Important Questions from Basic Concepts

1. Arrange the following lamps based on the increasing power rating and energy consumption to provide the same level of Illumination or lighting 

   A. Incandescent Lamp with efficacy of 10 lumens/watt 

   B. Compact fluorescent lamp (CFL) with efficacy of 60 lumens/watt 

   C. Halogen lamp with efficacy of 20 lumens/watt 

   D. Mercury vapour lamp with efficacy of 40 lumens/watt 

   E. Light Emitting diode (LED) lamp with efficacy of 80 lumens/watt 

   Choose the correct answer from the options given below:

   Electrical Engineering

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2. The device in machine which feeds thread in sufficient quantity and tightens loop is :
   Electrical Engineering

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3. Following foods are cooked by the method of broiling :
   
   (a) Papad
   (b) Sweet potato
   (c) Flaky pastry
   (d) Chappaties
   (e) Apple pie
   
   Select the correct option :
   Logical Reasoning

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4. Arrange the steps to set the needle in sewing machine in the correct sequence :
   
   (a) Hold needle in the left hand
   (b) Loosen thumb screw on needle bar
   (c) Tighten clamp
   (d) Insert needle through needle clamp
   (e) Raise needle bar to highest by turning fly wheel
   (f) Keep flat side of needle towards groove
   
   Choose the correct option :
   Electrical Engineering

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5. Who distinguished between value in use and value in exchange and gave the famous example of diamonds and water ?
   General Science

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