For a given activity, the optimistic time, pessimistic time and the most probable estimates are 5, 17 and 8 days respectively, The expected time is (A) 8 days (B) 9 days (C) 10 days (D) 15 days

For a given activity, the optimistic time, pessimistic time and the most probable estimates are 5,
17 and 8 days respectively, The expected time is
(A) 8 days
(B) 9 days
(C) 10 days
(D) 15 days
by

1 Answer

Answer :

(B) 9 days
by

Related questions

You are a project manager for Move It Now trucking company. Your company specializes in moving household goods across the city or across the country. Your A. 54 B. 66 C. 60 D. 30project involves upgrading the nationwide computer network for the company. Your lead engineer has given you the following estimates for a critical path activity: 60 days most likely, 72 days pessimistic, 48 days optimistic. What is the weighted average or expected value?

Description : You are a project manager for Move It Now trucking company. Your company specializes in moving household goods across the city or across the country. Your project involves upgrading the nationwide computer network for the ... the weighted average or expected value? A. 54 B. 66 C. 60 D. 30

Last Answer : C. 60

If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively (A) 3.5 and 5/6 (B) 5 and 25/36 (C) 3.5 and 25/36 (D) 4 and 5/6

Description : If an activity has its optimistic, most likely and pessimistic times as 2, 3 and 7 respectively, then its expected time and variance are respectively (A) 3.5 and 5/6 (B) 5 and 25/36 (C) 3.5 and 25/36 (D) 4 and 5/6

Last Answer : (C) 3.5 and 25/36

If a is the optimistic time, b is the pessimistic time and m is most likely time of an activity, the expected time of the activity, is (A) (a + m + b)/6 (B) (a + 2m + b)/6 (C) (a + 4m + b)/6 (D) (a + 5m + b)/6

Description : If a is the optimistic time, b is the pessimistic time and m is most likely time of an activity, the expected time of the activity, is (A) (a + m + b)/6 (B) (a + 2m + b)/6 (C) (a + 4m + b)/6 (D) (a + 5m + b)/6

Last Answer : (C) (a + 4m + b)/6

The area under the Beta distribution curve is divided into two equal parts by (A) Most likely time (B) Optimistic time (C) Pessimistic time (D) Expected time

Description : The area under the Beta distribution curve is divided into two equal parts by (A) Most likely time (B) Optimistic time (C) Pessimistic time (D) Expected time

Last Answer : (D) Expected time

Pick up the correct statement from the following: (A) Optimistic time estimate refers to activities (B) Pessimistic time estimate refers to activities (C) Most likely time estimate refers to activities (D) All the above

Description : Pick up the correct statement from the following: (A) Optimistic time estimate refers to activities (B) Pessimistic time estimate refers to activities (C) Most likely time estimate refers to activities (D) All the above

Last Answer : (D) All the above

Estimates of a water supply project depends upon the rate of water supply per capita consumption and probable population estimated at the end of the design period of (A) 5 to 10 years (B) 10 to 15 years (C) 15 to 20 years (D) 20 to 30 years

Description : Estimates of a water supply project depends upon the rate of water supply per capita consumption and probable population estimated at the end of the design period of (A) 5 to 10 years (B) 10 to 15 years (C) 15 to 20 years (D) 20 to 30 years

Last Answer : (D) 20 to 30 years

PERT (Project Evaluation and Review Technique) analysis is based on A. Optimistic time, Pessimistic time and Most likely time B.Pessimistic time, Optional time, Maximum time C.Optimistic time, Efficient time, Most likely time D.Minimax time, Optimistic time and harmonic time

Description : PERT (Project Evaluation and Review Technique) analysis is based on  A. Optimistic time, Pessimistic time and Most likely time  B.Pessimistic time, Optional time, Maximum time  C.Optimistic time, Efficient time, Most likely time  D.Minimax time, Optimistic time and harmonic time

Last Answer : A. Optimistic time, Pessimistic time and Most likely time

Are you pessimistic or optimistic for the economic future of your country?

