Practice Question and Answer
8Q: Which best describes how air moves during convection? 4244 05b5cc6a0e4d2b4197774ca56
5b5cc6a0e4d2b4197774ca56- 1cool air falls downtrue
- 2warm air falls downfalse
- 3cool air is replaced by warm airfalse
- 4air always falls downfalse
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Answer : 1. "cool air falls down"
Explanation :
Answer: A) cool air falls down Explanation: During convection, cool and dense air falls through the warmer and less dense air. The warm air having less mass is being displaced by the cooler which is much heavy. Convection always involves the air rising through the atmosphere.
Q: Two trains of equal length, running with the speeds of 60 and 40 kmph, take 50 seconds to cross each other while they are running in the same direction. What time will they take to cross each other if they are running in opposite directions ? 4244 05b5cc6e5e4d2b4197774ed06
5b5cc6e5e4d2b4197774ed06- 110 sectrue
- 211 secfalse
- 312 secfalse
- 48 secfalse
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Answer : 1. "10 sec"
Explanation :
Answer: A) 10 sec Explanation: Relative Speed = 60 -40 = 20 x 5/18 = 100/18 Time = 50 Distance = 50 x 100/18 = 2500/9 Relative Speed = 60 + 40 = 100 x 5/18 Time = 2500/9 x 18/500 = 10 sec.
Q: Direction: In these questions, a part of the sentence is given in bold. Below are given alternative to the bold part at (A), (B) and (C) which may improve the sentence. Choose the correct alternative. In case no improvement is needed you answer is (D).
The newspaper provides more international news than domestic news.
4242 05d7b4cd345d25422746e54fc
5d7b4cd345d25422746e54fcThe newspaper provides more international news than domestic news.
- 1nationaltrue
- 2alienfalse
- 3provincialfalse
- 4No improvementfalse
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Answer : 1. "national"
Q: A rectangular park is 120 m long and 104 m wide. A 1-m wide path runs along the boundary of the park, remaining completely inside the park area. Thus, the outside edges of the path run along the boundary wall of the park. The inside edges of the path are marked with a white line of negligible thickness. If it costs ₹2.50 to mark each metre with the white line, then how much would it cost (in ₹) to fully mark the inside edges of the path?
4240 064953cb8dad6f2e01f5ec951
64953cb8dad6f2e01f5ec951- 11090false
- 21080false
- 31120false
- 41100true
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Answer : 4. "1100"
Q: Second battle of Panipat was fought between?
4238 05d42a7bf29741f37c2549cb3
5d42a7bf29741f37c2549cb3- 1Babur and Lodifalse
- 2Akbar and Hemutrue
- 3Mughal and Britishfalse
- 4Akbar and Lodifalse
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Answer : 2. "Akbar and Hemu"
Q: What is the sum of six hundred nine and four thousand twenty-eight?
4237 062010495eed42364a6de598b
62010495eed42364a6de598b- 14870false
- 23820false
- 33087false
- 44637true
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Answer : 4. "4637"
Q: A company requires 12,100 strength. Present employees are 400 ladies and 6400 gents. To reach the target how many ladies required to maintain the same ratio ? 4235 05b5cc741e4d2b4197774f99f
5b5cc741e4d2b4197774f99f- 1400false
- 2600false
- 3900true
- 4700false
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Answer : 3. "900"
Explanation :
Answer: C) 900 Explanation: 6,400 gents, 2400 ladies in that company.So total 8,800employees.for 8,800 employees, we want 2400 ladies.for 12,100employees we want how many ladies ?=> (12,100/8,800) x 2400 = 3300.So we want 3300 - 2400 = 900 more ladies.
Q: Which option will replace the question mark in the following picture series?

4233 05db292374c6b184b527d31ba
5db292374c6b184b527d31ba- 1false
- 2true
- 3false
- 4false
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