Silicon percentage in the silicon steel used for electrical appliances/equipments is (A) 0.3-0.4 (B) 12-14 (C) 3-4 (D) 20-25

Silicon percentage in the silicon steel used for electrical
appliances/equipments is
(A) 0.3-0.4
(B) 12-14
(C) 3-4
(D) 20-25
by

1 Answer

Answer :

Option C
by

Related questions

Silicon percentage in silicon steel used for electrical equipments is about (A) 1 (B) 4.0 (C) 8 (D) 14

Description : Silicon percentage in silicon steel used for electrical equipments is about (A) 1 (B) 4.0 (C) 8 (D) 14

Last Answer : Option B

Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical appliances made of silicon steel contains maximum percentage of silicon (about 4%)? (A) Armature of small motors/generators (B) Generators and small motors (C) Induction motors (D) High frequency transformers

Description : Straight silicon steel (containing Si from 0.5 to 5%) because of their low hysteresis loss and high magnetic permeability are used for electrical appliances. Which of the following electrical ... /generators (B) Generators and small motors (C) Induction motors (D) High frequency transformers

Last Answer : (D) High frequency transformers

Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and (A) Manganese (B) Silicon (C) Nickel (D) Chromium

Description : Work hardenable alloy steel used to make the bucket wheel excavators, blades of bulldozers and other earth moving equipments contain iron, carbon and (A) Manganese (B) Silicon (C) Nickel (D) Chromium

Last Answer : (A) Manganese

Silicon percentage in acid resistant cast iron is about (A) 4 (B) 8 (C) 14 (D) 20

Description : Silicon percentage in acid resistant cast iron is about (A) 4 (B) 8 (C) 14 (D) 20

Last Answer : (C) 14

Silicon percentage in acid resistant cast iron is about (A) 4 (B) 8 (C) 14 (D) 20

Description : Silicon percentage in acid resistant cast iron is about (A) 4 (B) 8 (C) 14 (D) 20

Last Answer : (A) 4

The Bureau of Energy Efficiency initiated the standard and labelling programme for equipments & appliances in A. 2001. B. 2004. C. 2006. D. 2008.

Description : The Bureau of Energy Efficiency initiated the standard and labelling programme for equipments & appliances in A. 2001. B. 2004. C. 2006. D. 2008.

Last Answer : 2006

Pick out the wrong statement. (A) Alloys are harder than their component elements (B) Presence of silicon in steel decreases its electrical resistance (C) Karbate is an acid resistant material of construction (D) Nichrome, a steel alloyed with 10% Ni and 20% Cr can be used upto a temperature of 1100°C

Description : Pick out the wrong statement. (A) Alloys are harder than their component elements (B) Presence of silicon in steel decreases its electrical resistance (C) Karbate is an acid resistant material of construction ... , a steel alloyed with 10% Ni and 20% Cr can be used upto a temperature of 1100°C

Last Answer : (B) Presence of silicon in steel decreases its electrical resistance

Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines? (A) Silicon steel (B) Chromium steel (C) Molybdenum steel (D) None of these

Description : Which of the following alloy steels has the energy saving properties making it suitable for use in electrical machines? (A) Silicon steel (B) Chromium steel (C) Molybdenum steel (D) None of these

Last Answer : (A) Silicon steel

Carbon percentage is the same in cast iron and (A) Wrought iron(B) Pig iron(C) Mild steel(D) High silicon (14%) iron

Description : Carbon percentage is the same in cast iron and (A) Wrought iron (B) Pig iron (C) Mild steel (D) High silicon (14%) iron

Last Answer : (B) Pig iron

The compound of silicon used as insulating material for electric motors/appliances is

Description : The compound of silicon used as insulating material for electric motors/appliances is

Last Answer : silicone.

Silicon steel is used in electrical machines because it has?

Description : Silicon steel is used in electrical machines because it has?

Last Answer : Silicon steel is used in electrical machines because it has low hysteresis loss.

Which of the following is not a source of ozone emission in the atmosphere? (A) Refrigerators (B) Xerox machines (C) Dermatological photo-therapy equipments (D) High voltage electrical equipments

Description : Which of the following is not a source of ozone emission in the atmosphere? (A) Refrigerators (B) Xerox machines (C) Dermatological photo-therapy equipments (D) High voltage electrical equipments

Last Answer : (A) Refrigerators

Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of the plant = original cost × (index value at present/ index value at time original cost was obtained). The most major component of this cost index is (A) Fabricated equipment and machinery (B) Process instruments and control (C) Pumps and compressor (D) Electrical equipments and material

Description : Chemical engineering plant cost index is used for finding the present cost of a particular chemical plant, if the cost of similar plant at some time in the past is known. The present cost of ... (B) Process instruments and control (C) Pumps and compressor (D) Electrical equipments and material