Description : Are you pessimistic or optimistic for the economic future of your country?

Last Answer : answer:I agree with David Suzuki that economics is a mental illness. From inside that illness, I think that things may go up or down but that it will eventually get worse and worse, unless/until many things change that are outside the mental box of that illness.

Are humans naturally optimistic or pessimistic?

Description : Are humans naturally optimistic or pessimistic?

Last Answer : neither, we are neutral at birth and the effects of life change us to think one way or the other.

Are you optimistic or pessimistic about our future? (Immediate and Long-term)

Description : Are you optimistic or pessimistic about our future? (Immediate and Long-term)

Last Answer : Well, lloydbird honey, I don't know how much of a future we have since I'm a happily married woman . . . Oh, wait, us? Humanity? I think the future looks bright. While I don't ... the importance of saving our planet and its resources. Fluther gives me hope, especially the posts of the young people.

What situation best describes a difference in interpretation A.One painter's life work shows an optimistic outlook while another painter's life work shows a deeply pessimistic outlook. B.One noveli?

Description : What situation best describes a difference in interpretation A.One painter's life work shows an optimistic outlook while another painter's life work shows a deeply pessimistic outlook. B.One noveli?

Last Answer : What is the answer ?

The maximise criteria is ........................... a. Optimistic b. Pessimistic c. Neutral d. None of these

Description : The maximise criteria is ........................... a. Optimistic b. Pessimistic c. Neutral d. None of these

Last Answer : b. Pessimistic

The three time estimates for the activities of the network shown in the given figure are shown above their arrows. The earliest expected time for the event 4, is (A) 19 (B) 14 (C) 24 (D) None of these

Description : The three time estimates for the activities of the network shown in the given figure are shown above their arrows. The earliest expected time for the event 4, is (A) 19 (B) 14 (C) 24 (D) None of these

Last Answer : (A) 19

The mean of 8 article was found to be 15. On rechecking, it was found that two article were wrongly taken as 11 and 9 instead of 16 and 14 respectively. Find the correct mean. A) 17.25 B) 13.65 C) 16.54 D) 16.25

Description : The mean of 8 article was found to be 15. On rechecking, it was found that two article were wrongly taken as 11 and 9 instead of 16 and 14 respectively. Find the correct mean. A) 17.25 B) 13.65 C) 16.54 D) 16.25

Last Answer : D) Calculated mean of 8 articles = 15 Incorrect sum of these 8 articles = (15*8) = 120. Correct sum of these 8 articles = (incorrect sum) - (sum of incorrect articles) + (sum of actual articles) = [120 ... (30)] = 130 Therefore, correct mean = 130/8 = 16.25 Hence, the correct mean is 16.25.

Two pipes fills a tank in 12 hours and 15 hours respectively while a third pipe empties the tank in 18 hours. !f all three pipes operate simultaneously, in what time will the tank be full? a) 10 hours b) 10 10/17 hours c) 11 hours d) 9 hours e) 12 1/17 hours

Description : Two pipes fills a tank in 12 hours and 15 hours respectively while a third pipe empties the tank in 18 hours. !f all three pipes operate simultaneously, in what time will the tank be full? a) 10 hours b) 10 10/17 hours c) 11 hours d) 9 hours e) 12 1/17 hours

Last Answer : b) 10 10/17 hours

Nandhu, naren and abishek can do a piece of work in 10,15, and 30 days respectively. In how many days can Nandhu do the work if he is assisted by naren and abishek on alternate days? a) 6.6 days b) 7.5 days c) 8.4 days d) 9.1 days

Description : Nandhu, naren and abishek can do a piece of work in 10,15, and 30 days respectively. In how many days can Nandhu do the work if he is assisted by naren and abishek on alternate days? a) 6.6 days b) 7.5 days c) 8.4 days d) 9.1 days 

