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DSSSB TGT Natural Science Mock Test - 3 - DSSSB TGT/PGT/PRT MCQ


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30 Questions MCQ Test DSSSB TGT Mock Test Series 2024 - DSSSB TGT Natural Science Mock Test - 3

DSSSB TGT Natural Science Mock Test - 3 for DSSSB TGT/PGT/PRT 2024 is part of DSSSB TGT Mock Test Series 2024 preparation. The DSSSB TGT Natural Science Mock Test - 3 questions and answers have been prepared according to the DSSSB TGT/PGT/PRT exam syllabus.The DSSSB TGT Natural Science Mock Test - 3 MCQs are made for DSSSB TGT/PGT/PRT 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for DSSSB TGT Natural Science Mock Test - 3 below.
Solutions of DSSSB TGT Natural Science Mock Test - 3 questions in English are available as part of our DSSSB TGT Mock Test Series 2024 for DSSSB TGT/PGT/PRT & DSSSB TGT Natural Science Mock Test - 3 solutions in Hindi for DSSSB TGT Mock Test Series 2024 course. Download more important topics, notes, lectures and mock test series for DSSSB TGT/PGT/PRT Exam by signing up for free. Attempt DSSSB TGT Natural Science Mock Test - 3 | 200 questions in 120 minutes | Mock test for DSSSB TGT/PGT/PRT preparation | Free important questions MCQ to study DSSSB TGT Mock Test Series 2024 for DSSSB TGT/PGT/PRT Exam | Download free PDF with solutions
DSSSB TGT Natural Science Mock Test - 3 - Question 1

The Rowlatt Act aimed at

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 1

The correct answer would be Option B. 
The Rowlatt Act aimed at imprisonment without trial and summary procedures for trial. Despite much opposition, the Rowlatt Act was passed in March 1919. The purpose of the act was to curb the growing nationalist upsurge in the country. Mahatma Gandhi, among other Indian leaders, was extremely critical of the Act and argued that not everyone should be punished in response to isolated political crimes.
 

DSSSB TGT Natural Science Mock Test - 3 - Question 2

Who discovered the atom bomb?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 2

Otto Hahn, (8 March, 1879 - 28 July, 1968) was a German chemist and Nobel laureate, a pioneer in the fields of radioactivity and radiochemistry. He is regarded as "the father of nuclear chemistry". On 15 November 1945 the Royal Swedish Academy of Sciences announced that Hahn had been awarded the 1944 Nobel Prize in Chemistry "for his discovery of the fission of heavy atomic nuclei." Otto Hahn received many governmental honours and academic awards from all over the world for his scientific work.

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DSSSB TGT Natural Science Mock Test - 3 - Question 3

The mountains which are not a part of the Himalayan chain:  

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 3

The Aravalli Range, literally meaning 'line of peaks', is a range of mountains in western India and eastern Pakistan running approximately 800 km from north-west to southwest across Indian states of Rajasthan, Haryana, and Gujarat and Pakistani provinces of Punjab and Sindh. It is one of the world's oldest Mountain ranges. It dates back to pre-Indian sub-continental collision with the mainland Eurasian Plate.

DSSSB TGT Natural Science Mock Test - 3 - Question 4

Niyamgiri hill is located in Kalahandi district?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 4

The Niyamgiri is a hill range situated in the districts of Kalahandi and Rayagada in Odisha. These hills are home to Dongria Kondh indigenous people. In recent times these hills are in media discussions due to the conflict of inhabitant tribals and Bauxite Mining Project by Vedanta Aluminium Company.

DSSSB TGT Natural Science Mock Test - 3 - Question 5

The first grammarian of the Sanskrit language was -

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 5

Panini was a Sanskrit grammarian from Pushka lavati, Gandhara. He is known for his Sanskrit grammar, particularly for his formulation of the 3,959 rules of Sanskrit morphology, syntax and semantics in the grammar known as Ashtadhyayi (meaning"eight chapters").

