Define and explain the following terms:  i. Zero vector (Null vector)  ii. Resultant vector  iii. Negative vectors iv. Equal vectors 

Define and explain the following terms:  i. Zero vector (Null vector)  ii. Resultant vector  iii. Negative vectors iv. Equal vectors 
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Define and explain the following terms: i. Zero vector (Null vector) ii. Resultant vector ... vectors iv. Equal vectors v. Position vector
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The expression 1/√2 (i + j) is a  (A) unit vector  (B) null vector  (C) vector of magnitude  (D) scalar

Description : The expression 1/√2 (i + j) is a  (A) unit vector  (B) null vector  (C) vector of magnitude  (D) scalar

Last Answer : The expression 1/√2 (i + j) is a (A) unit vector (B) null vector (C) vector of magnitude √2 (D) scalar

If A + B = A - B then vector B must be  (A) zero vector  (B) unit vector  (C) Non zero vector  (D) equal to vector A

Description : If A + B = A - B then vector B must be  (A) zero vector  (B) unit vector  (C) Non zero vector  (D) equal to vector A

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In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these can be used as a vector/vectors. (i) Bacterium (ii) Plasmid (iii)Plasmodium (iv) Bacteriophage (a) (i), (ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)

Description : In genetic engineering, a DNA segment (gene) of interest, is transferred to the host cell through a vector. Consider the following four agents (i-iv) in this regard and select the correct option about which one or more of these ... ii) and (iv) (b) (i) only (c) (i) and (iii) (d) (ii) and (iv)

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Explain, how two vectors are subtracted. Find their resultant by using triangle law of vector addition.

Description : Explain, how two vectors are subtracted. Find their resultant by using triangle law of vector addition.

Last Answer : Explain, how two vectors are subtracted. Find their resultant by using triangle law of vector addition.

Whether the resultant of two vectors of unequal magnitude be zero?

Description : Whether the resultant of two vectors of unequal magnitude be zero?

Last Answer : Whether the resultant of two vectors of unequal magnitude be zero?

Minimum numbers of unequal vectors which can give zero resultant are - (1) Two (2) Three (3) Four (4) More than four

Description : Minimum numbers of unequal vectors which can give zero resultant are - (1) Two (2) Three (3) Four (4) More than four

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NULL value means : (i) 0 value (ii) 1 value (iii) None value (iv) None of the above -Technology

Description : NULL value means : (i) 0 value (ii) 1 value (iii) None value (iv) None of the above -Technology

Last Answer : Correct option (d) None value

Curl of gradient of a vector is a) Unity b) Zero c) Null vector d) Depends on the constants of the vector

Description : Curl of gradient of a vector is a) Unity b) Zero c) Null vector d) Depends on the constants of the vector

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What minimum number of non-zero non-collinear vectors is required to produce a zero vector? -General Knowledge

Description : What minimum number of non-zero non-collinear vectors is required to produce a zero vector? -General Knowledge

Last Answer : The answer is '3'

What minimum number of non-zero non-collinear vectors is required to produce a zero vector? -General Knowledge

Description : What minimum number of non-zero non-collinear vectors is required to produce a zero vector? -General Knowledge

Last Answer : answer:

What minimum number of non-zero non-collinear vectors is required to produce a zero vector? -General Knowledge

Description : What minimum number of non-zero non-collinear vectors is required to produce a zero vector? -General Knowledge

Last Answer : answer:

What minimum number of non-zero non-collinear vectors is required to produce a zero vector?

Description : What minimum number of non-zero non-collinear vectors is required to produce a zero vector?

Last Answer : 3

According to principle of moments (A) If a system of coplanar forces is in equilibrium, then their algebraic sum is zero (B) If a system of coplanar forces is in equilibrium, then the algebraic sum of their moments about any point in their plane is zero (C) The algebraic sum of the moments of any two forces about any point is equal to moment of their resultant about the same point (D) Positive and negative couples can be balanced

Description : According to principle of moments  (A) If a system of coplanar forces is in equilibrium, then their algebraic sum is zero  (B) If a system of coplanar forces is in equilibrium, then the ... of  their resultant about the same point  (D) Positive and negative couples can be balanced

Last Answer : (C) The algebraic sum of the moments of any two forces about any point is equal to moment of  their resultant about the same point 

Define and explain vector product of two vectors with suitable examples.

