Explore topic-wise InterviewSolutions in Current Affairs.

This section includes 7 InterviewSolutions, each offering curated multiple-choice questions to sharpen your Current Affairs knowledge and support exam preparation. Choose a topic below to get started.

1.

The rod shown is in equilibrium position. Find stress in the string. A. `(mg cos theta)/(A)`B. `(mg cos theta)/(A)`C. `(mg cot theta)/(2A)`D. `(mg sin theta)/(A)`

Answer» `mgxx(l)/(2) cos theta=Txxlsin theta`
2.

A square metal plate with a hole is at temperature `theta` is present on smooth horizontal surface. Point `P & C` are marked on the plate, where C is centre of mass of the plate with the hole shown. When temperature of the plate is increased then the point. A. P-shifts towards leftB. P shifts towards rightC. C shifts towards leftD. C shifts towards right

Answer» Seperation between points on plate increases due to thermal expansion.
centre of mass will not move without external force.
3.

A block of mass 2kg is travelling due east with velocity of 4m/s. what is the magnitude of momentum of B as seen from centre of mass frame of reference (in kg m/s).A. `(2g)/(5)`B. `(15)/(7)`C. `(60)/(7)`D. None of these

Answer» `V_("cm")=(3xx1-4xx4)/(1+4)=(-13)/(5)`
Momentum of B w.r.t. cm`=4[4-(13)/(5)]=(28)/(5)`
4.

While measuring diameter of a wire using a screw gauge the main scale reading is `7mm` and zero of circular scale is `35` divisions above the reference line. If the screw gauge has a zero error of `-0.003cm`, the correct diameter of the wire is (given least count `=0.001cm`)A. `0.735cm`B. `0.732cm`C. `0.738 cm`D. `7.38 cm`

Answer» Correct Answer - C
`diameter=0.7+(0.035+0.003)=0.738cm`
5.

Assertion `:-` To observe the motion of planets, the sun may be assumed to be an inertial frame. Reason `:-` For practical purpose a frame of reference may be considered as inertial if it’s acceleration is negligible `w.r.t.` the acceleration of the object to be observed.A. If both Assertion & Reason are True & the Reason is a correct explanation of the Assertion.B. If both Assertion & Reason are True but Reason is not a correct explanation of the Assertiion.C. If Assertion is True but the Reason is False.D. If both Assertion & Reason are False

Answer» Correct Answer - A
6.

Electrical resistance of certain materials, known as superconductors, changes abruptly from a nonzero value of zero as their temperature is lowered below a critical temperature `T_(C) (0)`. An interesting property of super conductors is that their critical temperature becomes smaller than `T_(C) (0)` if they are placed in a magnetic field, i.e., the critical temperature `T_(C) (B)` is a function of the magnetic field strength B. The dependence of `T_(C) (B)` on B is shown in the figure. . In the graphs below, the resistance R of a superconductor is shown as a function of its temperature T for two different magnetic fields `B_1`(solid line) and `B_2` (dashed line). If `B_2` is larget than `B_1` which of the following graphs shows the correct variation of R with T in these fields?A. B. C. D.

Answer» Correct Answer - B
7.

Electrical resistance of certain materials, known as superconductors, changes abruptly from a nonzero value of zero as their temperature is lowered below a critical temperature `T_(C) (0)`. An interesting property of super conductors is that their critical temperature becomes smaller than `T_(C) (0)` if they are placed in a magnetic field, i.e., the critical temperature `T_(C) (B)` is a function of the magnetic field strength B. The dependence of `T_(C) (B)` on B is shown in the figure. . A superconductor has `T_(C) (0) = 100 K`. When a magnetic field of 7.5 Tesla is applied , its `T_(C)` decreases to 75 K. For this material one can difinitely say that whenA. `B=5 "Tesla" , T_(c)(B)=80 K`B. B=5 Tesla, `75 k lt T_(c)(B) lt 100 K`C. B=5 Tesla, `75 k lt T_(c)(B) lt 100 k`D. `B=10 "Tesla" , T_(c)(B)=70 K`

Answer» Correct Answer - B
8.

A 100.0mL dilute solution of `Ag^(+)` is electrolysed for 15.0 minutes with a current of 1.25mA and the silver is removed completely. What was the initial`[Ag^=]`?A. `2.32xx10^(-1)M`B. `2.32xx10^(-4)M`C. `2.32xx10^(-5)M`D. `1.17xx10^(-4)M`

Answer» Correct Answer - D
`m=(108)/(96500)xx1.25xx10^(-3)xx15xx60`
`(m)/(108)xx1.17xx10^(-5),[Ag^(+)]=(1.17xx10^(5))/(100)xx1000`
`=1.17xx10^(-4)M`
9.

