Materials subjected to rapid reversal of magnetism should have

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Materials subjected to rapid reversal of magnetism should have high permeability and low hysteresis loss.

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Materials subjected to rapid reversal of magnetism should have (a) large area oiB-H loop (b) high permeability and low hysteresis loss (c) high co-ercivity and high retentivity (d) high co-ercivity and low density

Description : Materials subjected to rapid reversal of magnetism should have (a) large area oiB-H loop (b) high permeability and low hysteresis loss (c) high co-ercivity and high retentivity (d) high co-ercivity and low density

Last Answer : (b) high permeability and low hysteresis loss

Magnetism of a magnet can be destroyed by

Last Answer : Magnetism of a magnet can be destroyed by heating, hammering, by inductive action of another magnet.

The commonly used material for shielding or screening magnetism is

Last Answer : The commonly used material for shielding or screening magnetism is soft iron.

The magnetism left in the iron after exciting field has been removed is known as

Last Answer : The magnetism left in the iron after exciting field has been removed is known as residual magnetism.

One of the generator bearing shells is generally insulated from the end housing in order to prevent _____________. A. rapid brush wear B. residual magnetism leak off C. excessive field winding heat D. circulation of shaft currents

Description : One of the generator bearing shells is generally insulated from the end housing in order to prevent _____________. A. rapid brush wear B. residual magnetism leak off C. excessive field winding heat D. circulation of shaft currents

Last Answer : Answer: D

Magnetism in materials is due to - (1) electrons at rest (2) circular motion of electrons (3) protons at rest (4) all neutrons at rest

Description : Magnetism in materials is due to - (1) electrons at rest (2) circular motion of electrons (3) protons at rest (4) all neutrons at rest

Last Answer : (2) circular motion of electrons Explanation: Myopia is commonly known shortsighted. It is a condition of the eye where the light that comes in does not directly focus on the retina but in ... most commonly correct myopia through the use of corrective lenses, such as glasses or contact lenses.

Magnetism in materials is due to (1) electrons at rest (2) circular motion of electrons (3) protons at rest (4) all neutrons at rest

Description : Magnetism in materials is due to (1) electrons at rest (2) circular motion of electrons (3) protons at rest (4) all neutrons at rest

Last Answer : circular motion of electrons

The magnetic materials exhibit the property of magnetisation because of

Last Answer : The magnetic materials exhibit the property of magnetisation because of spin of nucleus.

Paramagnetic materials have relative permeability

Last Answer : slightly more than unity

The materials having low retentivity are suitable for making

Last Answer : The materials having low retentivity are suitable for making temporary magnets.

Effect of moisture on the insulating materials is to

Last Answer : Effect of moisture on the insulating materials is to decrease dielectric constant, decrease dielectric strength, decrease insulation resistance, increase dielectric loss.

Low resistivity materials are used in

Last Answer : Low resistivity materials are used in transformer, motor and generator windings, transmission and distribution lines, house wiring.

Piezoelectric materials serve as a source of _____ .

Description : Piezoelectric materials serve as a source of _____ .

Last Answer : Piezoelectric materials serve as a source of ultrasonic waves.

High resistivity materials are used in?

Description : High resistivity materials are used in?

Last Answer : High resistivity materials are used in precision instruments, heating elements, motor starters, incandescent lamps.

Pick out the correct statement. (A) Hot worked materials are subjected to annealing to remove internal stresses (B) Annealing of steel hardens it slightly (C) Normalising of a material induces stresses (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness

Description : Pick out the correct statement. (A) Hot worked materials are subjected to annealing to remove internal stresses (B) Annealing of steel hardens it slightly (C) Normalising of a material induces stresses (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness

Last Answer : (D) Tempering of a material improves ductility & toughness but reduces hardness & brittleness Share

_________ are normally subjected to sub-zero treatment. (A) Highly stressed parts (B) Gauges or precision parts (C) Cold rolled sheets (D) Non machinable materials

Description : _________ are normally subjected to sub-zero treatment. (A) Highly stressed parts (B) Gauges or precision parts (C) Cold rolled sheets (D) Non machinable materials

Last Answer : (B) Gauges or precision parts

Dot development a system of for the rapid identification of hazardous materials?

Description : Dot development a system of for the rapid identification of hazardous materials?

