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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. |
resistance of transmission line is 126 ohm at 20 degree resistance is 35 degree temperature cofficient materials of transition line is 0.00426 |
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Answer» Answer: |
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| 2. |
A wire of resistance RΩ is bent to form a circle as shown in diagram.What is the equivalent resistance between points A and B? |
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Answer» Answer: 3R/16 Explanation: Please REFER the ATTACHED PICTURE for the step-by-step solution of the GIVEN question. Thanks ! |
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| 3. |
Car - 1000 kg standingTruck - 7000 kg moving with 10 m/sm, = 1000 kgu1 =0 m/s m₂ = 7000kgmtMylly - mivet M₂u1000X0 + 7000xlo - v licoot7000)70000 = v(8000)Foove = v V = 8.75 |
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Answer» Explanation: GIVEN : m=1000 kg u=10 m/s t=10 s Applied FORCE F=1000 N (forwards) Retarding force f=500 N (backwards) Acceleration of the CAR in forward direction a= m F−f
= 1000 1000−500
=0.5 m/s 2
USING v=u+at ∴ v=10+0.5×10=15 m/s |
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| 4. |
Define Velocity,,,,, |
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Answer» The velocity of an object is the rate of CHANGE of its position with respect to a frame of reference, and is a FUNCTION of time. ... Velocity is a physical vector quantity; both MAGNITUDE and direction are needed to DEFINE it. |
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| 5. |
Explain the purpose of making two types of rotor construction for three-phase induction motors |
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Answer» Answer: The three phase INDUCTION motor is the most widely used electrical motor. Almost 80% of the mechanical power used by industries is provided by three phase induction motors because of its simple and RUGGED construction, low cost, good operating characteristics, the absence of COMMUTATOR and good speed REGULATION. In three phase induction motor, the power is TRANSFERRED from stator to rotor winding through induction. The induction motor is also called a synchronous motor as it runs at a speed other than the synchronous speed. 3 Phase Induction Motor Construction Like any other type of electrical motor induction motor, a 3 phase induction motor is constructed from two main parts, namely the rotor and stator: Stator: As its name indicates stator is a stationary part of induction motor. A stator winding is placed in the stator of induction motor and the three phase supply is given to it. Rotor: The rotor is a rotating part of induction motor. The rotor is connected to the mechanical load through the shaft. The rotor of the three phase induction motor are further classified as Squirrel cage rotor Slip ring rotor or wound rotor or phase wound rotor. Depending upon the type of rotor construction used the three phase induction motor are classified as: Squirrel cage induction motor Slip ring induction motor or wound induction motor or phase wound induction motor. The construction of a stator for both of the kinds of three phase induction motors is identifcal, and is discussed briefly below. Please ensure you are using the appropriate electrical tools if you’re going to be deconstructing a motor yourself. The other parts of a 3 phase induction motor are: Shaft for transmitting the torque to the load. This shaft is made up of steel. Bearings for supporting the rotating shaft. One of the problems with electrical motor is the production of heat during its rotation. To overcome this problem, we need a fan for cooling. For receiving external electrical connection Terminal box is needed. There is a small distance between rotor and stator which usually varies from 0.4 mm to 4 mm. Such a distance is called air gap. |
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| 6. |
17) (C) Which of the following is not true with the Law of Conservation of Mass(a) Mass can neither be created now destroyed in chemical reaction(b) Total Mass of reactants is equal to sum of Masses of Products and the masses of un reacted reactants- It is given by Lavoisier(d) Atom of elements can be transformed into the other atoms in chemical reaction |
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| 7. |
Important question of class 11 physics chapter 1,2,3 of state board |
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Answer» where is your QUESTION? |
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| 8. |
If the force applied on the body is doubled while keeping the mass constant, the acceleration will be? |
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Answer» What does it mean to say that the acceleration of an object is PROPORTIONAL to the net force acting on the object? If mass REMAINS constant and you DOUBLE the force you will double the acceleration. If you triple the force, acceleration TRIPLES. |
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| 9. |
what is resultant force if object weight is 2kg and two forces are applying 12N and 5N opposite to each other. |
