**(PYQ) UGC NET JRF Paper 1 2021 Set 2 With Solutions, Previous year question paper (PYQ)** of **UGC NTA NET** All the questions and Answers are given here of UGC NTA Net exam 1st paper of set 2. These are important questions, and you will know the pattern of the examination. There are 50 questions and each page contains 10. There are total 5 pages for each question paper.

## (PYQ) UGC NET JRF Paper 1 2021 Set 2 With Solutions

**Information for Questions 1 to 5 :**

Study the given table carefully and answer the question that follow.

Number (N) of candidates (in lakhs) appearing for a University Entrance examination from four different states (A,B,C,D) and the percentage (P) of candidates clearing the same over the years are provided in the table below :

#### Ques 1: Find out the average number of non-qualified candidates in 2019 (from all states).

- 135320
- 137270
- 139870
- 144025

non-qualified candidates (%) = 100-number of qualified candidates

State-wise number of non-qualified candidates in the year 2019

State A = 185000 ⨯(100-28)/100 = 18500⨯72/100 = 133200

State B = 2 10000 ⨯ (100-43)/100 = 210000⨯57/100 = 119700

State C = 250000 ⨯ (100-42)/100 = 250000 ⨯ 58/100 = 145000

State D = 270000 ⨯ (100-34)/100 = 270000⨯66/100 = 178200

Total nun-qualified candidates = 133200 + 119700 + 145000 + 179200 = 576200

Required Average = Total non-qualified candidates / Given number of states

= 576200/4 = 144025

#### Ques 2: in which year did the highest number of candidates clear the entrance exam from State B?

- 2016
- 2018
- 2019
- 2020

Number of qualified candidates from State B during the given years

Year 2016 = 164000⨯42/100 = 68880

Year 2017 = 172000⨯41/100 = 70520

Year 2018 = 202000⨯37/100 = 74740

Year 2019 = 210000⨯43/100 = 90300

Year 2020 = 190000⨯46/100 = 87400

thus, in the year 2019, the highest number of candidates cleared the entrance exam from State B.

#### Ques 3: Find out the total number of students who have cleared the entrance exam from 2016 to 2020 in State A.

- 355460
- 358660
- 360890
- 364420

Number of qualified candidates from State A during the given years

Year 2016 = 231000⨯32/100 = 73920

Year 2017 = 202000⨯44/100 = 88880

Year 2018 = 198000⨯39/100 = 77220

Year 2019 = 185000⨯28/100 = 51800

Year 2020 = 220000⨯33/100 = 72600

Total number of qualified candidates from all the states during the year 2020

State A = 220000⨯33/100 = 72600 + 88880 + 77220 + 51800 + 72600 = 364420

#### Ques 4: Find out the average number of students who qualified in 2020 (from all states).

- 84550
- 84580
- 85375
- 86770

Number of qualified candidates from all the states during the year 2020

State A = 220000⨯33/100 = 72600

State B = 190000⨯46/100 = 87400

State C = 255000⨯30/100 = 76500

State D = 300000⨯35/100 = 105000

The average number of candidates = (72600 + 87400 + 76500 + 105000)/4 = 341500/4 = 85375

#### Ques 5: Find out the difference between the total number of students who qualified in 2017 and the total number of students who qualified in 2018 (from all states).

- 31750
- 31880
- 32220
- 32340

Number of qualified candidates from all states during the year 2017

State A = 20000⨯44/100 = 88880

State B = 172000⨯41/100 = 70520

State C = 245000⨯36/100 = 88200

State D = 310000⨯32/100 = 99200

Thus, the total candidates = 88880 + 70520 + 88200 + 99200 = 346800

Number of qualified candidates from all states during the year 2018

State A = 198000⨯39/100 = 77220

State B = 202000⨯37/100 = 74740

State C = 220000⨯33/100 = 72600

State D = 290000⨯31/100 = 89900

Thus, the total candidates = 72220 + 74740 + 72600 + 89900 = 314460

Thus, difference = 346800-314460 = 32340

#### Ques 6: The characteristics of a normal distribution curve are :

A. it reflects an asymmetrical distribution

B. it is bell-shaped

C. it does not show standard deviation

D. the mean, mode and median coincide at the centre of the distribution

E. The curve is based on an infinite number of observations

Choose the correct answer from the options given below :

- A,B and C only
- B,C and D only
- E,D and E only
- C,D and E only

Research Aptitude

The Normal distribution curve is mostly used in hypothesis testing in research. There are basically two types of hypothesis-Null hypothesis and Alternative hypothesis. The null hypothesis is generally considered to be the accepted fact’ that there is no difference between dependent and independent variables or else we may assume that the population parameter and the sample statistic. The null hypothesis is often an initial claim that is based on previous analysis or special knowledge. The null hypothesis is considered the opposite of the alternative hypothesis.