Last Answer : (A) Fabricated equipment and machinery

Alinco, which is a aluminium-cobalt-nickel steel, is used for making (A) Surgical instruments (B) Powerful magnets (C) Chemical equipments (D) Boiler tubes

Description : Alinco, which is a aluminium-cobalt-nickel steel, is used for making (A) Surgical instruments (B) Powerful magnets (C) Chemical equipments (D) Boiler tubes

Last Answer : (B) Powerful magnets

The Minimum amount of steel for Main reinforcement in slab should be (Fe 415- grade of steel) [ A ] 0.12 percent of gross cross sectional area [ B ] 0.15 percent of gross cross sectional area [ C ] 0.20 percent of gross cross sectional area [ D ] 0.25 percent of gross cross sectional area.

Description : The Minimum amount of steel for Main reinforcement in slab should be (Fe 415- grade of steel) [ A ] 0.12 percent of gross cross sectional area [ B ] 0.15 percent of gross cross sectional area [ C ] 0.20 percent of gross cross sectional area [ D ] 0.25 percent of gross cross sectional area.

Last Answer : [ A ] 0.12 percent of gross cross sectional area

What are the safety precautions when working on electrical equipments?

Description : What are the safety precautions when working on electrical equipments?

Last Answer : Switch off power, wear proper protective clothing, safety shoes, Notice board : Do not switch on - Men at work, stand on rubber mat, remove metal rings, watch bracelets, use proper insulated tools, ... work permit. In case of electrical shock, give proper first aid, check heart beat and pulse.

List any four internal causes for abnormal operation of electrical equipment’s.

Description : List any four internal causes for abnormal operation of electrical equipment’s. 

Last Answer : Internal causes:- 1. Open circuit 2. Short circuit 3. Earth fault 4. Loose connection 5. Deposit of dirt and dust near ventilation passage 6. Low insulation resistance 7. Improper maintenance 8. Poor ... problems 13. Failure of cooling system 14. Excess wear and tear of internal parts 15. Ageing.

Silicon percentage in iron castings to have maximum hardness should be about (A) 0.3 (B) 0.5 (C) 0.8 (D) 2.5

Description : Silicon percentage in iron castings to have maximum hardness should be about (A) 0.3 (B) 0.5 (C) 0.8 (D) 2.5

Last Answer : (C) 0.8

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Description : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Last Answer : 22

A national random sample of 20 ACT scores from 2010 is listed below. Calculate the sample mean and standard deviation. 29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18 a. 20.50, 5.79 b. 20.50, 5.94 c. 20.85, 5.79 d. 20.85, 5.94

Description : A national random sample of 20 ACT scores from 2010 is listed below. Calculate the sample mean and standard deviation. 29, 26, 13, 23, 23, 25, 17, 22, 17, 19, 12, 26, 30, 30, 18, 14, 12, 26, 17, 18 a. 20.50, 5.79 b. 20.50, 5.94 c. 20.85, 5.79 d. 20.85, 5.94

Last Answer : Katie earned 84,92,84,75 and 70 on her first 5 tests. What is the minimum grade Katie needs to earn on the next test to have a mean of 84?

Purchased cost of equipments for a chemical process plant ranges from __________ percent of the fixed capital investment. (A) 10 to 20 (B) 20 to 40 (C) 45 to 60 (D) 65 to 75

Description : Purchased cost of equipments for a chemical process plant ranges from __________ percent of the fixed capital investment. (A) 10 to 20 (B) 20 to 40 (C) 45 to 60 (D) 65 to 75

Last Answer : (B) 20 to 40

Don't leave any electrical appliances on unattended or what?

Description : Don't leave any electrical appliances on unattended or what?

Last Answer : I usually leave appliances connected unless I'm going away for an extended period of time. I pull out all plugs if I'm going off on holiday but I don't really think it is necessary. The main fuse box ... home electrics are much safer now than in days gone by. But I still don't like to take chances.

One should not connect a number of electrical appliances to the same power socket because 1. this can damage the appliances 2. this can damage the domestic wiring due to overheating 3. the appliances will not get full voltage Which of the above is/are valid reasons? (a) 2 and 3 (b) 2 only (c) 1 and 2 (d) 3 only

Description : One should not connect a number of electrical appliances to the same power socket because 1. this can damage the appliances 2. this can damage the domestic wiring due to overheating 3. the appliances will not get full voltage Which ... valid reasons? (a) 2 and 3 (b) 2 only (c) 1 and 2 (d) 3 only

Last Answer : Ans:(b)

Safety fuse wire used in domestic electrical appliances is made of metal of low (1) Resistance (2) Melting point (3) Specific gravity (4) Conductance

Description : Safety fuse wire used in domestic electrical appliances is made of metal of low (1) Resistance (2) Melting point (3) Specific gravity (4) Conductance

Last Answer : (2) Melting point Explanation: The fuse wire is based on the Joules law of heating which says that when the electric current is allowed to pass through a conductor, the conductor heats up and is ... . For this purpose the material used as fuse wire should have high resistance and low melting point.

