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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 Natural Science Mock Test - 3

DSSSB TGT Natural Science Mock Test - 3 for DSSSB TGT/PGT/PRT 2024 is part of DSSSB TGT/PGT/PRT 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.
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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

Niyamgiri hill is located in Kalahandi district?

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

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 4

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

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

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

DSSSB TGT Natural Science Mock Test - 3 - Question 5

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 5

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

DSSSB TGT Natural Science Mock Test - 3 - Question 6

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 6

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

DSSSB TGT Natural Science Mock Test - 3 - Question 7

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 7

DSSSB TGT Natural Science Mock Test - 3 - Question 8

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 8

DSSSB TGT Natural Science Mock Test - 3 - Question 9

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 9

DSSSB TGT Natural Science Mock Test - 3 - Question 10

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 10

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 11

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 11

Therefore, A is sitting in between B and C.

DSSSB TGT Natural Science Mock Test - 3 - Question 12

Find the one which does not belong to that group ?

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

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 13

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 13

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 14

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 14

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

DSSSB TGT Natural Science Mock Test - 3 - Question 15

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 15

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 16

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 16

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 17

The following pie-charts show the distribution of students of graduate and post-graduate levels in seven different institutes in a town.
Distribution of students at graduate and post-graduate levels in seven institutes:
Total number of students of graduate level = 27300

 

Total number of students of post – graduate level = 24700

Q.

Total number of students studying at post-graduate level from institutes N and P is

DSSSB TGT Natural Science Mock Test - 3 - Question 18

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 19

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 19

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 20

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 20

DSSSB TGT Natural Science Mock Test - 3 - Question 21

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 21

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 22

15 men could finish a piece of work in 210 days. But at the end of 100 days, 15 additional men are employed. In how many more days will the work be complete?

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

Total work = 15 × 210 = 3150 man days.
After 100 days, work done = 15 × 100 = 1500 man days.
Work left = 3150 – 1500 = 1650 man days.
This work has to be done with 30 men working each day.
The number of days (more) required = 1650/30 = 55 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

85943 – 71206 + 37517 – 3512 + 119 = ?

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

52254 – 3512 + 119 = 48861

So Option B is correct

DSSSB TGT Natural Science Mock Test - 3 - Question 25

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 25

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 26

 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 26

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 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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