Last Answer : B Nandhu's 1 day work = 1/10 Naren's 1 day work = 1/15 Abishek's 1 day work =1/30 Nandhu's 2 day's work =(1/10*2) =1/5 (nandhu + naren+abishek)'s 1 day work = 1/10+1/15+1/30 =3+2+1/30 =6/30 ... +1/5 = 2/5 Now 2/5 work is done in 3 days Whole work will be done in 3 *5/2 = 15/2 = 7.5 days

For the network shown in the given figure, the expected time for the activity (A) 1-2 is 4 (B) 2-3 is 7 (C) 3-4 is 8 (D) All the above

Description : For the network shown in the given figure, the expected time for the activity (A) 1-2 is 4 (B) 2-3 is 7 (C) 3-4 is 8 (D) All the above

Last Answer : (D) All the above

If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be (A) 2.3% and 84.1% (B) 97.7% and 84.1% (C) 97.7 % and 15.9% (D) 15.9% and 97.7%

Description : If the expected time of completion of a project is 60 weeks with a standard deviation of 5 weeks, the probability of completing the project in 50 weeks and 65 weeks respectively will be (A) 2.3% and 84.1% (B) 97.7% and 84.1% (C) 97.7 % and 15.9% (D) 15.9% and 97.7%

Last Answer : (A) 2.3% and 84.1%

For high flood estimates the average value of the constant C in Dicken's formula Q =CA3/4, is (A) 6.5 (B) 8.5 (C) 9.5 (D) 11.5

Description : For high flood estimates the average value of the constant C in Dicken's formula Q =CA3/4, is (A) 6.5 (B) 8.5 (C) 9.5 (D) 11.5

Last Answer : Answer: Option D

A train overtakes two girls walking along a railway track. The first girl walks at 9 km/hr. The other girl walks at 10.8 km/hr. The train needs 16.8 and 17 seconds respectively to overtake them. What is the speed of the train if both the girls are walking in the same direction as the train? A) 25 m/s B) 45 m/s C) 30m/s D) 40m/s

Description :  A train overtakes two girls walking along a railway track. The first girl walks at 9 km/hr. The other girl walks at 10.8 km/hr. The train needs 16.8 and 17 seconds respectively to overtake them. What is the speed of the ... in the same direction as the train? A) 25 m/s B) 45 m/s C) 30m/s D) 40m/s

Last Answer : ANSWER:B Explanation:  First girl speed = 9km/hr  = 9 * 5 / 18 m/s  = 5/2 m/s  = 2.5 m/s  second girl speed = 10.8 km/hr  = 10.8 * 5/18 m/s  = 54/18  = 3 m/s  Let the speed of the train ... x - 3) * 17  16.8x - 42 = 17x - 51  0.2x = 9  x = 45  Therefore the speed of the train is 45 m/s

If the purchases made during the year were Rs. 60,000, the balance of stock in trade at the beginning and at the end of the year were Rs. 12,000 and Rs. 9,000 respectively and the gross profit on sales was 1/5th, when which one of the following represents the figure of gross profit for the year ? (A) Rs. 15,750 (B) Rs. 14,000 (C) Rs. 12,500 (D) Rs. 17,250

Description : If the purchases made during the year were Rs. 60,000, the balance of stock in trade at the beginning and at the end of the year were Rs. 12,000 and Rs. 9,000 respectively and the gross profit on sales was 1/5th, when which ... year ? (A) Rs. 15,750 (B) Rs. 14,000 (C) Rs. 12,500 (D) Rs. 17,250

Last Answer : Answer: Rs. 12,500

The normal serum GOT activity ranges from (A) 3.0–15.0 IU/L (B) 4.0–17.0 IU/L (C) 4.0–60.0 IU/L (D) 0.9–4.0 IU/L

Description : The normal serum GOT activity ranges from (A) 3.0–15.0 IU/L (B) 4.0–17.0 IU/L (C) 4.0–60.0 IU/L (D) 0.9–4.0 IU/L