All electrical appliances are connected in parallel to each other between the main line and neutral wire to get a. same current b. same current and potential difference c. different current but same potential difference d. different current and potential differences

Description : All electrical appliances are connected in parallel to each other between the main line and neutral wire to get a. same current b. same current and potential difference c. different current but same potential difference d. different current and potential differences

Last Answer : c. different current but same potential difference

Indicate power of following electrical appliances?

Description : Indicate power of following electrical appliances?

Last Answer : Ans. Incandescent Lamp The incandescent lamp is the oldest electric light source still in general use.The incandescent lamp produces its light by the electrical heating of a wire (the filament ... The heat in the heating coil causes expansion in the thermostat which gradually disconnects the supply.

Ozone in the upper atmosphere is produced from: w) lightning x) photochemical reactions y) electrical appliances on Earth z) model fractals

Description : Ozone in the upper atmosphere is produced from: w) lightning x) photochemical reactions y) electrical appliances on Earth z) model fractals

Last Answer : ANSWER: X -- PHOTOCHEMICAL REACTIONS 

Safety fuse wire used in domestic electrical appliances is made of metal of low (1) Resistance (2) Melting point (3) Specific gravity (4) Conductance

Description : Safety fuse wire used in domestic electrical appliances is made of metal of low (1) Resistance (2) Melting point (3) Specific gravity (4) Conductance

Last Answer : Melting point

Electrical appliances are not connected in series, because :

Description : Electrical appliances are not connected in series, because :  a) Power loss is more b) Series circuit is complicated c) Appliances have different current rating d) None of these

Last Answer : a

why the electrical appliances are connected in parallel ?

Description : why the electrical appliances are connected in parallel ?

Last Answer : If the appliances connected in series if one of the appliances fails to work other appliances also doesn't work because the current doesn't flow in the appliances.so ,we connect appliances in parallel that if any one of the appliances fails to work it doesn't effect other appliances .

15) A retailer of ****** dog food prices at 75 pence a can of dog food. It cost the retailer 60 pence. What is the markup as a percentage of cost? A)8 percent B)25 percent C)20 percent D)12.5 percent

Description : 15) A retailer of Brandy dog food prices at 75 pence a can of dog food. It cost the retailer 60 pence. What is the markup as a percentage of cost? A)8 percent B)25 percent C)20 percent D)12.5 percent

Last Answer : B)25 percent

Percentage of carbon content in mild steel is (A) Less than 0.25 (B) Between 0.25 and 0.7 (C) Between 0.7 and 1.5 (D) Greater than 1.5

Description : Percentage of carbon content in mild steel is (A) Less than 0.25 (B) Between 0.25 and 0.7 (C) Between 0.7 and 1.5 (D) Greater than 1.5

Last Answer : Answer: Option A

Minimum percentage area of tension reinforcement , when the grade of steel is Fe-250 [ A ] 0.2 [ B ] 0.25 [ C ] 0.34 [ D ] 0.44

Description : Minimum percentage area of tension reinforcement , when the grade of steel is Fe-250 [ A ] 0.2 [ B ] 0.25 [ C ] 0.34 [ D ] 0.44

Last Answer : [ C ] 0.34

Approximately what percentage of the electricity produced in the United States is consumed by residential appliances? w) 20% x) 33% y) 50% z) 66%

Description : Approximately what percentage of the electricity produced in the United States is consumed by residential appliances? w) 20% x) 33% y) 50% z) 66% 

Last Answer : ANSWER: X -- 33% 

If the percentage modulation of an AM amplifier is 88% and the modulating signal is 1 volt, the carrier has an amplitude of _______________. A. 1.14 volts B. 0.88 volt C. 1.88 volts D. 0.12 volt

Description : If the percentage modulation of an AM amplifier is 88% and the modulating signal is 1 volt, the carrier has an amplitude of _______________. A. 1.14 volts B. 0.88 volt C. 1.88 volts D. 0.12 volt

Last Answer : A. 1.14 volts

What's the deal with stainless-steel appliances?

Description : What's the deal with stainless-steel appliances?

Last Answer : mostly aesthetics, they go with anything or any color you want to put in the room.

Decorating question: Are stainless steel sinks and appliances the only ones that are popular?

