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The plugging gives the highest torque braking.

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Description :

What is mean by plugging in three phase induction motor?

Answer :

Plugging in three-phase induction motor means interchanging of any two phases of a stator for quick stopping.

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Description :

Which type of generator gives a constant voltage output at all loads?

Answer :

Level compound generator type of generator gives a constant voltage output at all loads.

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Answer :

Speed control by Ward Leonard method gives uniform speed variation in both directions.

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Description :

Which one of the following methods of soil conservation is most effective in arid areas ? (1) Mulching (2) Shelter belt (3) Gully plugging (4) Terracing

Answer :

Shelter belt

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18 views 1 answer
Description :

Desertification can be checked by (1) plugging gullies (2) checking over-grazing (3) contour ploughing (4) forming shelter belts

Answer :

 checking over-grazing

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Description :

Draw power and control circuit for simple plugging of induction motor.

Answer :

Draw power and control circuit for simple plugging of induction motor.

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742 views 1 answer
Description :

Plugging of dc motors is carried by (1) Reversing only the field and armature polarity (2) Reversing only the field polarity (3) Reversing only the armature polarity (4) Disconnecting the armature from supply and connecting across a resistance 

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121 views 0 answers
Description :

Your body gives off enough heat in 30 minutes to bring half a gallon of water to a boil. If you’ve seen the Matrix you are aware of the energy potentially generated by the human body. Our bodies expend a large amount of calories keeping us at a steady 98.6 degrees, enough to boil water or even cook pasta.

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Description :

Experience shows that success is due less to ability than to zeal. The winner is he who gives himself to his work, body and soul. - Charles Buxton Motivational quote

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Description :

Laziness may appear attractive, but work gives satisfaction. - Anne Frank Motivational quote

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"You just can't beat the person who never gives up." - Babe Ruth  

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Description :

Which among the following gives more freedom to the learner to interact? Options: A) Use of film B) Small group discussion C) Lectures by experts D) Viewing country-wide classroom programme on TV

Answer :

B) Small group discussion 

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4 views 1 answer
Description :

When a co-worker gives you a mental shock, then. What will you do? Options: A) You will develop enmity with him B) You will wait for your turn to put him in the same state C) You will fight in a decent manner D) You think do good and forget it

Answer :

B) You will wait for your turn to put him in the same state 

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10 views 1 answer
Description :

When your parents visit your house, you give them more respect than your in-laws. Under these conditions what will be expected by your life? Options: A) She will ask for equal treatment to her parents because she gives due respect to your parents B) She has no right to ask for similar treatment C) Because your parents are higher in social status, so have a right of high respect D) She will remain in a neutral position

Answer :

A) She will ask for equal treatment to her parents because she gives due respect to your parents

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9 views 1 answer
Description :

A good teacher is one who: (A) inspires students to learn (B) gives useful information (C) explains concepts and principles (D) gives Printed notes to students

Answer :

Answer: A

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9 views 1 answer
Description :

Which among the following gives more freedom to the learner to interact? (A) Use of film (B) Small group discussion (C) Lectures by experts (D) Viewing country-wide classroom programme on TV

Answer :

(B) Small group discussion

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11 views 1 answer
Description :

1. Which bank gives long term loan to farmers? 2. Which mineral is essential for controling heart beat? 3. The Chief Minister of Union Territory where such a set up exists, is appointed by whom? 4. India is the world's largest producer as well as the consumer of which crops? 5. In which veda is the ancient ... of antigens and antibodies called? 19. What is the cause of Exposure of rock to the changes of temperature? 20. Who laid the foundations of Portuguese power in India?

Answer :

Answer : 1. Land Development Bank 2. Iodine 3. Lt. Governor 4. Pules 5. Arthashastra 6. 6 kg 7. Ornithologist 8. 1952 at Bombay 9. 8.00 A.M. 10. Mahmud of Ghazni 11. Heredity ... 15. Muhammad Ghori 16. Per capita income 17. Bangladesh 18. Serology 19. Mechanical weathering 20. Alfonso de Albuquerque

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Description :

1. Who was the first lady Prime Minister in the world? 2. Which muscle is the strongest of all in the human body? 3. Who has the authority to remove the Vice-President from his office before the expiry of his term? 4. Which phenomenon gives an evidence for the spherical shape of the earth? 5. Which ... cellular research centre is situated in which city? 19. Indian Standard Meridian' passes through which states? 20. By whom was the slogan Inquilab Zinda bad' first raised?

