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.

Define the term tone of refrigeration.

Answer»

A ton of REFRIGERATION (TR), also called a refrigeration ton (RT), is a unit of POWER USED in some countries (especially in North America) TODESCRIBE the heat-extraction capacity of refrigeration and AIR conditioningequipment. ... A refrigeration ton is approximately equivalent to 12,000 BTU/h or 3.5 kW.

2.

The magnification of convex mirror is m. What is the range of m?

Answer» B RIGHT PAKKA
OK
DONE
3.

A particle witha specific charges is fired with a velocity

Answer» HEY DEAR COMPLETE the question..and then ask....TRY.....
4.

Find the number of seconds in 1 year . Express them in order of magnitude .

Answer»

Hey friend !!!!
____________

we know that

=> 1 MIN = 60 sec
=> 1 hour = 60 min
=> 1 day = 24 HRS
=> 1 week = 7 DAYS
=> 1 year = 52 WEEKS

=> 1 year x 52 weeks/year = 52 weeks
=> 52 weeks x 7 days/week = 364 days
=> 364 days x 24 hrs/day = 8736 hrs
=> 8736 hrs x 60 min/hr = 524,160 min
=> 524,160 min x 60 sec/min = 31,449,600 sec

In general we consider a year to be 365 days and a day to be 24 hrs.
Here is what that would look LIKE.
=> 1 year x 365 day/year = 365 days
=> 365 days x 24 hrs/day = 8760 hrs
=> 8760 hrs x 60 min/hr = 525,600 min
=> 525,600 min x 60 sec/min = 31,536,000 sec

hope it will help you..

5.

The magnification of convex mirror is m.What is the range of m?

Answer»

The IMAGE provided by convex mirrors all have the same descriptions. They are:

Nature: Virtual
Orientation: Erect
Magnification: ALWAYS less than unity
Position: BEHIND the mirror.

Based on the above; the magnification (m) of a convex mirror would have a RANGE from zero to unity.
hope it help youuu :)

6.

Charles woods dispatch is associated with

Answer»

Charles Wood, the President of the Board of CONTROL of the ENGLISH East India Company, had an important effect on spreading English learning and female EDUCATION in India. When in 1854 he sent a DESPATCH to Lord Dalhousie, the then Governor-General of India.[1][2] Wood suggested that primary schools must adopt vernacular languages, high schools must adopt Anglo vernacular language and on college level English medium for education. This is known as Wood's despatch. Vocational and women's education were stressed upon. One of the most favourable steps taken by EIC was to create English class in Indian people to be used as workforce in company's administration.

7.

Change of blade angle with air compressor

Answer»

don't MIND but COMPLETE the QUESTION and ASK again......PLZZ

8.

Calculate the amount of charge on 180 g of water

Answer»

180gms= 10 MOLES

Each WATER molecule has 10 electrons. (8 from the oxygen, one from each HYDROGEN). 1 mole of electrons has a CHARGE of around 96,500 Coulombs. This is referred to as Faraday’s constant. Therefore, 10 moles of electrons would have a total charge of 965,000 Coulombs, ALTHOUGH water has a net charge of 0, since there is one proton to cancel out the charge of each electron.

9.

Calculate molecular mass of sugar in 547.2gm

Answer» Hello Dear.

There is the little mistakes in the QUESTION. We have to find the No. of Molecules, not molecular mass.

Here is the answer---

→→→→→→→→→→

First of all,

Chemical Formula of Sugar = C₁₂H₂₂O₁₁

Molecular mass of the Sugar = 342 gram/mole.

Mass of the Sugar = 547.2 grams.


Using the Formula,

 No. of Molecules = No. of MOLES × AVOGADRO's Number
                             = (547.2/342)  ×  6.022 × 10²³
                             = 1.6 × 6.022 × 10²³
                             = 9.6352 × 10²³ molecules.


∴ No. of molecules in 547.2 grams of Sugar is 9.6352 × 10²³ Molecules.


→→→→→→→→→→


Hope it HELPS.
10.

Characteristics of audio signal classification

Answer»

S/n RATIO is LOW
noise is low

11.

Tell me at least 10 important properties of gravitational force .