Description : Decorating question: Are stainless steel sinks and appliances the only ones that are popular?

Last Answer : I watch a ton of home renovation shows. Stainless steel indeed is the way to go, as well as granite. It's always a tricky thing for a homeowner to fix the kitchen themselves. Most newbie home ... on their own anyhow. But that's just my experience from watching HGTV (I love Property Brothers!)

How do you remove water stains from stainless steel appliances?

Description : How do you remove water stains from stainless steel appliances?

Last Answer : Google it.

What is the best way to keep fingerprints from showing up on stainless steel kitchen appliances?

Description : What is the best way to keep fingerprints from showing up on stainless steel kitchen appliances?

Last Answer : There is no permanent answer. Use and all purpose cleaner followed by a stainless steel polish on a regular basis.

How can I remove scratches and dents from my stainless steel appliances?

Description : How can I remove scratches and dents from my stainless steel appliances?

Last Answer : There is an article on professionalmechanics.com that give you tips on how to remove dents and scratches. The specify cars but you could try on your refrigerator to see if it works

Addition of 0.3 to 4.5% silicon to iron _____ the electrical resistivity of iron.

Last Answer : Addition of 0.3 to 4.5% silicon to iron increases the electrical resistivity of iron.

A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the joist will be, (A) 10 m (B) 12 m (C) 14 m (D) 16 m

Description : A rolled steel joist is simply supported at its ends and carries a uniformly distributed load which  causes a maximum deflection of 10 mm and slope at the ends of 0.002 radian. The length of the  joist will be,  (A) 10 m  (B) 12 m  (C) 14 m  (D) 16 m 

Last Answer : (D) 16 m 

Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese. (A) 1.5-2 (B) 3.5-4.5 (C) 7-9 (D) 12-14

Description : Austenitic manganese steel used for making jaws of crushing machines contains about __________ percent manganese. (A) 1.5-2 (B) 3.5-4.5 (C) 7-9 (D) 12-14

Last Answer : (D) 12-14

Select the incorrect statement from the following [ A ] Reinforcing bars in a column should not be less than 12 mm in diameter [ B ] The number of longitudinal bars in a circular column should not exceed four [ C ] The minimum percentage of longitudinal steel in columns should be 0.8% [ D ] None of the above

Description : Select the incorrect statement from the following [ A ] Reinforcing bars in a column should not be less than 12 mm in diameter [ B ] The number of longitudinal bars in a circular column should not ... The minimum percentage of longitudinal steel in columns should be 0.8% [ D ] None of the above

Last Answer : [ B ] The number of longitudinal bars in a circular column should not exceed four

The maximum percentage of chromium that can be added to steel is about (A) 12 (B) 18 (C) 24 (D) 30

Description : The maximum percentage of chromium that can be added to steel is about (A) 12 (B) 18 (C) 24 (D) 30

Last Answer : (B) 18

The usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are (a) 0.5 to 0.8 Wb/m2 (b) 0.8 to 1.0 Wb/m2 (c) 1.1 to 1.35 Wb/m2 (d) 1.4 to 1.8 Wb/m2

Description : The usual values of maximum flux densities for distribution transformers using hot rolled silicon steel are (a) 0.5 to 0.8 Wb/m2 (b) 0.8 to 1.0 Wb/m2 (c) 1.1 to 1.35 Wb/m2 (d) 1.4 to 1.8 Wb/m2

Last Answer : (c) 1.1 to 1.35 Wb/m2

The fermenter used in the production of penicillin (by deep fermentation process) is made of (A) Glass (B) Glass lined steel (C) High silicon cast iron (D) Porcelain

Description : The fermenter used in the production of penicillin (by deep fermentation process) is made of (A) Glass (B) Glass lined steel (C) High silicon cast iron (D) Porcelain

Last Answer : (B) Glass lined steel

Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin

Description : Which of the following materials may prove unsuitable for handling acetic acid (glacial & anhydrous) at 40°C? (A) Silicone rubber, teflon, porcelain and wood (B) Nickel, monel, stainless steel and graphite (C) Aluminium, copper, high silicon iron (D) Brass, cast iron, mild steel and tin

Last Answer : (D) Brass, cast iron, mild steel and tin

Specify the material of construction suitable for handling concentrated HNO3 at 100°C. (A) High silicon iron, Kel-F and Teflon (B) Tin and wood (C) Silicone rubber (D) Stainless steel

Description : Specify the material of construction suitable for handling concentrated HNO3 at 100°C. (A) High silicon iron, Kel-F and Teflon (B) Tin and wood (C) Silicone rubber (D) Stainless steel

Last Answer : (A) High silicon iron, Kel-F and Teflon