Tag: science & technology

Questions Related to science & technology

How many networks are now included in the IEC Fieldbus standard?
general knowledge science & technology

  1. 1

  2. 3

  3. 8

  4. 15

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Correct Option: C

Prices of these automation products/systems are declining fast:
general knowledge science & technology

  1. PLCs

  2. DCS

  3. SCADA

  4. All of the above

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Correct Option: D

The most measured variable in industrial measurement & control is:
general knowledge science & technology

  1. Temperature

  2. Pressure

  3. Flow

  4. Level

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Correct Option: A

which type of electromagnetic waves has slightly longer wavelengths than redlight
general knowledge science & technology

  1. yellow

  2. infrared

  3. green

  4. ultraviolet

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Correct Option: B

the law of reflection states that when light rays reflect off a surface the angle of incidence
general knowledge science & technology

  1. is one-half the angle of reflection

  2. twice angle of reflection

  3. equals angle of reflection

  4. none of the above

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Correct Option: C

after randomly polarized light passes through a polarizer it is
general knowledge science & technology

  1. totally blocked

  2. randomly polarized

  3. partially polarized

  4. totally polarized

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Correct Option: D

light waves are
general knowledge science & technology

  1. transverse

  2. longitudinal

  3. rotating

  4. circular

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Correct Option: A

light can travel with out any medium
general knowledge science & technology

  1. True

  2. False

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Correct Option: A

if the sun were to disappear right now we woudnt know about it for 8 minutes because it takes 8 minutes
general knowledge science & technology

  1. to operate receiving equipment in dark

  2. for light to travel from sun to earth

  3. for the sun to disappear

  4. all of above

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Correct Option: B

the color that an object appears to be depends on
general knowledge science & technology

  1. angle at which visible light reflects off the object

  2. use of additive than subtractive colors

  3. wavelengths of light that the object reflects

  4. speed with which visible light reaches it

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Correct Option: C