Last Answer : Answer : B

Three pipes P, Q and R can fill a tank from empty to full in 40 minutes, 15 minutes, and 30 minutes respectively. When the tank is empty, all the three pipes are opened. P, Q and R discharge chemical solutions X, Y and Z respectively. What is the proportion of the solution Y in the liquid in the tank after 5 minutes? a) 8 / 15 b) 7 / 15 c) 8 / 17 d) 6 / 13 e) 8 / 13

Description : Three pipes P, Q and R can fill a tank from empty to full in 40 minutes, 15 minutes, and 30 minutes respectively. When the tank is empty, all the three pipes are opened. P, Q and R discharge chemical solutions X, Y and Z respectively. ... 5 minutes? a) 8 / 15 b) 7 / 15 c) 8 / 17 d) 6 / 13 e) 8 / 13

Last Answer : a Part of the tank filled by pipe P in 1 minute = 1 / 40 Part of the tank filled by pipe Q in 1 minute = 1 / 15 Part of the tank filled by pipe R in 1 minute = 1/ 30 Here we have to find the proportion of ... together in 5 minute = 5 1/8 = 5/ 8 Required proportion = (1/3) / ( 5/8) = 8 / 15

If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) ⇌ C3H8(g) will be __________ Kcal. (A) -19.4 (B) -30.2 (C) 55.2 (D) -55.2

Description : If heat contents of CH4, C2H4 and C3H8 are -17.9, 12.5 and -24.8 kcal/mole respectively, than ΔH for the reaction CH4(g) + C2H4(g) ⇌ C3H8(g) will be __________ Kcal. (A) -19.4 (B) -30.2 (C) 55.2 (D) -55.2

Last Answer : (A) -19.4

A bus and a truck are available to cross a jungle. The speed of the truck is thrice that of the bus. The capacity of the truck is 60 persons and that of bus is 40 persons. The average occupancy of the bus is twice that of the truck. The tickets for the bus and the truck cost Re 1 and Re 1.50 respectively. What is the ratio of the average rupee collection of the truck to that of the bus in a day? Assume there is no wastage time between trips and the occupancy of the bus/truck is defined as the ratio of the actual number of persons boarding it and its capacity. a) 9:17 b) 17:9 c) 8:27 d) 27:8 e) None of these

Description : A bus and a truck are available to cross a jungle. The speed of the truck is thrice that of the bus. The capacity of the truck is 60 persons and that of bus is 40 persons. The average occupancy of the bus is twice ... boarding it and its capacity. a) 9:17 b) 17:9 c) 8:27 d) 27:8 e) None of these

Last Answer :  Answer: D Average Rupee collection = Speed× capacity × Occupancy × Ticket rate Ratio of average Rupee collection of truck to that of bus= product of above rate According to question, (3×60×1×1.5):(1×40×2×1)= 270:80=27:8

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

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

Five jobs A, B, C, D and E are waiting in Ready Queue. Their expected runtimes are 9, 6, 3, 5 and x respectively. All jobs entered in Ready queue at time zero. They must run in ............. order to minimize average response time if 3 < x < 5. (A) B, A, D, E, C (B) C, E, D, B, A (C) E, D, C, B, A (D) C, B, A, E, D

Description : Five jobs A, B, C, D and E are waiting in Ready Queue. Their expected runtimes are 9, 6, 3, 5 and x respectively. All jobs entered in Ready queue at time zero. They must run in ............. order to minimize average response time if 3 < ... , C (B) C, E, D, B, A (C) E, D, C, B, A (D) C, B, A, E, D

Last Answer : (B) C, E, D, B, A

A tank is 1/4th full. Two pipes which fill the tank in 30minutes and 40 minutes respectively are opened simultaneously. After 10 minutes, a third pipe which empties the full tank in 60 minutes is also opened. In how many minutes the tank will be full? A) 14 B) 12 C) 15 D) 17

