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SSC CHSL Tier 1 Full Mock Test: Practice Test 09

Question paper with answer key. Selection Pro

Q1. If FLOWER is coded as 6121523518, then GARDEN will be coded as:
  1. 71184514
  2. 711841514
  3. 71174514
  4. 71185514

Answer: (A) 71184514

Letters correspond directly to their alphabetical positions: G(7), A(1), R(18), D(4), E(5), N(14) -> 71184514.

Q2. Select the missing number in the given series: 7, 14, 28, 56, 112, ?
  1. 210
  2. 224
  3. 236
  4. 248

Answer: (B) 224

Each number is multiplied by 2 ($n \times 2$). Next term = $112 \times 2 = 224$.

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: Cardiology : Heart :: Dermatology : ?
  1. Lungs
  2. Bones
  3. Skin
  4. Brain

Answer: (C) Skin

Cardiology is the study of the heart; Dermatology is the study of the skin.

Q4. Select the odd pair from the following:
  1. Dog : Bark
  2. Cat : Meow
  3. Lion : Roar
  4. Horse : Neighing

Answer: (D) Horse : Neighing

The noun form of the sound is used in the first three ('Bark', 'Meow', 'Roar'), whereas 'Neighing' is in the continuous participle form instead of 'Neigh'.

Q5. Pointing to a photograph, a woman says, 'He is the son of the only daughter of my father.' How is the man in the photograph related to the woman?
  1. Brother
  2. Son
  3. Nephew
  4. Father

Answer: (B) Son

The only daughter of the woman's father is the woman herself. Thus, the man in the photograph is her son.

Q6. Statements: I. All apples are fruits. II. Some fruits are sweet. Conclusions: 1. All apples are sweet. 2. Some sweet things are fruits.
  1. Only conclusion 1 follows
  2. Only conclusion 2 follows
  3. Neither conclusion follows
  4. Both conclusions follow

Answer: (B) Only conclusion 2 follows

Statement II ('Some fruits are sweet') converts directly to 'Some sweet things are fruits'. Conclusion 1 does not necessarily follow.

Q7. Which instrument is used to measure atmospheric pressure?
  1. Thermometer
  2. Barometer
  3. Hygrometer
  4. Altimeter

Answer: (B) Barometer

A barometer is used to measure atmospheric pressure.

Q8. Who was the first Vice-President of independent India?
  1. Dr. Rajendra Prasad
  2. Dr. S. Radhakrishnan
  3. V. V. Giri
  4. Zakir Husain

Answer: (B) Dr. S. Radhakrishnan

Dr. Sarvepalli Radhakrishnan served as the first Vice-President of India from 1952 to 1962.

Q9. Which fundamental constitutional right was omitted by the 44th Amendment Act, 1978?
  1. Right to Property
  2. Right to Freedom
  3. Right to Equality
  4. Right against Exploitation

Answer: (A) Right to Property

The 44th Amendment Act removed the Right to Property from fundamental rights and made it a legal right under Article 300A.

Q10. In which state is the famous Sun Temple of Modhera situated?
  1. Odisha
  2. Gujarat
  3. Rajasthan
  4. Madhya Pradesh

Answer: (B) Gujarat

The Modhera Sun Temple is situated in the Mehsana district of Gujarat.

Q11. What is the capital city of Australia?
  1. Sydney
  2. Melbourne
  3. Canberra
  4. Perth

Answer: (C) Canberra

Canberra is the capital city of Australia.

Q12. Which element is added to natural rubber in the process of vulcanization?
  1. Carbon
  2. Sulfur
  3. Phosphorus
  4. Silicon

Answer: (B) Sulfur

Sulfur is added during vulcanization to improve the elasticity and strength of rubber.

Q13. If $x + \frac{1}{x} = 6$, find the value of $x^2 + \frac{1}{x^2}$:
  1. 32
  2. 34
  3. 36
  4. 38

Answer: (B) 34

$x^2 + \frac{1}{x^2} = \left(x + \frac{1}{x}\right)^2 - 2 = 6^2 - 2 = 36 - 2 = 34$.

