1 Answer

Answer :

Two holes in the disc of energy meter are drilled at the opposite sides of the spindle to eliminate creeping at no load

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Description : In cement pressure grouting G.I pipes of diameter …… and ……length, should be fixed in drilled holes a) 12 to 20 mm, 200 mm* b) 12 to 20 mm, 300 mm c) 12 to 25 mm, 500 mm d) 20 to 25 mm, 300 mm

Last Answer : a) 12 to 20 mm, 200 mm*

Description : In cement pressure grouting holes should be drilled at spacing in both direction at a) 150 – 500 mm b) 450 mm c) 500 – 750 mm* d) 1000 mm

Last Answer : c) 500 – 750 mm*

Description : The figure shows the front view of a convex lens, which originally had only one edge. Five holes of different shapes, namely triangle, square, pentagon, hexagon and circle, were drilled through it at points P ... . What is the total number of edges in the lens after the holes were drilled? 

Last Answer : 57

Description : Select the correct option with respect to mitosis. (a) Chromatids separate but remain in the centre of the cell in anaphase. (b) Chromatids start moving towards opposite poles in telophase. (c ... . (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.

Last Answer : (d) Chromosomes move to the spindle equator and get aligned along equatorial plate in metaphase.

Description : State the function and shape of following parts used in induction type energy meter: i) Series magnet ii) Shunt magnet iii) Al disc iv) Brake magnet

Last Answer : i) Series magnet: produce flux proportional to current (load current) of circuit and interact in the aluminum disc with flux produced by voltage magnet for torque production. Its shape is like letter U.  ii) ... : brakes the motion of the aluminum disc or slows it down. Its shape is like letter C. 

Description : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is (A) 1.2 kW (B) 1 kW (C) 600 W (D) 500 W

Last Answer : The disc of a single phase Induction-type energy meter makes 60 revolutions in 6 minutes. Meter Constant is 1200 rev/kWh. Power consumption in the load is 500 W

Description : For controlling the vibration of the disc of ac energy meter, damping torque is produced by

Last Answer : For controlling the vibration of the disc of ac energy meter, damping torque is produced by Eddy current

Description : In an induction type energy meter, the steady speed attained by the rotating disc is  1. Proportional to the deflecting torque. 2. Proportional to the resistance of the path of eddy currents. 3. ... 4. Inversely proportional to the square of brake magnet flux.  Which of the above are correct ?

Last Answer : In an induction type energy meter, the steady speed attained by the rotating disc is 1. Proportional to the deflecting torque. 2. Proportional to the resistance of the path of eddy currents. 3. Inversely proportional to ... brake magnet flux. Which of the above are correct ? 1, 2, 3 and 4 

Description : An induction type energy meter is found to run fast. Correction for this error can be made by  (A) Over-load compensation. (B) Voltage compensation. (C) Moving the brake magnet away from the centre of the disc. (D) Moving the brake magnet towards the centre of the disc.

Last Answer : An induction type energy meter is found to run fast. Correction for this error can be made by Moving the brake magnet away from the centre of the disc.

Description : A 200 V, 5 A d.c. energy meter is tested at its marked ratings. The resistance of the pressure circuit is 8000 Ω and that of current coil is 0.1 Ω. The power consumed when testing the meter with phantom loading with current circuit excited by a 6 V battery is (A) 2.5 W (B) 5 W (C) 32.5 W (D) 35 W

Last Answer : A 200 V, 5 A d.c. energy meter is tested at its marked ratings. The resistance of the pressure circuit is 8000 Ω and that of current coil is 0.1 Ω. The power consumed when testing the meter with phantom loading with current circuit excited by a 6 V battery is 35 W

Last Answer : In an energy meter braking torque is produced to maintain steady speed and equal to driving torque

Last Answer :  Various adjustments in an energy meter include light load or friction, lag and creep, overload and voltage compensation.

Last Answer : The adjustment of position of shading bands, in an energy meter is done to provide friction compensation.

Last Answer : The household energy meter is an integrating instrument.

Last Answer : The disc of an instrument using eddy current damping should be of conducting and non-magnetic material.

Description : Why are we perpetually drilled to conflate capitalism with freedom?

Last Answer : I don’t necessarily equate the two.

Description : How deep a hole has ever been drilled by humans on Mars?

Last Answer : Since we just got there, I think the answer would be: no holes at all yet. . . . unless I’ve missed the latest news.

Description : What would happen if a hole was drilled straight through the Earth from one side to the other and someone jumped in?

Last Answer : Their hair would get all messed up.

Description : I have a 1967 quarter that has a hole in it can you can somebody help me 2 see if it's worth anything or it's just somebody drilled the hole into it?

Last Answer : Here's a picture

Description : Explain why water comes out at different speeds when a water-filled container is drilled at different depths ?

Last Answer : Pressure will be applied to a point inside the static fluid িক proportional to the depth and density of the point. So the pressure increases as the depth of the fluid increases. If the area remains ... , the force increases as the pressure increases. And as the force increases, so does the velocity.

Description : How much does the well cost?

Last Answer : Different for each company. It also depends on the subsoil, often also on the depth. Generally speaking, 1 m drilling is around 900 - 1400 CZK. From 30 meters up, the price usually increases a bit.

Description : Why is sand falling? Does it matter if there are small stones left?

Last Answer : In my opinion, it is rebuked so that it is smooth and no stone protrudes from it. But the stones are the same as fittings, for example.

Description : I found out that someone drilled my tank and I'm out of gas. I'll have him towed to a service station. But I wonder how much it will cost. Is the hole going to boil? Or does he have to buy the whole tank?

