General Knowledge Practice Question and Answer
8 Q: What is the coupling of primary and secondary coils in a transformer?
1219 05ef4495d2d6fc772f50b8ceb
5ef4495d2d6fc772f50b8ceb- 1Electricalfalse
- 2Mechanicalfalse
- 3Magnetictrue
- 4All thesefalse
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Answer : 3. "Magnetic"
Explanation :
The secondary coil is also generating a magnetic field that is growing and shrinking just like the field in the primary coil. This coupling of magnetic energy between these two coils is called mutual induction.
Q: Most commonly used motor in motor generator sets of high capacity?
1689 05ef417197c1ec61320b5a64d
5ef417197c1ec61320b5a64d- 1Cage Model Induction Motorfalse
- 2synchronous motortrue
- 3DC Compounder Motorfalse
- 4None of the abovefalse
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Answer : 2. "synchronous motor"
Explanation :
The tendency nowadays is to use synduction or synchronous motors. The synduction motor resembles an induction motor but runs at synchronous speed.
Q: Are fan boxes installed in roofs?
1450 05ef4167fd40ebf3f783329a5
5ef4167fd40ebf3f783329a5- 1Casing-keeping wiringfalse
- 2in cleat wiringfalse
- 3in conduit wiringtrue
- 4Wiringfalse
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Answer : 3. "in conduit wiring"
Explanation :
Most building codes require ceiling fans to be mounted on special fan-rated boxes made of metal or strong plastic with deep-threaded holes for the mounting screws. The box must be mounted firmly by attaching it directly to a framing member or using a fan-rated brace.
Q: Capacitors are fitted to increase the power coefficient.
2796 05ef4162e7c1ec61320b5a5b8
5ef4162e7c1ec61320b5a5b8- 1parallel to the supplytrue
- 2By putting resistance to supplyfalse
- 3In the supply chainfalse
- 4None of thesefalse
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Answer : 1. "parallel to the supply"
Explanation :
In an AC circuit, magnetic reversal due to phase difference between current and voltage occurs 50 or 60 times per second. A capacitor helps to improve the power factor by relieving the supply line of the reactive power.
Q: Solder wire is made?
1094 05ef415d2bea49d16b47d3a44
5ef415d2bea49d16b47d3a44- 1Land and tintrue
- 2Zinc and copperfalse
- 3copper and leadfalse
- 4None of thesefalse
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Answer : 1. "Land and tin"
Explanation :
Solder is a fusible metal alloy used to create a permanent bond between metal workpieces. It is made up of 60% tin and 40% lead.
Q: Tungsten resistance to temperature rise?
1976 05ef41568bea49d16b47d39a1
5ef41568bea49d16b47d39a1- 1decreasesfalse
- 2increasestrue
- 3there is no changefalse
- 4All thesefalse
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Answer : 2. "increases"
Explanation :
At high temperatures, the tungsten filament gets hot and atoms in the filament vibrate more. The electrons in the current now collide more with the atoms & more energy is needed to push the current through the filament. Hence, the resistance of tungsten increases with temperature.
Q: In which country is the multinational military exercise 'Peace Prayas IV' being organised?
483 065d875e319457b4231b67221
65d875e319457b4231b67221- 1Indiafalse
- 2Nepaltrue
- 3Bangladeshfalse
- 4Pakistanfalse
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Answer : 2. "Nepal"
Explanation :
Multinational military exercise 'Shanti Prayas IV' is being organized in Nepal. 19 countries including India, Bangladesh and Pakistan are participating in this exercise. Prime Minister Pushpa Kamal Dahal "Prachanda" inaugurated this two-week long military exercise.
Q: Which Article of the Constitution of India empowers the High Courts for enforcement of fundamental rights?
631 0624c77046dc29f5ccd0a3196
624c77046dc29f5ccd0a3196- 1Article - 32false
- 2Article -124false
- 3Article -226true
- 4Article - 229false
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Answer : 3. "Article -226 "
Explanation :
The High Court has the jurisdiction under Article 226 to issue directions, orders or writs for the enforcement of Fundamental Rights. A High Court is empowered to issue directions, orders, or writs for the enforcement of a Fundamental Right and for any other purpose those include: Habeas corpus.