Description : Define and explain vector product of two vectors with suitable examples.

Last Answer : Define and explain vector product of two vectors with suitable examples.

Show that magnitude of vector product of two vectors is numerically equal to the area of a parallelogram formed by the two vectors.

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Define the following terms: i) Level line ii) Bench Mark iii) Change point iv) Profile levelling

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Last Answer : i) Level line - It is line lying in a level surface; it is therefore, normal to the plumb line at all points. ii) Bench Mark - These are fixed points or marks of known RL determined with ... the centerline of a proposed ditch or road or the centerline of a natural feature such as a stream bed.

Define the terms i) Fore Bearing, ii) Open traverse, iii) Closing error, iv) Reduced bearing

Description : Define the terms i) Fore Bearing, ii) Open traverse, iii) Closing error, iv) Reduced bearing

Last Answer : i) Fore bearing : The bearing observed in the direction of progress of survey in clockwise manner is called fore bearing  ii) Open traverse : When the first and last survey lines does ... north or south direction in clockwise or anticlockwise manner is known as reduced or quadrantal bearing. 

Define the following terms: (i) Level surface {ii) Datum line (iii) Reduced level (iv) Axis of telescope

Description : Define the following terms: (i) Level surface {ii) Datum line (iii) Reduced level (iv) Axis of telescope

Last Answer : i)Level Surface : Any surface is parallel to mean spheroidal surface of earth is said to be a level surface. The water surface of still lake is also considered to be level surface. ii) ... an imaginary line passing through the optical Centre of object glass and optical Centre of the eye piece.

Define the following terms: (i) Data abstraction (ii) Class (iii) Dynamic binding (iv) Polymorphism

Description : Define the following terms: (i) Data abstraction (ii) Class (iii) Dynamic binding (iv) Polymorphism

Last Answer : (i) Data abstraction: Abstraction refers to the act of representing essential features without including the background details or explanation. Data abstraction is the process of defining a data type, often ... more than one form at different instances depending on the type or number of arguments. 

Define the following terms related to antennas; (i) Antenna resistance (ii) Directivity (iii) Antenna gain (iv) Power density

Description : Define the following terms related to antennas; (i) Antenna resistance (ii) Directivity (iii) Antenna gain (iv) Power density

Last Answer : Antenna Resistance - The resistance of an antenna has two components: 1. Its radiation resistance due to conversion of power into electromagnetic waves 2. The resistance due to actual losses in the ... the transmitter power divided by the surface area of a sphere (4πR2) at that distance.

Define the following terms: (i) Polarization (ii) Antenna gain (iii)Antenna resistance (iv)Directivity

Description : Define the following terms: (i) Polarization (ii) Antenna gain (iii)Antenna resistance (iv)Directivity

Last Answer : i) Polarization:- It is defined as the direction of electric field vector in the EM wave radiated by the transmitting antenna. ii) Antenna Gain:- Antenna gain is defined as the ratio of ... in only one direction in which the radiation is maximum. That is directivity = Max. directive gain

Define the following terms : (i) absorptivity (ii) reflectivity (iii) transmissivity (iv) emissivity

Description : Define the following terms : (i) absorptivity (ii) reflectivity (iii) transmissivity (iv) emissivity

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Define following terms (i) Kinematic link (ii) Kinematic pair (iii) Kinematic chain (iv) Mechanism (v) Machine (vi) Inversion

Description : Define following terms (i) Kinematic link (ii) Kinematic pair (iii) Kinematic chain (iv) Mechanism (v) Machine (vi) Inversion

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Define following terms: i) Economic span ii) Afflux iii) Waterway iv) Free board

Description : Define following terms: i) Economic span ii) Afflux iii) Waterway iv) Free board

Last Answer : i) Economic span: The span for which the total cost of the bridge is minimum is known as economical span of a bridge. ii) Afflux: It is the rise in water surface caused due to the obstruction ... , if any, and the lowest point on the underside of the bridge super structure is called free board.

