In thermocouples which of the following pairs is commonly used ?

Related Mcqs:

1. Thermocouples are mainly used for the measurement of_____________?

   A. temperature B. resistance C. eddy currents D. coupling co-efficient...

2. Commonly used conducting materials are_____________?

   A. copper B. aluminium C. both (A) and (B) D. copper and silver E. platinum and gold...

3. ___________ is most commonly used for making magnetic recording tape?

   A. Silver nitrate B. Ferric oxide C. Small particles of iron D. Silicon-iron...

4. Which of the following is the poorest conductor of electricity ?

   A. Carbon B. Steel C. Silver D. Aluminium...

5. Which of the following materials does not have covalent bonds ?

   A. Organic polymers B. Silicon C. Metals...

6. Which of the following are non-conductors of electricity?

   A. Non-metal solids except carbon B. Air and most other gases C. Pure water and liquids in general except mercury D. All of the above...

7. Carbon bearings are used under which of the following conditions ?

   A. Where lubrication is difficult or im-possible B. Where corrosive chemical action exists C. Where high temperature exists D. All of the above...

8. Which of the following materials is the best conductor of electricity ?

   A. Tungsten B. Aluminium C. Copper D. Carbon...

9. Spark plug makes use of which of the following materials for insulation ?

   A. Porcelain B. Slate C. Asbestos D. Glass...

10. For a hole which of the following statements is incorrect ?

    A. Holes can exist in certain semiconductors only B. Holes can exist in any material including conductors C. Holes may constitute an electric current D. Holes can be considered as a net positive charge...