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Answer» Answer: yes maybe I should of been downloaded on copy video ☺️ of Hindi MOVIE WATCH from earlier this week to be able and underdeveloped COUNTRIES of the introduction I don't think we can get a comparison of we are in India gets fair to be able and WILLING and able and willing and able and willing and MODERN and contemporary art of education different than what you expect from |
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| 10. |
What is rotatory motion????? |
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Answer» Answer: the MOTION of a BODY about its own AXIS is CALLED rotatory motion Explanation: |
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| 11. |
Find the dimension of forse |
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Answer» MLT-2 Explanation: force=mass*acceleration f=(M)*LT-2=(MLT-2) |
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| 12. |
One end of a steel girder in a bridge is not fixed,but is kept on rollers. Give the reason. |
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Answer» Answer: ONE end of the GIRDER is fixed into the concrete or BRICK pillars and its other end is not fixed, but it is placed on rollers. The reason is that if there is any rise (or fall) in temperature of atmosphere, the girder can freely EXPAND (or contract) without affecting the pillars. |
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| 13. |
A projectile is launched with an initial velocity of 40 m/s, at an angle of 30o above the horizontal. What si the maximum height reached by the projectile? |
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Answer» Answer: A PROJECTILE is LAUNCHED with an initial VELOCITY of 40 m/s, at an angle of 30o above the horizontal. What SI the maximum HEIGHT reached by the projectile? |
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| 14. |
Write and explain two true statement about projectile |
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Answer»
A PROJECTILE is an object upon which the only force is GRAVITY. Once projected, its horizontal MOTION is EXPLAINED by the law of inertia and its VERTICAL motion
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| 15. |
Virtual image is formed by extendin the rays backwards while drawing ray diagrams.a) Trueb) False |
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Answer» Answer: CORRECT QUESTIONVirtual image is formed by EXTENDING the rays backwards while drawing RAY diagrams.a) TRUEb) FalseExplanation: ANSWER:A),TRUE IS THE CORRECT ANSWER. |
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| 16. |
Can an electromagnet be used to separate iron nails from a heap of junk in absence of power? |
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Answer» Answer. Iron can be separated from trash by using electromagnets. Trash can CONTAIN waste materials including iron ore and so moving an electromagnet fitted to a crane can lift up the iron, also CALLED scrap iron that is REQUIRED and separate it from the trash that is UNWANTED. |
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| 17. |
10) Find the dimension of (i) Density |
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Answer» Therefore, DENSITY is dimensionally REPRESENTED as [M1 L-3 T0]. |
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| 18. |
Bochy descend to the theorA PeronsonMoversais released tension and graduallyThey are tractional stomary or recreational dance music toIl They stress than tolk dance became the yelpon other which were1. SustamedSwingingbeen evolved naturally and were handed down across generationAtihan danceContemporary danesD Social dancepocally sign icon or de resavimentos costos and versespart or their story and patterns of daily livingFrancisca Reyes and hopeLopez and RutledgeWho is the test National Artist of Philippine Folk Dance!A Francisca Reyes Aquinouggar SchierThese danes may require a certain level of special performing sales 1962) deala symbolic nang making a harder for these outside the group to understand( Occupational B contemporaryKuldre und Schlo1) Schouman and Raya(Ethnic D National danceRibeOccupationalwhich is her considered as major regional dass manions of Philippines Polk dance?Anbal danceMuslim dancesD. Rinal dances10. We need to deal with the sur that is part of our bves, also happens for many reasonenvironmental factors fuligue, too much work, bress and lonchness.SUOSE17 Underweight people are often found to suffer from malnutrition due tolack of adequate nutrients Clock or sleeping hoursB Processed thodsstored tats18 The body way or vaching to an external stimulus such as a discomfort i no popertydealt with a can lead to many health concerns difficulties in stepmg peor manyhypertension and evca heart diseaseAllnessB StressC DepressionDure of deals19. Which found to be one of the leading courses of overweight and obesityA Too much istaks or processed foods lack of exerciseD sloping after eaning20 They one have a hard am doing sample tasks such as Dying their shoclases or wallsshon fight or stairs People often cncounter a lot of physical and emotional strucCoverweight and underD overweight and obisB Obesa |