Description : A tank is 1/4th full. Two pipes which fill the tank in 30minutes and 40 minutes respectively are opened simultaneously. After 10 minutes, a third pipe which empties the full tank in 60 minutes is also opened. In how many minutes the tank will be full? A) 14 B) 12 C) 15 D) 17

Last Answer : A Since 1/4th is already filled, 3/4th is to filled now. (1/30 + 1/40)*(10+x) – (1/60)*x = ¾ 7/120(10+x)-x/60=3/4 7x-2x/120=3/4-7/12 5x/120=1/6 30x=120 X=4 So total 10+4=14minutes

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

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.

What network model enables engineer managers to schedule, monitor and control large and complex projects by employing three time estimates per activity a. Forecasting b. Program evaluation review technique c. Critical path method d. simulation

Description : What network model enables engineer managers to schedule, monitor and control large and complex projects by employing three time estimates per activity a. Forecasting b. Program evaluation review technique c. Critical path method d. simulation

Last Answer : b. Program evaluation review technique

How is the “activity time” estimates done?

Description : How is the “activity time” estimates done?

Last Answer : Parametric estimates, three point estimates and analogous estimates are the techniques used for estimating activity time estimates.

A,B and C can do piece of work in 11 days,20 days and 55 days respectively, working alone. How soon can the work be done if a is assisted by B and C on alternate days/ a) 6 b) 7 c) 8 d) 9 e) 10

Description : A,B and C can do piece of work in 11 days,20 days and 55 days respectively, working alone. How soon can the work be done if a is assisted by B and C on alternate days/ a) 6 b) 7 c) 8 d) 9 e) 10

Last Answer : Work done by A and B in one day = 1/11 + 1/20 =31/220 Work done by A and C in one day = 1/11 + 1/55 =6/55 Work done in 2 days = 31 /220+6/55=55/220 = ¼ Hence, 1/4 of the work is done in 2 days Hence, it takes 8 days to finish the work Answer : c

A,B and C can do piece of work in 11 days,20 days and 55 days respectively, working alone. How soon can the work be done if a is assisted by B and C on alternate days/ a) 6 b) 7 c) 8 d) 9 e) 10

Description : A,B and C can do piece of work in 11 days,20 days and 55 days respectively, working alone. How soon can the work be done if a is assisted by B and C on alternate days/ a) 6 b) 7 c) 8 d) 9 e) 10

Last Answer : Work done by A and B in one day = 1/11 + 1/20 =31/220 Work done by A and C in one day = 1/11 + 1/55 =6/55 Work done in 2 days = 31 /220+6/55=55/220 = ¼ Hence, 1/4 of the work is done in 2 days Hence, it takes 8 days to finish the work Answer : c

The time corresponding to minimum total project cost is (A) Crash time (B) Normal time (C) Optimistic time (D) Between normal time and crash time

Description : The time corresponding to minimum total project cost is (A) Crash time (B) Normal time (C) Optimistic time (D) Between normal time and crash time

Last Answer : (D) Between normal time and crash time

The time with which direct cost does not reduce with the increase in time is known as (A) Crash time (B) Normal time (C) Optimistic time (D) Standard time

Description : The time with which direct cost does not reduce with the increase in time is known as (A) Crash time (B) Normal time (C) Optimistic time (D) Standard time

Last Answer : (B) Normal time

Maximum number of vehicles that can pass a given point on a lane during one hour without creating unreasonable delay, is known as (A) Traffic density of lane (B) Basic capacity of lane (C) Probable capacity of lane (D) Practical capacity of lane

Description : Maximum number of vehicles that can pass a given point on a lane during one hour without creating unreasonable delay, is known as (A) Traffic density of lane (B) Basic capacity of lane (C) Probable capacity of lane (D) Practical capacity of lane

