The earth completes one rotation on its axis in : (1) 23 hrs. 56 min. 4.9 sec (2) 23 hrs. 10 min. 2 sec (3) 23 hrs. 30 min. (4) 24 hrs.

1 Answer

Answer :

(1) 23 hrs. 56 min. 4.9 sec Explanation: The Earth rotates around its axis once in about 24 hours with respect to the sun and once every 23 hours 56 minutes and 4 seconds with respect to the stars. The Earth rotates from the west towards east. Seasons are caused by Earth's rotation around its axis.

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Description : The earth completes one rotation on its axis in : (1) 23 hrs. 56 min. 4.9 sec (2) 23 hrs. 10 min. 2 sec (3) 23 hrs. 30 min. (4) 24 hrs.

Last Answer : 23 hrs. 56 min. 4.9 sec

Description : Adam and Smith are working on a project. Adam takes 18 hrs to type 108 pages on a computer, while Smith takes 15 hrs to type 120 pages. How much time will they take, working together on two different computers to type a ... ? a) 23 hrs 24 min b) 45 hrs 42 min c) 25 hrs 42 min d) 42 hrs 45 min

Last Answer : C Number of pages typed by Adam=108 Number of pages typed by Adam in 1 hour = 108/18=6 Number of pages typed by Smith =120 Number of pages typed by Smith in 1 hour = 120/15 =8 Number of pages typed by both in ... (6 + 8) = 14 Time taken by both to type 360 pages, = (360 * 1/14) =25 hrs 42 min

Description : A flywheel weighs 400 kg and has a radius of gyration of 30 cm about its axis of rotation. It is mounted on a shaft subjected to a moment of 40 kgm. If the flywheel starts from restits speed after 3 seconds wil be a.10.9 rad/sec b.19.0 rad/sec c.51.2 rad/sec d.3.33 rad/sec e.16.35 rad/sec

Last Answer : d. 3.33 rad/sec

Description : Which of the following is not true for Geostationary Satellite? (1) Its time period is 24 hrs (2) Its angular speed is equal to that of earth about its own axis (3) It is fixed in space (4) It revolves from west to east over the equator

Last Answer :  It is fixed in space

Description : After flying for 16 minutes at 100kt TAS with a 20kt tail wind, you have to return to the airfield of departure. You will arrive after: a. 10 min 40 sec b. 20 min c. 24 min d. 16 min

Last Answer : c. 24 min

Description : After flying for 16 minutes at 100kt TAS with a 20kt tail wind, you have to return to the airfield of departure. You will arrive after: a. 10 min 40 sec b. 20 min c. 24 min d. 16 min

Last Answer : c. 24 min

Description : Two filling tap can fill a dumper in 14 and 28 min. respectively and when the waste tap is open, they can together fill it in 35 min. The waste pipe can empty the full dumper in – A) 152/9 hrs. B) 137/7 hrs. C) 60/9 hrs. D) 140/11 hrs.

Last Answer :  D 1/14 + 1/28 – 1/35 =>10 + 5 – 4/140 =>11/140 =>140/11 => hence answer is 140/11 hours.

Description : The moon is showing its same face to the earth because – (1) It is not rotating about its own axis (2) Its rotation and revolution are opposite (3) Its periods of rotation and revolution are the same (4) Its rotation is faster than its revolution

Last Answer : (3) Its periods of rotation and revolution are the same Explanation: Because it is "tidally-locked" to the Earth. The Earth's gravity slows down the moon's rotation, so that it rotates at the same ... who walks around a center pole, but shifts their body so they are always facing it as they walk.

Description : Equator represents – (1) line joining North and South poles (2) imaginary line passing round the Earth midway between North & South poles (3) a belt (ring) around the planet Saturn (4) axis of rotation of Earth

Last Answer : (2) imaginary line passing round the Earth midway between North & South poles Explanation: An equator is the intersection of a sphere's surface with the plane perpendicular to the sphere ... astronomical bodies have equators similarly defined. The length of the Equator is roughly 40,075 kilometres.