Answer»

Hey mate ↪↪

1. Gravitational force is always attractive.
2. Its the weakest force in nature.
3. Its a CONSERVATIVE force.
4. Its a central force.
5. They can be operated over long distances.
6. Its OBEYS inverse square rule.
7. It is directly proportional to the product of the masses of the two bodies.
8. Gravitational force between two bodies does not depend upon the presence of other bodies.
9. Gravitational- force between two bodies is thought to be caused by an exchange of a PARTICLE called graviton.
10. It is a long range force and does not need any intervening medium for its operation.

HOPE IT HELPS YOU.
SOURCE : Class 9 Science TB
BE BRAINLY BY MARKING IT BRAINLIEST.
THANKS !!

12.

A neutron star has a density equal to that of nuclear matter (2.8×10^17 kg m^-3). Assume the star to be spherical, find the radius of the neutron star whose mass is 4.0×10^10 kg (twice the mass of the sun) .

Answer»

Given,
density of neutron STAR,
p = 2.8 \times  {10}^{17} kg \:  {m}^{ - 3}
MASS of neutron star,
m = 4.0 \times  {10}^{10} kg
density(p) is given by,

p =  \frac{m}{v}
p =  \frac{m}{ \frac{4}{3}\pi \:  {r}^{3}  }  \:  \:  \:  \:  \:  \:  \:
because,
(v =  \frac{4}{3} \pi \:  {r}^{3} )
{r}^{3 }  =  \frac{3m}{4\pi \: p}
{r}^{3 }  =  \frac{3 \times 4.0 \times  {10}^{10} }{4 \times 3.14 \times 2.8 \times \ {10}^{17}  }
after CALCULATION,
{r}^{3}  = 0.341 \times  {10}^{ - 7}
r = 0.32 \times  {10}^{ - 2} m
hope this help........:)

13.

Cauchy criterion for riemann integration

Answer» HEY what U WANT DEAR
14.

Please solve this problem.

Answer»

If my assumption is correct,through 10 RESISTER,current is (20*3)/(20+10)= 2amperes and similarly through 20 is (10*3)/(20+30)= 1A .If I am wrong,then I am sorry.I THINK this is the answer

15.

two conductor of resistance 2 R and R are connected in series with a battery in a circuit the ratio of heat developed in them is what

Answer»

Power is inversely PROPORTIONAL to resistance for EQUAL POTENTIAL difference

then the ratio is 2R:R = 2:1

16.

A uniform meter rule is pivoted at its mid point. a weight of 50gf is suspended at one end of it.where shoul a weight of 100gf be suspended to keep the rule horizontal

Answer»

Rule is pivoted at its mid POINT and a 50 gf (gram force) is suspended at one end.
so, to KEEP the rule horizontal net MOMENT at the mid point should zero.
let 'a' is the distance from the centre where 100 gf (gram force) is suspended.
50gf × (L/2) = 100gf × a
a = L/4
length of rule is 1 metre. so, a = 0.25m

17.

An. electric. iron. draws. 1800c in. one hour. calculate. current. through. it

Answer» HEY!

______________

CHARGE (Q) = 1800 C
Time (t) = 1 HOUR = 3600 s
Current ( I ) = ?

We know,

I = Q / T
I = 1800/3600
I = 0.5 A



________________

Hope it helps...!!!
18.

A substance has 16% by mass of sulphur and 4% by mass of oxygen calculate minimum molar mass of substance

Answer»

The compound has sulphur=16%

16G of S is present in 100g

∴ 32g of S is present in = 32×100/16=200

[Least molecular MASS means that at least one atom of sulphur should be present in MOLECULE]

19.

A straight wire 15m long is subjected to a tensile stress of 2000kgf/ cm2 .elastic modulus is 1.5*106kg/ cm 2 .coefficient of linear expansion for the materil is 16.66 the temperature changes to produce the same elongation as due to the 2000 tensile stress is the materil is

Answer»

Jgfddddffghhjjkoiuytrexxc

20.

Centrifugal pump flow exiting impeller has which type of flow free vortex or forced vortex

Answer»

Here is your ANSWER the TYPE of FLOW is FREE VORTEX

21.

