CAPF (AC) 2022 (Paper-1) (Question 1-50)

Total Questions: 50

1. Which one of the following is the difference of the sum of cubes of first ten natural numbers and the sum of squares of first ten natural numbers?

(a) 2400
(b) 2640
(c) 2880
(d) 2000

Correct Answer: (b) 2640

Solution:

2. A person buys an item from a shop for which the shopkeeper offers a discount of 10% on the marked price. The person pays using an e-wallet which gives 10% cash back. Which one of the following is the value of effective discount?

(a) 20%
(b) 18%
(c) 19%
(d) 21%

Correct Answer: (c) 19%

Solution:

3. A solid spherical ball made of iron is melted and two new balls are made whose diameters are in the ratio of 1 : 2. The ratio of the volume of the smaller new ball to the original ball is

(a) 1 : 3
(b) 1 : 5
(c) 2 : 9
(d) 1 : 9

Correct Answer: (d) 1 : 9

Solution:

4. Suppose a bank gives an interest of 10% per annum compounded annually for a fixed deposit for a period of two years. What should be the simple interest rate per annum if the maturity amount after two years is to remain the same?

(a) 10%
(b) 10.5%
(c) 11%
(d) 12%

Correct Answer: (b) 10.5%

Solution:

5. A runner's average speed reduces by 25% every hour. If he runs 16 km in the first hour and he runs for 3 hours, then what is his overall average speed?

(a) 12 km/hr
(b) 12.33 km/hr
(c) 10.33 km/hr
(d) 13 km/hr

Correct Answer: (b) 12.33 km/hr

Solution:

6. Trough and ridge are

(a) elongated area of low pressure and of high pressure respectively
(b) elongated areas of low pressure
(c) elongated areas of high pressure
(d) elongated area of high pressure and of low pressure
(*)

Correct Answer: (*)

Solution:Trough and ridge are elongated area of low pressure and of high pressure respectively and they related to Weather Forecast.

Trough - Elongated area of relatively low pressure extending from the centre of a region of low pressure.

Ridge - Elongated area of relatively high pressure extending from centre of a high pressure region.

7. The boundary layer of the forest at which the energy exchange occurs and some insolation is returned directly to space is

(a) forest floor
(b) forest soil
(c) forest canopy
(d) forest litter

Correct Answer: (c) forest canopy

Solution:The boundary layer of the forest at which the energy exchange occurs and some insolation is returned directly to to space is Forest Canopy.

Insolation - Incoming Solar Radiation.

8. The organisms that prefer high salt concentration habitats refer to as

(a) alkaliphiles
(b) calcifuges
(c) halophiles
(d) nitrophiles

Correct Answer: (c) halophiles

Solution:The organisms that prefer high salt concentration habitats refer to as Halophiles.

Halophiles are organisms that live in extremely salty environments. The name 'halophile' means 'salt-loving' in Greek. Halophiles are all microorganisms. Most of them are bacteria, while some are very primitive eukaryotes. Eukaryotes are more complex organisms with a nucleus and membrane-bound organelles.

Alkaliphiles - They love alkaline environment grow best in condition above pH 1.

Calcifuges - A plant that is not suited to calcareous soil.

Nitophiles - Plant that grow in soil rich in nitrates.

9. Which one of the following is not an operating system?

(a) MS-Windows
(b) Linux
(c) Ubuntu
(d) MS-Excel

Correct Answer: (d) MS-Excel

Solution:Ms Excel is not an Operating System. Microsoft Excel is a spreadsheet which features calculation or computation capabilities, graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications. Excel forms part of the Microsoft Office suite of software.

An operating system (OS) is system software that manages computer hardware, software resources, and provides common services for computer programs. MS-Windows, Linux and Ubuntu are the Operating System.

10. Which one of the following protocols is not an application layer of the TCP/IP model?

(a) FTP
(b) HTTP
(c) DNS
(d) IP

Correct Answer: (d) IP

Solution:IP- is not an application layer of TCP/IP model. This layer uses a number of protocols, the main among which are as follows

File Transfer Protocol, FTP -

It is a client-server based protocol for transfer of files between client and server over the network.

Hyper Text Transfer Protocol, HTTP -

It is the underlying protocol for world wide web. It defines how hypermedia messages are formatted and transmitted.

Domain Name System, DNS -

It is a naming system for devices in networks. It provides services for translating domain names to IP addresses.

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CAPF (AC) 2022 (Paper-1) (Question 1-50)

1. Which one of the following is the difference of the sum of cubes of first ten natural numbers and the sum of squares of first ten natural numbers?

2. A person buys an item from a shop for which the shopkeeper offers a discount of 10% on the marked price. The person pays using an e-wallet which gives 10% cash back. Which one of the following is the value of effective discount?

3. A solid spherical ball made of iron is melted and two new balls are made whose diameters are in the ratio of 1 : 2. The ratio of the volume of the smaller new ball to the original ball is

4. Suppose a bank gives an interest of 10% per annum compounded annually for a fixed deposit for a period of two years. What should be the simple interest rate per annum if the maturity amount after two years is to remain the same?

5. A runner's average speed reduces by 25% every hour. If he runs 16 km in the first hour and he runs for 3 hours, then what is his overall average speed?

6. Trough and ridge are

7. The boundary layer of the forest at which the energy exchange occurs and some insolation is returned directly to space is

8. The organisms that prefer high salt concentration habitats refer to as

9. Which one of the following is not an operating system?

10. Which one of the following protocols is not an application layer of the TCP/IP model?

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