Last Answer : you can do both, but if it's just a hole, it's probably riveted

Description : A uniform solid sphere of radius R has a hole of radius R/2 drilled inside it. One end of the hole is at the centre of the sphere

Last Answer : A uniform solid sphere of radius R has a hole of radius R/2 drilled inside it. One end ... boundary. Locate centre of mass of the remaining sphere.

Description : If to torricelli had drilled a little hole at the top of the glass tube holding his mercury column what would have happened to his barometer?

Last Answer : He would not have had a barometer. He would have had a glass tube stuck into a bowl of Mercury, with nothing in it. Because once the hole was made the vacuum would be gone and the Mercury would fall back down to the bowl.It takes the vacuum in the tube to create a barometer.

Description : Where was the world’s first oil-well drilled in the nineteenth century?

Last Answer : Titusfills in Pennsylvania, U.S.A.

Description : Where was the world's first oil-well drilled in the nineteenth century

Last Answer : century? Titusfills inPennsylvania, U

Description : The compaction of concrete in the drilled pile hole is done by compressed air in the case of (A) Simplex pile (B) Franki pile (C) Pressure pile (D) Vibro pile

Last Answer : Answer: Option C

Description : Pick up the correct statement from the following: (A) The pile driven in sand is called sand pile (B) The drilled hole filled with sand is called sand pile (C) The sand piles are used for bearing purposes (D) None of these

Last Answer : Option A

Description : Choose proper machine tool and explain operation method for the following: (i) Producing a hole (ii) Finishing previously drilled hole

Last Answer : MACHINE TOOL : Drilling Machine (i) Producing a hole: Drilling operation (Fig 1 mark ,explanation 2 mark) : It is an operation of producing a circular hole in a work piece by forcing a drill against ... is held in the tailstock and it is fed into the hole in the similar way as for drilling.  

Description : “If you drilled a tunnel straight through the Earth and jumped in, it would take you 42 minutes 12 seconds to get to the other side.” 

Last Answer : The idea is that you would accelerate towards the centre through the effects of gravity, and be decelerated by gravity when approaching the other side. Unfortunately this is not very practical, and along the way, ... that are believed to exceed 6,000 degrees C, about that of the surface of the sun.

Last Answer : In a Weston frequency meter, the magnetic axes of the two fixed coils are perpendicular.

Last Answer : In a vibrating reed frequency meter the natural frequencies of two adjacent reeds have a difference of 0.5 Hz.

Last Answer : In a dynamometer 3-phase power factor meter, the planes of the two moving coils are at 120°.

Last Answer : In a single phase power factor meter the phase difference between the currents in the two pressure coils is exactly 90°.

Last Answer : The two pressure coils of a single phase power factor meter have the same dimensions and the same number of turns.

Description : A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the variable capacitor is adjusted to a value of 300 pF. A lossless capacitor of unknown value Cx is then connected in ... value of 200 pF. The value of Cx in pF is  A) 100 B) 200 C) 300 D) 500

Last Answer : A reading of 120 is obtained when a standard inductor was connected in the circuit of a Q-meter and the variable capacitor is adjusted to a value of 300 pF. A lossless capacitor of unknown value Cx is ... when the variable capacitor is readjusted to a value of 200 pF. The value of Cx in pF is 100 

Description : For measurement of radio frequency ac signals __________ type meter is used

Last Answer : For measurement of radio frequency ac signals thermo-couple type meter is used

Description : A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is

Last Answer : A moving coil of meter has 100 turns, and a length and depth of 10mm and 20mm respectively. It is positioned in a uniform radial flux density of 200 mT. The coil carrier current capacity is 50 mA. The torque on the coil is 200µNm

Description : The meter which does not have any component in it to provide control torque is (A) Electrodynamometer for current measurement (B) Electrodynamometer for voltage measurement (C) Electrodynamometer for power measurement. (D) Electrodynamometer for power factor measurement.

Last Answer : The meter which does not have any component in it to provide control torque is Electrodynamometer for power factor measurement.

Description : Identify the instrument that does not exist (A) Dynamo-meter type ammeter (B) Dynamo-meter type wattmeter (C) Moving-iron voltmeter (D) Moving-iron wattmeter

Last Answer : Identify the instrument that does not exist (A) Dynamo-meter type ammeter (B) Dynamo-meter type wattmeter (C) Moving-iron voltmeter (D) Moving-iron wattmeter

Last Answer : The principle of operation of Q-meter is based on Series resonance.

Last Answer : An ideal meter should have Absolutely no effect on the circuit being measured.

Last Answer : In a moving iron meter, the deflecting torque is proportional to Square of the current through the coil.

Last Answer : MISC meter not recommended for DC measurement because the error is high due to the hysteresis effect.

Last Answer : For high accuracy the meter has Hand drawn scale.

Last Answer : A moving coil instrument is used as an ohmmeter. The indicating scale of the meter will be Hyperbolic.

Description : It is desired to convert a 0-1000A meter movement, with an internal resistance of 100 ohms, into a 0-100mA meter. The required value of shunt resistance is about 

Last Answer : It is desired to convert a 0-1000A meter movement, with an internal resistance of 100 ohms, into a 0-100mA meter. The required value of shunt resistance is about 1 ohms.

Last Answer : To measure radio frequency, the suitable frequency meter is heterodoxy frequency meter.

Last Answer : In a dynamo-meter type of moving coil instrument a swamping resistance is provided inorder to: Provide equal time constant for moving coil and fixed coil, when used for ac measurement