Saturday, 12 October 2013

hobby as way of time pass

Hobbies are a wonderful ways to pass our time.It gives internal pleasure and piece in excess time...we need not to lost in dreams and wasting our time. Use your creative ideas and awake your the artist within you and see the quality of your extra time. 

The world is advancing and  with this we have seen a drastic change in  the hobbies of people. people are not using their original hobbies for spending there extra time .Most of us are now  using our gadgets for pastimes but they are actually waste of time  these gadgets are suppressing our creativity and thinking skills.They doesn't  provide real internal pleasure .it just pass your times.
everyone have their childhood hobbies but as they grow up they could't give time to their original hobbies.They are just lost in this busy world.Give your childhood hobbies a little time and see the difference in your mood 
  • hobbies entertain us in the most beautiful ways
  • It builds self -esteem and sense of competence
  • it makes us more interesting and better among  friends circle
  • it emotionally satisfy us and gives real peace of mind
  • teaches life lessons ,self discipline,patience ,creativity etc..

Sunday, 8 September 2013

open book examination

Open text based assessment / open book examination
Definition
OTBA may be defined as a process of evaluation based on examination in which text/picture/chart material etc. is supplied prior to examination and allowed to take reference from those materials while examination In India CBSE is going to conduct OTBA for ix and xiith classes from 2014 onward.
Schools will be supplied with "textual material in a few months before the commencement of SA-ii. A textual material may be in the form of an article, a case study, a diagram, a concept/mind map, a picture or a cartoon, problem/situation based on the concepts taught to be students during second term”. Textual material will be related to chosen concepts taken from the syllabi.
"OTBA will have questions of higher order thinking skills some of which may be subjective, creative and open ended”. Students will be able to refer to that material during exam, “textual material supplied earlier will be printed again as part of the question paper and thus will be available while answering the questions".
For std. xi, the OTBA will be applicable only to economics, biology and geography. This will be part of the final exam in March. CBSE advised schools to mark the answer sheets based on four criterions.
·         First is the student's understanding and application of the concepts to the situational problems,
·         Second being ability to suggest and bring out the appropriate solutions to the problem,
·         Third is the ability to come up with innovative opinions and fourth the ability to deeply analyse, based on a wide range of perspectives.
 OTBA will comprise 15%-20% of the total marks and may also include value-based questions, which is already part of the current set up. Since std. ix comes under the continuous and comprehensive evaluation scheme, the March OTBA will be part of summative assessment-ii (SA-ii).
 How will this affect the Indian education system?
Against
The steps taken by CBSE may seem innovative but they are going so fast that Indian education system may not find hard to accept the changes

