A carbon resistor contains_____________?

Related Mcqs:

1. Carbon electrodes are not used in_______________?

   A. GLS lamps B. electric arc furnace C. dry cells D. cinema projectors...

2. Carbon rods are used in wet and dry cells because_____________?

   A. carbon rod serves as conductor B. carbon can resist the attack of battery acid C. both (A) and (B) D. either (A) or (B)...

3. Carbon resistors are used extensively because they are____________?

   A. easy to make B. compact C. inexpensive D. all of the above reasons...

4. 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...

5. The carbon percentage is least in__________________?

   A. low carbon steel B. wrought iron C. cast iron D. malleable iron...

6. Which of the following materials is preferred for transmitting electrical energy over long distance ?

   A. Copper B. Aluminium C. Steel reinforced copper D. Steel reinforced aluminium...

7. The coils of D.C. motor starter are wound with wire of_______________?

   A. copper B. kanthal C. manganin D. nichrome...

8. A good electric contact material should have all of the following properties except_____________?

   A. high resistivity B. high resistance to corrosion C. good thermal conductivity D. high melting point...

9. The number of atoms per unit cell in B.C.C. structure is_____________?

   A. 1 B. 2 C. 4 D. 8...

10. ___________ has the best damping properties?

    A. Diamond B. High speed steel C. Mild steel D. Cast iron...