Systems for Protection from negative sequence current is provided normally for

Systems for Protection from negative sequence current is provided normally for (a) Transformers (c) Transmission lines (b) Generators (d) Motors
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Systems for Protection from negative sequence current is provided normally for Transmission lines

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For which of the following protection from negative sequence currents is provided ? (a) Generators (b) Motors (c) Transmission line (d) Transformers

Description : For which of the following protection from negative sequence currents is provided ? (a) Generators (b) Motors (c) Transmission line (d) Transformers

Last Answer : (a) Generators

The function of a government to provide goods that cannot normally be provided by market mechanisms between individual customers and producers, is known as: a) Distribution function b) Allocation function c) Stabilization d) Protection

Description : The function of a government to provide goods that cannot normally be provided by market mechanisms between individual customers and producers, is known as: a) Distribution function b) Allocation function c) Stabilization d) Protection

Last Answer : b) Allocation function

Explain negative phase sequence protection of alternator.

Description : Explain negative phase sequence protection of alternator.

Last Answer : Negative phase sequence protection of alternator: Unbalanced loading on alternator mainly causes the negative sequence currents which generate the negative sequence components of magnetic fields. These fields ... components due to unbalance and operates the relay which further operates CB.

A negative sequence relay is used for protection of

Description : A negative sequence relay is used for protection of  (1) Generator (3) Motor (2) Transformer (4) Long Transmission lines

Last Answer : A negative sequence relay is used for protection of Generator 

Where automatic restart does not present a hazard after a power failure, Coast Guard Regulations (46 CFR) require motor controllers for auxiliaries vital to the propelling equipment to be provided with ________________. A. overload protection B. low voltage protection C. low voltage release D. reverse current protection

Description : Where automatic restart does not present a hazard after a power failure, Coast Guard Regulations (46 CFR) require motor controllers for auxiliaries vital to the propelling equipment to be provided ... overload protection B. low voltage protection C. low voltage release D. reverse current protection

Last Answer : Answer: C

Protection against sustained overloads occurring in molded-case circuit breakers is provided by a/an __________. A. overvoltage release B. thermal acting trip C. thermal overload relay D. current overload relay

Description : Protection against sustained overloads occurring in molded-case circuit breakers is provided by a/an __________. A. overvoltage release B. thermal acting trip C. thermal overload relay D. current overload relay

Last Answer : Answer: B

State the nature of protection provided for following types of faults; 1) Over voltage 2) Under voltage 3) High air pressure in air circuit 4) Low air pressure in air circuit

Description : State the nature of protection provided for following types of faults; 1) Over voltage 2) Under voltage 3) High air pressure in air circuit 4) Low air pressure in air circuit

Last Answer : Ans:  1) Over voltage: Controlled through tap changing, only an alarm needs to be provided for attention of crew.  2) Under voltage: voltage below 17.5 kV is not desirable. A no volt ... 4) Low air pressure in air crcuit: Relay senses low pressure in air circuit and trips the relevant CB.

Impressed current cathodic protection is used on vessels instead of _________________. A. fire alarm systems B. repeated painting C. sacrificial zincs D. vacuum tube degaussing systems

Description : Impressed current cathodic protection is used on vessels instead of _________________. A. fire alarm systems B. repeated painting C. sacrificial zincs D. vacuum tube degaussing systems

Last Answer : Answer: C

The main difference between a motor control circuit containing low voltage protection and low voltage release is that the latter contains _____________. A. a magnetic operating coil B. normally open line contacts C. thermal-overload protection D. a momentary-contact start button

Description : The main difference between a motor control circuit containing low voltage protection and low voltage release is that the latter contains _____________. A. a magnetic operating coil B. normally open line contacts C. thermal-overload protection D. a momentary-contact start button

Last Answer : Answer: D

A series inductor is normally added in a thyrister circuit for achieving protection against:

Description : A series inductor is normally added in a thyrister circuit for achieving protection against:

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Reactance relay is normally preferred for protection against

Description : Reactance relay is normally preferred for protection against

Last Answer : Reactance relay is normally preferred for protection against earth faults

A procedure, or sequence of operations for determining whether a component or equipment is funcitoning or working normally.