DSSSB TGT Natural Science Mock Test - 3 - Question 6

In which city was North India's largest floating Solar project inaugurated?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 6

North India's largest floating Solar project was inaugurated in Chandigarh.

DSSSB TGT Natural Science Mock Test - 3 - Question 7

In which state is BPCL planning to set up a 1 GW renewable energy plant?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 7

BPCL is planning to set up a 1 GW renewable energy plant in Rajasthan.

DSSSB TGT Natural Science Mock Test - 3 - Question 8

From which state in the USA did SpaceX's Falcon 9 rocket launch the '51 Starlink' satellite?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 8

SpaceX's Falcon 9 rocket launched the '51 Starlink' satellite from California.

DSSSB TGT Natural Science Mock Test - 3 - Question 9

Directions to Solve

In each of the following questions find out the alternative which will replace the question mark.

Question -

ZRYQ : KCJB :: PWOV : ?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 9

DSSSB TGT Natural Science Mock Test - 3 - Question 10

Directions to Solve

In each of the following questions two statements are given and these statements are followed by two conclusions numbered (1) and (2). You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.

Question -

Statements: Some ants are parrots. All the parrots are apples.

Conclusions:

  1. All the apples are parrots.
  2. Some ants are apples.
Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 10

DSSSB TGT Natural Science Mock Test - 3 - Question 11

Directions to Solve

In each of the following questions two statements are given and these statements are followed by two conclusions numbered (1) and (2). You have to take the given two statements to be true even if they seem to be at variance from commonly known facts. Read the conclusions and then decide which of the given conclusions logically follows from the two given statements, disregarding commonly known facts.

Question -

Statements: All the actors are girls. All the girls are beautiful.

Conclusions:

  1. All the actors are beautiful.
  2. Some girls are actors.
Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 11

DSSSB TGT Natural Science Mock Test - 3 - Question 12

If A is the brother of B; B is the sister of C; and C is the father of D, how D is related to A?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 12

If D is Male, the answer is Nephew.

If D is Female, the answer is Niece.

As the sex of D is not known, hence, the relation between D and A cannot be determined.

Note: Niece - A daughter of one's brother or sister, or of one's brother-in-law or sister-in-law. Nephew - A son of one's brother or sister, or of one's brother-in-law or sister-in-law.

DSSSB TGT Natural Science Mock Test - 3 - Question 13

A, B, C, D and E are sitting on a bench. A is sitting next to B, C is sitting next to D, D is not sitting with E who is on the left end of the bench. C is on the second position from the right. A is to the right of B and E. A and C are sitting together. In which position A is sitting ?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 13

Therefore, A is sitting in between B and C.

DSSSB TGT Natural Science Mock Test - 3 - Question 14

Find the one which does not belong to that group ?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 14

In each of the groups ABB, CCCDDDD, BBCCC and DDDDEEEEE, only two letters of the alphabet are used and each letter is written as many times as its place value in the alphabet.

This pattern is not followed in the group BCC.

DSSSB TGT Natural Science Mock Test - 3 - Question 15

Directions: Study the following information carefully to answer the given question.

There are two axes AB and XY such that A is in north, B is in south, X is in west and Y is in east. Q is the point of intersection of both the axes. At A, B, X and Y, there are houses of 4 friends - Amit, Rahul, Karan and Kunal, respectively. Another friend Rohan is standing at the point 'Q' facing north-east direction. He then walks 4 km in the same direction which he is facing and reaches 'M'. Then he turns 135° anticlockwise and walks 5 km straight and reaches 'N'. Amit starts walking towards south from his house and reaches point Q. After reaching Q, Rohan tells Amit to meet him at N; so Amit travels the shortest distance possible to reach N in the end where he meets Rohan.

