Electrician theory semester 1 trade test jan2018 questions
The Earth wires made of....
A) Copper B) Iron C) Aluminium D) Galvanized stranded steel
The rating of fuse is always expressed in.....
A) Bolt B) Amperes C) Ampere-volt D) Ampere hours
A fuse is .......
A) Always connected in series with the circuit.
B) Always connected in parallel with the circuit.
C) Normally connected in series with the circuit.
D) Normally connected in parallel with the circuit.
The size of conductor used in power cables depends on......
A) Operating voltage B) Current to be carried C) Power factor D) Type of insulation used
Ohm's law is applied to....
A) Semiconductors B) Electrolytes C Carbon resistors D) All of these
Two wires A and B of the same material and length L and 2L have radius R and 2R respectively. The ratio of their specific resistance will be.....
A) 1:1 B) 1:2. C) 1:4. D) 1:8
Ideal voltage source have....
A) Zero internal resistance B) Low value of current C) Infinite internal resistance D Large value of emf
Kirchhoff's laws are valid for....
A) Linear circuit only. B) Nonlinear circuits only C) Passive time invariant circuits D) Both linear and nonlinear circuits
The unit of impedance is.....
A) Ohms. B) Siemens. C) Mho. D) Henry
The value of peak factor of a sinusoidal waveform is .....
A) Zero B) 1 C) 1.11. D) 1.41
The algebraic sum of incoming current is equal to the sum of outgoing current is the statement of ....
A) Kirchoff's current law B) Ohm's C) Kirchoff's voltage law D) Joule's law
A 100W, 220 bolt lamps takes a current of ....
A) 5/11 A B) 2.2 A C) 0.22 A. D 5/22 A
In a pure inductive A.C. circuit.....
A) Voltage leads the current vector by 90 degree
B) Current leads the voltage vector by 90 degree
C) Voltage legs the current vector by 90 degree
D) Current is in phase with the voltage vector
The Earth wires made of....
A) Copper B) Iron C) Aluminium D) Galvanized stranded steel
The rating of fuse is always expressed in.....
A) Bolt B) Amperes C) Ampere-volt D) Ampere hours
A fuse is .......
A) Always connected in series with the circuit.
B) Always connected in parallel with the circuit.
C) Normally connected in series with the circuit.
D) Normally connected in parallel with the circuit.
The size of conductor used in power cables depends on......
A) Operating voltage B) Current to be carried C) Power factor D) Type of insulation used
Ohm's law is applied to....
A) Semiconductors B) Electrolytes C Carbon resistors D) All of these
Two wires A and B of the same material and length L and 2L have radius R and 2R respectively. The ratio of their specific resistance will be.....
A) 1:1 B) 1:2. C) 1:4. D) 1:8
Ideal voltage source have....
A) Zero internal resistance B) Low value of current C) Infinite internal resistance D Large value of emf
Kirchhoff's laws are valid for....
A) Linear circuit only. B) Nonlinear circuits only C) Passive time invariant circuits D) Both linear and nonlinear circuits
The unit of impedance is.....
A) Ohms. B) Siemens. C) Mho. D) Henry
The value of peak factor of a sinusoidal waveform is .....
A) Zero B) 1 C) 1.11. D) 1.41
The algebraic sum of incoming current is equal to the sum of outgoing current is the statement of ....
A) Kirchoff's current law B) Ohm's C) Kirchoff's voltage law D) Joule's law
A 100W, 220 bolt lamps takes a current of ....
A) 5/11 A B) 2.2 A C) 0.22 A. D 5/22 A
In a pure inductive A.C. circuit.....
A) Voltage leads the current vector by 90 degree
B) Current leads the voltage vector by 90 degree
C) Voltage legs the current vector by 90 degree
D) Current is in phase with the voltage vector
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