What is the oxidation number of iodine in `Kl_(3)`?A. `-1`B. `+1`C. `-(1)/(3)`D. `+(1)/(3)`

Answer» Correct Answer - C
`Kl_(3)toK^(+)+l_(3)^(-)`
`therefore` The oxidation number iodine in `l_(3)^(-)` is `-(1)/(3)`
10.

The specific conductivity of a saturated solution of `Kl_(3)` is `4.59xx10^(-6)"ohm"^(-1)"cm"^(-1)` and its molar conductanc eis `"1.53 ohm"^(-1)"cm"^(2)"mol"^(-1)`. The `K_("sp")` of `Kl_(3)` will beA. `4xx10^(-12)`B. `27xx27xx10^(-9)`C. `9xx10^(-6)`D. `4xx10^(-4)`

Answer» Correct Answer - C
`KI_(3) hArr K^(+)I_(3)^(-)`
`K_("sp")=S^(2)`
`lambda_(m)=(Kxx1000)/(S) rArr S=(4.59xx10^(-6)xx1000)/(1.53)`
`S=3xx10^(-3),K_("sp")=9xx10^(-6)`
11.

The relative density of material of a body is found by weighting it first in air and then in water . If the weight in air is `( 5.00 +- 0.05) N` and the weight in water is `(4.00 +- 0.05) N`. Find the relative density along with the maximum permissible percentage error.A. `5.0+-11%`B. `50+-1%`C. `5.0+-6%`D. `1.25+-5%`

Answer» Correct Answer - A
Weight in air `(5.00+0.05)N`
Weight in water`=(4.00+-0.05)N`
Loss of weight in water `=(1.00+-0.1)N`
`now relative density`=(weight i n air)/(weight loss i n water)`
i.e. `R.D=(5.00+-0.05)/(1.00+-0.1)`
Now relative density with max permissible error
`=(5.00)/(1.00)+-((0.5)/(5.00)+(0.1)/(1.00))xx100=5.0+-(1+10)%`
`=5.0+-11%`
12.

According to Ellingham diagram the oxidation reaction of carbon and carbon monoxide may be used to reduce which one of the following oxides at the lowest temperature?A. `A1_(2)O_(3)`B. `Cu_(2)O`C. `MgO`D. `ZnO`

Answer» Correct Answer - B
Because `DeltaG^(@)` for reduction of rest three oxides `[A1_(2)O_(3),ZnO` and `MgO]` are less negative than that of `Cu_(2)O` at lower temperature.
13.

The mass of a non-volatile solute (Molar mass 40) which should be dissolved in `114g` octance to reduce its vapour pressure to `80%` is `2xg`. Find the value of `x`

Answer» Correct Answer - 5
5
`P_(S)=(80/100)P^(0),w=?,m=40`
`W=114g,M_(C_(s)H_(18))=114`
`(P^(0)-P_(s))/(P_(s))=(wxxM)/(mxxW)`
Or `(P^(@)-(80/100)P^(@))/((80/100)P^(@))=(wxx114)/(40xx114)`
`w=10g`
14.

The correct option regarding size of orbitals is :A. `2p gt 3p gt 4pgt 5p`B. `2p=3p lt4p=5p`C. `2p lt 3plt 4p lt 5p`D. `2p=3p=4p=5p`

Answer» Correct Answer - C
Value of n `uarr` size of orbital `uarr`
15.

which one is correct order of the size of the iodine speicies ?A. `I^(-) gt I gt I^(+)`B. `I gt I^(-) gt I^(+)`C. `I^(+) gt I^(-) gt I`D. `I gt I^(+) gt I^(-)`

Answer» Correct Answer - A
Size `M^(-) gt M gt M^(+)`
16.

Which maps are known as Survey of India maps?

Answer»

Topographical maps prepared in India.

17.

Name the British surveyor who recorded the correct measurements of the Himalayan mountain ranges.

Answer»

Col. George Everest

18.

Who gave leadership to the preparation of India’s topographical maps?

Answer»

Col. William Lambton began in 1802 and completed over a period of 50 years.

19.

Survey of India uses different scales for the preparation of topographical maps. Which are they?