Q. Find the shortest distance Amit travels from Q to reach the point N.

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 15

The shortest distance would be NQ. Based on the directions Rohan took, the triangle formed is a right-angled triangle. Using Pythagoras theorem:
NQ2 + QM2 = NM2
NQ2 + 42 = 52
NQ2 = 25 – 16
NQ = √9
NQ = 3 km

DSSSB TGT Natural Science Mock Test - 3 - Question 16

Directions: Study the following information carefully to answer the given question.

There are two axes AB and XY such that A is in north, B is in south, X is in west and Y is in east. Q is the point of intersection of both the axes. At A, B, X and Y, there are houses of 4 friends - Amit, Rahul, Karan and Kunal, respectively. Another friend Rohan is standing at the point 'Q' facing north-east direction. He then walks 4 km in the same direction which he is facing and reaches 'M'. Then he turns 135° anticlockwise and walks 5 km straight and reaches 'N'. Amit starts walking towards south from his house and reaches point Q. After reaching Q, Rohan tells Amit to meet him at N; so Amit travels the shortest distance possible to reach N in the end where he meets Rohan.

Q. Point 'M' is in which direction with respect to Rahul's house?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 16

So, point 'M' is in north-east direction with respect to Rahul's house.

DSSSB TGT Natural Science Mock Test - 3 - Question 17

Direction : Study the following question carefully and choose the right answer.

Q: If in a code language ‘PUTREFY’ is written as ‘XPQSTRL’ and ‘NAVIGATE’ is written as ‘GYMOWYQT’ how is ‘AVIARY’ written in that language?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 17

P    U    T    R    E    F    Y
↓    ↓    ↓    ↓    ↓    ↓    ↓
X    P    Q    S    T    R    L
 And
 
N    A    V    I    G    A    T    E
↓    ↓    ↓    ↓    ↓    ↓    ↓    ↓
G    Y    M    O    W    Y    Q    T
Therefore,
 
A    V    I    A    R    Y
↓    ↓    ↓    ↓    ↓    ↓
Y    M    O    Y    S    L

DSSSB TGT Natural Science Mock Test - 3 - Question 18

Study the following line graph and answer the questins.
Exports from Three Companies Over the Years (in Rs. crore)

Q. In which year was the difference between the exports from Companies X and Y the minimum?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 18

The difference between the exports from the Companies X and Y during the various years are:

In 1993 = Rs. (80 - 30) crores = Rs. 50 crores.

In 1994 = Rs. (60 - 40) crores = Rs. 20 crores.

In 1995 = Rs. (60 - 40) crores = Rs. 20 crores.

In 1996 = Rs. (70 - 60) crores = Rs. 10 crores.

In 1997 = Rs. (100 - 80) crores = Rs. 20 crores.

In 1998 = Rs. (100 - 50) crores = Rs. 50 crores.

In 1999 = Rs. (140 - 120) crores = Rs. 20 crores.

Clearly, the difference is minimum in the year 1996.

DSSSB TGT Natural Science Mock Test - 3 - Question 19

Study the following line graph and answer the questions.

Exports from Three Companies Over the Years (in Rs. crore)

Q.

For which of the following pairs of years the total exports from the three Companies together are equal?

DSSSB TGT Natural Science Mock Test - 3 - Question 20

What is the simple interest for 9 years on a sum of Rs. 800 if the rate of interest for the first 4 years is 8% per annum and for the last 4 years is 6% per annum?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 20

8% of 800 for 4 years + 6% of 800 for 4 years = 64 x 4 + 48 x 4 = 256 + 192 = 448. However, we do not know the rate of interest applicable in the 5 th year and hence cannot determine the exact simple interest for 9 years.

DSSSB TGT Natural Science Mock Test - 3 - Question 21

Find the compound interest on Rs. 1000 at the rate of 20% per annum for 18 months when interest is compounded half-yearly.

