Washing machine is working on the principle of?

Related Mcqs:

1. A man is standing on a weighing machine in a lift which is moving. The weighing machine will slow MINIMUM reading when, the lift is moving?

   A. Upward with uniform speed
   B. Downward with uniform acceleration
   C. In a free fall due to failure of the lift mechanism
   D. None of these

   Submitted by: Ashfaque Ali Khoso

2. Which gas does a Photocopier machine produce?

   A. Ozone 
   B. carbon dioxide
   C. Sulfur dioxide
   D. None of these

   Submitted by: mubashir ali

3. In an MRI machine, which one of the following is used?

   A. Sound wave
   B. ‘X’-ray
   C. Ultra-sound wave
   D. Magnetic wave

   Submitted by: Malik Asghar Hussain

4. Which one of the following elements the drum of a Photostat machine is made up of: _________?

   A. Aluminium
   B. Selenium
   C. Barium
   D. None of these

   Submitted by: Abid Hussain

5. A photostat machine works on _____________?

   A. electromagnetic image making
   B. magnetic image making
   C. thermal image making
   D. electrostatic image making

   Submitted by: Abid Hussain

6. Who is the inventor of the first magnetic resonance imaging (MRI) machine?

   A. Godfrey Hounsfieldv
   B. Mattias Schleiden
   C. Raymond Damadian
   D. Theodore Schwann

   Submitted by: Malik Aqeel Ahmad

7. The principle used in radar is the same as that of Sonar. In radar we use radio waves ; whereas in sonar we use ?

   A. red waves
   B. Infrared waves
   C. Ultrasonic
   D. super sonic
   E. None of these

8. Persistance of vision is the principle behind?

   A. Camera
   B. Spectroscope
   C. Cinema
   D. Periscope

   Submitted by: Malik Asghar Hussain

9. Uncertainty Principle was given by?

   A. Werner Heisenberg
   B. Farady
   C. John locke
   D. None of these

   Submitted by: fahad mehsud

10. SONAR is based on the principle of___________?

    A. Echo
    B. reverberation
    C. resonance
    D. None of these

    Submitted by: Abid Otho