Practice Question and Answer
8Q: Indian Water falls "Kunchikal falls" is in which state ? 2767 05b5cc6f1e4d2b4197774ef64
5b5cc6f1e4d2b4197774ef64- 1Odishafalse
- 2Maharastrafalse
- 3Rajasthanfalse
- 4Karnatakatrue
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Answer : 4. "Karnataka"
Explanation :
Answer: D) Karnataka Explanation: Kunchikal falls of India is of height 1493 ft is in Karnataka state of the river Varahi.
Q: When Ionic bonds are formed metallic atoms tend to 2766 05b5cc697e4d2b4197774c5a5
5b5cc697e4d2b4197774c5a5- 1share electronsfalse
- 2gain electronsfalse
- 3lose electronstrue
- 4None of abovefalse
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Answer : 3. "lose electrons"
Explanation :
Answer: C) lose electrons Explanation: Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion. Hence, when Ionic bonds are formed metallic atoms tend to lose electrons and become positive ions
Q: What percentage of carbon is in steel?
2766 05feb07d1f33a00432aff075e
5feb07d1f33a00432aff075e- 13%false
- 24%false
- 32%true
- 45%false
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Answer : 3. "2%"
Q: What is the smallest unit of power?
2766 06082a1dabfeec334bc895434
6082a1dabfeec334bc895434- 1Horsepowerfalse
- 2Megawattfalse
- 3Watttrue
- 4Kilowattfalse
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Answer : 3. "Watt"
Q: Which bank has formed Kisan Clubs to reach farmers easily?
2766 06113912ee60c1d4cec26748a
6113912ee60c1d4cec26748a- 1Reserve Bank of Indiafalse
- 2Bank of Indiafalse
- 3Regional Rural Bankstrue
- 4Allahabad Bankfalse
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Answer : 3. "Regional Rural Banks"
Q: The top and bottom of a tower were seen to be at angles of depression 30° and 60° from the top of a hill of height 100 m. Find the height of the tower ? 2766 15b5cc72ce4d2b4197774f79c
5b5cc72ce4d2b4197774f79c- 142.2 mtsfalse
- 233.45 mtsfalse
- 366.6 mtstrue
- 458.78 mtsfalse
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Answer : 3. "66.6 mts"
Explanation :
Answer: C) 66.6 mts Explanation: From above diagramAC represents the hill and DE represents the tower Given that AC = 100 m angleXAD = angleADB = 30° (∵ AX || BD ) angleXAE = angleAEC = 60° (∵ AX || CE) Let DE = h Then, BC = DE = h, AB = (100-h) (∵ AC=100 and BC = h), BD = CE tan 60°=AC/CE => √3 = 100/CE =>CE = 100/√3 ----- (1) tan 30° = AB/BD => 1/√3 = 100−h/BD => BD = 100−h(√3)∵ BD = CE and Substitute the value of CE from equation 1 100/√3 = 100−h(√3) => h = 66.66 mts The height of the tower = 66.66 mts.
Q: Indian Army celebrated the Poonch Link-up Day on which date?
2765 05ddcfc00874e270a9a3973a3
5ddcfc00874e270a9a3973a3- 1November 25false
- 2November 24false
- 3November 23true
- 4November 21false
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Answer : 3. "November 23"
Q: How many arrangements can be made out of the letters of the word COMMITTEE, taken all at a time, such that the four vowels do not come together? 2765 05b5cc7d1e4d2b4197775129a
5b5cc7d1e4d2b4197775129a- 1216false
- 245360false
- 31260false
- 443200true
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Answer : 4. "43200"
Explanation :
Answer: D) 43200 Explanation: There are total 9 letters in the word COMMITTEE in which there are 2M's, 2T's, 2E's. The number of ways in which 9 letters can be arranged = 9!2!×2!×2! = 45360 There are 4 vowels O,I,E,E in the given word. If the four vowels always come together, taking them as one letter we have to arrange 5 + 1 = 6 letters which include 2Ms and 2Ts and this be done in 6!2!×2! = 180 ways. In which of 180 ways, the 4 vowels O,I,E,E remaining together can be arranged in 4!2! = 12 ways. The number of ways in which the four vowels always come together = 180 x 12 = 2160. Hence, the required number of ways in which the four vowels do not come together = 45360 - 2160 = 43200