Last Answer : Answer: Option D

The project schedule is used to determine all of the following except which one? A. Cost estimates B. Activity start dates C. Float times D. Activity end dates

Description : The project schedule is used to determine all of the following except which one?  A. Cost estimates B. Activity start dates C. Float times D. Activity end dates

Last Answer : A. Cost estimates

The rainfall on five successive days on a catchment was 3, 6, 9, 5 and 1 cm respectively. If the  -index for the storm can be assumed to be 3 cm/day, the total direct runoff from the catchment due to this storm is (a) 11 cm (b) 24 cm (c) 9 cm (d) 20 cm

Description : The rainfall on five successive days on a catchment was 3, 6, 9, 5 and 1 cm respectively. If the  -index for the storm can be assumed to be 3 cm/day, the total direct runoff from the catchment due to this storm is (a) 11 cm (b) 24 cm (c) 9 cm (d) 20 cm

Last Answer : (a) 11 cm

A and B can do a work in 12 days and 17 days respectively and with the help of C they complete the work in 5 days and earn ₹ 238. Find the share of B.

Description : A and B can do a work in 12 days and 17 days respectively and with the help of C they complete the work in 5 days and earn ₹ 238. Find the share of B.

Last Answer : A and B can do a work in 12 days and 17 days respectively and with the help of C they complete the work in 5 days and earn ₹ 238. Find the share of B.

If the expected time for completion of a project is 10 days with a standard deviation of 2 days, the expected time of completion of the project with 99.9% probability is (A) 4 days (B) 6 days (C) 10 days (D) 16 day

Description : If the expected time for completion of a project is 10 days with a standard deviation of 2 days, the expected time of completion of the project with 99.9% probability is (A) 4 days (B) 6 days (C) 10 days (D) 16 day

Last Answer : (D) 16 days

Consider the fractional knapsack instance n = 4, (p1, p2, p3, p4) = (10, 10, 12, 18), (w1, w2, w3, w4) = (2, 4, 6, 9) and M = 15. The maximum profit is given by (Assume p and w denotes profit and weight of objects respectively) (A) 40 (B) 38 (C) 32 (D) 30

Description : Consider the fractional knapsack instance n = 4, (p1, p2, p3, p4) = (10, 10, 12, 18), (w1, w2, w3, w4) = (2, 4, 6, 9) and M = 15. The maximum profit is given by (Assume p and w denotes profit and weight of objects respectively) (A) 40 (B) 38 (C) 32 (D) 30

Last Answer : (B) 38

A and B walk around a circular track. They start at 8 a.m. from the same point in the opposite directions. A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively. How many times shall they cross each other before 9.30 a.m.? A.15 B.8 C.7 D.10 E.None of these

Description : A and B walk around a circular track. They start at 8 a.m. from the same point in the opposite directions. A and B walk at a speed of 2 rounds per hour and 3 rounds per hour respectively. How many times shall they cross each other before 9.30 a.m.? A.15 B.8 C.7 D.10 E.None of these

Last Answer : Answer – C (7) Explanation – Relative speed = (2 + 3) = 5 rounds per hourSo, they cross each other 5 times in an hour and 2 times in half an hourHence, they cross each other 7 times before 9.30 a.m.

Let A and B be two fuzzy integers defined as: A={(1,0.3), (2,0.6), (3,1), (4,0.7), (5,0.2)} B={(10,0.5), (11,1), (12,0.5)} Using fuzzy arithmetic operation given by Image (A) {(11,0.8), (13,1), (15,1)} (B) {(11,0.3), (12,0.5), (13,1), (14,1), (15,1), (16,0.5), (17,0.2)} (C) {(11,0.3), (12,0.5), (13,0.6), (14,1), (15,1), (16,0.5), (17,0.2)} (D) {(11,0.3), (12,0.5), (13,0.6), (14,1), (15,0.7), (16,0.5), (17,0.2)}