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Answer» okkkkkkkkkkkkkkkkkkkk |
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| 19. |
Passes6.4 Two 10Kg masses are suspended at the two ends of a rope whichover a light frictionless pulley. The pulley is attached to a chain whichgoes to the ceiling, as shown in Fig. P 6.2. What is the tension in the (arope (b) chain?Fig. P-6.2 |
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Answer» xjwjxjwjcn3fi2k a 8 to see a doctor and it WOULD be great but it was so I am looking 7,बिं |
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| 21. |
Of16. We need to deal with the fact that is part of our lives, also happens for many reasons-environmental factors, fatigue, too much work, illness and loneliness.A. SleepB. Eating C. StressD. Exercise17. Underweight people are often found to suffer from malnutrition due toin the body.A. Lack of adequate nutrientsC. lack of sleeping hoursB. Processed foodsD. stored fats18. The body's way of reacting to an external stimulus such as a discomfort. If not properlyimmunity,dealt with, it can lead to many health concerns- difficulties in sleeping, poorhypertension, and even heart disease.D. Cause of deathA IllnessB. Stress C. Depression19. Which found to be one of the leading causes of overweight and obesity.A. Too much intake of processed foods C. lack of exerciseB. OvereatingD. sleeping after eating20. They often have a hard time doing simple tasks such as tying their shoelaces or walking up ashort flight of stairs. People often encounter a lot of physical and emotional struggles in theirdaily lives.A. OverweightC. overweight and underweightB. ObeseD. overweight and obese |
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Answer» don't no OK ok ok ok ok ok ok |
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| 22. |
What do sources tell us about the political life of aryans? |
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Answer» Explanation: The FAMILY was regarded as the social and political UNIT. It was the nucleus of the social life of the EARLY ARYANS. The father was the head of the family and he was known as “Grihapati”. The Aryans had joint FAMILIES |
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| 23. |
a rocket launches a satellite from a height of 100m with velocity of 100m/s how high will it rise ? a) 200m. b) 300m. c) 400m. d) 600m |
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Answer» for PROJECTILE MOTION |
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| 24. |
What is a simple pendulum? Derive the expression for its timeperiod. What is meant by second’s pendulum? |
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Answer» Answer: Explanation: A simple pendulum consists of a MASS m hanging from a string of length L and fixed at a pivot point P. A seconds pendulum is a pendulum WHOSE period is precisely two seconds; one second for a SWING in one direction and one second for the return swing, a frequency of 0.5 Hz. |
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| 25. |
State the differences between S.H.M and periodic motion. |
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Answer» Answer: In the periodic motion, the DISPLACEMENT of the object may or may not be in the direction of the RESTORING FORCE. In the SIMPLE harmonic motion, the displacement of the object is ALWAYS in the opposite direction of the restoring force. |
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| 27. |
12. An object is placed at a distance of 50cm from a concave lens of focal length30cm Find the nature and position of the image |
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| 28. |
3) A Train starting from rest attains a speed of 12km/HR in 5min Find the acceration and the distance traveled |
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Answer» final velocity,v=12km/hr time,t=5 min=5/60 hours now v=u+at 12=0+a×5/60 12×60/5=a a=144km/hr2 now 12×12-0=2×144×s 1/2=s or s=0.5km |
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| 29. |
The altitude at which the weight of a body is only 64% of its weight on the surface of earth is |
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Answer» h = 1.6×10^6 m Explanation: LET h be the height at which weight of the BODY is 64 % of its weight on earth. W' = 64W/100. g' = g [R/(R+h)]² [(R+h)/R]^2 = g/g' (h/R + 1)^2 = mg / mg' (h/R + 1)^2 = W / W' (h/R + 1)^2 = W / (64W/100) (h/R + 1)^2 = 100/64 h/R + 1 = 10/8 h/R = 1.25 - 1 h/R = 0.25 h = 0.25 R h = 0.25 × 6.4×10^6 h = 1.6×10^6 m Hence, altitude is 1.6×10^6 m. Mark me Brainliest!! : ) |
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| 30. |
A mans weight 600n on poles and his correct weight on equator |
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Answer» We know that GRAVITY at pole is slightly higher than gravity at equator. Value of g at pole is 10 m/s^2 WHEREAS at equator, it is 9.8 m/s^2. So weight of the person will be slightly less at equator than at pole. _______________________ If you want how MUCH less, Weight at pole = 600N mass = W/g' = 600/10 = 60kg Weight at equator = mg = 60×9.8 = 588N So his weight will be 12N less at equator than at pole.
