# ITI Electrician 1st year MCQ pdf download in English & Hindi 2021

ITI Electrician 1st year MCQ pdf download in English & Hindi 2021

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1- How many electrons are there in the third cell of the copper atom?
(a) 8
(b) 13
(c) 18
(d) 29

2- Which is the semiconductor material?
(a) Eureka
(b) Ebonite
(c) Manganin
(d) Germanium

3- What is the indication of neon polarity indicator used for checking A.C. supply?
(a) Both electrodes will glow
(b) Only one electrode will glow
(c) Both electrodes will be flickering
(d) One electrode will glow and another will be flickering

4- Calculate the electrical energy in unit consumed by 500W lamp for 5 hours.
(a) 0.5 unit
(b) 1.0 unit
(c) 1.5 unit
(d) 2.5 unit

5- What is the value of hot resistance of a bulb rated as 100W/250V?
(a) 31.25 Ohm
(b) 62.50 Ohm
(c) 312.50 Ohm
(d) 625.00 Ohm

6- Which law states that in closed electric circuit, the applied voltage is equal to the sum of the voltage drops?
(a) Ohm’s law
(b) Laws of resistance
(c) Kirchhoff’s first law
(d) Kirchhoff’s second law

7- Calculate the total power of the circuit of two lamps rated as 200W/240V are connected in series across 240V supply?
(a) 50 W
(b) 100 W
(c) 200W
(d) 400W

8- What is the formula for the equivalent resistance (RT) of the three resistors R1, R2 & R3 are connected in parallel circuit?
(a) RT = R1 + R2 + R3
(b) RT = 1/R1 + 1/R2 + 1/R3
(c) RT = 1/ R1 + R2 + R3
(d) RT = 1/1/R1 + 1/R2 + 1/R3

10- What is the change of resistance value of the conductor as its diameter is doubled?
(a) Increases to two times
(b) Decreases to four times
(c) Decrease to half of the value
(d) No change in value of resistance

14- Calculate the value of unknown resistance ‘RDC’ in the Wheatstone bridge network, If PAB = 500W, QBC = 300W, SAo = 15W, at balanced condition.

(a) 12
(b) 9
(c) 6
(d) 3

15- Which material is having negative temperature co-efficient property?
(a) Mica
(b) Eureka
(c) Copper
(d) Manganin

16- What electrical quantities are related in Ohm’s law?
(a) Current, resistance and power
(b) Current, voltage and resistivity
(c) Current, voltage and resistance
(d) Voltage, resistance and current density

17- Calculate the value of resistance ‘R2’ in the parallel circuit.

(a) 2
(b) 4
(c) 6
(d) 8

18- What is the effect of the parallel circuit with one branch opened?
(a) Current will remain same
(b) Whole circuit will not function
(c) No current will flow in that branch
(d) Voltage drop increase in the opened branch