Design a BCD to excess-3-code converter using minimum number of AND gates

Answer»

9 in BCD = 1001

9 in Excess-3 code = 9 + 3 = 12 = 1100

Excess-3 code is self complementing code

Decimal     BCD code     Excess-3 code

                   B₃B₂B₁B₀          E₃E₂E₁E₀

    0              0 0 0 0            0 0 1 1

    1               0 0 0 1             0 1 0 0  

    2              0 0 1 0             0 1 0 1

    3              0 0 1 1              0 1 1 0

    4              0 1 0 0             0 1 1 1

    5              0 1 0 1              1 0 0 0

    6              0 1 1 0              1 0 0 1

    7              0 1 1 1               1 0 1 0

    8              1 0 0 0             1 0 1 1

    9              1 0 0 1              1 1 0 0

22.

A spherical body of radius r consists of a fluid of constant density

Answer»

Then what ASK FULL QUESTION SPECIFICALLY

23.

Angle of attack formula centre of pressure

Answer»

the CENTRE of pressure on a symmetric airfoil typically lies CLOSE to 25% of the chord length behind the leading EDGE of a airfoil ( this is called the quarter chord point) for a symmetric airfoil as angle of attack and lift coefficient CHANGE the centre of pressure does not move

24.

A seconds pendulum is taken on the surface of moon where acceleration due to gravity 1/6th of that of earth. will the time period of pendulum remains same or increase or decrease?u

Answer»

T in MOON INCREASES by √6

25.

Integration of 1+x cube upon root x

Answer»

Multiply the expression by the RECIPROCAL of the power. A reciprocal is SIMPLY a FRACTION flipped. For example the reciprocal of 4/3 is 3/4. MULTIPLYING by 3/4 YIELDS: 3/4 x^(4/3).

26.

Relation between u v f in hindi

Answer» ALOHA ! ☺️✔️





__________________________






\frac{1}{v}   =   \frac{1}{u}  -  \frac{1}{f}  \\  \\  \\  \\  \\ hope \: it \: helps \: you \: .



✌️✨
27.

Simple vector addition question.... class 11......plz solve. find the angle

Answer»

So the ANGLE between A&B is 0°

28.

A particle covers a distance of 13.8+0.2 m in 4+0.3 s.its velocity under error limits will be

Answer»

The ANSWER is 0.5 because MAX POSSIBLE ERROR is ALWAYS +ve

29.

An electron in a hydrogen atom is in fourth excited state.the maximum number of spectral lines emitted

Answer»

It is explain on the basis of series LIKE
lumen balmer or patchen pfund
when ELECTRON JUMPED from nth orbit to 1st orbit it is called lymen in this lymen explain the SPECTRAL LINES
the formula is

nhz \div 4\piem \

30.

An aeroplane fly at a height of 1800 m . if it descent at a constant rate of 60 m per minute , how long it takes to descent at a height of 300m

Answer» 25 MINUTES to TAKE to DESCENT
31.

Root of polynomial or zero of polynomial are they same

Answer» YES ..............................
32.

A metal rod of length l and mass m is pivoted at one end.a thin disk of mass m and radius r is attached to its centre.the disc is not

Answer» PLEASE COMPLETE the QUESTION and then ASK
33.

A lens of refractive index x is placed in a liquid of refractive index y the lens looks disappeared if

Answer»

Because both's REFRACTIVE INDEX is same

34.

Gauss theorem in hindi

Answer»

भौतिकी में गाउस का नियम (GAUSS's LAW) वह नियम है जो विद्युत आवेश के वितरण एवं उनके कारण उत्पन्न विद्युत क्षेत्र में संबंध स्थापित करता है।

35.

train starting from stationary position and moving with uniform acceleration attains a speed of 36 km per hour in 10 minutes find its acceleration

Answer»

Solution:

Initial VELOCITY, U= 0m/s

ACCELERATION, a=?

final velocity, V 36km/ 10min

convert this in KM/h

= 36*1/6

= 6km/ h

Now acceleration= CHANGE in velocity/time taken.

or, v - u/t

= 6-0/10

= 0.6 km h^2

_______________

hope it help...

36.

What is parallel circuit?

Answer»

Components of an electrical CIRCUIT or ELECTRONIC circuit can be connected in MANY different ways. The two simplest of these are called series and parallel and occur FREQUENTLY.

