Description : State two applications of : (i) PVC paper (ii) Porcelain with type of class based on withstand temperature is insulating material.
Last Answer : (i) Application of PVC paper : 1. It is used in slot lining or motor winding insulation purpose 2. For Insulation of Transformer winding (ii) Application of Porcelain : 1. Mainly used for manufacturing ... on withstand temperature : * H' & C' Class of insulation i e. 180° and above 180°C
Description : Pick up the correct statement from the following: (A) The low voltage porcelain is prepared by wet process (B) The high voltage porcelain is prepared by dry process (C) The low voltage porcelain is prepared by dry process (D) None of the above
Last Answer : Answer: Option C
Description : A three-phase electrical system is equipped with ground detecting lamps. If one of the lamp goes dark and the other two burn normally before and after the test switch is operated, this indicates _______________. ... of the three phases D. the voltage to the dark lamp is less than that of the system
Last Answer : Answer: A
Description : Brass tubes are used in the manufacture of tubes of evaporators used in sugar and salt industries, mainly because of its (A) High co-efficient of thermal expansion (B) Low thermal conductivity (C) High corrosion resistance (D) All (A), (B) and (C)
Last Answer : (C) High corrosion resistance
Description : On electrical generators one of the bearings is isolated from the bedplate. This insulating block should not be painted and must be kept clean to ___________. A. protect operating personnel from shock ... the prime mover as it warms up D. eliminate shaft currents to prevent damaging the bearings
Last Answer : Answer: D
Description : If the bearings of an electrical generator are failing more frequently than expected and the lubricating oil is sludging then you should ______________. A. check the connections to the output leads B. ... replace the bearing with a sealed roller type D. replace the thrust bearing of the prime mover
Last Answer : Answer: B
Description : On some electrical generating equipment one outboard bearing pedestal is insulated from the bedplate. This should be checked with a millivolt meter and a jumper. With the millivolt meter connectd between ... then removed to take a second reading. This eliminates the insulating effect of the bearing.
Description : The ground detection system, shown in the illustration for a low-voltage, threephase system has a ground in line 'A'. Therefore, lamp 'A' will burn ____________. EL-0009 A. dimly or be out, and lamps 'B' and ... and 'C' will burn dimly or be out D. brightly, and lamps 'B' and 'C' will burn normally
Description : How To Fix A Lamp With A Broken Switch?
Last Answer : Quick Tip -- You Can Save Your Favorite LampLike almost anything else in your home, your lamp can wear down over time. Eventually, its switch may stop working or its bulb might flicker constantly, but a ... switch. You'll save money and you'll never have to throw away one of your favorite lamps.
Description : In the illustrated ground detection system with a ground on phase A, if the switch is opened __________. EL-0009 A. lamp A will dim or go out depending on the severity of the ground B. all three ... lamp A will be brighter D. lamp A will start flickering if the ground is in an AC induction motor
Description : Draw and explain how one lamp can be controlled by two switch. State application of it.
Last Answer : Write down the application of two-way switche
Description : What is SSL (Secure Sockets Layer)? (easy words)
Last Answer : answer:Easy words. SSL is a method of scrambling (or encrypting) web communications so that the only people that can read it are the sender and the receiver. To everyone else it is gobbledegook. - It is more complicated than that, of course.
Description : If I have a 110v outlet and plug in a power strip with five sockets, why do I get 110v out of each instead of 22v?
Last Answer : answer:Because of the type of circuit used. This is called a parallel circuit. Compare voltage to water pressure. If you would poke multiple holes at the same height from the bottom of a bucket full ... the pressure at each hole stays the same, independent from other holes you'd poke in the bucket.
Description : What are the web sockets? -Web-Development
Last Answer : answer:
Description : How many types of sockets and what are they ?
Last Answer : There are three types of sockets. * Two pin socket * Three pin socket * Five pin socket.
Description : What plastic is used in plug sockets?
Last Answer : Need answer
Description : What is the application and use of a range of electrical components Such as plugs switches sockets lighting and fittings junction boxes consumer units.?
Description : ALU and Control Unit have special purpose locations called _______ (A) Registers (B) Mother Board (C) Sockets (D) None of the Above
Last Answer : (A) Registers
Description : Google cloud SQL Features a) Lets your application read files from and write files to buckets in Google cloud storage b) A Fully -managed web service that allows you to create , ... large applications into logical components that can be share stateful services and communicate in secure fashion.
Last Answer : A Fully –managed web service that allows you to create , configure , and use relational databases that live in Google’s cloud
Description : Explain why plugs, sockets and switches are made of plastic.
Last Answer : Ans: They are made of plastic because plastic is an insulator and does not allow electricity to pass through it.
Description : May sockets be provided in the wall of a fitting? a) No. b) Yes. c) Yes, in accordance with ASME B16.5, figure 4. d) Yes, as permitted in ASME B16.20.
Last Answer : c) Yes, in accordance with ASME B16.5, figure 4.
Description : When a transaction is processed online, how can the merchant verify the customer's identity? a. use secure sockets layers b. use secure electronic transactions c. use electronic data interchange d. use financial electronic data interchange
Last Answer : b. use secure electronic transactions
Description : Secure Sockets Layers does which of the following? a. creates a secure, private connection to a web server b. encrypts information c. sends information over the internet d. all of the above
Last Answer : d. all of the above
Description : AC power plugs and sockets
Last Answer : .embed-container { position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden; max-width: 100%; } .embed-container iframe, .embed-container object, .embed-container embed { position: absolute; top: 0; left: 0; width: 100%; height: 100%; }
Description : The coloured discharge tubes for advertisement mainly contains
Last Answer : The coloured discharge tubes for advertisement mainly contains A. Xe B. He C. Ne D. Ar
Description : The ciliated epithelial cells are required to move particles or mucus in a specific direction. In humans, these cells are mainly present in (a) bronchioles and Fallopian tubes (b) bile duct and bronchioles (c) Fallopian tubes and pancreatic duct (d) Eustachian tube and salivary duct
Last Answer : (a) bronchioles and Fallopian tubes
Description : The coloured discharge tubes for advertisement mainly contain (1) Xenon (2) Argon (3) Helium (4) Neon
Last Answer : Neon
Description : What happens insulators when high voltage passes through transmission lines whether it breaks or lose it's insulating property?