Answer»

In India, topographical maps are prepared in scales 1:1000000, 1:250000, 1:50000 and 1:25000 for various purposes.

20.

As a following up activity of the former, prepare a short note on ‘Timely application of the fiscal policy during Inflation and Deflation’, by the government.

Answer»

The tax rate is increased when there is inflation. As a result of this the purchasing power of the people falls. Tax is reduced at the time of deflation. This will increase the purchasing power of the people. As a result the demand for products increases. This results in an increase in the price of products. The timely application of fiscal policy helps the government to overcome such situations.

21.

Which are the topographical maps prepared in the following scales? 1:10000001:250000 1:50000

Answer»

The million sheets covering 4° latitudinal and 4° longitudinal extent are prepared in the scale 1:1000000. 

Degree sheets covering 1° latitudinal 1° longitudinal extent are prepared in the scale 1:250000. 

Degree sheets are divided into 16 parts having 15 minutes latitudinal and 15 minutes longitudinal extent. These sheets are prepared in the scale 1:50000.

22.

Topographical maps are prepared in ………. scale (i) large (ii) small (iii) medium

Answer»

Correct answer is (i) large 

23.

A fold mountain is a type of landform that is created when two crustal plantsA. ConvergeB. CollideC. DivergeD. DE collide

Answer» Correct Answer - B
24.

Himalayas were formed approximatelyA. 50 years agoB. 5000 years agoC. 50 million years agoD. 50 billion years ago

Answer» Correct Answer - C
25.

Who erected famous Khajuraho Temples?1. Bhoj2. Harshwardhan3. Chandel4. Kalchuri

Answer» Correct Answer - Option 3 : Chandel

The correct answer is Chandel.

  • Chandel Rulers erected Khajuraho temples.

  • Khajuraho temples were erected between 950 1000 AD by Chaldel Dynasty.
    • Khajuraho is famous for its 85 Hindu and Jain temples.
    • It was named as “City of Gods” given by Muslim historian Abu Rihan Alberuni.
    • Nanuk started Chandel Dynasty at 831 BC.
    • Their dynasty was situated in the Bundelkhand region which was also known as Jejakbhukti in ancient times.
    • Dhaang constructed the famous Kandariya Mahadev, Jinnanath, Vishwanath, and Vaidhyanath Temple in Khajuraho. 

  • King Bhoj ruled Parmar Dynasty from 1000 to 1055 BC.
    • King Bhoj wrote Saraswati Kanthabharan.
    • King Bhoj built Saraswati Mandir in Dhar which is known as Bhojshala today.
    • He also built the famous Bhojtal of Bhopal.
  • Harshwardhan ruled the Vardhan dynasty, he sat on the throne at age of 16 in 606 AD after the death of his brother Rajyavardhan.
    • Famous Chinese traveler Hwansang visited India in his time period.
    • He ruled till 647 BC.
  • Kokkal established the Kalchuri dynasty.
    • His capital was Tripuri. They ruled from 550 AD to 1740 AD.
    • Gangeydev was the famous King of Kalchuri dynasty, he was nicknamed “Vikrmaditya”.
26.

Where is Padmanabhaswamy Temple located?A. Kedarnath, UttarakhandB. Mumbai, MaharashtraC. Hyderabad, Andhra PradeshD. Thiruvananthapuram, Kerala

Answer» Correct Answer - A
27.

Where is Khajuraho Temples located?A. Ujjain, Madhya PradeshB. Guwahati, AssamC. Chhatarpur, Madhya PradeshD. Varanasi, Uttar Pradesh

Answer» Correct Answer - C
28.

The Slient Valley National Park is located at which district of keralaA. WayandB. KottayamC. IdukkiD. Palakkad

Answer» Correct Answer - D
29.

Silicon Valley is famous for?(A) Iron & steel industry (B) Aluminium Industry(C) High technology industry (D) Agro-Based industry

Answer»

Silicon Valley is famous for High technology industry. 

30.

A binary file "Book.dat" has structure [BookNo, Book_Name, Author, Price]

Answer» import pickle

def createFile():
    file = open("book.dat","ab")
    BookNo = int(input("Enter book number: "))
    Book_Name = input("Enter book Name: ")
    Author =input("Enter author: ")
    Price = int(input("Enter price: "))
    record = [BookNo, Book_Name, Author, Price]
    pickle.dump(record, file)
    file.close()
    
def countRec(Author):
    file = open("book.dat","rb")
    count = 0
    try:
        while True:
            record = pickle.load(file)
            if record[2]==Author:
                count+=1
    except EOFError:
        pass
    return count
    file.close()

#To test working of functions
def testProgram():
    while True:
        createFile()
        choice = input("Add more record (y/n)? ")
        if choice in 'Nn':
            break
    Author = input('Enter author name to search: ')
    n = countRec(Author)
    print("No of books are",n)

testProgram()
31.