37.

Advantage and disadvantages of phase modulation

Answer»

Advantages and DISADVANTAGES of phase modulation. Advantage – 1. ... we need frequency multiplier to INCREASE phase modulation INDEX. broadcasts are a lower bandwidth and amplitude noise COMES through.

38.

A boy moves 7 km east , 5km north and 3 km west . find the displacement

Answer»

The DISPLACEMENT is √41.
Hope it is USEFUL MARK as BRAINLIEST.

39.

A convex mirror is held in water.what change you will observe in its focal lenght

Answer»

The FOCAL length of a mirror does not depend upon the nature of the medium in which it is placed whereas the focal length of a LENS depends upon the medium in which it is placed. THUS, there will be no CHANGE in the focal length of the concave mirror whereas the focal length of the CONVEX lens will change.

40.

A body is in equilibrium under the action of three force vectors vector a, vector b and vector c similtaneously. show that vector a× vector b=vector b× vector c=vector c× vectora.

Answer»

Start with the given information: A+B+C=0A+B+C=0. Cross with one of the vectors, say AA. Note that A×A=0A×A=0. Note that B×A=−A×BB×A=−A×B. Conclude that A×B=C×AA×B=C×A. Similarly for the other equations.

A geometric argument: The three vectors are the sides of a TRIANGLE in order. The area of the triangle is half the cross PRODUCT of two of them in that order.

41.

Abcd is a parallelogram show that 2dc vector minus bd vector equal to ac vector

Answer»

Let AB = a = DC

BC = b = AD

AC, DB be the DIAGONALS {a,b are vectors}

AC+DB

(AB+BC)+ (DA+DC)

(a+b)+ (-b+a) {-b as the DIRECTION is NEGATIVE}

2a

=2DC

Hence, 2DC=AC+DB

2DC-DB = AC

42.

A baloon is filled with cool air and placed in a warm room.the baloon is not in thermal equlibirium with the air in the room until

Answer»

Until the HEAT FLOWS from HIGH TEMPERATURE to LOW

43.

two substances whose masses are in the ratio 3:4 having densities 3g/cc&2g/cc are mixed homoguosly .find densityof mixture

Answer» MASS ratio=3:4
densities= 3:2
as it was homogenous mixture
density of mixture = (3*3+4*2)/(3+4) = 17/7.
44.

Acid rain happens because of ??

Answer»

D EARTH ATMOSPHERE CONTAINS acids this is because during the formation of clouds REACTION takes place

45.

Please send the summary of motion chapter

Answer» HEY FRIEND...... here is UR ANSWER
46.

a sphere of radius R starts rolling a horizontal surface. then find its distance and displacement when it covers half of its circumference

Answer» CIRCUMFERENCE of circle is 2*PI*R
half the circumference is pi*R
the distance COVERED will be pi*R
the displacement covered will be
R *SQUARE root(pi^2 + 1)
47.

Why do we need sources of energy?

Answer»

Hey mate here is your ANSWER...
we NEED sources of ENERGY to fulfil our increasing requirement MAINLY and also for better SURVIVAL..
hope it will help you my dear friend.....

48.

A liquid of density 2 gram per centimetre cube is kept in a vessel of length 10 cm breadth 5cm and height 15 cm is totally filled calculate the liquid pressure exerted at the center of the vessel ( gravity = 10 m/sec sq.))

Answer»

Pressure exerted will be d*G*h
d is density, h is height or depth, g=10m/sec.sq
then pressure=2000*(0.15/2)*10 =1500 pascals.
here every thing was converted to SI system


If you consider ATMOSPHERIC pressure ALSO then the total pressure will be P (atm)+1500pa
P (atm)= 101325pascals
total pressure will be = 102825

49.

Define the word features

Answer»

A DISTINCTIVE ATTRIBUTE or ASPECT of SOMETHING

50.

the main scale of a vernier caliper is calibrated in mm and 19 divisions of main scale are equal in length to20 divisions of vernier scale. in measuring the diameter of a cylinder by this instrument, the main scale reads 35 divisions and 4th divisions of vernier scale coincides with the main scale division. find 1) least count and 2) radius of cylinder.

Answer» HOPE it HELPS u .PLS mark my answer the BRAINLIEST