Last Answer : Hazardous Materials Table The table listing all hazardous materials regulated by the Act for transportation used to be at www.phmsa.dot.gov/staticfiles/PHMSA/DownloadableFiles/Files/Hazmat/Alpha_Hazmat_Table ... the total quantity of hazardous materials the number and type of packages holding the

Do you think the Monarch butterfly's population increase in the past two years signals a permanent reversal of their decline?

Description : Do you think the Monarch butterfly's population increase in the past two years signals a permanent reversal of their decline?

Last Answer : answer:Way to early to tell, the population is still below 20% of what can be considered normal. I would not ascribe the small rebound as related to climate change, but more likely to a reduction in neonicotinoid use.

How can you see the back of your own head without left/right reversal?

Description : How can you see the back of your own head without left/right reversal?

Last Answer : Get a ladder, stand in front of a mirror, get laptop set on a ladder, turn on video mode, screen facing back of your neck, use mirror projection? Gl anyhow

Should there be health insurance coverage for female genital mutilation reversal surgeries?

Description : Should there be health insurance coverage for female genital mutilation reversal surgeries?

Last Answer : YES.

Reversal of a previous question. Foods that you love, but most people hate?

Description : Reversal of a previous question. Foods that you love, but most people hate?

Last Answer : Pickled herring. Anchovies.

What does it mean to go home for reversal?

Description : From the hospital? Will they offer it to everyone?

Last Answer : Well, it is so .... that even in the hospital they can not hold you by force unless it is ordered in court, for example. ... but you don't want to sign a reversal, it's actually just a formality for doctors to ... you're aware of the consequences that can occur if you leave ... . _ _ _ _ _ _ ☢ ☠ ☢

Can a urologist preform a vasectomy reversal?

Description : Can a urologist preform a vasectomy reversal?

Last Answer : Yes, urologists can perform a vasectomy reversal, but a vasectomy reversal can be more complicated that the original vasectomy. Patients should seek out urologists who have experience in vasectomy reversal and microsurgery techniques.

What are the statistics on the success of vasectomy reversal?

Description : What are the statistics on the success of vasectomy reversal?

Last Answer : Vasectomy reversal success rates depend on the type of procedure and how long since the vasectomy was done. The shorter the time since the vasectomy the greater the chance of success. Most studies ... the semen. The success rate of the female partner becoming pregnant appears to be lower however.

are there any vasectomy reversal doctors in town i have blue cross and blue shield.do they normally help with payment?

Description : are there any vasectomy reversal doctors in town i have blue cross and blue shield.do they normally help with payment?

Last Answer : A urologist handles matters of vasectomy reversal. Check with your insurance to find out what kind of coverage you have. It will be very specific to your policy. BC/BS can also give you a list of urologists in your area.

Monsoon is caused by (a) Temperature changes (b) Seasonal reversal of winds (c) Humidity difference (d) Pressure differences

Description : Monsoon is caused by (a) Temperature changes (b) Seasonal reversal of winds (c) Humidity difference (d) Pressure differences

Last Answer : Ans: (d)

A 65-year old patient has colon carcinoma metastatic to the liver and lungs. He has had a weight loss of 10 kg. Cytokine-dependent tumor cachexia is attributable to which of the following? a. Increased glucose uptake and increased glycogen breakdown occur in this circumstance. b. Suppressed activity of lipoprotein lipase results from TNFa c. TNFa stimulates lipolysis d. The differentiation process of pre-adipocytes is impaired e. Partial reversal of differentiated adipocytes to pre-adipocyte morphology and gene expression occurs

Description : A 65-year old patient has colon carcinoma metastatic to the liver and lungs. He has had a weight loss of 10 kg. Cytokine-dependent tumor cachexia is attributable to which of the ... is impaired e. Partial reversal of differentiated adipocytes to pre-adipocyte morphology and gene expression occurs

Last Answer : Answer: a, b, c, d, e Tumor cachexia appears to be mediated by TNFa. Lipopolysaccharide (LPS), as well as other cytokines, activate a variety of inflammatory cells, most ... chronic syndromes of anorexia, weight loss, and cachexia that are associated with both chronic infection and malignancy

Undervoltage trips are frequently installed on switchboard circuit breakers to trip ____________. A. out generators in the event of severe arcing or sparking B. out generators when there is reversal of power in the main circuit C. the breaker if the generator overspeeds by 5%, but continues to run D. out generators when there is low voltage in the main circuit

Description : Undervoltage trips are frequently installed on switchboard circuit breakers to trip ____________. A. out generators in the event of severe arcing or sparking B. out generators when there is reversal of power ... , but continues to run D. out generators when there is low voltage in the main circuit

Last Answer : Answer: D

The reversal of an AC, three-phase, induction motor is accomplished by ______________. A. changing all three motor leads B. reversing the position of the slip rings C. interchanging any two of the three motor leads D. interchanging any two brushes

Description : The reversal of an AC, three-phase, induction motor is accomplished by ______________. A. changing all three motor leads B. reversing the position of the slip rings C. interchanging any two of the three motor leads D. interchanging any two brushes

Last Answer : Answer: C

Seasonal reversal of wind direction takes place over the Indian subcontinent?

