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SSC CHSL Tier 1 Full Mock Test: Practice Test 08

Question paper with answer key. Selection Pro

Q1. If MONKEY is coded as 13151411525, then ORANGE will be coded as:
  1. 151811475
  2. 1518114175
  3. 1518114755
  4. 151711475

Answer: (A) 151811475

Letters correspond directly to their positional values in the alphabet: O(15), R(18), A(1), N(14), G(7), E(5) -> 151811475.

Q2. Select the missing number in the given series: 4, 9, 20, 43, 90, ?
  1. 180
  2. 183
  3. 185
  4. 187

Answer: (C) 185

Pattern: $(n \times 2) + 1$, $(n \times 2) + 2$, $(n \times 2) + 3$, $(n \times 2) + 4$... Next term = $(90 \times 2) + 5 = 185$.

Q3. Select the option that is related to the third term in the same way as the second term is related to the first term: Seismograph : Earthquake :: Anemometer : ?
  1. Wind Speed
  2. Rainfall
  3. Atmospheric Pressure
  4. Ocean Current

Answer: (A) Wind Speed

A seismograph measures earthquake intensity; an anemometer measures wind speed.

Q4. Select the odd option among the following:
  1. Gold
  2. Silver
  3. Platinum
  4. Bronze

Answer: (D) Bronze

Bronze is an alloy (copper and tin), whereas Gold, Silver, and Platinum are pure elemental metals.

Q5. In a code language, if 'WATER' is written as 'YCVGT', how will 'FIRE' be written in that code?
  1. HKTG
  2. HKTG
  3. HKTG
  4. HKTG

Answer: (A) HKTG

Every letter is shifted forward by 2 positions (+2). F+2=H, I+2=K, R+2=T, E+2=G -> HKTG.

Q6. Pointing to a man, a woman said, 'His wife is the only daughter of my father.' How is the man related to the woman?
  1. Brother
  2. Husband
  3. Father-in-law
  4. Uncle

Answer: (B) Husband

Only daughter of the woman's father is the woman herself. So, the man's wife is the woman herself. The man is her husband.

Q7. Which of the following Fundamental Rights cannot be suspended even during a National Emergency?
  1. Article 14 and 19
  2. Article 19 and 20
  3. Article 20 and 21
  4. Article 21 and 22

Answer: (C) Article 20 and 21

Articles 20 (Protection in respect of conviction for offenses) and 21 (Protection of life and personal liberty) cannot be suspended during a National Emergency.

Q8. The famous Sun Temple at Konark was built by which king?
  1. Narasimhadeva I
  2. Rajendra Chola
  3. Ashoka
  4. Kharavela

Answer: (A) Narasimhadeva I

The Konark Sun Temple in Odisha was constructed by King Narasimhadeva I of the Eastern Ganga Dynasty.

Q9. Which is the highest peak in India (located within fully Indian-controlled territory)?
  1. Mount Everest
  2. K2 (Godwin-Austen)
  3. Kangchenjunga
  4. Nanda Devi

Answer: (C) Kangchenjunga

Kangchenjunga (8,586 m) in Sikkim is the highest peak in India located completely within undivided Indian territory.

Q10. Which gas is popularly known as 'Laughing Gas'?
  1. Nitrous Oxide
  2. Nitric Oxide
  3. Carbon Monoxide
  4. Sulfur Dioxide

Answer: (A) Nitrous Oxide

Nitrous Oxide ($N_2O$) is commonly referred to as laughing gas.

Q11. Which hormone is responsible for regulating blood sugar levels in the human body?
  1. Thyroxin
  2. Insulin
  3. Adrenaline
  4. Estrogen

Answer: (B) Insulin

Insulin, produced by the pancreas, regulates glucose levels in the bloodstream.

Q12. The Non-Cooperation Movement was launched by Mahatma Gandhi in which year?
  1. 1915
  2. 1919
  3. 1920
  4. 1930

Answer: (C) 1920

Mahatma Gandhi launched the Non-Cooperation Movement in 1920.

Q13. If $x - \frac{1}{x} = 4$, then find the value of $x^3 - \frac{1}{x^3}$:
  1. 52
  2. 64
  3. 76
  4. 82

Answer: (C) 76

$x^3 - \frac{1}{x^3} = \left(x - \frac{1}{x}\right)^3 + 3\left(x - \frac{1}{x}\right) = 4^3 + 3(4) = 64 + 12 = 76$.