Define Endangered species with examples (at least one from plants and one from animals) (with names).

Answer»

Endangered species:-

Species endanger of extinction and are not likely to survive if factors threatening their extinction continue.

eg. Black Dear, Tiger, Aligator (animals).

Bentinckia Nocobarica (Plant).

32.

A binary file “Book.dat” has structure [BookNo, Book_Name, Author, Price]. i. Write a user defined function CreateFile() to input data for a record and add to Book.dat . ii. Write a function CountRec(Author) in Python which accepts the Author name as parameter and count and return number of books by the given Author are stored in the binary file “Book.dat”

Answer»

Using of any correct code giving the same result is also accepted.

import pickle 

def createFile(): 

fobj=open("Book.dat","ab") 

BookNo=int(input("Book Number : ")) 

Book_name=input("Name :") 

Author = input(“Author: “) 

Price = int(input("Price : "))

rec=[BookNo,Book_Name,Author,Price] 

pickle.dump(rec,fobj) 

fobj.close() 

def CountRec(Author): 

fobj=open("Book.dat","rb") 

num = 0 

try: 

while True: 

rec=pickle.load(fobj) 

if Author==rec[2]: 

num = num + 1 

except: 

fobj.close() 

return num

33.

What is a Homepage?

Answer»

The default (first) page of a website is called a Homepage.

34.

Give any two examples of endangered species.

Answer» Examples of endangered species : (1) Asiatic wild ass (2) Psilotum nudum (3) Osmuda regalis.
35.

A binary file “STUDENT.DAT” has structure (admission_number, Name, Percentage). Write a function countrec() in Python that would read contents of the file “STUDENT.DAT” and display the details of those students whose percentage is above 75. Also display number of students scoring above 75%.

Answer»

import pickle 

def CountRec(): 

fobj=open("STUDENT.DAT","rb") 

num = 0 

try: 

while True: 

rec=pickle.load(fobj) 

if rec[2] > 75: 

print(rec[0],rec[1],rec[2],sep="\t") 

num = num + 1 

except: 

fobj.close() 

return num

36.

Which state government approved mandatory Global Posititioning System (GPS) in all public transport vehicles from June 2015?A. DelhiB. Madhya PradeshC. OdishaD. Maharashtra

Answer» Correct Answer - A
37.

Which one of the following software comes under Open-Source Software category? a. Photoshop b. Ms-Paint c. Linux d. Windows

Answer»

Correct option is c. Linux

38.

Suresh is planning to go on a tracking trip with two of his college friends. Along with base maps and other utility items, which type of GPS receiver would you like to suggest him for his trip?

Answer»

Recreational GPS

39.

How GPS helps in locating vehicles like Ambulance? Explain

Answer»

A vehicle tracking system combines the installation of an electric device in a vehicle, with designed computer software to enable to track vehicle’s location. The GPS tracking device keep server updated about the location of a vehicle. The server maintains a record of these updates.

40.

HTML tag to draw horizontal line :A. <hl>B. <hr>C.<hline>D. None of the above

Answer»

Correct option is b. <hr>

41.

Explain how GPS work?

Answer»

GPS is a system of 30+ navigation satellites circling Earth. We know where they are because they constantly send out signals. A GPS receiver in your phone listens for these signals. Once the receiver calculates its distance from four or more GPS satellites, it can figure out where you are.

42.

The code for inserting an image in an HTML page is &lt;imgsrc=" " alt=" "&gt;. The alt attribute is used for _____

Answer»

specifying alternate text for the image.

43.

Secure data transmission means a) Data is accessible by any unauthorized person during transmission. b) Data can not be accessed by any unauthorized person during transmission. c) Transmission of data happens easily d) Noone can access it

Answer»

Correct option is b) Data can not be accessed by any unauthorized person during transmission.

44.

The correct HTML code to display(P+Q)2 is: a. &lt;SUB&gt;(P+) 2 &lt;/SUB&gt;b. P+Q &lt;SUP&gt; 2 &lt;/SUP&gt;c. ( P + Q) &lt;SUP&gt;2 &lt;/SUP&gt;d. &lt;SUP&gt; (P+Q) 2 &lt;/SUP&gt;

Answer»

Correct option is c. ( P + Q) <SUP>2 </SUP>

45.

