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Helium: Quiz

  
  
  
  
  
  

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Question 1: The line was detected by French astronomer Pierre Janssen during a total solar eclipse in ________, India.
MangalagiriHyderabad, IndiaGunturGuntur district

Question 2: [28] In rocketry, helium is used as an ullage medium to displace fuel and oxidizers in storage tanks and to condense hydrogen and oxygen to make ________.
Liquid rocket propellantsRocket engineRocket propellantHypergolic propellant

Question 3: [4] The vast majority of helium was formed by Big Bang ________ one to three minutes after the Big Bang.
Beta decayNuclear fusionAlpha decayNucleosynthesis

Question 4: On March 26, 1895 British chemist Sir William Ramsay isolated helium on Earth by treating the mineral cleveite (a variety of uraninite with at least 10% rare earth elements) with mineral ________.
OxygenAcid–base reactionAcid dissociation constantAcid

Question 5:
Who played Crowd the movie Helium?
Adam Stone
Stephen Arenholz
Cody Scott
J.T. Brooks

Question 6:
Who played Anchor/Miguel Hernandez the movie Helium?
Stephen Arenholz
Erik Rayburn
Stephen Arenholz
J.T. Brooks

Question 7: [88] Helium is used as a shielding gas in ________ processes on materials that are contaminated easily by air.
Shielded metal arc weldingGas tungsten arc weldingArc weldingGas metal arc welding

Question 8:
What role did Erik Rayburn play in the movie Helium?
Anchor/Miguel Hernandez
Erik Rayburn
Balloon Attendent Tom Ayers
Crowd

Question 9:
Who played Crowd the movie Helium?
Erik Rayburn
Stephen Arenholz
J.T. Brooks
J.T. Brooks

Question 10: This radiogenic helium is trapped with natural gas in concentrations up to seven percent by volume, from which it is extracted commercially by a low-temperature separation process called ________.
Fractional distillationBatch distillationContinuous distillationReflux
















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