·         is teachers of Indian education system are able to properly judge the student's analysing technique, innovative opinion etc.? Judging these for common school  teachers might be a tough work
·         with already grading system and marks for practical and assessments it’s easy to score marks in fairly easy and sometimes unfair means
·         Weaker students will don't pay attention to studies.
·         for the proper assessments of students in OTBA it will requires question set to an above average level which can test the higher thinking skills of students and highly qualified teachers.
Favour
The world is advancing so our education system but with the university exam dominated by closed book, invigilated pen and paper tests, it is the need of hour to judge our students differently given the human capital needs of a knowledge economy, not just because of the absence of technology that is used routinely in everyday business and commerce, but because this type of examination instrument is incompatible with constructivist learning theory that favours deep learning. It is further argued that a commitment to authentic assessment will pave the way for a different type of final examination, where real-world problems are allowed to take Centre-stage, and multi-media can be harnessed to provide the learner with a more engaging experience.
With greater engagement, this, in turn, can yield better results in terms of the depth of student learning. An on-going research project with an open book, open web examination format at u21global has yielded Positive results in terms of student perceptions of this examination instrument compared to the Invigilated, closed book type exam. Importantly, OTBA is a transferable model that can just as easily be administered in an on campus setting as online, and while there will always be a small number of students who will cheat, the main priority should be to focus on the higher quality learning outcomes of the majority, rather than set up an entire system to stop a small minority. Certainly, if there is roughly equal Scope for cheating (as the results of two student surveys would seem to suggest) then it would make sense to opt for the model that maximises student learning.A limitation of this study involves the methodological considerations pertaining to measurement issues, Sampling units, and the number of variables investigated in this study. Subsequently, this limits the generalizability of the findings reported. Hence, replications with more representative samples of respondents and extensions of measurement scales are planned for the future.
Further references may be taken from
Biggs, j (1999). Teaching for quality learning at university, oxford university press, oxford.
Carrier, d. (1990). Legislation as a stimulus to innovation. Higher education management, 2(1), 88-98.
Chapman, k. J., davis, r., toy, d. & wright, l. (2004). Academic integrity in the business school
Environment: i'll get by with a little help from my friends. Journal of marketing education, 26 (3),
236-250.
Herrington, j. & herrington, a. (1998). Authentic assessment and multimedia: how university students
Respond to a model of authentic assessment. Higher education research and development, 17(3),
305-322.
Kleiner, c. & lord, m. (1999). The cheating game. U.s. news & world report, 127 (20), 54-63.
Lam, w., williams, j. B., & chua, a. Y. K. (2007). E-xams: harnessing the power of icts to enhance
Authenticity. Educational technology & society, 10 (3), 209-221.
Http://www.ifets.info/journals/10_3/14.pdf [viewed 9 aug 2007].
Mcmurtry, k. (2001). E-cheating: combating a 21st century challenge, teaching and higher education
Journal, 29 (4), 36-41.
Sims, r. (2004). Trends, fads and futures: 21 years of educational multimedia: where have we got to, and
Where should we go? Proceedings of world conference on educational multimedia, hypermedia and
Telecommunications 2004 (pp. 3755-3766). Chesapeake, va: aace.
Wiggins, g. (1998). Educative assessment. San francisco: jossey bass.
Williams, j.b. (2004) creating authentic assessments: a method for the authoring of open book open web
Examinations. In r. Atkinson, c. Mcbeath, d. Jonas-dwyer & r. Phillips (eds), beyond the comfort
Zone: proceedings of the 21st ascilite conference, pp. 934-937.
Williams, j.b. (2006) the place of the closed book, invigilated final examination in a knowledge

Economy. Educational media international, 43(2), 107-119.



Tuesday, 27 August 2013

FIELD MEASUREMENT (SURVEYING)