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| 31. |
Equal heat is given to two objects Aand B of mass 2g. Temperature of Aincreases by 4°C and B by 7°C.Which object has more specific heat?And by what factor?Please give ans. by steps Final ans. must come is A=5/3 |
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| 32. |
Observed. So, electric current was considered to be the flow of positivecharges and the direction of flow of positive changes was taken to be thedirections of electric current Conventionally, in an electric circuit thedirection of scrie current is taken as opposite to the direcuon of theflow of electrons, which are negative charges. what do they mean by this?hmm |
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Answer» Explanation: Ben Franklin, who conducted extensive scientific studies in both static and CURRENT electricity, envisioned positive charges as the CARRIERS of CHARGE. As such, an early convention for the DIRECTION of an electric current was established to be in the direction that positive charges WOULD move. Hope it helps you and pls mark me as the brainliest |
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| 33. |
What is the committee system under a municipality? |
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Answer» Answer: The municipal council is the highest governing body of a municipality. Members of the council make all the major decisions affecting the municipality. This includes decisions on education, the construction of new buildings or TAX levels. Municipal COUNCILS are elected every 4 years by the residents of the municipality. Mark me BRAINLIEST!! : ) |
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| 34. |
Wfi=0 is maximum when |
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Answer» Answer: Answer: Heyy MATE. the WiFi if US on 0 Mbps so it won't give any network. |
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| 35. |
Q. 20. The bob of a simple pendulum is a spherical hollow baṁ which is completelyfilled with water. if a fine hole is made in the bottom of the ball, what will be itseffect on the time period of the pendulum? Give reason. |
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Answer» hxgdjjehebbdifijfj ekkejr |
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| 36. |
The figure given below shows an image produced by an object placed in front of a plane mirror. |
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| 37. |
Calculate the energy required to move an earth satellite of mass 10^3 |
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Answer» Answer: PTA nhi hai Explanation: 1222234522.7445 please MARK me as BRAINLIEST |
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| 38. |
6) A 20 gr bullet leaves a machine gun with a velocityof 200 m/s. If the mass of the gun is 20 kg, find itsrecoil velocity. If the fires 20 bullets per second,what force is to be applied to the gun to preventrecoil? |
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Answer» Answer: Explanation: I HOPE this answer is you useful. |
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| 39. |
What is machine tell me?? hurry up it's very argent ques for me. |
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Answer» hi Explanation: MACHINE is a object which makes our LIVES EASIER don't blame me I know this MUCH only |
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| 40. |
resistance of an electric iron is 50 ohms with a current of 4.2 amps flowing. calculate the voltage between the two points |
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Answer» Explanation: I = 4.2A R = 50 ohm's V = 50× 4.2 = 210 V |
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| 41. |
A copper sphere of 100 g mass is heated to raise its temperature to 100 °C andmass of calorimeter is 50 g, what will be the maximum temperature of water?is released in water of mass 195 g and temperature 20 °C in a copper calorimeter. If the mass of calorimeter is 50g ,What will be maximum temperature of water ? |
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Answer» z00 M, Id:6849304329, P:12345 |
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| 43. |
Mapeh(Health)Gawain sa Pagkatuto bilang 1:Punan ang ven Diagram ng mga Pagbabagong nararanasan sa katana sa panahon ng nagbibinata at nagdadalaga.Isulat din ang pagbabago ng parehong kasarian.Gawain ito sa iyong kuwadernoPls pa help po Para matapos ko na po ang module ko pls bukas po kasi ibibigay ang mga module's.Pls pa help po :( |
Answer» PLEASE WRITE in ENGLISH . . . |
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| 44. |
A ceiling fan is rotating with a speed 50 rpm in a region where the magnitude & direction of terrestrialmagnetic field is 02 T, 30º N. If length of a blade of the fan is 40 cm, find the potential difference acrossthe ends of each blade. Mention at which end of the blade the electrons will be accumulated ó at theend connected with the fan or at the furthest end from the fan ? |
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Answer» Answer: DIAMETER =2R=120cm=120×10 −2 m Rpm=1500 Revolution PER second = 60 1500
=25 Angular velocity w=25×2π=50πrad/s a) Force =mrw 2
=1×10 −3 ×60×10 −3 ×2500pi 2
=14.8N b) The fan exerts this force on the particle. c) By NEWTON's third law the particle ALSO exert 14.8N of force on the blade along its surface. |
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| 45. |
In the structure of a fiber, which component provides additional strength and prevents the fiber from anydamage? |
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Answer» Answer: The coating, or buffer, protects the core and cladding and provides strength. When the fiber is manufactured into a CABLE, the next layer is a MATERIAL, such as Kevlar, that provides strength to the cable and helps prevent damage due to stress. The entire PACKAGE is then ENCASED in a jacket. Mark me Brainliest!! :)
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| 46. |
What is the angle betweena=30i-4.0j and b-2.0i + 3.0k |
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Answer» This QUESTION is wrong Explanation: MARK me as BRAINLIEST |
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| 47. |
How much heat energy is necessary to raise the temperature of 5 kg of waterfrom 20 °C to 100 °C. |
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Answer» Answer: The boiling POINT of water is 100∘C . Heat is a form of energy that is transferred from systems having high temperature to LOW temperature. Hence, we REQUIRE 1680 kJ of energy to heat 5 kg of water from 20∘C to 100∘C |
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| 48. |
A real image can be formed by a :A. plane mirror B. concave mirror C. convex mirrorD. concave lens |
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| 49. |
a car is accelerated on a leveled road and attains a velocity 4 time of its initial velocity . in this process the kinetic energy of the car.c6 |
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Answer» (d)becomes 16 TIMES that of initial KINETIC energy. Explanation: kinetic energy of a body is directly proportional to the square of the velocity.so, the kinetic energy will become 16 times its initial value if the velocity is increased 4 times. |
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