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SSC CHSL Tier 1 Full Mock Test: Practice Test 01

Question paper with answer key. Selection Pro

Q1. If CAT is coded as 24, and DOG is coded as 26, then PIG will be coded as:
  1. 32
  2. 34
  3. 36
  4. 38

Answer: (A) 32

Sum of positional values: P(16) + I(9) + G(7) = 32.

Q2. Select the missing number from the given series: 7, 10, 16, 25, 37, ?
  1. 52
  2. 50
  3. 55
  4. 48

Answer: (A) 52

Differences are +3, +6, +9, +12. Next difference is +15, so 37 + 15 = 52.

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: Nepal : Kathmandu :: Bhutan : ?
  1. Thimphu
  2. Dhaka
  3. Colombo
  4. Male

Answer: (A) Thimphu

Thimphu is the capital of Bhutan, just as Kathmandu is the capital of Nepal.

Q4. Point A is 5 m West of Point B. Point B is 4 m North of Point C. Point D is 5 m East of Point C. What is the distance between Point A and Point D?
  1. 4 m
  2. 5 m
  3. 9 m
  4. 10 m

Answer: (A) 4 m

Points form a rectangle; the distance between A and D is equal to BC, which is 4 m.

Q5. Find the odd one out among the given options:
  1. Copper
  2. Iron
  3. Brass
  4. Aluminum

Answer: (C) Brass

Brass is an alloy, while the others are pure metallic elements.

Q6. In a row of 40 students, A is 15th from the left end. What is A's position from the right end?
  1. 25th
  2. 26th
  3. 24th
  4. 27th

Answer: (B) 26th

Position from right = (Total students - Position from left) + 1 = (40 - 15) + 1 = 26th.

Q7. Which fundamental right in the Indian Constitution guarantees protection against untouchability?
  1. Article 15
  2. Article 16
  3. Article 17
  4. Article 18

Answer: (C) Article 17

Article 17 of the Indian Constitution abolishes untouchability.

Q8. Who among the following was the founder of the Brahmo Samaj?
  1. Swami Dayananda Saraswati
  2. Raja Ram Mohan Roy
  3. Swami Vivekananda
  4. Ishwar Chandra Vidyasagar

Answer: (B) Raja Ram Mohan Roy

Raja Ram Mohan Roy founded the Brahmo Samaj in 1828.

Q9. Which layer of Earth's atmosphere contains the ozone layer?
  1. Troposphere
  2. Stratosphere
  3. Mesosphere
  4. Thermosphere

Answer: (B) Stratosphere

The ozone layer is located in the Stratosphere.

Q10. What is the chemical symbol for Gold?
  1. Ag
  2. Au
  3. Fe
  4. Hg

Answer: (B) Au

The chemical symbol for Gold is Au (derived from Latin 'Aurum').

Q11. Which instrument is used to measure electric current?
  1. Voltmeter
  2. Ammeter
  3. Barometer
  4. Galvanometer

Answer: (B) Ammeter

An ammeter is used to measure electric current in a circuit.

Q12. Who was the first Governor-General of independent India?
  1. Lord Mountbatten
  2. C. Rajagopalachari
  3. Dr. Rajendra Prasad
  4. Jawaharlal Nehru

Answer: (A) Lord Mountbatten

Lord Mountbatten served as the first Governor-General of independent India.

Q13. If 15% of a number is 45, what is 40% of that number?
  1. 100
  2. 120
  3. 140
  4. 160

Answer: (B) 120

Number = (45 / 15) * 100 = 300. 40% of 300 = 120.

Q14. A shopkeeper sells an item for ₹480 at a loss of 20%. To gain 20%, at what price should he sell it?
  1. ₹600
  2. ₹640
  3. ₹720
  4. ₹800

Answer: (C) ₹720

CP = 480 / 0.8 = 600. New SP for 20% gain = 600 * 1.2 = ₹720.

Q15. Find the simple interest on ₹8000 at 5% per annum for 3 years:
  1. ₹1000
  2. ₹1200
  3. ₹1400
  4. ₹1600

Answer: (B) ₹1200

SI = (P * R * T) / 100 = (8000 * 5 * 3) / 100 = ₹1200.

Q16. A train 150 m long passes a telegraph pole in 9 seconds. The speed of the train in km/h is:
  1. 50 km/h
  2. 60 km/h
  3. 66 km/h
  4. 75 km/h

Answer: (B) 60 km/h

Speed = 150 / 9 m/s = (150 / 9) * (18 / 5) = 60 km/h.

Q17. If a + b = 8 and ab = 15, then the value of a³ + b³ is:
  1. 152
  2. 172
  3. 192
  4. 212

Answer: (A) 152

a³ + b³ = (a + b)³ - 3ab(a + b) = 8³ - 3(15)(8) = 512 - 360 = 152.

Q18. The average of 5 numbers is 20. If one number is excluded, the average becomes 18. The excluded number is:
  1. 24
  2. 26
  3. 28
  4. 30

Answer: (C) 28

Sum of 5 numbers = 100. Sum of 4 numbers = 72. Excluded number = 100 - 72 = 28.

Q19. Find the perimeter of a rectangle whose length is 12 cm and diagonal is 13 cm:
  1. 30 cm
  2. 34 cm
  3. 36 cm
  4. 40 cm

Answer: (B) 34 cm

Breadth = √(13² - 12²) = √(169 - 144) = 5 cm. Perimeter = 2(12 + 5) = 34 cm.

Q20. Select the correctly spelt word:
  1. Recieve
  2. Receive
  3. Receve
  4. Recievee

Answer: (B) Receive

'Receive' is the correct spelling.

Q21. Select the synonym of the given word: BENIGN
  1. Harsh
  2. Kind
  3. Hostile
  4. Severe

Answer: (B) Kind

Benign means gentle, mild, or kind.

Q22. Select the antonym of the given word: ARTIFICIAL
  1. Synthetic
  2. Natural
  3. False
  4. Unreal

Answer: (B) Natural

'Natural' is the direct opposite of 'Artificial'.

Q23. Identify the segment in the sentence which contains a grammatical error: He do not know how to swim in deep water.
  1. He do not
  2. know how
  3. to swim
  4. in deep water

Answer: (A) He do not

Third-person singular 'He' takes 'does not' instead of 'do not'.

Q24. Select the most appropriate idiom for the given meaning: 'To face a difficult situation with courage'
  1. Bite the bullet
  2. Burn the midnight oil
  3. Spill the beans
  4. Cry over spilt milk

Answer: (A) Bite the bullet

'Bite the bullet' means facing a difficult or unpleasant situation bravely.

Q25. Select the option that can be used as a one-word substitute for: 'A person who looks at the bright side of things'
  1. Pessimist
  2. Optimist
  3. Atheist
  4. Pacifist

Answer: (B) Optimist

An 'Optimist' is a person who tends to be hopeful and looks at the positive side.