Science GK Practice Question and Answer
8 4 Q:
5ef417b67c1ec61320b5a6c6 Answer : 1. "heating resistance"
4 Q:
5ef417197c1ec61320b5a64d Answer : 2. "synchronous motor"
4 Q:
5f912fafd6785c0fc0d91299 4 4 4 4 4 Q:
5f910423891d2b03f20ed925
Q: Which of the following hitting methods has the highest power factor?
1911 05ef417b67c1ec61320b5a6c6
5ef417b67c1ec61320b5a6c6- 1heating resistancetrue
- 2induction heatingfalse
- 3Arc heatingfalse
- 4Dielectric heatingfalse
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Answer : 1. "heating resistance"
Explanation :
The correct answer is Resistance Heating. Resistance heating is based on the I2R effect and is highly resistive in nature that's why it has the maximum power factor. Electric resistance heating is defined as “the heat produced by passing an electric current through a material that preferably has high resistance”.
Q: Most commonly used motor in motor generator sets of high capacity?
1884 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: A high speed vehicle honks, so its pitch?
1813 05f912fafd6785c0fc0d91299
5f912fafd6785c0fc0d91299- 1is heard as muchfalse
- 2more audibletrue
- 3hearing impairedfalse
- 4First less and then morefalse
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Answer : 2. "more audible"
Q: Oil of vitriol is 1805 05c2dbcb10cb513238953f916
5c2dbcb10cb513238953f916- 1nitric acidfalse
- 2sulphuric acidtrue
- 3hydrochloric acidfalse
- 4phosphoric acidfalse
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Answer : 2. "sulphuric acid"
Q: Homo nuclear molecules contain ? 1801 05c2dbe7bbc106c237a22c19e
5c2dbe7bbc106c237a22c19e- 1polar bondfalse
- 2covalent bondtrue
- 3ionic bondfalse
- 4coordinate bondfalse
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Answer : 2. "covalent bond"
Q: The term PVC used in the plastic industry stands for 1796 05c2dbc589fd00135a4b21163
5c2dbc589fd00135a4b21163- 1polyvinyl choloridetrue
- 2polyvinyl carbotatefalse
- 3phosphor vanadiu chloridefalse
- 4phosphavinyl chloridefalse
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Answer : 1. "polyvinyl choloride"
Q: Which one of the following is the softest? 1754 05c2dbfd594bba731de8f0a22
5c2dbfd594bba731de8f0a22- 1sodiumtrue
- 2ironfalse
- 3aluminiumfalse
- 4lithiumfalse
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Answer : 1. "sodium"
Q: Which of the following is not a fuel gas?
1743 15f910423891d2b03f20ed925
5f910423891d2b03f20ed925- 1Water gasfalse
- 2Producer gasfalse
- 3Laughing gastrue
- 4Marsh gasfalse
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