Answer :

Answer : 1. Shirimavo Bhandaranaike 2. Thigh 3. Parliament 4. Lunar eclipse 5. Kalidasa 6. Dialysis 7. 20 8. Dance 9. Northwestern Europe 10. Salabat Jang 11. Thigh 12. The Prime Minister 13. ... Cornwallis 16. Annie Besant 17. Panther 18. Hyderabad 19. UP, MP Orissa and AP 20. Bhagat Singh

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10 views 1 answer
Description :

If h* represents an estimate of the cost of getting from the current node N to the goal node and h represents actual cost of getting from current node to the goal node, then A* algorithm gives an optimal solution if (A) h* us equal to h (B) h* overestimates h (C) h* underestimates h (D) none of these

Answer :

(C) h* underestimates h

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Description :

Verification: (A) refers to the set of activities that ensure that software correctly implements a specific function. (B) gives answer to the question - Are we building the product right ? (C) requires execution of software (D) both (A) and (B)

Answer :

(D) both (A) and (B)

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Description :

Which one of the following gives energy to our body ? (1) Vitamins (2) Water (3) Carbohydrates (4) Proteins

Answer :

Carbohydrates

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Description :

The pigment which gives colour to the human skin is (1) Melanin (2) Rhodopsin (3) Iodopsin (4) Anthocyanin

Answer :

Melanin

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9 views 1 answer
Description :

The following sugar gives energy most readily (1) Lactose (2) Cellulose (3) Maltose (4) Glucose

Answer :

Glucose

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Description :

_____ gives hardness to stainless steel. (1) Zinc (2) Lead (3) Carbon (4) Tin

Answer :

Carbon

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8 views 1 answer
Description :

Atomic number of an atom gives the number of which of the following ? (1) electrons (2) protons (3) neutrons (4) neutrons and protons

Answer :

protons

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10 views 1 answer
Description :

Soap helps in better cleaning of clothes because (1) Soap acts like catalyst (2) It reduces the surface tension of solution (3) It gives strength to solution (4) It absorbs the dirt

Answer :

It reduces the surface tension of solution

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11 views 1 answer
Description :

Burning pyrites ore gives out (1) Carbon dioxide gas (2) Sulphur dioxide gas (3) Nitrogen dioxide gas (4) Nitric oxide gas

Answer :

Sulphur dioxide gas 

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Description :

Electrolysis of an aqueous solution of copper sulphate using copper electrodes gives (1) Copper at cathode and oxygen at anode. (2) Copper at anode and oxygen at cathode. (3) Copper at cathode and anodes dissolve to give copper. (4) Hydrogen at cathode and oxygen at anode.

Answer :

Copper at cathode and oxygen at anode.

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12 views 1 answer
Description :

Spirit in contact with body gives cool sensation because it is : (1) liquid (2) transparent (3) highly volatile (4) a good conductor

Answer :

highly volatile

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9 views 1 answer
Description :

We feel cool when we sit near the fan, this is because (1) fan gives cool air. (2) fan cools surrounding air. (3) air vapourises the sweat on our body. (4) we feel cool when air touches the body.

Answer :

air vapourises the sweat on our body.

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10 views 1 answer
Description :

An electron microscope gives higher magnifications than an optical microscope because : (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as compared to the wavelength of visible light (3) The electrons have more energy than the light particulars (4) The electron microscope uses more powerful lenses 

Answer :

The wavelength of electrons is smaller as compared to the wavelength of visible light

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Description :

Flywheel is an important part of a steam engine because it : (1) accelerates the speed of the engine (2) helps the engine in keeping the speed uniform (3) decreases the moment of inertia (4) gives strength to the engine

Answer :

helps the engine in keeping the speed uniform

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7 views 1 answer
Description :

Metal tea pots have wooden handles because (1) wood is a bad conductor of heat (2) it prevents electric shock (3) it gives beauty to the pots (4) it is hygienic

Answer :

 it prevents electric shock

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Description :

Newton’s first law of motion gives the concept of (1) energy (2) work (3) momentum (4) inertia

Answer :

inertia

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Description :

Danger signals are generally red as red light (1) is least bright (2) undergoes least deviation (3) has lowest velocity (4) gives comfort to eye 

Answer :

undergoes least deviation 

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11 views 1 answer
Description :

An electron microscope gives higher magnification than an optical microscope, because : (1) it uses more powerful lenses (2) the velocity of electron is smaller than that of visible light (3) the electrons have more energy than the light particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Answer :

the wavelength of electrons is smaller as compared to the wavelength of visible light

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Description :

Bank rate is that rate on which– (1) Any bank lends money to an individual (2) State Bank of India gives loan to the rural banks (3) Central Bank of Country lends money to the commercial banks (4) Rural bank gives loan to cooperative societies

Answer :

Central Bank of Country lends money to the commercial banks

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Description :

