Which gas does a Photocopier machine produce?

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. The gas, commonly known as “laughing gas”, is

   A. Carbon Dioxide
   B. Sulfur Dioxide
   C. Nitrous Oxide
   D. Sodium Oxide

3. Which of the gas is not known as green house gas?

   A. Methane
   B. Nitrous oxide
   C. Carbon dioxide
   D. Hydrogen

   Submitted by: Farjan Ahmed Soomro

4. As comets get close to the sun, they start to “melt” and release gas and dust. This gas and dust forms what?

   A. “coma” around the comet’s nucleus and a long tail that points away from the sun
   B. “coma” that points away from the sun and a long tail around the comet’s nucleus
   C. Only “coma” around the comet’s nucleus
   D. Only a long tail that points away from the sun

   Submitted by: Muhammad Abdullah

5. 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

6. Washing machine is working on the principle of?

   A. Photoelectric effect
   B. Electric-magnetic induction
   C. Centrifugation
   D. None of these

   Submitted by: fahad mehsud

7. 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

8. 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

9. 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

10. Only male frog produce croacking sound because _________ ?

    A. Male frog can magnify their voice with the help of sound box.
    B. Male frog have three pair of vocal cord
    C. Female frog have larynx but no vocal cord
    D. Female frog have no larynx

    Submitted by: Rashid Mehmood