q14. The four-stroke cycle are:
Answer
  • A. Compression, power, intake and exhaust
  • B. Power, compression, exhaust and intake
  • C. Exhaust, intake, power, compression
  • D. Intake, compression, power and exhaust

Question 7

Question
Q15. A way to aspiration in cylinders is:
Answer
  • A. Normally aspirated, that is called atmospheric
  • B. Supercharged/turbocharged
  • C. A) and B) are corrects
  • D. The only way of aspiration it is the atmospheric one.

Question 8

Question
Q16. About the valve timing in Otto cycle:
Answer
  • A. Valves must open not exactly at TDC and BDC to improve the engine efficiency
  • B. Valves must close not exactly at TDC and BDC to improve the engine efficiency
  • C. Valves must open and close exactly at TDC and BDC to improve the engine efficiency.
  • D. A) and B) are correct

Question 9

Question
Q1. Mark the wrong answer about ice formation on carburetors
Answer
  • A. Trottle / expansion ice: freezing of condensed water vapor of the air at or near the throttle
  • B. Static / adiabatic ice: when the ambient is very cold the carburetor can be frozen
  • C. Fuel / fuel evaporation ice: due to the cooling effect of the evaporation of the fuel
  • D. Impact / atmospheric ice: water in suspension in the atmosphere comes into contact with cold parts

Question 10

Question
Q2. Carburetors work thanks to _______ effect
Answer
  • A. Venturi
  • B. Gravity
  • C. Coriollis
  • D. Magnus

Question 11

Question
Q3. The numeration of cylindres in boxer engines:
Answer
  • A. Right cylinders are odd
  • B. It is established by the manufacturer
  • C. It is the same for all engines
  • D. Left cylinders are even

Question 12

Question
Q4. Valves are made of...
Answer
  • A. Steel
  • B. Flexible material
  • C. Iron
  • D. Composites

Question 13

Question
Q5. Name the different types of piston rings
Answer
  • A. Oil control, compression and oil scraper
  • B. Expansion and oil scraper
  • C. Oil control and oil scraper
  • D. None of them

Question 14

Question
Q6. Types of pistons
Answer
  • A. Trunk pistons
  • B. Slipper pistons
  • C. Hammer pistons
  • D. A and B are correct

Question 15

Question
Q7. What is the effect of holes in pistons?
Answer
  • A. It improves lubrication
  • B. It decreases combustion temperature
  • C. It improves refrigeration
  • D. A and C are correct

Question 16

Question
Q8. Where do we find the sparks?
Answer
  • A. Crankshaft
  • B. Valves
  • C. Cylinder head
  • D. In the cone of the proppeller

Question 17

Question
Q1. How does the injection carburetor work?
Answer
  • A. By pressure
  • B. By gravity
  • C. Both are right
  • D. Both are wrong

Question 18

Question
Q2. Advantages of using carburetors
Answer
  • A. Inertia forces are not suffered
  • B. Poor mixtures are avoided
  • C. A and B are true
  • D. A and B are false

Question 19

Question
Q3. Different kind of injections
Answer
  • A. Direct injection
  • B. Indirect injection
  • C. By pass injection
  • D. A and B are true

Question 20

Question
Q4. Which of the following is NOT a method to distribute the oil?
Answer
  • A. Pressure
  • B. Gravity
  • C. Splash
  • D. Pressure + Splash

Question 21

Question
Q5. Which of the following is a Lubrication System component?
Answer
  • A. Tail
  • B. Flap
  • C. Coolers
  • D. Winglets

Question 22

Question
Q6. Which ones are turbocharger control systems?
Answer
  • A. Absolute pressure controller
  • B. Variable pressure controller
  • C. Dual unit controller
  • D. All are correct

Question 23

Question
Q7. Which is the main advantage of continuous injection?
Answer
  • A. Lower consumption
  • B. Lower pressure
  • C. Lower noises
  • D. Lower number of cylinders

Question 24

Question
Q8. Which are the main injection systems used in aviation alternative engines?
Answer
  • A. Continental and Bendix/Precision
  • B. Diesel and Otto
  • C. A and B are correct
  • D. A and B are false
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