Define the following terms with respect to protective relays i) Relay time ii) Reset current iii) Plug setting multiplier and iv) Time setting multiplier

Description : Define the following terms with respect to protective relays i) Relay time ii) Reset current iii) Plug setting multiplier and iv) Time setting multiplier

Last Answer : 1) Relay Time: The time interval between occurrence of fault and closure of relay contacts.  2) Reset Current: The value of current below which the relay resets and comes back to ... The adjustment arrangement provided for setting the operation time of relay is known as Time setting multiplier. 

Define following terms used in A.C. circuits : (i) Cycle (ii) Rms value (iii) Phase difference (iv) Average value

Description : Define following terms used in A.C. circuits : (i) Cycle (ii) Rms value (iii) Phase difference (iv) Average value

Last Answer : (i) Cycle:   A complete set of variation of an alternating quantity which is repeated at regular interval of time is called as a cycle. OR  Each repetition of an alternating quantity ... charge as is transferred by the alternating current during the same time under the same conditions. 

Define following terms related to logic families : (i) Noise Margin (ii) FAN-OUT (iii) Propagation delay (iv) Power dissipation

Description : Define following terms related to logic families : (i) Noise Margin (ii) FAN-OUT (iii) Propagation delay (iv) Power dissipation

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Define the following terms : (i) Base Station (ii) Control Channel (iii) Mobile Station (iv) Page

Description : Define the following terms : (i) Base Station (ii) Control Channel (iii) Mobile Station (iv) Page 

Last Answer : i) Base Station: - A fixed station in a mobile radio system used for radio communication with mobile stations. Base stations are located at the center or on the edge of a coverage region ... the page throughout the service area using base stations which broadcast the page on a radio carrier.

Define the terms related to a.c. supply with waveform : i) Instantaneous value ii) Time period iii) Amplitude iv) Phase difference.

Description : Define the terms related to a.c. supply with waveform : i) Instantaneous value ii) Time period iii) Amplitude iv) Phase difference. 

Last Answer : i) Instantaneous value: The instantaneous value is the value of an alternating quantity (it may ac voltage or ac current or ac power) at a particular instant of time in the cycle .  OR  ... difference: Phase difference is the difference in phase angle between two sinusoids or phasors. 

Define the terms: (i) Lamp efficiency (ii) Luminous flux (iii) Luminaire (iv) Colour Rendering Index.

Description : Define the terms: (i) Lamp efficiency (ii) Luminous flux (iii) Luminaire (iv) Colour Rendering Index. 

Last Answer : i) Lamp efficiency or luminous efficiency: It is the ratio of luminous flux emitted by a lamp to the power consumed by the lamp. It is a reflection of efficiency of energy conservation ... of surfaces illuminated by a given source compare to those of the same surface under reference illuminant.

Define the terms: i) Tariff ii) Fuel surcharge iii) Electricity Duty iv) Connected load

Description : Define the terms: i) Tariff ii) Fuel surcharge iii) Electricity Duty iv) Connected load

Last Answer : i) Tariff: The rate at which a consumer is charged for the consumption of electricity is called as tariff. OR The amount of money framed by the supplier for the supply of electrical energy ... is the total wattage of all appliances which are used by the consumer on his sanctioned connection. 

Define the following terms related to tariff: (i) Connected load (ii) Unit consumed (iii) Fixed charges (iv) Electricity Tax

Description : Define the following terms related to tariff: (i) Connected load (ii) Unit consumed (iii) Fixed charges (iv) Electricity Tax 

Last Answer : (i) Connected load  It is the sum of the power ratings (Watts or kW or MW) of all devices and machines existing (installed) in the premises of consumer. It is used to decide the ... a percentage of the total electricity bill which includes all amounts that go to the electricity supply agency. 

