Practice Question and Answer
8 Q: Some tips and related energy conversions are given below?
(i) Electrical Generator - Electrical from Mechanical
(ii) Electric motor - electro-to-mechanical
(iii) Diesel engine - electric from light
(iv) Solar cells - chemical to mechanical
Which of the above pairs is related to it?
2368 05e57921d2ec0ee6eac128596
5e57921d2ec0ee6eac128596(i) Electrical Generator - Electrical from Mechanical
(ii) Electric motor - electro-to-mechanical
(iii) Diesel engine - electric from light
(iv) Solar cells - chemical to mechanical
Which of the above pairs is related to it?
- 1(i) and (ii)true
- 2(i) and (iii)false
- 3(ii) and (iv)false
- 4(iii) and (iv)false
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Answer : 1. "(i) and (ii)"
Q: Who has won the Formula One Italian Grand Prix 2020 title?
2368 05f59bc1a93cd3236360f1353
5f59bc1a93cd3236360f1353- 1Pierre Gaslitrue
- 2Lewis Hamiltonfalse
- 3Carlos Senzfalse
- 4Lance Strollfalse
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Answer : 1. "Pierre Gasli"
Q: The ideal of ‘positive liberty’ was first conceived by 2368 05c516256c387693c759de0c6
5c516256c387693c759de0c6- 1Aristotlefalse
- 2Hegelfalse
- 3Greentrue
- 4Laskifalse
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Answer : 3. "Green"
Q: निम्नलिखित में से कौन सा शब्द'बादल' का पर्यायवाची शब्द नहीं है—
2368 05e4f882f1b69e805d0c35712
5e4f882f1b69e805d0c35712- 1जलदfalse
- 2वारिदfalse
- 3वारिजtrue
- 4जीमूतfalse
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Answer : 3. "वारिज"
Q:Directions :- Read the given information carefully and answer the following questions.
There are four hostels i.e. A, B, C and D.
In hostel A: Number of boys are 120 and number of girls are 30% more than that of number of girls in
hostel B.
In hostel B: Number of boys are double than that of number of girls.
In hostel C: Number of boys are 100 more than that of boys in hostel A and total boys and girls in C is 1000.
In hostel D: Number of boys is 182 more than the number of boys in hostel A. Average of number of girls of hostel A and that of hostel D is 223.Number of boys in hostel D is 98 less that of boys in hostel B.
Difference between number of boys and girls in hostel D is what percent of difference between boys and girls in hostel B?
2368 06040adb50634b252a6ba852e
6040adb50634b252a6ba852e- 153%false
- 258%true
- 363%false
- 460%false
- 557.5%false
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Answer : 2. "58%"
Q: How many lines of symmetry does a Pentagon have? 2368 05b5cc6b2e4d2b4197774d36e
5b5cc6b2e4d2b4197774d36e- 14false
- 25true
- 36false
- 40false
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Answer : 2. "5"
Explanation :
Answer: B) 5 Explanation: A regular Pentagon have 5 sides and 5 lines of symmetry. The number of lines of symmetry in a regular polygon is equal to the number of sides.
Q: A cavern is an underground chamber formed by 2368 05b5cc611e4d2b4197774b65b
5b5cc611e4d2b4197774b65b- 1Erosiontrue
- 2Runofffalse
- 3Depositionfalse
- 4Evaporationfalse
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Answer : 1. "Erosion"
Explanation :
Answer: A) Erosion Explanation: Caverns are openings in the ground. Some famous caverns in the United States are Mammoth Cave, Carlsbad Caverns, Wind Cave, and Luray Caverns. When rainwater trickles down through the soil, it carries carbon dioxide from the air with it. This turns acidic as it moves through the soil, joining with carbon from decaying plants. This acidic rainwater then eats away at, or erodes, the rock under the ground, forming a cave or cavern. For this process to occur, the rock must be the right type; limestone, dolomite, and gypsum are common.
Q: Which one of the following metals does not react with water to produce Hydrogen? 2367 05c2dc16c94bba731de8f0a40
5c2dc16c94bba731de8f0a40- 1Cadmiumtrue
- 2Lithiumfalse
- 3Potassiumfalse
- 4Sodiumfalse
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