205/2014

1. Which one of the following is called as valence electron in an atom ?
(ಗಿ) No. of electrons in inner orbit
(B) No. of electrons in N shell
(C) No. of electrons in outermost orbit
(12) No. of electrons in M shell

2. One mega ohm is equal to ohm.
(A} 69 ൫ 13105 (€ 105 (D) 1x10°3

3. Which factor does not depend on resistance വ! the conducter among the following factors ?
(५) Length (18) Material (0) Vollage (D) Temperature

4. Which material has the negative temperature co - efficient among the following ?

{A) Copper 8) Aluminium (€) Tungsten (0) Carbon
5. Theeguivalent resistance of the [031211೧1 ೧17೧1115 thanthe smallest single resistance.
{A) Greater (18) Smaller (C) டிய (D) பன்‌

6. The total value of two resistance 25 () when connected in series and 6 (2 when connected
in parallel. Find the value വ്‌ resistance.

(A) 100,150 (8) 120,130 (©) ೫೧,5೧ (0) 190,60

7. Size of the wires can be measured normally by standard wire gauge. Which instrument
must be used for accurate measurement of wire size ?

(ക) ‏عنس‎ calliper (B) Depth gauge = (©) Fuel gauge (D} Micro meter

8. The solder used for soldering consists of an alloy of tin and lead. What is the combination of
tin and lead of solder used for electrician solder ?

(A) Tin 50%, lead 50% (8). 117 60%, 1680 40%
)© 35%, 1020 65% (ம) 17 90%, 1690 10%

9. What is the use of Fureka wire ?
(A) Rheostat (8) Heating element (C) Earth wire (D) Winding wire

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