Objective Questions on Cell & Batteries for Electrician Trade
| Sr. No. | Questions with options |
| 1 | Which device converts sunlight into electrical energy?
(a) Photo voltaic cell (b) Liquid crystal diode (c) Light emitting diode (d) Light dependent resistor Ans – (a) |
| 2 | Which law secondary cell works?
(a) Lenz’s law (b) Joule’s law (c) Faradays laws of electrolysis (d) Faradays law of electromagnetic induction Ans – (c) |
| 3 | What is the formula to calculate the Mass deposited during electrolysis?
(a) M= it gm (b) M= zit gm (c) M= it/z gm (d) M=z./it gm Ans- (b) |
| 4 | How the capacity of batteries is specified?
(a) Volt (b) Watt (c) Volt Ampere (d) Ampere hour Ans- (d) |
| 5 | What is the name of defect that bending of plates in secondary cells?
(a) Buckling (b) Local action (c) Partial short (d) Hard sulphation Ans – (a) |
| 6 | What is the unit of electric charge?
(a) Volt (b) Watt (c) Ampere (d) Coulomb Ans –(d) |
| 7 | What is the output voltage of lithium cell?
(a) 1.2 V (b) 1.5 V (c) 1.8 V (d) 2.5 V Ans –(d) |
| 8 | What is the method of charging if the battery is to be charged for short duration at higher rate?
(a) Initial charge (b) Boost charge (c) Trickle charge (d) Freshening charge Ans – (b) |
| 9 | Which electrolyte used in Carbon Zinc dry cells?
(a) Dilute sulphuric acid (b) Ammonium chloride (c) Potassium hydroxide (d) Concentrated hydrochloric acid Ans – (b) |
| 10 | Which effect causes by passing electric current in liquids?
(a) Heating (b) Lighting (c) Magnetic (d) Chemical Ans – (d) |
| 11 | Which material is used to make negative plates in lead acid battery?
(a) Lead dioxide (b) Sponge lead (c) Lead peroxide (d) Lead sulphate Ans –(b) |
| 12 | Which technique is used to control the corrosion of a metal surface?
(a) Anodic protection (b) Cathodic protection (c) Electrolytic protection (d) Electrostatic protection Ans – (b) |
| 13 | Which cell is most often used in digital watches?
(a) Voltaic (b) Lithium (c) Mercury (d) Silver oxide Ans – (c) |
| 14 | What is the effect if one cell is connected with reverse polarity in a parallel combination circuit?
(a) Voltage become zero (b) Become open circuit (c) Will get short circuited (d) No effect will function normally Ans – (c) |
| 15 | What is the function of fine selector switch in battery charger?
(a) Selection of current rating (b) Selection of charging time (c) Selection of voltage range (d) Selection of charging method Ans – (a) |
| 16 | What is the effect on output power with respect to temperature in solar cells?
(a) No effect on change in temperature (b) Increases with increase in temperature (c) Decreases with increase in temperature (d) Decreases with decrease in temperature Ans – (d) |
| 17 | What purpose the hydrometer is used during charging of batter?
(a) Determine the AH capacity (b) Assess the battery voltage level (c) Assess the discharge level of battery (d) Determine the specific gravity of electrolyte Ans – (d) |
| 18 | What is the formula for faraday’s first law of electrolysis?
(a) M= Z/it (b) M= Zit (c) M= it/Z (d) M= Zt/i Ans – (b) |
| 19 | Which is used as an electrolyte in lead acid battery?
(a) Hydrochloric acid (b) Ammonium chloride (c) potassium hydroxide (d) diluted sulphuric acide Ans – (d) |
| Published On – 7th June 2022 | |
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