ITI ELECTRICIAN EXAM QUESTIONS

1.The ratio of voltage and electric current in a closed circuit
a. remains constant
b. varies
c. increases
d. falls

2.The capacity of a battery is expressed in
 a. amperes
b. amperes-hour
c. watts
d. watt-hour

 3. Out of the following which is not a poor conductor ?
 a. Cast iron
b. Copper
c. Carbon
d. Tungsten

4. The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one
branch is 18 ohms, what is the resistance of the other ?
(a) 18 Q
(b) 36 Q

(c) 48 Q
(d) 64 Q

5. All of the following are equivalent to watt except
(a) (amperes) ohm
(b) joules/sec.
(c) amperes x volts
(d) amperes/volt

6. The rating of a fuse wire is always expressed in
(a) ampere-hours
(b) ampere-volts
(c) kWh
(d) amperes

7. Which of the following statement is true?
(a) A galvanometer with low resistance in parallel is a voltmeter
(b) A galvanometer with high resis¬tance in parallel is a voltmeter
(c) A galvanometer with low resistance in series is an ammeter
(d) A galvanometer with high resis¬tance in series is an ammeter

8. What will be energy used by the battery if the battery has to drive 6.28 x 1018 electrons with
potential difference of 20 V across the terminal ?
(a) 5 joules
(b) 10 joules
(c) 15 joules
(d) 20 joules

9. Resistance of a tungsten lamp as applied voltage increases
(a) decreases
(b) increases
(c) remains same
(d) none of the above

10. Whether circuit may be AC. or D.C. one, following is most effective in reducing the magnitude of the
current.
(a) Reactor
(b) Capacitor
(c) Inductor
(d) Resistor
Ans: d