Description : A procedure, or sequence of operations for determining whether a component or equipment is funcitoning or working normally.

Last Answer : Test

Large internal faults are protected by (a) merz price percentage differential protection (b) mho and ohm relays (c) horn gaps and temperature relays (d) earth fault and positive sequence relays

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Last Answer : (a) merz price percentage differential protection

They normally interact with the system via user interface provided by the application software. a) Programmers b) Developers c) Users d) Testers

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Last Answer : Answer: c Explanation: Users interact with the system via user interface that is given by the application software. An application software is a set of instructions designed to serve a particular purpose This set of Computer Fundamentals online test focuses on “Machine Languages”

Regenerators are normally provided in the (A) Glass melting furnace (B) Open hearth furnace (C) By product coke ovens (D) All (A), (B) and (C)

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Last Answer : (D) All (A), (B) and (C)

Regenerators are normally provided in the (A) Glass melting furnace (B) Open hearth furnace (C) By product coke ovens (D) All (A), (B) and (C)

Description : Regenerators are normally provided in the (A) Glass melting furnace (B) Open hearth furnace (C) By product coke ovens (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

Check rails should normally be provided where the radius is …. M or less in B.G. (a) 150m (b) 200m (c) 218m* (d) 240m

Description : Check rails should normally be provided where the radius is …. M or less in B.G. (a) 150m (b) 200m (c) 218m* (d) 240m

Last Answer : (c) 218m*

Check rails should normally be provided where the radius is ……. M or less in B.G. (a) 150m (b) 200m (c) 208m* (d) 225m

Description : Check rails should normally be provided where the radius is ……. M or less in B.G. (a) 150m (b) 200m (c) 208m* (d) 225m

Last Answer : (c) 208m*

One of the disadvantages of a franchise business for a franchisee is ________. A. Lack of independence. B. Franchise businesses typically have a high failure rate. C. Lack of brand identity. D. Training is not normally provided by the franchisor.

Description : One of the disadvantages of a franchise business for a franchisee is ________. A. Lack of independence. B. Franchise businesses typically have a high failure rate. C. Lack of brand identity. D. Training is not normally provided by the franchisor.

Last Answer : A. Lack of independence.

Provided that the ACT is reasonably normally distributed with a mean of 18 and standard deviation of 6, determine the proportion of students with a 33 or higher. a. 0.0062 b. 0.0109 c. 0.0124 d. 0.0217

Description : Provided that the ACT is reasonably normally distributed with a mean of 18 and standard deviation of 6, determine the proportion of students with a 33 or higher. a. 0.0062 b. 0.0109 c. 0.0124 d. 0.0217

Last Answer : a. 0.0062

In a national park protection is provided to: (a) Entire ecosystem (b) Flora and fauna (c) Fauna only (d) Flora only

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Last Answer : Ans. ((b))

Under which of the following Sections of the Protection of Civil Rights Act, 1955 has offences by companies been provided? (1) Section 10 (2) Section 12 (3) Section 14 (4) Section 16

Description : Under which of the following Sections of the Protection of Civil Rights Act, 1955 has offences by companies been provided? (1) Section 10 (2) Section 12 (3) Section 14 (4) Section 16

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Under which one of the following Sections of the Protection of Civil Rights Act, 1955 has power of State Government to impose collective fine been provided? (1) Section 10 (2) Section 10 A (3) Section 14 (4) Section 14 A

Description : Under which one of the following Sections of the Protection of Civil Rights Act, 1955 has power of State Government to impose collective fine been provided? (1) Section 10 (2) Section 10 A (3) Section 14 (4) Section 14 A

Last Answer : (4) Section 14 A Explanation: Under the Section 14A of the Protection of Civil Rights Act, 1955 has power of state Government to impose collective fine.

Under which one of the following Sections of the Protection of Civil Rights Act, 1955 has protection of action taken in good faith been provided? (1) Section 16 A (2) Section 15 A (3) Section 16 B (4) Section 14 A

Description : Under which one of the following Sections of the Protection of Civil Rights Act, 1955 has protection of action taken in good faith been provided? (1) Section 16 A (2) Section 15 A (3) Section 16 B (4) Section 14 A

Last Answer : (4) Section 14 A Explanation: Under Section 14 A, protection of the action taken in good faith in a section under the protection of the Civil Rights Act, 1955 has been provided.

