CEPTAM Model Paper on Electrical for Technician Post
| 1 | The permeability of a material means
(a) Strength of material (b) The conductivity of a magnetic material to the magnetic lines of force (c) Strength of an electromagnet (d) Magnetization remained in an iron bar on withdrawal of magnetizing force |
| 2 | The resistance value of a carbon resistor having Orange, Red, Brown and Golden colour
(a) 32 k ohm±5% (b) 3.2 k ohm±5% (c) 320 k ohm±5% (d) 32 ohm±5% |
| 3 | A fuse should be connected in
(a) Series with neutral conductor (b) Parallel with neutral conductor (c) Parallel with phase conductor (d) Series with phase conductor |
| 4 | MCCB is ____
(a) Moulded case circuit breaker (b) Main case circuit breaker (c) Main control circuit breaker (d) Main current circuit breaker |
| 5 | The colour of wire recommended for earth connection as per BIS code is
(a) Red (b) Green (c) Black (d) Blue |
| 6 | Which gas is produced during charging of a lead-acid battery
(a) Hydrogen (b) Methane (c) Oxygen (d) Carbon dioxide |
| 7 | A 120 Ah capacity battery can deliver a current of 8A for a period of
(a) 20 hrs (b) 15 hrs (c) 12 hrs (d) 8 hrs |
| 8 | A capacitor of capacitance 50 micro farads is charged to a potential difference of 200 volts. Find out energy stored in the condenser?
(a) 1 joule (b) 100 mili joule (c) 10 mili joule (d) 100 joules |
| 9 | Which among the following is the direction of flow of line of force around a bar magnet?
(a) Out of the east pole into the west pole (b) Out of the west pole into the east pole (c) Out of the south pole in to the north pole (d) Out of the north pole into the south pole |
| 10 | The unit of reluctance is
(a) Ampere per cm square (b) Weber per cm square (c) Ampere turns per weber (d) Ampere turns per cm square |
| 11 | Alternating voltages and current are represented by straight line with an arrow to represent the magnitude and direction. This representation is called
(a) Scalar quantity (b) Phasor quantity (c) Alternating quantity (d) RMS quantity |
| 12 | The material used for ‘doping’ to prepare N-type semiconductor is
(a) Indium (b) Gallium (c) Arsenic (d) Silver |
| 13 | The reverse breakdown phenomenon in a zener diode is known as
(a) Avalanche effect (b) Hall effect (c) Tunnel effect (d) Seebeck effect |
| 14 | Maximum number of light points allowed in a 5 A circuit (not exceeding 800W) is
(a) 5 points (b) 10 points (c) 15 points (d) 20 points |
| 15 | The force required to move the pointer in an indicating instruments is
(a) Deflecting force (b) Controlling force (c) Damping Force (d) Air friction damping force |
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