Q14. The ratio of the speed of two trains is 4 : 5. If the second train covers 400 km in 4 hours, what is the speed of the first train?
  1. 70 km/h
  2. 75 km/h
  3. 80 km/h
  4. 85 km/h

Answer: (C) 80 km/h

Speed of 2nd train = $400 / 4 = 100\text{ km/h}$. Since ratio = $4 : 5$, $5 \text{ units} = 100 \Rightarrow 1 \text{ unit} = 20$. Speed of 1st train = $4 \times 20 = 80\text{ km/h}$.

Q15. Find the compound interest on ₹10,000 for 2 years at 12% per annum, compounded annually:
  1. ₹2,400
  2. ₹2,544
  3. ₹2,600
  4. ₹2,644

Answer: (B) ₹2,544

Effective CI rate = $12 + 12 + \frac{12 \times 12}{100} = 25.44\%$. CI = $10,000 \times 25.44\% = ₹2,544$.

Q16. The perimeter of a rectangle is 48 cm and its length is twice its breadth. Find its area:
  1. 120 cm²
  2. 128 cm²
  3. 136 cm²
  4. 144 cm²

Answer: (B) 128 cm²

$2(l + b) = 48 \Rightarrow l + b = 24$. Since $l = 2b \Rightarrow 3b = 24 \Rightarrow b = 8\text{ cm}, l = 16\text{ cm}$. Area = $16 \times 8 = 128\text{ cm}^2$.

Q17. If $\tan \theta + \cot \theta = 2$, then the value of $\tan^5 \theta + \cot^5 \theta$ is:
  1. 1
  2. 2
  3. 4
  4. 5

Answer: (B) 2

Since $\tan \theta + \cot \theta = 2$, $\tan \theta = 1$ ($\theta = 45^\circ$). So $1^5 + 1^5 = 2$.

Q18. A shopkeeper allows two successive discounts of 20% and 10% on an item. Find the single equivalent discount percentage:
  1. 28%
  2. 30%
  3. 32%
  4. 35%

Answer: (A) 28%

Equivalent discount = $A + B - \frac{AB}{100} = 20 + 10 - \frac{200}{100} = 28\%$.

Q19. The average score of 5 workers is 60. If one worker's score of 80 is excluded, what is the average score of the remaining workers?
  1. 52
  2. 54
  3. 55
  4. 56

Answer: (C) 55

Total sum = $5 \times 60 = 300$. Remaining sum = $300 - 80 = 220$. New average = $220 / 4 = 55$.

Q20. Select the correctly spelt word:
  1. Privilege
  2. Privilege
  3. Priviledge
  4. Privelege

Answer: (A) Privilege

'Privilege' is the correct spelling.

Q21. Select the synonym of the given word: LETHARGIC
  1. Energetic
  2. Sluggish
  3. Active
  4. Lively

Answer: (B) Sluggish

'Lethargic' means feeling slow, sluggish, or lacking energy.

Q22. Select the antonym of the given word: HARMONY
  1. Peace
  2. Accord
  3. Discord
  4. Unity

Answer: (C) Discord

'Harmony' means agreement or peace; 'Discord' is its direct antonym.

Q23. Identify the segment in the sentence which contains a grammatical error: Each of the boys have completed their homework.
  1. Each of
  2. the boys
  3. have completed
  4. their homework

Answer: (C) have completed

'Each' takes a singular verb. The phrase 'have completed' should be corrected to 'has completed'.

Q24. Select the most appropriate idiom for the given meaning: 'To make matters worse'
  1. Add insult to injury
  2. Hit the nail on the head
  3. Curiosity killed the cat
  4. Once in a blue moon

Answer: (A) Add insult to injury

'Add insult to injury' means to make an already bad situation worse.

Q25. Select the option that can be used as a one-word substitute for: 'A handwriting that cannot be read'
  1. Legible
  2. Illegible
  3. Incorrigible
  4. Inaudible

Answer: (B) Illegible

'Illegible' refers to handwriting or print that is unreadable or hard to read.