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Free tnpsc model questions Online Test - MeritNotes
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Online Exam
No. of Questions :10
Remaining Time :
1. Which of the following devices does not allow d.c. to pass through?
(a)
capacitor
(b)
inductor
(c)
resistor
(d)
all the above
2. Unit of self-inductance is
(a)
Weber/metre
2
(b)
Henry metre
(c)
Henry/metre
(d)
Henry
3. AC generator works on the principle of
(a)
mutual induction
(b)
electrodynamic induction
(c)
electrostatic induction
(d)
electromagnetic induction
4. In a speedometer the magnet is placed inside a cylinder or drum made up of
(a)
aluminium
(b)
copper
(c)
manganin
(d)
steel
5. Who originally designed the AC generator?
(a)
Henry
(b)
Lawrence
(c)
Faraday
(d)
Nikola Tesla
6. Average value of the alternating current over one complete cycle is
(a)
zero
(b)
unity
(c)
finite
(d)
infinite
7. In Fleming's right hand rule, the thumbs shows direction of
(a)
motion of the conductor
(b)
magnetic field
(c)
electric field
(d)
current
8. Resonance is used in
(a)
Amplifier
(b)
Capacitor
(c)
Radio
(d)
Transformer
9. Which of the following law or rule is the consequence of conservation of energy?
(a)
Fleming's right hand rule
(b)
Fleming's left hand rule
(c)
Lenz's law
(d)
Faraday's law
10. A device which converts high alternating voltage into low alternating voltage and vice versa is
(a)
Transformer
(b)
AC generator
(c)
DC generator
(d)
Rectifier
