Name of The Board : National Institute of Science Education and Research
Name of the Paper : National Entrance Screening Test (NEST)
Name of Subject : General/ Biology/ Chemistry/ Mathematics/ Physics
Year : 2015
Website : https://www.nestexam.in/
Download Sample Question Paper: https://www.pdfquestion.in/uploads/8127NESTA.pdf
General National Entrance Screening Test :
Set A :
Total Marks: 240
Time: 3.5 hours
Related : National Institute of Science Education & Research NEST National Entrance Screening Test Question Paper : www.pdfquestion.in/5478.html
General instructions :
1. This question booklet contains five sections. Each section carries 60 marks.
2. Section 1 is the General section. Sections 2 to 5 are for the subjects Biology, Chemistry, Math- ematics and Physics, respectively. Score of the General section and three best scores out of the four subject sections would be counted towards the total score.
3. Read the instructions given at the beginning of each section carefully.
4. Calculators, cell phones, log tables, etc. are NOT permitted in the examination hall.
5. Answers to the questions are to be marked on the OMR sheet provided.
6. Please make sure that the question booklet code (A or B) matches with the OMR sheet code (A or B). In case of discrepancy, please inform the invigilator immediately.
7. Return the OMR sheet to the invigilator at the end of the examination.
Read the following passage carefully and answer questions :
1.1 to 1.3 :
A population pyramid is a graphical representation of the agewise distribution of people in a population (typically that of a country or region of the world). The phrase comes from the fact that typically the shape of this graph looks like a pyramid when the population is growing. It is also used to infer about the reproductive patterns and likelihood of the continuation of a community.
It typically consists of two back-to-back bar graphs, with the population plotted on the X-axis and age intervals on the Y-axis. The left part is typically used for showing males and right for showing females in a particular population in five-year age groups (also called cohorts). Often there tend to be more females than males in the older age groups, due to longer life expectancy of females.
1.1 The population pyramid on the right is an example of
(A) expansive pyramid.
(B) stationary pyramid.
(C) onion shaped pyramid.
(D) constrictive pyramid.
1.2 Populations with constricted pyramids exhibit several common traits. The trait which would NOT be indicated by such pyramids is
(A) high level of education. (B) economic prosperity.
(C) access to good health care. (D) ban on contraceptives.
1.3 The population pyramid on the right may correspond to the present population structure of
(A) India. (B) Germany. (C) Japan. (D) Afghanistan.
1.4 Among the listed countries, the coal reserves of a relatively better quality are likely to be found in
(A) Germany. (B) Russia. (C) Saudi Arabia. (D) India.
1.5 The correct option that captures the sequential transformation of organic plant matter in the process of coalification is
(A) Peat -> Lignite -> Humic coal -> Gytta.
(B) Humic coal -> Gytta -> Lignite -> Graphite.
(C) Peat -> Gytta -> Humic coal -> Coal.
(D) Humic coal -> Gytta -> Coal -> Graphite.
1.6 In recent times, industrial regions which are large users of coal have been experiencing acid rains because
(A) the oxides of sulphur formed during combustion combine with water to form acids.
(B) the hydrides of sulphur formed in combustion combine with water to form acids.
(C) the sulphur reacts with other green house gases to form acids.
(D) the carbon monoxide formed in combustion, due to catalyzing action of sulphur, combines with water to form acids.
1.7 A star S is being orbited by a planet P such that the planet rotates around itself once every 0.1 earth days. It is observed that P completes 196 rotations around itself by the time it completes 1 revolution around S. If the planet’s sense of rotation and revolution is in same direction, its orbital period (in earth days) would be
(A) 19.6 (B) 19.5 (C) 19.7 (D) 19.8
1.8 The actual one full cycle of seasons is 365 days 5 hours and 48.75 minutes. Until 1582, the calender used in the western world took the year to be exactly 365 days and 6 hours long. In 1582, corrections were suggested to match the yearlength to the exact full cycle of seasons. The correction suggested would have been:
(A) reducing number of leap days over a cycle of 400 years.
(B) reducing number of days in every February.
(C) adding one day to every July.
(D) adding a number of extra days in 1582 to realign the calendar.
1.9 The total number of triangles shown in the figure on the right side is
(A) 26. (B) 27. (C) 28. (D) 29.
1.10 A free-flowing river originating in Nilgiri mountain range and flowing downstream will have the largest contribution of nutrients from
(A) chemoautotrophic bacteria eroded from the soil.
(B) minerals from the underlying bedrock.
(C) dead leaves and other organic matter collected along the flow.
(D) photosynthesis activity of phytoplanktons and floating aquatic plants.