The correct HTML code for inserting an image is: a. &lt;img href = "image. gif"&gt;b.&lt;img&gt; image. gif ,/ gif&gt;c. &lt;image src = "image. gif"&gt;d. &lt;img src = "image.gif"&gt;

Answer»

Correct option is c. <image src = "image. gif">

46.

Which HTML tags cause browsers to render text as italics? a. &lt;text style = "italics"&gt;&lt;/text&gt;b. &lt;ital.&gt;&lt;/ital.&gt;c. &lt;i&gt;&lt;/i&gt;d. &lt;b&gt;&lt;/b&gt;

Answer»

Correct option is c. <i></i>

47.

What is the use of disk defragmenter

Answer»

The process of defragmentation moves the data blocks on the hard drive around to bring all the parts of a file together. Defragmentation reduces file system fragmentation, increasing the efficiency of data retrieval and thereby improving the overall performance of the computer.

48.

Consider the following DataFrame, classframeRollnoNameClassSectionCGPAStreamSt11AmanIXE8.7ScienceSt22PreetiXF8.9ArtsSt33KartikeyIXD9.2ScienceSt44LakshayXA9.4CommerceWrite commands to : i. Add a new column ‘Activity’ to the Dataframe ii. Add a new row with values ( 5 , Mridula ,X, F, 9.8, Science)

Answer»

i. classframe[‘Activity’]=[‘Swimming’,’Dancing ’,’Cricket’, ‘Singing’]

ii. classframe.loc[‘St5’]=[1,’Mridula’, ‘X’, ‘F’, 9.8, ‘Science’]

49.

Consider the table STUDENT given below:RollNoNameClassDOBGenderCityMarks1AnandXI6/6/97MAgra4302ChetanXII7/5/94MMumbai4603GeetXI6/5/97FAgra4704PreetiXII8/8/95FMumbai4925SaniyalXII8/10/95MDelhi3606MaakhiyXI12/12/94FDubai2567NehaX8/12/95FMoscow3248NishantX12/6/95MMoscow4291. State the command that will give the output as :NameAnandChetanGeetPreetii. select name from student where class=’XI’ and class=’XII’;ii. select name from student where not class=’XI’ and class=’XII’;iii. select name from student where city=”Agra” OR city=”Mumbai”;iv. select name from student where city IN(“Agra”, “Mumbai”);Choose the correct option:a. Both (i) and (ii).b. Both (iii) and (iv).c. Any of the options (i), (ii) and (iv)d. Only (iii)(2). What will be the output of the following command?Select * from student where gender =”F” order by marks;+(a) RollnoNameClassDOBGenderCityMarks4376PreetiGeetNehaMaakhiyXIIXIXXI8/8/956/5/978/12/9512/12/94FFFFMumbaiAgraMoscowDubai492470324256 (b)RollnoNameClassDOBGenderCityMarks6734MaakhiyNehaGeetPreetiXIXXIXII12/12/948/12/956/5/978/8/95FFFFDubaiMoscowAgraMumbai256324470492(c)GenderMarksFFFF256324470492(d) GenderMarksFFFF492470324256

Answer»

(1) b. Both (iii) and (iv)

(2) b.

RollnoNameClassDOBGenderCityMarks
6
7
3
4
Maakhiy
Neha
Geet
Preeti
XI
X
XI
XII
12/12/94
8/12/95
6/5/97
8/8/95
F
F
F
F
Dubai
Moscow
Agra
Mumbai
256
324
470
492
50.

What are adjusting entries? Why are they necessary for preparing final accounts?

Answer»

Entries which are given outside the trial balance are called adjustment entries, to record those entries a proper treatment is required according to the double-entry system. Here it is to be remembered that all the adjustments given outside the Trial Balance are posted at two places.

Adjustment is generally done for those items which are omitted or entered with the wrong amount and/or recorded under wrong heads. The following are reasons for recording or. incorporating these adjustment entries in preparation of final account.

1. Through these adjustment entries, we come to know the actual figure of profit or loss.

2. Because of these adjusting entries, we can assess the true financial position of an organisation based on accrual basis of accounting.

3. These adjustment entries enable us to records the omitted entries and help in rectifying all those errors.

4. These adjusting entries help in providing depreciation and making different provisions, such as Bad Debts and Depreciation.