Practice Test: Question Set - 02
1. A mica capacitor and a ceramic capacitor both have the same physical dimensions. Which will have more value of capacitance?
- (A) Ceramic capacitor
- (B) Mica capacitor
- (C) Both will have identical value of capacitance
- (D) It depends on applied voltage
2. The unit of volume charge density is
- (A) Coulomb/meter
- (B) Coulomb2/meter
- (C) Coulomb/meter3
- (D) Coulomb/meter4
3. The total deficiency or excess of electrons in a body is known as
- (A) Current
- (B) Voltage
- (C) Potential gradient
- (D) Charge
4. In a cable capacitor, voltage gradient is maximum at the surface of the
- (A) Earth
- (B) Conduction
- (C) Sheath
- (D) Insulator
5. The capacitance between two plates increases with
- (A) Shorter plate area and higher applied voltage
- (B) Shorter plate area and shorter distance between
them
- (C) Larger plate area, longer distance between plates
and higher applied voltage
- (D) Larger plate area and shorter distance between
plates
6. For a good 0.05 uF capacitor ohmmeter reading should
- (A) Show low resistance momentarily and back off to a
very high resistance
- (B) Show high resistance momentarily and then a very
low resistance
- (C) Go quickly to 50 ohm approximately and remain there
- (D) Not move at all
7. Dielectric strength of medium
- (A) Increases with rise in temperature
- (B) Increases with moisture content
- (C) Is same for all insulating materials
- (D) None of the above
8. Which of the following capacitor is preferred in case of single phase motor?
- (A) Mica capacitor
- (B) Paper capacitor
- (C) Electrolytic capacitor
- (D) Ceramic capacitor
9. The electric field at a point situated at a distance d from straight charged conductor is
- (A) Proportional to d
- (B) Inversely proportional to d
- (C) Inversely proportional to d2
- (D) None of the above
10. An electrolytic capacitor can be used for
- (A) D.C. only
- (B) A.C. only
- (C) Both D.C. as well as A.C.
- (D) None of these
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