Description : Seasonal reversal of wind direction takes place over the Indian subcontinent?

Last Answer : Ans: Seasonal reversal of wind direction over the Indian subcontinent takes place due to pressure differential. El Nino has major role to play in the seasonal reversal of wind direction over the Indian subcontinent.

Monsoon is caused by----------? A. Seasonal reversal of winds (Answer) B. Revolution of earth C. Movement of clouds D. Rise in temperature E. Rain forests

Description : Monsoon is caused by----------? A. Seasonal reversal of winds (Answer) B. Revolution of earth C. Movement of clouds D. Rise in temperature E. Rain forests

Last Answer : A. Seasonal reversal of winds (Answer)

The action potential of a neuron a. is initiated by efflux of Na+ b. is terminated by efflux of K+ c. declines in amplitude as it moves along the axon d. results in a transient reversal of the concentration gradient of Na+ across the cell membrane e. is not associated with any net movement of Na+ or K+ across the cell membrane

Description : The action potential of a neuron a. is initiated by efflux of Na+ b. is terminated by efflux of K+ c. declines in amplitude as it moves along the axon d. results in a transient reversal of the ... the cell membrane e. is not associated with any net movement of Na+ or K+ across the cell membrane

Last Answer : is terminated by efflux of K+

Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? (A) 2CO ↔ C + CO2 (B) CO + H2O ↔ CO2 + H2 (C) C + H2O ↔ CO + H2 (D) C + 2H2O ↔ CO2 + 2H2

Description : Which of the following reactions occuring during coal gasification is called the Neumann reversal reaction? (A) 2CO ↔ C + CO2 (B) CO + H2O ↔ CO2 + H2 (C) C + H2O ↔ CO + H2 (D) C + 2H2O ↔ CO2 + 2H2

Last Answer : (A) 2CO ↔ C + CO2

The reaction, C + CO2 ↔ 2CO, taking place during coal gasification is called the __________ reaction. (A) Neumann reversal (B) Shift conversion (C) Boudouard (D) Reduction

Description : The reaction, C + CO2 ↔ 2CO, taking place during coal gasification is called the __________ reaction. (A) Neumann reversal (B) Shift conversion (C) Boudouard (D) Reduction

Last Answer : (C) Boudouard

The apparent error on reversal is (A) Equal to the actual error (B) Twice the actual error (C) Thrice the actual error (D) None of these

Description : The apparent error on reversal is (A) Equal to the actual error (B) Twice the actual error (C) Thrice the actual error (D) None of these

Last Answer : (B) Twice the actual error

Pick up the correct statement from the following: (A) The apparent error on reversal is twice the actual error (B) The correction may be made equal to half the observed discrepancy (C) The good results may be obtained from a defective instrument by reversing and taking the mean of two erroneous results (D) All the above

Description : Pick up the correct statement from the following: (A) The apparent error on reversal is twice the actual error (B) The correction may be made equal to half the observed discrepancy (C) The ... a defective instrument by reversing and taking the mean of two erroneous results (D) All the above

Last Answer : (D) All the above

The method of reversal (A) Is usually directed to examine whether a certain part is truly parallel or perpendicular to another (B) Makes the erroneous relationship between parts evident (C) Both (a) and (b) (D) Neither (a) nor (b)

Description : The method of reversal (A) Is usually directed to examine whether a certain part is truly parallel or perpendicular to another (B) Makes the erroneous relationship between parts evident (C) Both (a) and (b) (D) Neither (a) nor (b)

Last Answer : (C) Both (a) and (b

Which transistor configuration provides a phase reversal between the input and output signals?

Description : Which transistor configuration provides a phase reversal between the input and output signals?

Last Answer : Common emitter.

