GATE Practice Question and Answer
8Q: The p wave of a normal Electrocardiogram indicates 1466 05b5cc6aae4d2b4197774cf89
5b5cc6aae4d2b4197774cf89- 1atrial depolarizationtrue
- 2Ventricular repolarizationfalse
- 3atrial repolarizationfalse
- 4Ventricular depolarizationfalse
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Answer : 1. "atrial depolarization"
Explanation :
Answer: A) atrial depolarization Explanation: The P wave in the ECG represents atrial depolarization, which results in atrial contraction, or atrial systole. The P wave is a summation wave generated by the depolarization front as it transits the atria.
Q: Which is called 'OFF State' in binary? 1466 05b5cc6b3e4d2b4197774d423
5b5cc6b3e4d2b4197774d423- 14false
- 23false
- 32false
- 41true
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Answer : 4. "1"
Explanation :
Answer: D) 1 Explanation: '0' is called OFF State in Binary...
Q: A duster is of dimension 5x5x7 all in cms, is sinked into a cylindrical vessel of radius 5 cm and height 10 cm. After insertion the level of the water is inccresed by 2.14 cm. Then by what percentage the part of the duster is above the layer ? 1464 05b5cc705e4d2b4197774f216
5b5cc705e4d2b4197774f216- 196 %false
- 24 %true
- 397 %false
- 43 %false
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Answer : 2. "4 %"
Explanation :
Answer: B) 4 % Explanation: Imension of the duster is assumed as 5x5x7 cm3 Volume of the duster below the water layer= volume of water increased= πxrxrxh = 3.14×52×2.14 ≈ 168 cm3 Total volume of the duster = 5×5×7 = 175 cm3 Percentage of the duster part below the layer = 168×100/175 = 96% Percentage of the duster part above the layer = 4%
Q: Who among the following took over as the 25th Director General of the Border Roads(DGBR) ? 1462 05b5cc761e4d2b4197774fd49
5b5cc761e4d2b4197774fd49- 1Lt. Gen. Suresh Sharmafalse
- 2Lt. Gen. David R. Syiemliehfalse
- 3Lt. Gen. Srikanth Mishrafalse
- 4Lt. Gen. Sanjeev Kumar Shrivastavatrue
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Answer : 4. "Lt. Gen. Sanjeev Kumar Shrivastava"
Explanation :
Answer: D) Lt. Gen. Sanjeev Kumar Shrivastava Explanation: Lt. Gen. Sanjeev Kumar Shrivastava took over as the 25th Director General of the Border Roads (DGBR). He has replaced Lt. Gen. Suresh Sharma. Prior to it, he was holding the appointment of Director General Combat Engineers at Integrated Headquarters of Ministry of Defence(Army).
Q: The length of a rope in meter by which a cow must be tethered in order that she may be able to graze an area of 2826 sq.m is ? 1461 05b5cc731e4d2b4197774f823
5b5cc731e4d2b4197774f823- 115 mtsfalse
- 230 mtstrue
- 324 mtsfalse
- 436 mtsfalse
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Answer : 2. "30 mts"
Explanation :
Answer: B) 30 mts Explanation: The cow can graze an area of 2826 sq.m i.e it is able to cover area of circle of 2826 sq.m Therefore, πr2 =2826r2 =(2826×7/22) = 899.18 = 900r = 30 m. Therefore, the radius of the circle implies the length of the rope = 30 mts.
Q: Which of the following is an example of chemical weathering? 1460 05b5cc6a6e4d2b4197774cd38
5b5cc6a6e4d2b4197774cd38- 1Oxidationfalse
- 2Acid rainsfalse
- 3Carbonationfalse
- 4All the abovetrue
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Answer : 4. "All the above"
Explanation :
Answer: D) All the above Explanation: Chemical weathering is what happens when rocks are broken down and chemically altered. Chemical weathering is the breakdown of rocks by chemical reactions. Chemical weathering involves changes in the chemical composition of the existing rock to form new rock. Some examples of chemical weathering are hydrolysis, oxidation, carbonation, dissolution, etc.
Q: What natural factors contribute to global climate? 1459 05b5cc62fe4d2b4197774b988
5b5cc62fe4d2b4197774b988- 1Forest Firesfalse
- 2Solar Activityfalse
- 3Melting Permafrostfalse
- 4All the abovetrue
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Answer : 4. "All the above"
Explanation :
Answer: D) All the above Explanation: Global warming is the increase in the earth’s average temperature due to release of several greenhouse gases to the atmosphere by humans. Global warming is affecting many parts of the world. Natural Causes include : 1. Solar Activity 2. Melting Permafrost 3. Forest Fires Human made causes include : 1. Deforestation 2. Overpopulation 3. Landfills 4. Mining 5. Fertilizer Use
Q: Solve the Logical Puzzle ? 1458 05b5cc6c2e4d2b4197774dbb9
5b5cc6c2e4d2b4197774dbb9- 12false
- 24true
- 38false
- 40false
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Answer : 2. "4"
Explanation :
Answer: B) 4 Explanation: