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. |
1 kg (mm)_2=y mg (km)_2 find y |
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| 2. |
Measuring device used for measuring the length of a curved line |
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Answer» Answer: An opisometer ALSO KNOWN as curvimeter is USED to MEASURE the LENGTH of a curved line. |
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| 3. |
The basic principle behind a transformer is ________________[a] SELF INDUCTION [B] MUTUAL INDUCTION |
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Answer» Answer: heya mate there's your answer the basic PRINCIPLE behind a transformer is mutual INDUCTION. HOPE it helps you THANK you |
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| 4. |
7. The purpose of a rheostat is |
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Answer» Rheostat is an ADJUSTABLE or variable resistor. It is used to CONTROL the electrical resistance of a CIRCUIT without interrupting the flow of current. ... Rheostats are used in APPLICATIONS that require high voltage and current. |
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| 5. |
Find the resultant (R). |
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Answer» Answer 6.1644 Explanation: TAKING COMPONENTS of A (3+5sin45)j + (2+5sin45)i = 6.1644. (R=√x2+y2) |
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| 6. |
A car travels 165 km in 3 hours. How far will it travel in 6 and a half hours |
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Answer» Answer: 357.5km Explanation: 165 Km in three HOURS so it will travel 165/3 in one hour Multiplying it by 6.5 we get 357.5 km ☺ |
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| 7. |
Conductivity of semiconductors depends strongly on temp why |
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Answer» Explanation: For semiconductors the electrons in it aren't as tightly bound to the atoms as in nonconductors but they aren't too loose as in conductors either... The conductivity of a material largely depends on the NUMBER of free electrons (the flow of ELECTRICITY is taken in opposite direction to the flow of electrons or the negative charges) when temperature is increased the electrons gain ENERGY and the number of free electrons increases exponentially thus conductivity increases with INCREASING temperature.... when temperature is decreased the electrons loose energy and they get back in orbits of the atoms thus the number of free electrons decreases and with it conductivity decreases too.. |
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| 8. |
Conservation of water and electricity need of the hour |
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Answer» Explanation: The need of the hour is to CONSERVE the earth's RESOURCES and protect them from DEGRADATION of any kind. |
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| 9. |
Ohm meaning please help me |
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Answer» Answer: ohm is the SI unit of ELECTRICAL resistivity. it means that transmitting of 1 ampere of current when POTENTIAL difference is of 1 volt |
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| 10. |
Why r mirage only in extremely hot region not it extreme cold???? |
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| 12. |
15. Describe an experiment to demonstrate that waterabsorbs heat during boiling at a constanttemperature. |
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Answer» Take some water in beaker. Add lab thermometer to measure its TEMPERATURE. Keep it on an TRIPOD stand over a BUNSEN burner. Measure the temperature of water. You'll notice that the temperature REMAINS constant for some time. And after a sudden its temperature increases. hope it's helpful |
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| 13. |
an object of mass 0.5 kg is held at end of a string 0.8 long if the string makes three revolution in 1.2 second find the tension of a string |
Answer» Answer:Hello Dear User__________ Here is Your Answer...!! ____________________ Step by step SOLUTION:HOPE it is CLEAR to you. |
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| 14. |
A ball is kicked with an initial velocity of 16 m/s in the horizontal direction |
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Answer» SORRY what is the QUESTION , then only we can FIND the SOLUTION |
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| 15. |
Can be the refractive index of a medium be less than 1 |
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Answer»
REFRACTIVE index can not be LESS than ONE becoz no MEDIUM has speed of light more than that in Vacuum. hope it's helpful |
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| 17. |
The movement of a drill |
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Answer» Answer: Explanation: The drill bit is usually a rotary CUTTING tool, OFTEN multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions PER minute. ... Instead, the HOLE is usually made by hammering a drill bit into the hole with quickly repeated short movements |
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| 18. |
The fixed temperature at which solid starts melting |
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Answer» Explanation: |
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| 19. |
Properties of convex and concave mirror |
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Answer» Answer: Explanation: CONCAVE mirrors can produce both real and virtual images; they can be upright (if virtual) or inverted (if real); they can be behind the mirror (if virtual) or in front of the mirror (if real); they can also be ENLARGED, reduced, or the same size as object. 2) CONVEX mirror always produces virtual and erect images. 3) The image formed by the convex mirror will be always diminished. When the outer surface is reflecting surface it is called convex mirror. they are always upright and not enlarged even when we move the object close to the mirror. |
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| 20. |
A particle starts from the origin along the x-axis to the point 20m, 0and then return along the same line to the point -20m,0 find the distance and displacement of the particle during the trip |
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Answer» Displacement = 0M |
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| 21. |
Motion of football during the game |
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Answer» MOTION of football during the GAME is Non Uniform Circular Motion HOPE it HELPS ✌✌ |
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| 22. |
A boy of mass 50 kg runs with a force of 100 newton is acceleration would be |
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Answer» force=mass ×acceleration 100=50×a a=2m/sec^2 |
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| 23. |
Find electrostatic pot. enegy of four changes q,-q,+q,-q at ABC and D of square of side r |
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| 24. |
An athlete completes one round of a circular track of diame200 m in 40 s. What will be the distance covered and thedisplacement at the end of 2 minutes 20 s? |
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Answer» Answer: diameter=200,THUS radius = 200/2=100m and time=40sec. Explanation: so.. distance=circumference of CIRCLE 2πr= 2*22/7*100 =2*3.14*100 =2*314 =628. so this is distance. displacement=0 because his initial and FINAL POSITION that same.