Description : The Earth takes about _________ to complete one rotation around its axis. A. 48 hours B. One month C. 24 hours D. 365 days

Last Answer : ANSWER: C

Description : The Earth takes about _________ to complete one rotation around its axis. A. 48 hours B. One month C. 24 hours D. 365 days

Last Answer : ANSWER: C

Description : The Earth takes about _________ to complete one rotation around its axis. A. 48 hours B. One month C. 24 hours D. 365 days 27

Last Answer : ANSWER: C

Description : The Earth takes about _________ to complete one rotation around its axis. A. 48 hours B. One month C. 24 hours D. 365 days

Last Answer : ANSWER: C

Description : Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is: A.58 sec B.50 sec C.48 sec D.56 sec E.None of these

Last Answer : Answer – C (48 sec) Explanation – Relative speed = all lengths/time [60+90] = [1.10 +0.9 ]/time [ PLUS when opposite direction] time=2/150 = 1/75 h 1 hour______3600 sec 1/75 hr______? ?= 3600/75=48 sec

Description : What is the surveillance range of a general TCS system? a) 30 sec b) 20min c) 2 min d) 4 min

Last Answer : d) 4 min

Description : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Last Answer : 22

Description : On what dates of April 1994 did SUNDAYfall? (A) 2,9,16,23,30 (B) 3,10,17,24 (C) 4,11,18,25 (D) 1,8,15,22,29

Last Answer : Answer: B Solution:. Let us find the day on 1st April, 1994. 2000 years have 0 odd day. We have to calculate day on 1st April, 1994. 2000-1994 = 6 Years. 1996 is leap year and have 4 odd days Ordinary years ... was Friday Thus, on 3 rd , 10 th , 17 th , 24 th will be Sunday fall on April 1994.

Description : The normal glucose tolerance curve reaches peak is (A) 15 min (B) 1 hr (C) 2 hrs (D) 2 ½ hrs

Last Answer : B

Description : A leak in the bottom of a bunker can empty the full bunker in 4 hrs. An inlet pump fills water at the rate of 3 litres a min. when the bunker is full, the inlet is opened and due to the leak, ... hrs. How many litres does the bunker field? A) 1160 litrs B) 1610 litres C) 2160 litres D) 2610 litres

Last Answer :  C Work done by the inlet in 1 hr = (1/4 – 1/6) = (3-2/12) = 1/12 Work done by the inlet in 1 min = 1/12 * 1/60 = 1/720 Volume of 1/720 part = 3 litres Volume of whole = (720 * 3 )=2160 litres.

Description : The request information should normally be made within  a) 48 Hrs b) 24 Hrs c) 30 days d) 45 days

Last Answer : c) 30 days

Description : A tank can be filled by a tap in 8 hrs while it can be emptied by another tap in 18 hrs. if both the taps are opened simultaneously, then after how much time will the cistern get filled? A) 14hrs 24mins B) 14 hrs 12 mins C) 14hrs 56 mins D) 14hrs 30mins

Last Answer : A Net part filled in 1hr = (1/8 – 1/18) = 9 – 4/72 = 5/72 Therefore the tank will be filled in 72/5 hrs i.e., 14 hrs 24mins

Description : Can your vision become blurred 24/7 from 9 hrs a day on the computer?

Last Answer : Yeah, at least for a while. Has happened to me.

Description : It is desired to concentrate a 20% salt solution (20 kg of salt in 100 kg of solution) to a 30% salt solution in an evaporator. Consider a feed of 300 kg/min at 30°C. The boiling point of the solution is 110°C, the latent heat of ... 3.06 10 5 (B) 6.12 10 5 (C) 7.24 10 5 (D) 9.08 10

Last Answer : (A) 3.06 × 10

Description : Critical speed of rotation, N (in rps - rotation per second) of a trammel is equal to (where, g = acceleration due to gravity = 9.81 m/sec 2 and, r = radius of trammel, metre.) (A) (1/2π). √(g/r) (B) (1/π). √(g/r) (C) ½ √(g/r) (D) 2π. √(g/r)

Last Answer : (A) (1/2π). √(g/r)

Description : Since there are 23 Hours, 56 Minuets & 4.1 Seconds in a day, what happens to the extra 3 Minuets & 56.9 Seconds?

