Psa Pp Quantitative Reasoning 06

Material downloaded from http://myCBSEguide.com and http://onlineteachers.co.in

Portal for CBSE Notes, Test Papers, Sample Papers, Tips and Tricks

PSA Practice Paper 06

Class-09 Quantitative Reasoning

1. Every stop watch in the science laboratory of Kalash has an alarm as shown, except

one. The teacher asked Kalash to set time in the last watch. What time should Kalash

set to maintain the pattern?

(a) 5:19

(b) 5:00

(c) 5:31

(d) 6:00

2. The picture above represents 4,250 apples. How many apples does each stand for?

(a) 500

(b) 400

(c) 450

(d) 625

3. Complete the given series.

(a) 36

(b) 32

(c) 30

(d) 34

(Questions 04-05) How many additional crates of Sprite does Ali need to but so that he

has the same number of crates of Limca?



Drinks Crates sold

Limca

Coke

Sprite

Pepsi

Mirinda

Key: = 3 crates

(a) 3

(b) 1.5

(c) 2

(d) 2.5

4. If A=3 and the next letter of the alphabet is the next multiple of 3, what is the total

value of NOSE?

(a) 159

(b) 112

(c) 169

(d) 135

5. In a school a group dance was organized. The

students stood as per their allotted numbers. One

student was found missing in the front row. You

have to find out what number should come in the

blank circle so that the student can be called in?

(a) 6

(b) 16

(c) 5

(d) 0

(Questions 06-07) The figure below shows the proportion of incoming and outgoing solar

radiation.



6. Approximately what percent of solar radiation is absorbed by the earth?

(a) 70

(b) 50

(c) 40

(d) 170

7. What fraction of radiation emitted by the earths surface goes directly back to the

space?

(a) 0.08

(b) 0.04

(c) 14

(d) 40

8. Six students participated in a 400-metre race.

Ram finished after Amar and after 2 other students.

Amar finished after Sameer.

Firoz finished before Sameer.

Vinod finished before Hari.

Who came fifth?

(a) Vinod

(b) Ram

(c) Amar

(d) Firoz

9. Indian electricity prices have risen from Rs. 6.4 to Rs. 6.5 per unit. Arvis factory

expected to use 600 units in the next billing period. He installed solar panels at the

Start of that period. This reduced his electricity usage by 90%.

How much did Arvis bill increase?

(a) Rs. 6

(b) Rs. 38

(c) Rs. 39

(d) Rs. 54



10. Badhrak has standard pack of 52 playing cards. He removes the king of clubs, the four

of spades, and all the aces. He then draws a card at random.

Which of the following is it most likely to be?

(a) A diamond

(b) A club

(c) A king

(d) A spade

(Questions 11-14) Read the following passage and answer the questions that follow:

In 2009, swine flu spread quickly around the world, become dying down in 2010. This type

of global outbreak is known as a pandemic. The virus was first identified in Mexico in April

2009. It spread rapidly from country to country because it was a new type of flu virus that

few people had full resistance to.

Like any other flu, swine flu is an extremely contagious viral infection spread through the

air and impacts the respiratory system. Graph in figure 1 shows the generation time for

influenza (the time from one infection to the next). On an average it is only 2 days. The

typical incubation period (the time between infection and appearance of symptom) for

influenza is 1-4 days. Adults shed influenza virus from the day before symptoms begin.

The number of reported cases of swine flu in X country during last five years is depicted in



11. What was the main reason of fast spread of swine flu across countries?

(a) Poor resistance among people

(b) Virus as the causal agent

(c) Swine as a vector

(d) Spread through air

12. On the basis of figure 1, after how many days of the onset, the infectivity decreases

rapidly?

(a) Day 3-4

(b) Day 5-6

(c) Day 1

(d) Day 10

13. According to figure 2, the highest number of swine flu cases between 2009 and 2010

was approximately

(a) 1,000

(b) 5,000

(c) 150

(d) 100

14. Why is isolating patients not very effective in fly?

(a) Infection spreads even before symptoms appear

(b) People in contact develop resistance against the virus

(c) Patients develop respiratory infection

(d) Patients do not feel comfortable in isolation

(Questions 15-18) Read the following passage and answer the questions that follow:

A researcher analyzed sample of ocean sediments from various depths, to collect

information about the concentration of chemicals like ions of Sulphur and iron, and

dissolved gases. He started from the top surface of the sediment or bottom of the sea level

(0 cm). After laboratory analysis, he recorded observations as shown in the following table.

He chose the unit of concentration as parts per million (ppm).

Depth

(cm)

pH Concentration in sediment (ppm)

Sulphate Sulphide Ferric Ferrous Oxygen Carbon Dioxide

0 7.0 6.0 0.0 4.0 1.0 2.0 1.0

5 6.5 4.0 2.0 3.0 1.5 1.0 1.5

10 6.0 3.5 3.5 2.0 2.0 0.5 2.0

15 5.5 3.5 3.8 1.8 3.5 0.5 3.0

20 5.0 3.0 4.0 1.5 4.0 0.0 1.0



Apart from chemicals he also estimated pH value to determine hydrogen ion concentration.

Following scale represents the pH scale used to determine acidity of a solution.

15. The concentration of which of the following is constant after depths of 10 cm or more?

(a) Oxygen

(b) Ferric iron

(c) Carbon dioxide

(d) sulfide

16. Considering the trend of pH, what pH can be detected at a depth of 30 cm?

(a) 4.0

(b) 6.0

(c) 3.0

(d) 2.0

17. A group of microorganism thrives under low concentrations of 2Fe + , high

concentrations of 2O , and a neutral ph. At which of the following depths can the researcher find this microorganism?

(a) 0 cm

(b) 5 cm

(c) 10 cm

(d) 15 cm

18. The adjoing graph best represents the

relationship between concentration and sediment

depth for

(a) Carbon dioxide

(b) Sulfate ions

(c) Oxygen

(d) Ferrous ions

ANSWERS

option-(a) i.e. first option is correct for all the questions above

Psa Pp Quantitative Reasoning 06

Documents

Transcript of Psa Pp Quantitative Reasoning 06