# G.K. Practice Test: Question Set - 01

**1. Which of the following parameter will be more for 16 gauge copper wire in comparison to 14 gauge copper wire?**

- (A) Cost

- (B) Strength

- (C) Resistance

- (D) Weight

**2. The length of wire having resistance of 1 ohm/m in a heater rated at 1000 W and 250 V will be**

- (A) 250 m

- (B) 125 m

- (C) 62.5 m

- (D) 500 m

**3. Power dissipated in a pure capacitor is**

- (A) Minimum

- (B) Maximum

- (C) Infinite

- (D) Zero

**4. The size of the feeder is determined primarily by**

- (A) The current
it is required to carry

- (B) The
percentage variation of voltage in the feeder

- (C) The
voltage across the feeder

- (D) The distance
over which the transmission is made

**5. Non-conductors whose polarization is caused by an electric field are known as**

- (A) Dielectric

- (B) Super-conductors

- (C) Semi-conductors

- (D) Insulators

**6. If the diameter of a conductor is double, then its resistance will be reduced to**

- (A) Half

- (B) One-fourth

- (C) One-eight

- (D) One-sixteenth

**7. One of difficulties encountered with super-conductors is**

- (A) The
materials become highly magnetic

- (B) Strength is
reduced

- (C) Resistance
is increased

- (D) Maintenance
of low temperature

**8. The inductance of a coil can be increased by**

- (A) Decreasing
number of turns

- (B) Increasing
core length

- (C) Using core
material of high relative permeability

- (D) All of the
above

**9. The resistance of a lamp rated at 240 V and 60 watts equal to**

- (A) 960 ohms

- (B) 120 ohms

- (C) 240 ohms

- (D) 480 ohms

**10. Two resistances of 100 ohms and 0 ohm are connected in parallel. The overall resistance will be**

- (A) 100 ohms

- (B) 50 ohms

- (C) Zero ohm

- (D) Any one of
the above

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