GATE Practice Question and Answer
8Q: Calculate the angle between the two hands of clock when the clock shows 4 : 20 p.m. ? 1753 05b5cc76ae4d2b4197774fea9
5b5cc76ae4d2b4197774fea9- 15 degreesfalse
- 210 degreestrue
- 315 degreesfalse
- 425 degreesfalse
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Answer : 2. "10 degrees"
Explanation :
Answer: B) 10 degrees Explanation: Since at 4 : 20 the minute hand will be at 4 and the angle between them will be same as the distance covered in degree by the hour hand in 20 minutes. Required angle = distance of hour hand = speed × time = 12× 20 =10 degrees.
Q: 'K' cycled from A to B at 10 kmph and returned at the rate of 9 kmph. 'L' cycled both ways at 12 kmph. In the whole journey 'L' took 10 minutes less than 'K'. Find the distance between A and B ? 1752 05b5cc74fe4d2b4197774faef
5b5cc74fe4d2b4197774faef- 132.1 kmfalse
- 215.23 kmfalse
- 33.75 kmtrue
- 432.1 mfalse
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Answer : 3. "3.75 km"
Explanation :
Answer: C) 3.75 km Explanation: Let 'd' be the distance between A and BK -time = d/10 + d/9 = 19d/90 hoursL -time = 2d/12 = d/6 hoursWe know that, 10 min = 1/6 hoursThus, time difference between K and L is given as 10 minutes. => 19d/90 - d/6 = 1/6=> (19d-15d)/90 = 1/6=> 4d/90 = 1/6Thus,d= 15/4 km = 3.75 km. hence the distance between A and B is 3.75 km.
Q: Which of the following elements is a metalloid? 1751 05b5cc622e4d2b4197774b7ce
5b5cc622e4d2b4197774b7ce- 1arsenicfalse
- 2boronfalse
- 3antimonyfalse
- 4All of the abovetrue
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Answer : 4. "All of the above"
Explanation :
Answer: D) All of the above Explanation: A metalloid is any chemical element which has properties in between those of metals and nonmetals, or that has a mixture of them. The six commonly recognised metalloids are boron, silicon, germanium, arsenic, antimony, and tellurium.
Q: What is the value of KL ? Statement A: K2= 4.Statement B: L = 0. 1751 05b5cc6d2e4d2b4197774e451
5b5cc6d2e4d2b4197774e451- 1Only A is sufficientfalse
- 2Only B is sufficienttrue
- 3Both (A) and (B) are sufficientfalse
- 4A) and (B) are sufficient D)false
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Answer : 2. "Only B is sufficient"
Explanation :
Answer: B) Only B is sufficient Explanation: From statement B, As the value of L = 0, the value of KL = 0. Hence only statement B is sufficient.
Q: In which layer is the pressure the highest? 1751 05b5cc678e4d2b4197774c16a
5b5cc678e4d2b4197774c16a- 1Ionospherefalse
- 2Stratospherefalse
- 3Tropospherefalse
- 4Inner coretrue
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Answer : 4. "Inner core"
Explanation :
Answer: D) Inner core Explanation: "Pressure" is the ratio of mass to area. So, for any given area, the one with more mass pressing on it will experience a higher pressure. As you go more deeply into the atmosphere OR earth itself, you are putting more and more mass over you. For the same unit area therefore, the pressure, (mass/area) increases. Hence, the lowest layer will always have the highest pressure i.e, inner core.
Q: How many seconds will a 600 m long train take to cross a man walking with a speed of 7 km/hr in the direction of the moving train if the speed of the train is 67 km/hr ? 1751 05b5cc6dfe4d2b4197774eb20
5b5cc6dfe4d2b4197774eb20- 129 secfalse
- 258 secfalse
- 336 sectrue
- 444 secfalse
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Answer : 3. "36 sec"
Explanation :
Answer: C) 36 sec Explanation: Speed of train relative to man = 67 - 7 = 60 km/hr.= 60 x 5/18 = 50/3 m/sec. Time taken to pass the man = 600 x 3/50 = 36 sec.
Q: India's longest cable-bridge inaugurated by PM Modi in which state ? 1749 05b5cc720e4d2b4197774f603
5b5cc720e4d2b4197774f603- 1Assamfalse
- 2Telanganafalse
- 3Gujarattrue
- 4Karnatakafalse
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Answer : 3. "Gujarat"
Explanation :
Answer: C) Gujarat Explanation: PM Modi Inaugurated India's Longest Cable Bridge in Gujarat, a four-lane bridge over the river Narmada in Bharuch. The bridge is 1344 metres long and 22.8 metres wide. It is built by Larsen and Turbo as a part of the Rs. 379 crore project of the National Highway Authority of India.
Q: Sriram was conducting an experiment in which the average of 11 observations came to be 92, while the average of first five observations was 89, and that of the last five was 86. What was the measure of the 6th observation ? 1749 05b5cc6d0e4d2b4197774e33d
5b5cc6d0e4d2b4197774e33d- 1134false
- 2137true
- 3139false
- 4141false
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Answer : 2. "137"
Explanation :
Answer: B) 137 Explanation: This can be done as, (11 × 92) - (5 × 89) - (5 × 86) = 1012- 445 - 430 = 137