An outgoing batch of students wants to gift a PA system worth Rs 4,200 to their school. If the teachers, offer to pay 50% more than the students and an external benefactor gives three times the teacher's contribution, then how much should the teachers donate? A) Rs 600 B) Rs 840 C) Rs 900 D) Rs 1,200 E) NONE

Answer :

Answer: C The ratio of the share students : teacher: benefactor=1:1.5 : 4.5 So the proportion to teacher's share = 1.5/7 Hence, the teachers would donate 1.5/7×4200=Rs 900

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24 views 1 answer
Description :

P and Q both are dealers of cars. The price of a car is Rs 56,000. P gives a discount of 10% on whole, while Q gives a discount of 12% on the first Rs 40,000 and 8% 0n the rest Rs 16000. What is the difference between their selling prices?

Answer :

discount offer by by P= 10 % of 56000 = Rs. 5600 total discount offer by Q= 12% of 40,000+8% of 16000 =4800+1280=Rs. 6080 required difference= 6080-5600= Rs.480

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168 views 1 answer
Description :

A shopkeeper sells a cricket bat whose marked price is Rs.60 at a discount of 20% and gives a ball costing Rs.3 free with each bat. Even then he makes a profit of 25%. His cost per bat is.

Answer :

Marked price = Rs.60  Selling price = Rs [(80/100 * 60) – 3]  = Rs.45 Let cost price brRs ‘x’.  Then 125% of x = 45  (125/100 * x) = 45  Cost price of one bat = Rs.36

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Description :

Sekar gives the discount of 42% for nokia phone, after he marked the price 29% more than its cost price. find his loss or profit %?

Answer :

Cp= 100 MP=129/100*100=129 Sp=129*42/100 =129-54.18 =74.82 Loss% = (100-74.82) = 25.18%

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Description :

In a famous restaurant rooms were numbered from 401 to 430, each room gives an earning of Rs. 4675/ day for the first 15 days a month and for the later half, Rs. 5370/ day per room. Find the average income room per day over the month of 30 days? A) 5700.5 B) 5872.7 C) 5900.5 D) 5022.5  

Answer :

Answer: D) Total number of rooms = 30 earning in 1st 15 days for 30 rooms  = 15 * 4675* 30 = Rs. 2103750 earning in 2nd 15 days for 30 rooms  = 15 * 5370 * 30 = Rs. 2416500 Average income per ... day over the month of 30 days  = [ 2103750 + 2416500] / [ 30 * 30]  = Rs. 5022.5

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Description :

The time elapsed is plotted along X-axis and the acceleration is plotted along the Y-axis. The area between the graph and the X-axis gives. (a) Average velocity (b) distance covered (c) differences in velocities (d) difference in accelerations

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15 views 0 answers
Description :

A permanent magnet moving coil instrument gives full scale deflection of 25mA when a voltage of 75mV is applied across it. Calculate: (i) Resistance of shunt required for full scale deflection of 150 A. (ii) Series resistance for full scale deflection of 500 V.

Answer :

Answer :

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370 views 1 answer
Description :

Calculate the resistance of shunt required to make a milliammeter which gives maximum deflection for a current of 15 mA and which has a resistance of 5 Ω; read up to 10 Amp.

Answer :

Answer :

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88 views 1 answer
Description :

Define lubricants. Gives its types.

Answer :

Lubricant:- Any substance introduced between two moving or sliding surfaces to reduce the frictional resistance between them is known as a lubricant. Types of Lubricant:- i) Solid lubricant ii) Semi-solid lubricant iii) Liquid lubricant.

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Description :

The loop equation for a series RLC circuit gives

Answer :

The loop equation for a series RLC circuit gives

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Description :

Explain why LVDT gives a residual output at null position. State its 2 applications.

Answer :

LVDT : Residual voltage may be on account of I/P supply voltage and also due to harmonics produced in the o/p voltage on account of use of iron core.  OR  An incomplete magnetic ... pressure is converted into a voltage. In these applications the high sensitivity of LVDTs is a major attraction.

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43 views 1 answer
Description :

In air-core cable the surge voltage travels approximately at the speed of light and a cable of 100m length gives a delay of a. 0.666μsec b. 0.333μsec c. 1.555μsec d. 1μsec 

Answer :

In air-core cable the surge voltage travels approximately at the speed of light and a cable of 100m length gives a delay of a. 0.666μsec b. 0.333μsec c. 1.555μsec d. 1μsec 

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93 views 1 answer
Description :

Shunt generator gives full voltage on load and the voltage drop as the load on the generator a. Decreases b. Increases c. Remains the same d. None of above 

Answer :

Shunt generator gives full voltage on load and the voltage drop as the load on the generator a. Decreases b. Increases c. Remains the same d. None of above 

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43 views 1 answer
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