The junction between primary and secondary dentine is,*** A. A reversal line B. Sharp curvature C. A resting line D. A reduction in the number of tubules

Description : The junction between primary and secondary dentine is,*** A. A reversal line B. Sharp curvature C. A resting line D. A reduction in the number of tubules

Last Answer : B. Sharp curvature

main function of the current regulator is A. To prevent the reversal flow of current from the battery when dynamo speed is drops. B. To safeguard against flow of high currents to battery when armature develops more current. C. To prevent building up of high voltage in a circuit. D. None of the above

Description : main function of the current regulator is A. To prevent the reversal flow of current from the battery when dynamo speed is drops. B. To safeguard against flow of high currents to battery when armature develops ... . C. To prevent building up of high voltage in a circuit. D. None of the above

Last Answer : B. To safeguard against flow of high currents to battery when armature develops more current.

Main function of cutout relay in electrical circuit is A. To prevent the reversal of current flow from the battery when dynamo speed (engine speed) reduces. B. To restrict the maximum output at high speed. C. To permit the generation to deliver current to the battery or to the lightening and ignition circuit. D. None of the above

Description : Main function of cutout relay in electrical circuit is A. To prevent the reversal of current flow from the battery when dynamo speed (engine speed) reduces. B. To restrict the maximum output at ... deliver current to the battery or to the lightening and ignition circuit. D. None of the above

Last Answer : A. To prevent the reversal of current flow from the battery when dynamo speed (engine speed) reduces.

Which antileprotic drug suppresses lepra reaction and reversal reaction as well: A. Dapsone B. Rifampin C. Clofazimine D. Minocycline

Description : Which antileprotic drug suppresses lepra reaction and reversal reaction as well: A. Dapsone B. Rifampin C. Clofazimine D. Minocycline

Last Answer : C. Clofazimine

The neuromuscular blocker that does not need reversal of action by neostigmine at the end of the operation is: A. d-Tubocurarine B. Doxacurium C. Pipecuronium D. Mivacurium

Description : The neuromuscular blocker that does not need reversal of action by neostigmine at the end of the operation is: A. d-Tubocurarine B. Doxacurium C. Pipecuronium D. Mivacurium

Last Answer : D. Mivacurium

Vasomotor reversal phenomenon after administration of an α adrenergic blocker is seen with: A. Adrenaline B. Noradrenaline C. Isoprenaline D. All of the above drugs

Description : Vasomotor reversal phenomenon after administration of an α adrenergic blocker is seen with: A. Adrenaline B. Noradrenaline C. Isoprenaline D. All of the above drugs

Last Answer : A. Adrenaline

Vasomotor reversal phenomenon after administration of an α adrenergic blocker is seen with: A. Adrenaline B. Noradrenaline C. Isoprenaline D. All of the above drugs

Description : Vasomotor reversal phenomenon after administration of an α adrenergic blocker is seen with: A. Adrenaline B. Noradrenaline C. Isoprenaline D. All of the above drugs

Last Answer : A. Adrenaline

Triple tops & triple bottom are indicators of …. a. role reversal b. trend reversal c. both a & b d. high volumes

Description : Triple tops & triple bottom are indicators of …. a. role reversal b. trend reversal c. both a & b d. high volumes

Last Answer : Answer:c

The family of context sensitive languages is ................. under union and ................. under reversal. (A) closed, not closed (B) not closed, not closed (C) closed, closed (D) not closed, closed

Description : The family of context sensitive languages is ................. under union and ................. under reversal. (A) closed, not closed (B) not closed, not closed (C) closed, closed (D) not closed, closed

Last Answer : (C) closed, closed 

Which of the following statements is false? (1) Every context-sensitive language is recursive. (2) The set of all languages that are not recursively enumerable is countable. (3) The family of recursively enumerable languages is closed under union. (4) The families of recursively enumerable and recursive languages are closed under reversal.

Description : Which of the following statements is false? (1) Every context-sensitive language is recursive. (2) The set of all languages that are not recursively enumerable is countable. (3) The family ... under union. (4) The families of recursively enumerable and recursive languages are closed under reversal.

Last Answer : The set of all languages that are not recursively enumerable is countable.

The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density.

Description : The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density. When frequency is increased to 50 Hz., eddy current loss is :  (A) 256 W (B) 320 W (C) 500 W (D) 625 W

Last Answer : The eddy current loss in a dc generator is 400 W at 40 Hz frequency of reversal and constant flux density. When frequency is increased to 50 Hz., eddy current loss is : 625 W

Why don't magnets lose their magnetism?

Description : Why don't magnets lose their magnetism?

Last Answer : They can if you strike them. Unless it is a permanent magnet.