Define each of following terms of operational amplifiers i) Slew rate ii) Input offset voltage iii) Voltage gain iv) Input capacitance

Description : Define each of following terms of operational amplifiers i) Slew rate ii) Input offset voltage iii) Voltage gain iv) Input capacitance

Last Answer : i) Slew rate:- Maximum rate of change of o/p voltage per unit of time. It is express in volt/µsec.  ii) Input offset voltage:- The voltage that must be applied between two ... capacitance that can be measured at either be inverting or non-inverting terminal with other terminal connected to ground.

Define the following terms: i) Magnetic flux density, ii) Reluctance, iii) Magneto-motive force, iv) Permeance.

Description : Define the following terms: i) Magnetic flux density, ii) Reluctance, iii) Magneto-motive force, iv) Permeance.

Last Answer : (i) Magnetic flux density (B): It is the magnetic flux per unit area measured at right angles to the flux path. (Its unit is weber/m2 or tesla).  (ii) Reluctance: It is the ... flux to set up through it and it is reciprocal of reluctance. Permeance = 1/ Reluctance. Unit: weber/ampere.

Define the terms : i) Node ii) Branch iii) Loop iv) Mesh

Description : Define the terms : i) Node ii) Branch iii) Loop iv) Mesh

Last Answer : i) Node:  A point or junction where two or more elements of the network are connected together is called as node.  ii) Branch: A part of an electric network which lies between two junctions ... path (same as loop) in an electric circuit. OR A loop that does not contain any other loop inside

Define the terms: i) Hardness ii) Toughness iii) Brazing iv) Machinability

Description : Define the terms: i) Hardness ii) Toughness iii) Brazing iv) Machinability

Last Answer : i) Hardness:- Hardness is the property of metal possessed by a material which enables it to resist penetration or abrasion or scratching by other material. Diamond is the hardest of known materials.  ... can be easily cut by cutting tools to produce a desired shape & surface finish on its surface

The resultant of two vectors of magnitude |P| is also |P|. They act at an angle

Description : The resultant of two vectors of magnitude |P| is also |P|. They act at an angle

Last Answer : The resultant of two vectors of magnitude |P| is also |P|. They act at an angle (A) 60° (B) 90° (C) 120° (D) 180°

What is the resultant of vectors shown in the figure below?

Description : What is the resultant of vectors shown in the figure below?

Last Answer : What is the resultant of vectors shown in the figure below?

How can resultant of two vectors of a type inclined with each other be determined?

Description : How can resultant of two vectors of a type inclined with each other be determined?

Last Answer : How can resultant of two vectors of a type inclined with each other be determined?

Given a  = i + 2j and b = 2i + j, what are the magnitudes of the two vectors? Are these two vectors equal?

Description : Given a  = i + 2j and b = 2i + j, what are the magnitudes of the two vectors? Are these two vectors equal?

Last Answer : Given \(\overset\rightarrow{a}\) = i + 2j and \(\overset\rightarrow{b}\) = 2i + j, ... magnitudes of the two vectors? Are these two vectors equal?

Match the organism with its use in biotechnology. (A) Bacillus (i) Cloning vector thuringiensis (B) Thermus (ii) Construction of first aquaticus rDNA molecule (C) Agrobacterium (iii)DNA polymerase tumefaciens (D) Salmonella (iv) Cry proteins typhimurium Select the correct option from the following. (A) (B) (C) (D) (a) (ii) (iv) (iii) (i) (b) (iv) (iii) (i) (ii) (c) (iii) (ii) (iv) (i) (d) (iii) (iv) (i) (ii)

Description : Match the organism with its use in biotechnology. (A) Bacillus (i) Cloning vector thuringiensis (B) Thermus (ii) Construction of first aquaticus rDNA molecule (C) Agrobacterium (iii)DNA polymerase tumefaciens (D) Salmonella (iv) Cry proteins ... (ii) (c) (iii) (ii) (iv) (i) (d) (iii) (iv) (i) (ii)

