Science GK Practice Question and Answer
8 Q: Speed of sound is maximum?
1123 0601406bc5beea84b8ecef91c
601406bc5beea84b8ecef91c- 1in airfalse
- 2In waterfalse
- 3in vacuumfalse
- 4Steeltrue
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Answer : 4. "Steel"
Q: Solder wire is made?
1115 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: What chemical substance is present in bones and teeth, what is it called?
1108 0601408f65beea84b8ecf1c6c
601408f65beea84b8ecf1c6c- 1calcium chloridefalse
- 2calcium boratefalse
- 3calcium phosphatetrue
- 4calcium sulfatefalse
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Answer : 3. "calcium phosphate"
Q: Which one of the following is an alloy?
1095 15f9103db9e18f97b703f9c7b
5f9103db9e18f97b703f9c7b- 1Zincfalse
- 2Steeltrue
- 3leadfalse
- 4aluminumfalse
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Answer : 2. "Steel"
Q: Polythene is industrially produced by polymerisation of
1093 0611b62596d0fd147810fb227
611b62596d0fd147810fb227- 1Methanefalse
- 2Acetylenefalse
- 3Ethylenetrue
- 4Styrenefalse
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Answer : 3. "Ethylene"
Q: Insulin was invented by?
1081 1611b67f06d0fd147810fba82
611b67f06d0fd147810fba82- 1Eijkmanfalse
- 2Bettingtrue
- 3Domagkfalse
- 4H. G. khuranafalse
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Answer : 2. "Betting"
Q: Which government has launched 'Mo Sarkar' campaign?
1077 05f6041cc80a26b7dab0005f1
5f6041cc80a26b7dab0005f1- 1West Bengalfalse
- 2Tripurafalse
- 3Nagalandfalse
- 4Odishatrue
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Answer : 4. "Odisha"
Explanation :
Odisha Chief Minister Naveen Patnaik has launched the 'Mo Sarkar' program. This program promotes Gandhian thinking. Also, encourages people to raise their voice for their rights. 'Mo Sarkar' aims to improve governance by collecting feedback on the behavior and professionalism displayed by government officials. This program has been started in 21 district headquarters, hospitals and medical colleges of Cuttack, Sambalpur and Berhampur.
Q: Iron pipes, from which water is supplied, are coated with zinc (Zn) to prevent rusting. This layering process is called?
1052 0611b604eccbc2b477b6dbf8e
611b604eccbc2b477b6dbf8e- 1Annealingfalse
- 2Vulcanizationfalse
- 3Yashad coatingtrue
- 4none of thesefalse
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