Tag: science & technology

Questions Related to science & technology

which is the largest moon in the solar system?
general knowledge science & technology

  1. IO

  2. callisto

  3. Ganymede

  4. titan

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Correct Option: C

which is the third largest planet?
general knowledge science & technology

  1. NEPTUNE

  2. URANUS

  3. JUPITER

  4. EARTH

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Correct Option: B

The armature of a dc motor iis laminated
general knowledge science & technology

  1. to reduce hysteresis loss

  2. to reduce eddy current loss

  3. to reduce the cost of core

  4. to reduce the mass of the armature

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Correct Option: B

Interpole winding in a dc generator is proportional to
general knowledge science & technology

  1. a large number of turns of thin wire

  2. a small number of turns of thick wire

  3. a lage number of turns of thick wire

  4. a small number of turns of thin wire

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Correct Option: B

The armature mmf waveform in a dc machine is
general knowledge science & technology

  1. pulsating

  2. rectangular

  3. triangular

  4. sinusoidal

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Correct Option: C

The critical resistance of dc generator is the resistance of

general knowledge science & technology

  1. field

  2. brush

  3. armature

  4. compensating pole

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Correct Option: A

Consider the following scenario : 'A cat accidentally drops from the seventh floor of a high rise. It does not face any casualty, infact it is perfectly alright, because of it's well padded paws. But the same cat fell down from the third floor some days later and suffered a few bruises.' Please select the correct reason from the below options : [Hint:- Try fluid mechanics]
general knowledge science & technology

  1. There was too much wind the second day for the cat to settle down

  2. The cat was fatigued out due to repetitve accidents

  3. The cat tried a different way of landing and failed

  4. The air friction in the first case helped the cat

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Correct Option: D

General emf and current are in the same direction in case of

general knowledge science & technology

  1. series motors

  2. shuntmotors

  3. dc generators

  4. all of these

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Correct Option: C

The swinging of the leather ball in cricket can be explained through -
general knowledge science & technology

  1. Poissons Ratio

  2. Navier-Stokes

  3. Bernoulli's equation

  4. Euler equations

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Correct Option: C

In case starting resistance of a series motor is short circuited, the motor will
general knowledge science & technology

  1. burn out

  2. not start

  3. run at very high speed

  4. run with excessive speed

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Correct Option: C