Which of the following statements is true concerning the motor controller diagram shown in the illustration? EL-0023 A. Terminal 'T2' is hot only on high speed. B. Both indicating lights will be lit on both high and low speeds as they are connected to the common lead when the motor is running. C. Overload protection is provided for high speed operation only. D. 'L2' is always connected to 'T2' whenever the motor is running.

Description : Which of the following statements is true concerning the motor controller diagram shown in the illustration? EL-0023 A. Terminal 'T2' is hot only on high speed. B. Both indicating lights will be lit on ... high speed operation only. D. 'L2' is always connected to 'T2' whenever the motor is running.

Last Answer : Answer: D

How Transformer Protection provided for internal faults?

Description : How Transformer Protection provided for internal faults?

Last Answer : 1.Bucholz Relay (1st Stage Alarm and 2nd Stage Trip) 2.Sudden Pressure Relay (1st Stage Alarm and 2nd Stage Trip) 3.Pressure Relief Valve (1st Stage Alarm and 2nd Stage Trip) 4.Pressure Switch ... 8.Gas Temperature Indicator (Alarm) 9.Silicon Breather (Passive - no alarm) 10.Smoke Detector (Alarm)

Who provided protection to third Buddhist council?

Description : Who provided protection to third Buddhist council?

Last Answer : Ashoka

Why main generator/UT is not provided with separate overfluxing protection?

Description : Why main generator/UT is not provided with separate overfluxing protection?

Last Answer : Since GT is provided with overfluxing protection, it is adequate to protect main generator / UT also. Main generator can withstand higher degree of overfluxing. If a generator CB is used, separate overfluxing protection is essential for main generator. 

Why inter-turn protection is provided along with differential protection in generator?

Description : Why inter-turn protection is provided along with differential protection in generator?

Last Answer : Inter-turn protects two separate windings from the fault of the generator.  

A operational audit is primarily oriented toward a. Future improvements to accomplish management’s goals. b. Past protection provided by existing internal control. c. Operational information is in accordance with generally accepted accounting principles. d. Financial statements are fairly presented.

Description : A operational audit is primarily oriented toward a. Future improvements to accomplish management’s goals. b. Past protection provided by existing internal control. c. Operational information is in accordance with generally accepted accounting principles. d. Financial statements are fairly presented.

Last Answer : Future improvements to accomplish management’s goals.

Castles provided protection to those inside, but they were cold, smoky, smelly places to live. True or False?

Description : Castles provided protection to those inside, but they were cold, smoky, smelly places to live. True or False?

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A harbour is a place where (A) Ships get shelter and protection against destructive forces due to sea waves (B) Facilities are provided for receiving cargo and passengers (C) Port buildings are constructed for commercial purposes (D) All the above

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Last Answer : (D) All the above

Discrimination between main and back up protection is provided by the use of relays which are (a) fact (b) sensitive (c) slow (d) none of the above

Description : Discrimination between main and back up protection is provided by the use of relays which are (a) fact (b) sensitive (c) slow (d) none of the above

Last Answer : (c) slow

How is protection provided for OL and SC?

Description : How is protection provided for OL and SC?

Last Answer : Damage from short circuits and overloads can be reduced or prevented by employing fuses, circuiDamage from short circuits and overloads can be reduced or prevented by employing fuses, circuit breakers, or other overload ... (a few seconds) due to currents say 1.1 to 1.5 times the normal current.

Which type of protection is provided on a generator to protect against stator insulation failure?

Description : Which type of protection is provided on a generator to protect against stator insulation failure? A) Differential protection B) Overcurrent relay C) Thermocouple actuated alarm D) Reverse power relay

Last Answer : Which type of protection is provided on a generator to protect against stator insulation failure? A) Differential protection B) Overcurrent relay C) Thermocouple actuated alarm D) Reverse power relay 

Discrimination between main and backup protection is provided by the use of relays which are?

Last Answer : Discrimination between main and back up protection is provided by the use of relays which are slow.