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 21

DSSSB TGT Natural Science Mock Test - 3 - Question 22

30 men working 5 h a day can do a work in 16 days. In how many days will 20 men working 6 h a day do the same work?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 22

Work equivalence method:
30 × 5 × 16 = 20 × 6 × n
Gives the value of n as 20 days

DSSSB TGT Natural Science Mock Test - 3 - Question 23

[18 * 15 – 20] / [(3.2 + 9.4) – 7.6] = ?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 23

250 / 5 = 50

So Option C is correct

DSSSB TGT Natural Science Mock Test - 3 - Question 24

The number of seats in a cinema hall is decreased by 8% and also the price of the ticket is increased by 4 percent. What is the effect on the revenue collected?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 24

Answer – b) decrease 4.32% Explanation : Let initially seats are 100 and price of each seat is 100, so total initial revenue = 10000
now, seats are 92 and price of each seat = 104, so total revenue = 92*104 = 9568 so percent change in revenue = (432/10000)*100 = 4.32 decrease

DSSSB TGT Natural Science Mock Test - 3 - Question 25

 A man spends 60% of his income. His income is increased by 20% and his expenditure also increases by 10%. Find the percentage decrease in his saving?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 25

Answer – a) 10% Explanation : Let initially income is 100. So, expenditure = 60 and saving = 40 now income is increased by 20% i.e. 120. So, expenditure = (70/100)*120 = 84 and saving = 36 so % percent decrease in saving = (4/40)*100 = 10%

DSSSB TGT Natural Science Mock Test - 3 - Question 26

The sum of three numbers is 98. The ratio of the first two numbers is 2 : 3 and that of the last two numbers is 5 : 8. Find the 2nd number.

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 26

Let the numbers be x, y and z.
x + y + z = 98
Also, x : y = 2 : 3 and y : z = 5 : 8
Therefore, x : y : z = 10 : 15 : 24
Let x = 10k, y = 15k and z = 24k
Then, 10k + 15k + 24k = 98 
 k = 2
The numbers are 20, 30 and 48.
Hence, second number is 30.

DSSSB TGT Natural Science Mock Test - 3 - Question 27

Rahul purchased a scooter at 13/15th of its selling price and sold it at 12% more than its selling price. What is his gain percent?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 27

Let SP be Rs. x.
Then, CP = Rs. (13/15)x
Receipt = 112% of Rs. x
= Rs. (28/25)x
Gain = Rs. [(28x/25) – (13x/15)]
= Rs. 19x/75

DSSSB TGT Natural Science Mock Test - 3 - Question 28

There are two shops, A and B. Shop A gives successive discounts of 60% and 40%, whereas shop B gives successive discounts of 30% and 70%. If the selling price of an article is the same in both the shops, then what is the ratio of marked prices of the article in the two shops?

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 28

Let the MPs be x and y in shops A and B, respectively.
SPs in shops A and B are 0.24x and 0.21y, respectively.
Then, according to question:
0.24x = 0.21y
⇒ x : y = 7 : 8
Hence, ratio of marked prices of the article in the two shops A and B = 7 : 8.

DSSSB TGT Natural Science Mock Test - 3 - Question 29

Ratio between the lateral surface area and the total surface area of a right circular cylinder is 3 : 5. If the lateral surface area is 1848 sq. m, then volume of the cylinder is (in cubic m).

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 29

Lateral surface area (L. S. A.) = 2πrh
Total surface area = (T. S. A.) = 2πr(r + h)

5h = 3h + 3r
2h = 3r

r2 = 196
r = 14 m

= 12,936 cubic m

DSSSB TGT Natural Science Mock Test - 3 - Question 30

The given rectangle ABCD has length 9 and width 5. Diagonal AC is divided into 5 equal parts at W, X, Y and Z. Find the area of the shaded region.

Detailed Solution for DSSSB TGT Natural Science Mock Test - 3 - Question 30

Triangle ABC has area 
Triangles ABW, WBX, XBY, YBZ and ZBC have equal bases and altitudes, so the area of each of these small triangles is 1/5
Similarly, triangles ADW, WDX, XDY, YDZ and ZDC each have area 9/2.
Thus, the shaded region has area 

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