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| 25. |
What is direction?? |
Answer» Direction..A COURSE ALONG which someone or something moves. A course along which someone or something moves.‘she SET off in the opposite direction’ A course along which someone or something moves.‘she set off in the opposite direction’mass NOUN ‘he had a terrible sense of direction’ HOPE IT HELPS YOU MARK ME AS BRAINLIST.. |
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| 26. |
F. HOTS Questions:-1. In winter, people generally sit around a fire. How they get heat?2. If you are given the choice in winter of using either one thick blanket or two thin blankets jointed together, What would you choose? Why?3. The presence of a hot object can be felt without any contract. How?4. Why does transfer of heat not take place by conduction in fluids?5. Why are radiators of car painted black? |
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Answer» I am not ABLE to UNDERSTAND which QUESTION you want to know |
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| 28. |
Calculation of current in series-parallel combination |
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Answer» in SERIES firt find the EFFECTIVE resistance using Reff=R1+R2+R3... using v=IR find current same WAY for PARALLEL use Reff as 1/R1+1/R2.. and find current |
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| 29. |
Motion of a stone tied to a string and revolving |
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Answer» OSCILLATORY MOTION is the ANSWER |
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| 30. |
A ribbon of length 5 1/4m cut into small pieces each of length 3/4m number of pieces will be. |
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| 31. |
Height of a candle is 10cm. Height of its image seen in the plane mirror is |
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Answer» Answer: 10 cm Explanation: |
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| 32. |
The position-time graphs of two cars A and B are straight lines making angles 30° and 60° with the time axisrespectively. The ratio of velocities of A and B is(1) 1:3(2) 1:3(3) 3:1(4) 3:1 |
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Answer» Answer: 1:3 is the answer please MARK me as BRAINLIEST and FOLLOW me |
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| 33. |
What is force ?how many type of force |
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Answer» Explanation: Basically, there are two types of forces, contact forces, and non-contact forces. Gravitational force, electric force, MAGNETIC force, nuclear force, frictional force are some examples of force. Contact forces are just what they sound like: forces that result from the interaction of two OBJECTS in contact with each other. Forces that BELONG in this category are friction, air resistance, normal force, applied force, TENSION force, and SPRING force. |
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| 34. |
Kinematics introduction |
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Answer» Explanation: Kinematics is the science of describing the motion of OBJECTS using words, diagrams, numbers, graphs, and EQUATIONS. Kinematics is a branch of MECHANICS. The goal of any study of kinematics is to develop sophisticated mental models that serve to DESCRIBE (and ultimately, explain) the motion of real-world objects. |
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| 35. |
Which instrument is used to measure weight |
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Answer» HEY USER , HERE IS YOUR ANSWER :- ✔️✔️ WEIGHING MACHINE or SPRING balance is used to measure weight. HOPE IT HELPS YOU |
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| 36. |
a particle is moving in a circle of diameter 5m . find ots displacement when it completes 1 and 3/7 revolution. |
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Answer» the DISPLACEMENT will be 0 m |
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| 37. |
Some simple problem questions from resistance"Only questions"Please. Hurry upPls.. Pls.. Pls.. |
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Answer» Answer: DETERMINE the following quantities for each of the two circuits SHOWN below… a.the equivalent resistance, B the total CURRENT from the power supply, the current through each resistor, c.the voltage drop ACROSS each resistor, and d.the power dissipated in each resistor. |
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| 38. |
What is guass law? explain electric flux? |
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Answer» HEY HERE IS YOUR ANSWER.....✌ SORRY FOR LATE......^o^ In physics, Gauss's law, also known as Gauss's flux THEOREM, is a law RELATING the distribution of electric charge to the RESULTING electric field. The surface under consideration may be a closed one enclosing a volume such as a spherical surface...... Electric flux over an area in an electric field is a measure of electric field lines crossing the area over it. If small planar element of area "dA" is placed normal to electric field then the NUMBER of electric field lines crossing this area element is proportional to E*dA.... Hope its helpful to you.....✌ |
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| 39. |
Advantages of conventional sources of energy |
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Answer» HeyMate♥️... |
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| 40. |
Advantage of full wave rectifier over half wave rectifier |
