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Q&A Forum

1118 questions found

Module 15. Gas turbine engine

An exhaust cone placed aft of the turbine in a jet engine will cause the pressure in the first part of the exhaust duct to

  • increase and the velocity to decrease.
  • decrease and the velocity to increase.
  • increase and the velocity to increase.
Ekio asking:

The type of duct that forms the exhaust cone will determine what happens with the pressure and temperature. I distinguish 2 types of cone and therefore 2 types of conduit:

1 / convergent - divergent
2 / divergent

Module 4. Electronic fundamentals

What power is required for a desynn indicator system?

  • DC.
  • AC 400 Hz.
  • AC 50 Hz.
Shenoy asking:

Synchros are always supplied with AC. Then why this DC?

Module 5. Digital techniques / Electronic instrument systems

2D in decimal is

  • 43.
  • 45.
  • 41.
Edga5251 asking:

2D is hexadecimal number yes? So 2D in decimal 531?

Module 6. Materials & hardware

Fabric rejuvenator

  • penetrates the fabric and restores fungicidal resistance.
  • restores fabric strength and tautness to at least the minimum acceptable level.
  • restores the condition of the dope coatings.
regiboy asking:

Is this correct?

Module 1. Mathematics

A mound of soil is piled up into a cone of base diameter 1.8m and height 0.6 m. What is the volume of soil?

  • 0.5 m^3
  • 1.0 m^3
  • 1.5 m^3
Drewgal asking:

how ? please

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