Researchers also come up with an alternative hypothesis that they think explains a phenomenon. Researchers try to reject or disprove the null hypothesis is accepted as true. For this work, researchers also take the help of confidence level/level of significance, which can be 1%,5% or 10%. The area under the entire normal distribution estire normal distribution curve is 1, or is 100 percent. The Z-table or T-table helps by telling us what percentage is under the curve at a particular point.

#### Ques 7: In India, according to Niti Ayog’s SDG Index (2019-2020), which is the best performing state on SDG-9 (Industry, Innovation and Infrastructure)

- Gujarat
- Karnataka
- Kerala
- Telangana

People development and environment

In India according to NTTI Ayog’s SDG Index Gujrat and the Kerala is the best performing state in SDG 9 (Industry, Innovation and Infrastructure).

SDG India Index is an index prepare by the NITI Ayog to measure the progress of the country and that of individual states based on the United Nations initiated Sustainable Development Goals (SDG). The purpose the NITI Ayog index is to estimate the progress of Indian states and UTs through a single measurable index that would serve as a policy tool and initiate action at the state level.

Here we may talk about Good Governance Index-2021 as well, under which Gujarat is at the first place. Maharashtra is at second place and Goa at third place. Gujarat has excelled in economic administration, human resource development, public infrastructure and facilities, social welfare and development and judicial and public security.

#### Ques 8: Which of the following statements are true ?

A. Simplex data transmission is in two-directions only

B. Full-duplex data transmission is in both directions

C. Full-duplex data transmission is in both directions simultaneously

D. Serial data transmission is when data is sent, 8 bit at a time, over a single wire

E. Parallel data transmission is when one bit of data is sent down over a single wire

Choose the correct answer from the options given below :

- A,B and C only
- B and C only
- C and D only
- C,D and E only

Information and Communication Technology

1. Simplex data transmission. Simplex is the data transmission mode in which the data can flow only in one direction, i.e., the communication is unidirectional.

2. Half duplex data transmission : Half duplex data transmission is transmission in both directions but not at the same time.

3. Full duplex data transmission : Full duplex data transmission occurs in both directions simultaneously.

4. Serial data transmission : Serial Transmission is a form of signal transmission that sends information one bit at a time over a single data channel. Serial interfaces are generally used to connect data communications equipment (DCE) such as modems to data terminal equipment (DTE) such as computers and terminals and for connecting a DCE to a DTE.

5. Parallel data transmission : In parallel transmission (e.g., 8 bits) each bit uses a separate wire to transfer data on a parallel link, a separate line is used as a clock signal. This serves to inform the receiver when data is available.

#### Ques 9: Match List I with List II :

Choose the correct answer from the options given below :

- A-I,B-II, C-III, D-IV
- A-II, B-III, C-IV, D-I
- A-III, B-IV, C-I, D-II
- A-IV, B-I, C-II, D-III

Research Aptitude

Solomon four group design : It is a research design that attempts to take into account the influence of pretesting on subsequent post-test results. Some research design includes a pre-test, which is taken before exposure to a treatment and a post-test which is administered after exposure toa treatment.

The post-test only control design : It is a research design in which there are at least two groups, one of which does not receive a treatment or intervention and data are collected on the outcome measure after the treatment. The group does not receive the treatment of interest is the control group.

The main features of post-test are as follows :

This type of design has two randomly assigned groups an experimental group and a control group.

Neither group is pretested before implementing the treatment.

The treatment is applied only to the experimental group.

One-shot case study : It is difficult to draw conclusions as there is no typical cause and effect relationship between the intervention and the outcome.

Correlational design : As the name indicates, the purpose of correlational studies is to explore whether there is any relationship or interdependence between two variables or characteristics and to ascertain the degree of such relationships. The value of correlational research is to discover relationships among different phenomena with a view to predict and in some situations control their occurrence.

#### Ques 10: Given below are two statements

Statement I : the number 89325324 is divisible by 66.

Statement II : the set of natural numbers is also called the set of whole numbers.

In light of the above statements, choose the correct answer from the options given below :

- Both Statement I and Statement II are false
- Both Statement I and Statement II are true
- Statement I is false but Statement II is true
- Statement I is true but Statement II is false

Mathematical Aptitude and Reasoning

The number 89325324 is divisible by 66. This is a direct question. Thus, statement I is true.

The set of natural numbers is not same as the set of the whole numbers. The difference between natural numbers and whole numbers is as follows :

Natural numbers include all the positive integers from 1 till infinity (∞) and are also used for counting purpose. The set of natural numbers is represented by the letter ‘N’. 0 is not a natural number.

N = {1,2,3,4,5,6,7,8,9,10… and so on}

Whole numbers include all the natural numbers and the number 0. In other words, all natural numbers are whole numbers, but all whole numbers are not natural numbers.

Whole Numbers = {0,1,2,3,4,5,7,8,9….}