Aryabhatta Knowledge University
  Sem. iv   2013                               Time 3hr                            Full marks: 70
FIELD MEASUREMENT (SURVEYING)                        
Attempt any five questions in which question no 1 is compulsory
1.       Choose the correct option of the following (any seven)
(a)    The main principal of surveying is to work
(i)                  From part to whole
(ii)                From whole to part
(iii)               From higher level to lower level
(iv)              From lower level to higher level
(b)   The angle of intersection of the two plane mirrors of an optical square is
(i)                  30°
(ii)                45°
(iii)               60°
(iv)              90°
(c)    The allowable length of an offset depends upon
(i)                  The degree of accuracy required
(ii)                The method of setting out the perpendiculars and nature of ground
(iii)               The scale of plotting
(iv)              all of the above
(d)   The correction for sag is
(i)                  always positive
(ii)                always subtractive
(iii)               always zero
(iv)              sometimes additive and sometimes subtractive
(e)   Which of the following statements is incorrect ?
(i)                  the true meridian at defend places are parallel to each other
(ii)                the true meridian at any place is not variable
(iii)               the true meridian converges to a point in northern and southern hemispheres
(iv)              the maps prepared by national survey departments of any country are based on true meridian
(f)     The most reliable method of plotting  a theodolite traverse is
(i)                  by consecutive coordinates of station
(ii)                by independent coordinates of each station
(iii)               by plotting included angles and scaling off each traverse leg
(iv)              by the tangent method of plotting
(g)    the prismatic compass and surveyor’s compass
(i)      give WCB (whole circle bearing ) of a line and QB (quadrantal bearing)of a line respectively
(ii)    both give QB of a line and WCB of a line
(iii)   both give QB of a line
(iv)  both give WCB of a line
(h)   Which of the following is not the function of levelling head?
(i)      To support the main part of the instrument
(ii)    To attach the theodolite to the tripod
(iii)   To provide a means for levelling the theodolite
(iv)  None of the above
(i)      The line normal to the plumb line is known as
(i)      Horizontal line
(ii)    Level line
(iii)   Datum line
(iv)  Vertical line
(j)     Which of the following is Lehmann’s rule of plane tabling?
(i)                  The location of the instrument station is always distant from each of the three rays from the known points in proportion to their distances
(ii)                When looking in the direction of each of the given points, the instrument station will be on the right side of one ray and on the left side of the other ray
(iii)               When the instrument station is outside the circumscribing circle ,its location is always on the opposite side of the ray to the most distant point as the intersection of the other two rays
(iv)              None of the above
2.       (a) work differentiate between plane surveying and geodetic surveying
(b) What do you understand by accuracy and precision?
(c)   A 30 m  chain was found to be 12 cm too long after chaining  a distance of 1750m .It     was   found to be 23cm too long at the end of day’s work after chaining a total distance of 3600m . Find the true distance if the chain was corrected before the commencement of the
3.       (a) What is offset ? What are the points to be considered while selecting offsets
(b) With neat sketches ,explain any two methods of chaining along a sloping ground
(c) In chaining a line ,what is the maximum slope (i)  in degrees and (ii) as 1 in n , which can be ignored if the error from the source does not exceed 1 in 1000 ?
4.       (a) Explain the following cases with neat sketches  :
(i)                  Obstacles to ranging but not chaining
(ii)                Obstacles to both chaining and ranging
(b) AB is a chain line crossing a lake , A and B are on the opposite side of a lake.  A line AC , 800m  long ,is ranged to the right of AB clear of the lake . Similarly, another line AD , 1000m long ,is ranged to the left of AB such that the points C , B and  D  are in the same line . the lengths of BC  and BD are 400m and 600 m respectively .if the chainage at A is 1200m,  calculate the chainage of B
5.       (a) What do you understand by  local attraction ? What are the methods for detecting and eliminating local attraction ?
(b) The  following bearings are observed in running a closed traverse:
Line
FB
BB
AB
71°05’
250°20’
BC
110°20’
292°35’
CD
161°35’
341°45’
DE
220°50’
40°05’
EA
300°50’
121°10’

Determine the correct magnetic bearing of the lines.
6.       (a) Explain how the procedure of reciprocal levelling eliminates the effect of atmospheric refraction and earth’s curvature as well as the effect of the line of collimation.
(b) From a running fly levels from a benchmark of RL 183.215 , the following readings were obtained :
BS
1.215
2.035
1.980
2.65
FS
0.965
3.830
0.980

From the last position of the instrument, five pegs at 20m intervals are to be set out on a uniform rising gradient of 1 in 40 ; the first peg is to have an RL of 181.580 .work out the staff readings  required for setting the tops of the pegs on the given gradient
7.       (a) What are temporary adjustments of the instrument ? Explain in brief. Why is it necessary?
(b) Explain how you would take field observations with a theodolite so as to eliminate the following:
(i) Error due to eccentricity of verniers
(ii) Error due to non adjustment of line of sight
(iii)               Error due to nonuniform graduation
(iv)              Index error of vertical circle
(v)                Error due to slip
8.       (a) Define the following
(i)                  Counter line
(ii)                Contour interval
(iii)               Horizontal equivalent
(b) What are the characteristic of contour lines?
(c) List the names of methods employed for solving three-point   problem .Describe any one in detail
9. Write short notes on any four of the following
(a)  Tape correction
(b) Optical square
(c) Diagonal scale
(d) Dumpy level
(e)  plane table surveying