Last Answer : shut down

Description : What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation? A. 26,426.4 miles B. 27,426.4 miles C. 23,426.4 miles D. 22,426.4 miles

Last Answer : D. 22,426.4 miles

Description : For a homogeneous earth dam 50 m high having 2 m free broad, a flow net was constructed and the results were : Number of potential drops = 2.4 Number of flow channels = 0.4. If co-efficiency of permeability of the dam material is ... 24 10-3 m3 /sec (C) 6 10-5 m3 /sec (D) 24 10-5 m3 /sec

Last Answer : (D) 24 × 10-5 m3 /sec

Description : Two pumps M and N can separately fill a dumper in 36 minutes and 45 minutes respectively. Both the pumps are opened together but 12 minutes after the start the pump M is turned off. How much time will it take to fill the dumper? A) 9 min B) 10 min C) 30 min D) 32 min

Last Answer : C 12/36 + x/45 = 1 (12*5)/180+4x/180=1 60+4x=180 4x=120 X=120/4=30min

Description : In man, the amount of calcium in gms filtered in 24 hrs period by the renal glomeruli is (A) 5 (B) 10 (C) 15 (D) 20

Last Answer : Answer : B

Description : The fertilized eggs of Catla take about _ to _ hrs for hatching at 30°C (a) 10 to 12 (b) 12 to 14 (c) 14 to 18 (d) 18 to 24

Last Answer : (d) 18 to 24

Description : A drawee is need to be given a deliberation of A. 24 hrs B. 48 hrs C. 72hrs D. 10 days

Last Answer : B. 48 hrs

Description : 2 male, 6 female, and 8 girls can do a work in 192 hrs, 4 male and 16 girls can do it in 160 hrs, 4 male and 6 female can do it in 240 hrs.10 male and 24 girls can do it in. a) A.87 3/ 11 hrs b) B.78 4 /11 hrs c) C.88 6 /12 hrs d) 80 4 /5 hrs

Last Answer : A Let 1 males 1 hr work = x 1 female 1 hour work = y 1 girl 1 hour work = z Then 2x + 6y + 8z = 1/192 ------>1 4x + 16z = 1/160 --------->2 4x + 6y = 1/240 ------------->3 Adding 2 and ... 1/192 + 1/160 =(5+6) / 960 = 11/960 10 male and 24 girls can do work in 960/11 hrs i.e., 87 3 /11 hrs

Description : two pipes X and Y can fill a cistern in 18 hrs and 24 hrs respectively. If both the pumps are opened simultaneously. How much time will be taken to fill the cistern? A) 10hrs 50mints B) 10 hrs 5mints C) 10hrs 17mints D) 10hrs 44mints

Last Answer : C Part filled by x in 1hour = 1/18 Part filled by y in 1 hour = 1/24 Part filled by (x+y) in 1 hour = 1/18 + 1/24 =>4+3/72 =>7/72 The cistern will be full in 72/7 hrs = 10 hrs 17mins.

Description : A butt weld has been made by MMA in a 50mm thick impact tested steel plate. The welding electrode used was a basic type, 5mm diameter. The measured welding parameters for one of the runs was 250 amps, 24 volts, using DC ... given to calculate the arc energy b) 1.9 kJ/mm c) 1.87 kJ/mm d) 2.0 kJ/mm

Last Answer : d) 2.0 kJ/mm

Description : The pole star does not seem to move because (a) it is in line with the earth’s axis of rotation (b) it moves around the sun and not the earth (c) its movement can be seen only during a solar eclipse (d) it rotates very rapidly

Last Answer : Ans:(a)

Description : We always see the same lace of the moon, because - (1) It is smaller than the earth (2) It revolves on its axis in a direction opposite to that of the earth (3) It takes equal time for revolution ... the earth and rotation on its own axis (4) It rotates at the same speed as the earth around the sun

Last Answer : (3) It takes equal time for revolution around the earth and rotation on its own axis Explanation: It is tidal locking that causes the synchronous rotation which causes the Moon to present "just one side ... to revolve (orbit) around the Earth. So it maintains a "constant face" in our direction.

