AAI Technical Rapid Quiz-57

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Question 1

Match the following

• AI – II – A
  2 – III – C
  3 – I – B
• BI – III – B
  2 –II -C
  3 – I – A
• C1 –II – A
  2 –III – B
  3– I – C
• D1– I – C
  2 – II – B
  3 – III – A

Question 2

Which of the following is not a component of Brayton cycle?

• A Compressor
• B Combustion Chamber
• C Turbine
• D Pump

Question 3

Which coolant is commonly used for fast breeder reactors?

• A Liquid metal (Na (or) Na K)
• B Helium (He)
• C Carbon dioxide
• D All of the mentioned

Question 4

Wet Bulb Depression is equal to ______.(DBT means dry bulb temperature, WBT means wet bulb temperature and DPT means dew point temperature)

• A DBT-WBT
• B WBT-DPT
• C DBT-DPT
• D None of These

Question 5

Design of shafts made of brittle materials is based on ________.

• AGuest’s theory
• BRankine’s theory
• CSt. Venant’s theory
• DVon Mises theory

Question 6

A 3-stage reciprocating compressor has suction pressure of 1 bar delivery pressure of 27 bar. For minimum work of compression, the delivery pressure of 1st stage is

• A14 bar
• B9 bar
• C598bar
• D3bar

Question 7

For laminar flow in a pipe, average velocity is equal to:

• A2 U_max
• BU_max
• C0.5 U_max
• D0.25 U_max

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