A ___________________ monitor looks like a television and are normally used with non-portable computer systems. a) CRT b) LCD c) LED d) Flat Panel Monitors

Description : A ___________________ monitor looks like a television and are normally used with non-portable computer systems. a) CRT b) LCD c) LED d) Flat Panel Monitors

Last Answer : Answer: a Explanation: A CRT (or the Cathode Ray Tube) Monitor looks like a television ideally. The flat panel monitors are thinner and lighter in comparison

Acceptance tests are normally conducted by the A. Developer B. End usersC. Test team D. Systems engineers

Description : Acceptance tests are normally conducted by the A. Developer B. End usersC. Test team D. Systems engineers

Last Answer : B. End users

A typical demand curve will normally have a (a) positive slope ; (b) horizontal slope ;(c) vertical slope ; (d) negative slope

Description : A typical demand curve will normally have a (a) positive slope ; (b) horizontal slope ;(c) vertical slope ; (d) negative slope

Last Answer : (d) negative slope 

When shore power is being connected to a ship in dry dock, _____________. A. the ship's generators are paralleled with the shore power to provide continuous power B. proper phase sequence must be established C. exactly 450 volts must be supplied from the shore D. exactly 60 Hz must be provided by the terminal

Description : When shore power is being connected to a ship in dry dock, _____________. A. the ship's generators are paralleled with the shore power to provide continuous power B. proper phase sequence must be ... 450 volts must be supplied from the shore D. exactly 60 Hz must be provided by the terminal

Last Answer : Answer: B

Do you have any feelings, positive or negative, about the Monsanto Protection Act?

Description : Do you have any feelings, positive or negative, about the Monsanto Protection Act?

Last Answer : Your linked article failed to mention a few things. Michael Taylor, Elena Kagan, Dr. Roger Beachy and Tom Vilsack. Also relevant.

A series resistance is added to the over-current relay in a bus bar differential protection scheme which:

Description : A series resistance is added to the over-current relay in a bus bar differential protection scheme which: a. Helps to develop some voltage across it which otherwise should appear across the relay and is ... the effects of CT saturation and lowers the pickup value of the relay d. All of the above 

Last Answer : A series resistance is added to the over-current relay in a bus bar differential protection scheme which: a. Helps to develop some voltage across it which otherwise should appear across the relay and is ... the effects of CT saturation and lowers the pickup value of the relay d. All of the above 

Which of the following is the least expensive protection for over current in low voltage system?

Description : Which of the following is the least expensive protection for over current in low voltage system?  (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker

Last Answer : Which of the following is the least expensive protection for over current in low voltage system?  (A) Rewireable fuse (B) Isolator (C) Oil Circuit breaker (D) Air break circuit breaker

Which of the following is the correct sequence of events in the origin of life? I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems (a) I, II, III, IV (b) I, III, II, IV (c) II, III, I, IV (d) II, III, IV, I

Description : Which of the following is the correct sequence of events in the origin of life? I. Formation of protobionts II. Synthesis of organic monomers III. Synthesis of organic polymers IV. Formation of DNA-based genetic systems (a) I, II, III, IV (b) I, III, II, IV (c) II, III, I, IV (d) II, III, IV, I

Last Answer : c) II, III, I, IV

Define negative sequence component.

Description : Define negative sequence component.

Last Answer : It has 3 vectors equal in magnitude and displaced from each other by an angle 120 degrees and has the phase sequence in opposite to its original phasors.

What is meant by positive, negative and zero sequence reactance.

Description : What is meant by positive, negative and zero sequence reactance.

Last Answer : The reactance diagram of a power system, when formed using positive, negative and zero sequence reactances are called positive, negative and zero sequence reactance diagram resp.

What is meant by positive, negative and zero sequence impedance.

Description : What is meant by positive, negative and zero sequence impedance.

Last Answer : The impedance of the circuit element for positive, negative and zero sequence component currents are called positive, negative and zero sequence impedances resp.

What are negative sequence components?

Description : What are negative sequence components?

Last Answer : The negative sequence components of a three phase unbalanced vectors consists of three vectors of equal magnitude displaced from each other by 120 degree in phase and having the phase sequence opposite to that of the original vectors.

When the negative sequence reactance arises?

Description : When the negative sequence reactance arises?

Last Answer : Negative sequence arises whenever there is any unbalance present in the system. Their effect is to set up a field rotating in opposite direction to the main field.