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CET MCQ questions and answers Polytechnic 2015-2016 (Part3)
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TechTechInfo.com » CET MCQ questions and answers Polytechnic 2015-2016 (Part3)

CET MCQ questions and answers Polytechnic 2015-2016 (Part3)

Add commentMarch 13, 20222 min readby Deepak Sharma
Previous Year Questions and Answers Year 2015-2016 (MCQ with solutions)
Previous Year Questions and Answers Year 2015-2016 (MCQ with solutions)

CET MCQ questions and answers Polytechnic 2015-2016 (Part3)

Previous Year Questions and Answers Year 2015-2016 (MCQ with solutions)

21. The filament of an electric bulb is made of :

  • a) Iron
  • b) tungsten
  • c) Aluminium
  • d) Copper

 

22. In Dynamo, the direction of an electric current is measured by :

  • a) Right-hand rule
  • b) Left-hand rule
  • c) Newton rule
  • d) Joule law

 

23. For high power rating Appliances, a circuit having ______ current is used :

  • a) 5 A
  • b) 10 A
  • c) 15 A
  • d) 20 A

 

24. When we move away from a magnetised wire, the magnitude of magnetic field_________ :

  • a) Increases
  • b) Decreases
  • c) Remains same
  • d) Doubled

 

25. The unit of measuring magnetic field is :

  • a) Web/m²
  • b) Web
  • c) Web m
  • d) Web/Newton

 

26. In Mouses, the colour of Earth wire is :

  • a) Black
  • b) Red
  • c) Blue
  • d) Green

 

27. Which shock is more dangerous?

  • a) A.C.
  • b) D.C.
  • d) Both (a) and (b)
  • d) None of these

 

28. Major component of biogas is :

  • a) Carbon dioxide
  • b) Hydrogen
  • c) Methane
  • d) Nitrogen

 

29. Which of the metal have the least conductivity :

  • a) Lead
  • b) Iron
  • c) Copper
  • d) Aluminium

 

30. Main components of coal are :

  • a) C and O
  • b) H, S and O
  • c) C, H and O
  • d) C, S and O
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