The two elements that are frequently used for making transistors are :

Related Mcqs:

1. Transistors do not need a warm up period because they have no ?

   A. Plate
   B. Grid
   C. Filament
   D. None of above

   Submitted by: Mansoor Ahmed Suhag

2. Earthquakes occur most frequently at __________?

   A. Plate boundaries
   B. Plate surface
   C. Ocean beds
   D. All of the above

   Submitted by: Rashid Mehmood

3. Which of the following elements is not present abundantly in earth’s crust ?

   A. Silicon
   B. Radium
   C. Aluminum
   D. Carbon

4. Elements are made of _________?

   A. Atoms
   B. Molecules
   C. H2O
   D. Compounds

5. Nuclear radiation is emitted by those elements whose:

   A. molecules are stable
   B. molecules are unstable
   C. nuclei are stable
   D. nuclei are unstable

   Submitted by: Mansoor Ul Haque

6. Which are the only two elements on the periodic table that are liquid at room temperature?

   A. Mercury and Bromine
   B. Carbon and helium
   C. Nitrogen and Hydrogen
   D. Oxygen and Neon

   Submitted by: Ashfaque Ali Khoso

7. Which of the following circuit elements is used to ‘block’ DC in an electronic circuit ?

   A. Resistances
   B. Capacitance
   C. Inductance
   D. Diode

   Submitted by: Malik Asghar Hussain

8. How many elements are in Modern periodic table?

   A. 112
   B. 118
   C. 114
   D. 116

   Submitted by: M.Muzammil

9. Elements which have same number of protons but different number of neutrons are called as _________ ?

   A. Isotopes
   B. Isomers
   C. Allotropes
   D. Allomers

   Submitted by: Rashid Mehmood

10. 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