Q: 12721 The radiant energy having lowest energy is?

  1. 
    gamma rays
  2. 
    UV rays
  3. 
    visible light
  4. 
    Radio waves

Q: 12722 Permissible noise level at Residential area during night time is:

  1. 
    45 dB
  2. 
    55 dB
  3. 
    75 dB
  4. 
    80 dB

Q: 12723 Scurvy is caused due to the deficiency of ___________?

  1. 
    Vitamin A
  2. 
    Vitamin D
  3. 
    Vitamin C
  4. 
    None of these

Q: 12724 Vitamin E reduces the requirement of _________ .

  1. 
    Iron
  2. 
    Zinc
  3. 
    Selenium
  4. 
    Magnesium

Q: 12725 Where would you find a Eustachian Tube?

  1. 
    In the Brain
  2. 
    In the Lung
  3. 
    In the Ear
  4. 
    In Stomach

Q: 12726 Percentage of water in a tomato is__________?

  1. 
    94%
  2. 
    90%
  3. 
    47%
  4. 
    None of these

Q: 12727 Percentage of water in an apple is__________?

  1. 
    84%
  2. 
    90%
  3. 
    66%
  4. 
    None of these

Q: 12728 What percentage of earth';s water supply is fresh water___________?

  1. 
    3%
  2. 
    5%
  3. 
    21%
  4. 
    None of these

Q: 12729 Heavy mechanical complex use a large amount of water for_________?

  1. 
    Cooling
  2. 
    Freezing
  3. 
    Washing
  4. 
    Mixing

Q: 12730 Heat of sun reaches the earth by ___________?

  1. 
    Convection
  2. 
    radiation
  3. 
    Conduction
  4. 
    None of these

Q: 12731 Who has been appointed as special assistant to PM on reconciliation and harmony in Baluchistan?

  1. 
    Hammad Azhar
  2. 
    Shibli Faraz
  3. 
    Nawabzada Shahzain Bugti
  4. 
    Fawad Ch.

Q: 12732 The number of facial bones in a human body ________?

  1. 
    15
  2. 
    14
  3. 
    22
  4. 
    26

Q: 12733 The process by which air flows from one location in the atmosphere to another is called __________?

  1. 
    Convection
  2. 
    Radiation
  3. 
    Conduction
  4. 
    Electromagnetic Induction

Q: 12734 During which process does heat transfer occur because of density differences__________?

  1. 
    Convection
  2. 
    Radiation
  3. 
    Conduction
  4. 
    None of these

Q: 12735 What method of energy transfer requires no medium for transfer?

  1. 
    Radiation
  2. 
    Convection
  3. 
    Conduction
  4. 
    A and B both

Q: 12736 In general, good absorbents of electromagnetic radiation are also good___________?

  1. 
    Radiators
  2. 
    Conductors
  3. 
    Insulators
  4. 
    Semi Conductors

Q: 12737 During which process of energy exchange does cold air displace warmer air?

  1. 
    Convection

Q: 12738 Which of the following arguments for trade barriers offers potential benefits to consumers?

  1. 
    To protect industries from dumping.
  2. 
    To nurture infant industries by protecting them from cheaper imports.

Q: 12739 The S. I. unit of refractive index is _______?

  1. 
    meter

Q: 12740 Soil acidity is corrected by?

  1. 
    Proper irrigation
  2. 
    Adding sodium hydroxide
  3. 
    Liming
  4. 
    Application of fertilizers