Description : We always see the same lace of the moon, because - (1) It is smaller than the earth (2) It revolves on its axis in a direction opposite to that of the earth (3) It takes equal time for revolution ... the earth and rotation on its own axis (4) It rotates at the same speed as the earth around the sun

Last Answer : (3) It takes equal time for revolution around the earth and rotation on its own axis Explanation: It is tidal locking that causes the synchronous rotation which causes the Moon to present "just one side ... to revolve (orbit) around the Earth. So it maintains a "constant face" in our direction.

Description : Is a kind of satellite which has a period of revolution equivalent to the period of rotation of the earth about its axis. A. Passive satellite B. Synchronous satellite C. Active satellite D. Geosynchronous satellite

Last Answer : D. Geosynchronous satellite

Description : An earth satellite whose period of revolution is equal to the period of rotation of the earth about its axis. A. Geosynchronous B. Steerable C. Passive D. Active

Last Answer : A. Geosynchronous

Description : What is exact time taken by the earth for single rotation on its own axis?

Last Answer : 23 hrs 56 minutes 4.09 sec

Description : What is exact time taken by the earth for single rotation on its own axis?

Last Answer : 23 hrs 56 minutes 4.09 sec

Description : What is the direction of rotation of earth on its axis ?

Last Answer : West to East

Description : 1. In which years did the Right to Information Act come into force? 2. The electron emitted in beta radiation originates from where? 3. The name of Geoff Bycott is associated with which game? ... of the day during summer? 20. Which Mughal emperor is credited with the composition of Hindi songs?

Last Answer : Answer : 1 1. 2005 2. Inner orbits of atoms 3. Cricket 4. 23 hrs 56 minutes 4.09 see 5. Tejapala 6. D. W. Eisenhower 7. Inner part of ear 8. V.V. Giri 9. Argon 10. Amir Khusrau 11. R ... low pressure 15. Tomb of Sikandar Lodi 16. 38 ATP 17. In the Supreme Court 18. Cathode 19. Norway 20. Jahangir

Description : We always see the same face of the moon, because (1) it is smaller than the earth (2) it revolves on its axis in a direction opposite to that of the earth (3) it takes equal time for revolution around the earth and rotation on its own axis (4) it rotates at the same speed as the earth around the sun

Last Answer : it takes equal time for revolution around the earth and rotation on its own axis

Description : The moon is showing its same face to the earth because (1) It is not rotating about its own axis (2) Its rotation and revolution are opposite (3) Its periods of rotation and revolution are the same (4) Its rotation is faster than its revolution

Last Answer : Its periods of rotation and revolution are the same

Description : 5, 8, 12, 18, 24, 30, 36, 42, ____ a) 52 b) 46 c) 48 d) 54 e) 56

Last Answer : Each term in the series is the addition of successive prime numbers. Like Prime numbers are2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and so on. So first term is addition of (2 + 3). Ie 5, then second term is (3 + 5) ie ... +17)ie. 30, then (17+19)ie.36, then (19+23)ie., 42, then (23+29)i.e. 52. Answer: a)

Description : Equator represents (1) line joining North and South poles (2) imaginary line passing round the Earth midway between North & South poles (3) a belt (ring) around the planet Saturn (4) axis of rotation of Earth

Last Answer : imaginary line passing round the Earth midway between North & South poles

Description : How do you convert 36 cm per sec to m per min?

Last Answer : To convert cm to m divide by 100To convert s to min divide by 60→ 36 cm/s = 36 × (1 cm)/(1 s)= 36 × (1 ÷ 100 m )/(1 ÷ 60 min)= 36 × (1/100 m ÷ 1/60 min)= 36 × 60/100 m/min= 21.6 m/min

Description : How do you convert 36 cm per sec to m per min?

Last Answer : To convert cm to m divide by 100To convert s to min divide by 60→ 36 cm/s = 36 × (1 cm)/(1 s)= 36 × (1 ÷ 100 m )/(1 ÷ 60 min)= 36 × (1/100 m ÷ 1/60 min)= 36 × 60/100 m/min= 21.6 m/min

Description : We have defined EER by a) BTU/hr/W c) BTU/min/W b) BTU/sec/W d) BTU/hr/V

Last Answer : BTU/hr/W