Answer» Full wave RECTIFIERS have some fundamental advantages over their half wave rectifier counterparts. The average (DC) output voltage is HIGHER than for half wave, the output of the full wave rectifier has much less RIPPLE than that of the half wave rectifier producing a smoother output waveform. |
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| 41. |
Speed of moon in km/s |
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Answer» Answer: 3683km/h SPEED...... |
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| 42. |
Vuuru v Velil qualCY LAPU.How friction is dependent on area of contact? |
Answer» ANSWERAlthough a larger area of contact between two surfaces would CREATE a larger SOURCE of frictional forces, it also reduces the pressure between the two surfaces for a given force holding them together. SINCE pressure equals force DIVIDED by the area of contact, it works out that the increase in friction generating area is exactly offset by the reduction in pressure; the resulting frictional forces, then, are dependent only on the frictional coefficient of the materials and the FORCE holding them together. If you were to increase the force as you increased the area to keep PRESSURE the same, then increasing the area WOULD increase the frictional force between the two surfaces. ♥ Hope it helps you♥ |
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| 43. |
A diac is simply a ____ triac without a _____ terminal |
| Answer» YES , this is RIGHT so WANT U to ASK ?? | |
| 44. |
A 10 ohm resistance wire is doubled on it calculate the new resistance of wire |
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Answer» new RESISTANCE is 20 OHM as it is DOUBLED |
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| 45. |
Obtain an expression for velocity of sound in homogeneous medium |
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Answer» sry don't know Explanation: |
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| 46. |
State two types of physical changes that may take place when a substance is heated |
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| 47. |
Make a chart of candle and describe its different zones |
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Answer» The outermost ZONE: The outermost zone also KNOWN as non-luminous zone is the zone of complete COMBUSTION. The ample presence of oxygen (or air) AIDS in complete combustion. It is the hottest zone of the candle FLAME and does not produce much light. It is blue in colour. |
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| 48. |
Hi guys, simple question, what is conventionally current, please answer for sibi |
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Answer»
Conventionally currentconventionally current is the flow of positive charge from positive to negative terminal and is the REVERSE of real ELECTRON flow..... I HOPE it help you
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| 49. |
Explain the use of electricity in transport purpose. I will mark branlist to the best answer |
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Answer» a Power PLANT is an industrial FACILITIES that generates electricity from primary energy . most power plant uses aur generator that CONVERT mechanical energy Electric Supply power electric GREED |
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| 50. |
1. What are the four functions/uses of a machine? |
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Answer» Explanation: The beauty of applications that employ machine learning is that they can be extremely simple on the surface, hiding away much complexity from users. However, designers can’t AFFORD to ignore the under-the-hood part of machine learning altogether. In this article, I DEMONSTRATE the three main functions machine learning algorithms perform underneath with along with six unique benefits you can derive from using them. SO WHAT HAVE MACHINES LEARNED SO FAR? In 2016, the most celebrated milestone of machine learning was AlphaGo’s victory over the world champion of Go, Lee Sedol. Considering that Go is an extremely complicated game to master, this was a remarkable achievement. Beyond exotic games such as Go, Google Image Search is maybe the best-known application of machine learning. Search feels so natural and mundane when it effectively hides away all of the complexity is embeds. With over 30 billion search queries every day, Google Image Search constantly gets more opportunities to learn. Three main USES of machine learning
There are already more individual machine learning applications that are reasonable to list here. But a major simplification is not sufficient either, I feel. One way to appreciate the VARIETY is to look at successful ML applications from Eric Siegel’s book Predictive Analytics from 2013. The listed applications fall under the following domains: marketing, advertising, and the web; financial risk and insurance; health care; crime fighting and fraud detection; fault detection for safety and efficiency; government, politics, nonprofit and education; human-language understanding, thought and psychology; staff and employees, human resources.
Siegel’s cross-industry collection of examples is a powerful ILLUSTRATION of the omnipresence of predictive applications, even though not all of his 147 examples utilise machine learning as we know it. However, for a designer, knowing whether your problem domain is among the nine listed will give an idea of whether machine learning has already proven to be useful or whether you are facing a great unknown.
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