Last Answer : (b) (iv) (iii) (i) (ii)

Which of the following statements are true? i) reactive current is necessary to build up the flux for the magnetic field of inductive devices ii) some portion of reactive current is converted into work iii) the cosine of angle between kVA and kVAr vector is called power factor iv) the cosine of angle between kW and kVA vector is called power factor a) i & iv b) ii & iii c) i & iii d) iii & iv

Description : Which of the following statements are true? i) reactive current is necessary to build up the flux for the magnetic field of inductive devices ii) some portion of reactive current is converted into work iii) the cosine of angle ... called power factor a) i & iv b) ii & iii c) i & iii d) iii & iv

Last Answer : a) i & iv

If the resultant force acting on a body of constant mass is zero, the body's acceleration is: w) increasing x) decreasing y) always zero z) negative.

Description : If the resultant force acting on a body of constant mass is zero, the body's acceleration is: w) increasing x) decreasing y) always zero z) negative.

Last Answer : ANSWER: Y -- ALWAYS ZERO 

null Vector Who Say ?

Last Answer : that All Of vectors The value is ' zero ' to them Who Zero Vector Or Null Vector Says.

Divergence of gradient of a vector function is equivalent to a) Laplacian operation b) Curl operation c) Double gradient operation d) Null vector

Description : Divergence of gradient of a vector function is equivalent to a) Laplacian operation b) Curl operation c) Double gradient operation d) Null vector

Last Answer : a) Laplacian operation

Using triangle law of vector addition, explain the process of adding two vectors which are not lying in a straight line.

Description : Using triangle law of vector addition, explain the process of adding two vectors which are not lying in a straight line.

Last Answer : Using triangle law of vector addition, explain the process of adding two vectors which are not lying in a straight line.

Explain the terms: i. Average velocity  ii. Instantaneous velocity  iii. Average speed  iv. Instantaneous speed

Description : Explain the terms: i. Average velocity  ii. Instantaneous velocity  iii. Average speed  iv. Instantaneous speed

Last Answer : Explain the terms: i. Average velocity ii. Instantaneous velocity iii. Average speed iv. Instantaneous speed

Explain any five of the following terms (in not more than four lines each): (i) Osmosis Glycolysis (ii) Phototaxis (iii) Transpiration (iv) Saponification (v) Emulsion

Description : Explain any five of the following terms (in not more than four lines each): (i) Osmosis Glycolysis (ii) Phototaxis (iii) Transpiration (iv) Saponification (v) Emulsion

Last Answer : (i) Osmosis: osmosis, in botany and chemistry, the flow of one constituent of a solution through a membrane while the other constituents are blocked and unable to pass through the (selecyively permeable membrane ... in a second liquid with which the first will not mix: an emulsion of oil in vinegar

Explain the following terms : (i) Electrophoresis, (ii) Coagulation, (iii) Dialysis (iV) Tyndal Effect

Description : Explain the following terms : (i) Electrophoresis, (ii) Coagulation, (iii) Dialysis (iV) Tyndal Effect

Last Answer : (i) Electrophoresis :- The immigration of colloidal solute towards oppositely charged electrode under an electric potential is called Electrophoresis.  (ii) Coagulation :- The process of settling down ... The scattering of light in colloidal solution by colloidal solute is known as Tyndal effect.

Classify the soil according to IS Classification and explain the meaning of following terms i) GW ii) SP iii) ML iv) SM-ML

Description : Classify the soil according to IS Classification and explain the meaning of following terms i) GW ii) SP iii) ML iv) SM-ML

Last Answer : As per IS classification soil is broadly divided into three divisions: 1. Coarse grained soil: In these soils, more than half the total material by mass is larger than 75 micron IS ... medium compressibility. iv) SM-ML - boundary classification between coarse grained and fine grained soils.