Last Answer : I think it will breaks when it crosses breakdown voltage .
Description : Porcelain is used as: (A) Sanitary wares (B) Electric insulators (C) Storage vessels (D) Reactor chambers
Last Answer : Answer: Option D
Description : Which one of the following is used for preparing porcelain? (A) Clay (B) Feldspar (C) Quartz (D) All of these
Description : The 'reset' contacts of the master switch shown in the illustration provides the winch controller with ___________. EL-0102 A. low voltage release B. overload protection C. low voltage protection D. high power factor correction
Last Answer : Answer: C
Description : Low thermal conductivity of heat insulating materials is due to its (A) Dense structure (B) High proportion of air space (C) High specific heat (D) None of these
Last Answer : (B) High proportion of air space
Description : Consider the following four conditions (1 - 4) and select a correct pair of them as adaptations to environment in desert lizards. Conditions: 1. Burrowing in soil to escape high temperature. 2. Losing heat rapidly from the body during ... to thick fatty dermis. (a) 3, 4 (b) 1, 3 (c) 2, 4 (d) 1, 2
Last Answer : (b) 1, 3
Description : Dielectric (A) Is an electrical insulating material (B) Of low resistivity is preferred (C) Should have high thermal conductivity (D) Need not defy the corrosive action of chemicals
Last Answer : (A) Is an electrical insulating material
Description : The insulating material should have (a) low permittivity (b) high resistivity (c) high dielectric strength (d) all of the above
Last Answer : (d) all of the above
Description : The insulating material for a cable should have (a) low cost (b) high dielectric strength (c) high mechanical strength (d) all of the above
Description : Gold and silver are (A) dielectric materials (B) low resistivity conducting materials. (C) magnetic materials. (D) insulating materials.
Last Answer : (B) low resistivity conducting materials.
Description : Cold-cathode tubes can be used as voltage regulators because of what characteristic?
Last Answer : They have the ability to maintain a constant voltage drop across the tube despite changes in current flow.
Description : The purpose of choke in a fluorescent lamp is – (1) to increase the current flow (2) to decrease the current flow (3) to decrease the resistance (4) to decrease the voltage momentarily
Last Answer : (2) to decrease the current flow Explanation: The choke primarily serves to limit current flow to the correct level for the tube. It also can be used during startup to provide an inductive 'kick' forming a momentary highervoltage pulse to start the lamp.
Description : A lamp has a source voltage of 110 volts and a current of 0.9 amps. What is the resistance of the lamp? A. 0.008 ohms B. 0.08 ohms C. 12.22 ohms D. 122.22 ohms
Description : After turning on the fluorescent lamp shown in the illustration, you note that the ends of the tube alternately glow and becomce dark without illuminating the center. The most obable cause for ... the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow
Description : The illustration shows a fluorescent light fixture. The ends of the lamp alternately glow and become dark, but the tube will not light. The most probable cause is that ____________. EL-0081 ... start the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow
Description : In the illustrated test, if the lamp fails to light on any of the three windings then _________. EL-0027 A. all three windings are grounded and the motor should be sent out for repair B. ... the motor controller and the controller should be checked D. the test should be redone at a higher voltage
Description : One method of testing for a reversed shunt field coil in a DC generator or motor is by connecting the field to a direct current source, at reduced field rated voltage, and test for ... placed near each field C. test lamp across adjacent fields D. copper jumper across the interpole connections
Description : During start-up of the circuit shown in the illustration, it is noted that the ends of component 'C' alternately glow and become dark without the tube illuminating. The most probable cause ... start the lamp D. component 'B' contacts are opening and closing thus prohibiting sufficient current flow
Description : If 200w, 100 w and 60 w lamps connected in series with 230V AC , which lamp glow brighter? Each lamp voltage rating is 230V.
Last Answer : Each bulb when independently working will have currents (W/V= I) For 200 Watt Bulb current (I200) =200/230=0.8696 A For 100 Watt Bulb current (I100) =100/230=0.4348 A ... current through it. So minimum power dissipated across it as min current X equal Voltage across =s min power dissipation
Description : The purpose of choke in a fluorescent lamp is : (1) to increase the current flow (2) to decrease the current flow (3) to decrease the resistance (4) ro decrease the voltage momentarily
Last Answer : to decrease the current flow
Description : If an incandescent lamp of 80 ohms resistance takes a current of 0.75 ampere, what voltage is required to light it? A.45 volts B.60 volts c.23 volts D.None of these
Last Answer : V=IR = 80*0.75 = 60 volts
Description : The statement is used to transfer the control to the end of statement block in a loop. a. Continue b. Break c. Switch d. Goto
Last Answer : b. Break
Description : Which of the following are true with respect to the Indian Peninsular Plateau? 1. The southern plateau block is formed mainly of granites and gneiss 2. The Deccan lava plateau is an elevated tableland consisting of horizontally arranged ... III (b) I and II (c) I, II, III and IV (d) I, III and IV
Last Answer : Ans: (c)