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1. Electrical/Electronic Aptitude
1
1. The opposition to the flow of electric current is ……….
2. ………….. is a source of electricity to power a touch light.
3. If the unit for current is Ampere then the unit for charge is ………..
4. A substance which will not allow the flow of electric current to pass through is termed
a/an ……………
5. The capacity to do work is …………
6. If resistance is to current then, …………… is to magnetic flux.
7. An electrical machine that converts mechanical energy to electrical energy is called a
………………
8. ………….. are electrons found in the outer most shell of an atom.
9. Watt is the unit for ………….
10. The ammeter is used to measure ……………
TRUE OR FALSE
Choose either true or false for the following statements. Q11 – Q 30
11. A transformer helps to increase or decrease the power transferred. ___________
12. A capacitor stores energy in its electric field while an inductor stores energy in its
magnetic field.____________
13. The ratio of apparent power to active power is called power factor.__________
14. In a star-connected system, the line current, LI is equal to the phase current, phI
._________
Match the answers in the rectangle to their respective questions from Q1 to Q10.
A. Insulator B. Voltage C. Coulomb D. Valence electrons E. Energy F. Power
G. Generator H. Transformer I. Reluctance J. Current K. Battery
L. Resistance M. Admittance

2. Electrical/Electronic Aptitude
2
15. The speed of an induction motor must not be equal to the synchronous
speed.________
16. Semiconductor diodes can conductor current in both directions.________
17. The condition for ohms law is that the temperature should remain constant._______
18. With an increase in frequency the capacitive reactance of the system or circuit
increases.________
19. The armature of a DC motor is laminated to reduce hysteresis loss._________
20. If the speed of the DC generator is increased, the generated e.m.f will
decrease._______
21. To control light from more than two places the intermediate switch is used._______
22. The output of an OR gate is always LOW(zero) when all inputs are
LOW(zero).____________
23. For a NAND gate when all inputs are HIGH(one) the out is HIGH(one).________
24. The terminals for a Bipolar Junction Transistor (BJT) are the ‘Emitter’, ‘Collector’
and ‘Gate’ . ________
25. The Junction Field Effect Transistor (JFET) is a current controlled device._______
26. A triac is a bidirectional thyristor used to control the power in AC circuits._______
27. The minimum value of anode current required for an SCR to stay in conduction even
when the gate signal is removed is called latching current.___________
28. A transducer receives energy in one form and converts it to another form.
29. The angular displacement between the phases of a 3-phase system is 180o
._________
30. Ammeter is connected with load in parallel._________