Description : Let A and B be two fuzzy integers defined as: A={(1,0.3), (2,0.6), (3,1), (4,0.7), (5,0.2)} B={(10,0.5), (11,1), (12,0.5)} Using fuzzy arithmetic operation given by (A) {(11,0.8), (13,1), (15,1)} ( ... ,0.2)} (D) {(11,0.3), (12,0.5), (13,0.6), (14,1), (15,0.7), (16,0.5), (17,0.2)}

Last Answer : (D) {(11,0.3), (12,0.5), (13,0.6), (14,1), (15,0.7), (16,0.5), (17,0.2)}

The difference in the reservoir level and the lowest point of the water mains is 180 m. The expected pressure due to water hammer is 7.5 kg/cm2 in a pressure conduit of diameter 1 m. Assuming the efficiency of the riveted joints of the pipe as 0.6 and minimum cover 3 mm for corrosion, the thickness of the pipe materials, is (A) 10 mm (B) 15 mm (C) 20 mm (D) 25 mm

Description : The difference in the reservoir level and the lowest point of the water mains is 180 m. The  expected pressure due to water hammer is 7.5 kg/cm2  in a pressure conduit of diameter 1 m.  Assuming the efficiency of the ... , is  (A) 10 mm  (B) 15 mm  (C) 20 mm  (D) 25 mm 

Last Answer : (C) 20 mm

For calculating the tractive force along an upgrade of an asphalt road, the most probable value of the co-efficient of traction resistance is assumed (A) 1/10 (B) 1/20 (C) 1/30 (D) 1/100

Description : For calculating the tractive force along an upgrade of an asphalt road, the most probable value of the co-efficient of traction resistance is assumed (A) 1/10 (B) 1/20 (C) 1/30 (D) 1/100

Last Answer : Answer: Option D

Find the range of the given data : 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 -Maths 9th

Description : Find the range of the given data : 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 -Maths 9th

Last Answer : Here, the minimum and maximum values of given data are 6 and 32 respectively. Range = 32 – 6 = 26

Find the range of the given data : 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 -Maths 9th

Description : Find the range of the given data : 25, 18, 20, 22, 16, 6, 17, 15, 12, 30, 32, 10, 19, 8, 11, 20 -Maths 9th

Last Answer : Here, the minimum and maximum values of given data are 6 and 32 respectively. Range = 32 – 6 = 26

Two mail trains Pand Q of 300 m and 600m, run at speed of 130 km/hr and 160 km/hr respectively, in the direction opposite direction to each other. Find the time required to cross each other after the moment they met? A) 11.17 sec B) 12sec C) 9.10sec D) 21sec

Description : Two mail trains Pand Q of 300 m and 600m, run at speed of 130 km/hr and 160 km/hr respectively, in the direction opposite direction to each other. Find the time required to cross each other after the moment they met? A) 11.17 sec B) 12sec C) 9.10sec D) 21sec

Last Answer :  ANSWER:A Explanation:  Length of train P = 300 m  Length of train Q = 600 m  Speed of train p = 130 kmph  Convert km/hr into m/s,  Speed of train p =(130 *5/18)m/s  = 650/18 m/s  = 36.11 m/ ... train B)  = (300+600)m = 900 m We know, time =distance /speed  = 900/ 80.55  = 11.17seconds

Given are the scores (out of 25) of 9 students in a Monday test : 14, 25, 17, 22, 20, 19, 10, 8 and 23 -Maths 9th

Description : Given are the scores (out of 25) of 9 students in a Monday test : 14, 25, 17, 22, 20, 19, 10, 8 and 23 -Maths 9th

Last Answer : Ascending orders of scores is : 8, 10, 14, 17, 19, 20, 22, 23, 25 Now, new score = 8 + 10 + 14 + 17 + 19 + 20 + 22 + 23 + 25 / 9 = 158 / 9 = 17.5 marks Median = (n + 1 / 2)th observation because n is odd = (9 + 1 / 2)th observation = 5th observation = 19 marks.