Q14. Two numbers are in the ratio 4 : 5. If their HCF is 8, find their LCM:
  1. 120
  2. 140
  3. 160
  4. 180

Answer: (C) 160

LCM = $a \times b \times \text{HCF} = 4 \times 5 \times 8 = 160$.

Q15. A sum of money doubles itself in 8 years at simple interest. What is the rate of interest per annum?
  1. 10%
  2. 12%
  3. 12.5%
  4. 15%

Answer: (C) 12.5%

If Principal = $P$, Interest = $P$ in 8 years. Rate = $\frac{100}{8} = 12.5\%$.

Q16. The diameter of a sphere is 14 cm. Find its surface area ($ \pi = \frac{22}{7}$):
  1. 576 cm²
  2. 616 cm²
  3. 654 cm²
  4. 720 cm²

Answer: (B) 616 cm²

Radius $r = 7\text{ cm}$. Surface area = $4\pi r^2 = 4 \times \frac{22}{7} \times 49 = 616\text{ cm}^2$.

Q17. A motorboat travels at 15 km/h in still water. If the speed of the current is 3 km/h, find the time taken to travel 36 km downstream:
  1. 1.5 hours
  2. 2 hours
  3. 2.5 hours
  4. 3 hours

Answer: (B) 2 hours

Downstream speed = $15 + 3 = 18\text{ km/h}$. Time taken = $\frac{36}{18} = 2\text{ hours}$.

Q18. If $\sec \theta + \tan \theta = 3$, then the value of $\sec \theta - \tan \theta$ is:
  1. 1/3
  2. 1/2
  3. 3
  4. 2/3

Answer: (A) 1/3

Since $\sec^2 \theta - \tan^2 \theta = 1$, $(\sec \theta + \tan \theta)(\sec \theta - \tan \theta) = 1$. Thus, $\sec \theta - \tan \theta = 1/3$.

Q19. A shopkeeper sells a product for ₹540 after giving a discount of 10%. Find the marked price of the product:
  1. ₹580
  2. ₹600
  3. ₹620
  4. ₹650

Answer: (B) ₹600

Marked Price = $\frac{540}{0.90} = ₹600$.

Q20. Select the correctly spelt word:
  1. Nessasary
  2. Necessary
  3. Necassary
  4. Neccessary

Answer: (B) Necessary

'Necessary' (single 'c', double 's') is the correct spelling.

Q21. Select the synonym of the given word: BENEVOLENT
  1. Kind
  2. Cruel
  3. Malevolent
  4. Selfish

Answer: (A) Kind

'Benevolent' means well-meaning and kindly; 'Kind' is synonymous.

Q22. Select the antonym of the given word: ARROGANT
  1. Humble
  2. Proud
  3. Haughty
  4. Insolent

Answer: (A) Humble

'Arrogant' means having an exaggerated sense of one's importance; 'Humble' is its direct antonym.

Q23. Identify the segment in the sentence which contains a grammatical error: Scarcely had I reached the station than the train left.
  1. Scarcely had I
  2. reached the station
  3. than the train
  4. left

Answer: (C) than the train

'Scarcely' must be paired with 'when' instead of 'than'. 'No sooner' takes 'than'.

Q24. Select the most appropriate idiom for the given meaning: 'To be in high spirits'
  1. On cloud nine
  2. Under the weather
  3. At sea
  4. Down in the dumps

Answer: (A) On cloud nine

'On cloud nine' means extremely happy or in high spirits.

Q25. Select the option that can be used as a one-word substitute for: 'A life history of a person written by himself'
  1. Biography
  2. Autobiography
  3. Bibliography
  4. Memoir

Answer: (B) Autobiography

An 'Autobiography' is an account of a person's life written by that person.