Search Previous Year Questions

Find real questions from previous competitive exam papers with answers and solutions.

Browse complete papers
510 matching questions · Page 50
Clear

Question 491

Kolkata Police Constable 2018• Test

Five bells strike at intervals of 3, 5, 7, 8 and 10 seconds How long after they first strike together will they strike together again?

  1. AOption (a)

    12 minutes

  2. BOption (b)

    14 minutes

  3. COption (c)

    16 minutes

  4. DOption (d)

    18 minutes

View answer & explanation

Correct answer

Answer: (a)A.

12 minutes

Explanation not yet available.

Question 492

Kolkata Police Constable 2018• Test

What is the main source of solar energy?

  1. AOption (a)

    Hydrogen and Nitrogen

  2. BOption (b)

    Helium and chlorine

  3. COption (c)

    Hydrogen and Helium

  4. DOption (d)

    Nitrogen and chlorine

View answer & explanation

Correct answer

Answer: (a)A.

Hydrogen and Nitrogen

Explanation not yet available.

Question 493

Kolkata Police Constable 2018• Test

If the ratio of 49 to a number is equal to the ratio of that number to 81, what is that number?

  1. AOption (a)

    3969

  2. BOption (b)

    63

  3. COption (c)

    Indeterminate

  4. DOption (d)

    3963

View answer & explanation

Correct answer

Answer: (a)A.

3969

Explanation not yet available.

Question 494

Kolkata Police Constable 2018• Test

Which of the following ingredients are required to make 'German Silver'?

  1. AOption (a)

    Copper, Zinc, Nickel

  2. BOption (b)

    Copper, Tin, Iron

  3. COption (c)

    Copper, Lead, Nickel

  4. DOption (d)

    Copper, Tin, Lead

View answer & explanation

Correct answer

Answer: (a)A.

Copper, Zinc, Nickel

Explanation not yet available.

Question 495

Kolkata Police Constable 2018• Test

Which gases are responsible for acid rain?

  1. AOption (a)

    SO2 & NO2

  2. BOption (b)

    SO2 & CO2

  3. COption (c)

    NO2 & CO2

  4. DOption (d)

    NO2 & Cl

View answer & explanation

Correct answer

Answer: (a)A.

SO2 & NO2

Explanation not yet available.

Question 496

Kolkata Police Constable 2018• Test

Which number would replace the question mark (?)?

  1. AOption (a)

    13

  2. BOption (b)

    15

  3. COption (c)

    17

  4. DOption (d)

    19

View answer & explanation

Correct answer

Answer: (a)A.

13

Explanation not yet available.

Question 497

Kolkata Police Constable 2018• Test

↑ 9 B Q = $ 2 5 R J δ L 3 @ Y M E 6 8 ⋆ ÷ D F 4 β H 7 θ  

How many numbers are there in the above series which have a symbol immediately before but no letter immediately after$?

  1. AOption (a)

    zero

  2. BOption (b)

    One

  3. COption (c)

    Two

  4. DOption (d)

    Three

View answer & explanation

Correct answer

Answer: (a)A.

zero

Explanation not yet available.

Question 498

Kolkata Police Constable 2018• Test

Which is the 'Manchester of India'?

  1. AOption (a)

    Ahmedabad

  2. BOption (b)

    Nagpur

  3. COption (c)

    Vadodara

  4. DOption (d)

    Indore

View answer & explanation

Correct answer

Answer: (a)A.

Ahmedabad

Explanation not yet available.

Question 499

Kolkata Police Constable 2018• Test

Sumit is sixteenth (16th) from the left and Vipul is eighteenth (18th) from the right in a row of students. If Aman is 11th to the right of Sumit and 3rd to the right of Vipul, what is the number of students?

  1. AOption (a)

    38

  2. BOption (b)

    41

  3. COption (c)

    44

  4. DOption (d)

    46

View answer & explanation

Correct answer

Answer: (a)A.

38

Explanation not yet available.

Question 500

Kolkata Police Constable 2018• Test

If a person travels at a speed of 4 km per hour to reach a place, he is 10 minutes late. Again if speeding 5 km reach 5 minutes earlier. How far will he go?

  1. AOption (a)

    5 km

  2. BOption (b)

    10 km

  3. COption (c)

    12 km

  4. DOption (d)

    4 km

View answer & explanation

Correct answer

Answer: (a)A.

5 km

Explanation not yet available.