Find whether the vectors are parallel, (-2,1,-1) and (0,3,1) a) Parallel b) Collinearly parallel c) Not parallel d) Data insufficient

Find whether the vectors are parallel, (-2,1,-1) and (0,3,1)
a) Parallel b) Collinearly parallel
c) Not parallel d) Data insufficient
by

1 Answer

Answer :

c) Not parallel
by

Related questions

Find whether the vectors are parallel, (-2,1,-1) and (0,3,1) a) Parallel b) Collinearly parallel c) Not parallel d) Data insufficient

Description : Find whether the vectors are parallel, (-2,1,-1) and (0,3,1) a) Parallel b) Collinearly parallel c) Not parallel d) Data insufficient

Last Answer : c) Not parallel

The vectors of the electromagnetic wave propagation can be expressed in a) Dot product b) Cross product c) Unit vector d) Perpendicular vector

Description : The vectors of the electromagnetic wave propagation can be expressed in a) Dot product b) Cross product c) Unit vector d) Perpendicular vector

Last Answer : b) Cross product

The angular separation between the vectors A = 4i + 3j + 5k and B = i – 2j + 2k is (in degrees) a) 65.8 b) 66.8 c) 67.8 d) 68.8

Description : The angular separation between the vectors A = 4i + 3j + 5k and B = i – 2j + 2k is (in degrees) a) 65.8 b) 66.8 c) 67.8 d) 68.8

Last Answer : c) 67.8

The vector product of two vectors is given by area of the parallelogram. State True/False. a) True b) False

Description : The vector product of two vectors is given by area of the parallelogram. State True/False. a) True b) False

Last Answer : a) True

Distance and position vectors rely on field strength. State True/False. a) True b) False

Description : Distance and position vectors rely on field strength. State True/False. a) True b) False

Last Answer : a) True

The dot product of two vectors is a scalar. The cross product of two vectors is a vector. State True/False. a) True b) Fals

Description : The dot product of two vectors is a scalar. The cross product of two vectors is a vector. State True/False. a) True b) Fals

Last Answer : a) True

he work done of vectors force F and distance d, separated by angle θ can be calculated using, a) Cross product b) Dot product c) Addition of two vectors d) Cannot be calculated

Description : he work done of vectors force F and distance d, separated by angle θ can be calculated using, a) Cross product b) Dot product c) Addition of two vectors d) Cannot be calculated

Last Answer : b) Dot product

The cross product of the vectors 3i + 4j – 5k and –i + j – 2k is, a) 3i – 11j + 7k b) -3i + 11j + 7k c) -3i – 11j – 7k d) -3i + 11j – 7k

Description : The cross product of the vectors 3i + 4j – 5k and –i + j – 2k is, a) 3i – 11j + 7k b) -3i + 11j + 7k c) -3i – 11j – 7k d) -3i + 11j – 7k

Last Answer : Answer: b Explanation: Cross product of two vectors is, A X B = (a2*b3 – b2*a3)i – (a1*b3 – b1*a3)j + (a1*b2 – b1*a2)k. Using the formula, the answer can be calculated.

When two vectors are perpendicular, their a) Dot product is zero b) Cross product is zero c) Both are zero d) Both are not necessarily zero

Description : When two vectors are perpendicular, their a) Dot product is zero b) Cross product is zero c) Both are zero d) Both are not necessarily zero

Last Answer : Answer: a Explanation: Dot product of two perpendicular vectors is given by A.B = |a||b|cos 90, which is zero. Thus, dot product is zero and vectors are perpendicular.

Given the potential V = 25 sin θ, in free space, determine whether V satisfies Laplace’s equation. a) Yes b) No c) Data sufficient d) Potential is not defined

Description : Given the potential V = 25 sin θ, in free space, determine whether V satisfies Laplace’s equation. a) Yes b) No c) Data sufficient d) Potential is not defined

Last Answer : a) Yes

Find whether the vector is solenoidal, E = yz i + xz j + xy k a) Yes, solenoidal b) No, non-solenoidal c) Solenoidal with negative divergence d) Variable divergence

Description : Find whether the vector is solenoidal, E = yz i + xz j + xy k a) Yes, solenoidal b) No, non-solenoidal c) Solenoidal with negative divergence d) Variable divergence

Last Answer : a) Yes, solenoidal

Calculate the capacitance of two parallel plates of area 2 units separated by a distance of 0.2m in air(in picofarad) a) 8.84 b) 88.4 c) 884.1 d) 0.884

Description : Calculate the capacitance of two parallel plates of area 2 units separated by a distance of 0.2m in air(in picofarad) a) 8.84 b) 88.4 c) 884.1 d) 0.884

Last Answer : b) 88.4

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?

Identify the polarisation of the wave given that, Ex = 2 sin wt and Ey = 3 sin wt. a) Linear b) Elliptical c) Circular d) Parallel

Description : Identify the polarisation of the wave given that, Ex = 2 sin wt and Ey = 3 sin wt. a) Linear b) Elliptical c) Circular d) Parallel

Last Answer : a) Linear

The Snell law is applicable for perpendicular polarisation and the Brewster law is applicable for parallel polarisation. State True/False. a) True b) False

Description : The Snell law is applicable for perpendicular polarisation and the Brewster law is applicable for parallel polarisation. State True/False. a) True b) False

Last Answer : a) True

Identify the polarisation of the wave given that, Ex = 2 cos wt and Ey = cos wt. a) Elliptical b) Circular c) Parallel d) Linear

Description : Identify the polarisation of the wave given that, Ex = 2 cos wt and Ey = cos wt. a) Elliptical b) Circular c) Parallel d) Linear

Last Answer : d) Linear

For a non-zero Ex component and zero Ey component, the polarisation is a) Parallel b) Perpendicular c) Elliptical d) Circular

Description : For a non-zero Ex component and zero Ey component, the polarisation is a) Parallel b) Perpendicular c) Elliptical d) Circular

Last Answer : a) Parallel

When the Ex and Ey components of a wave are not same, the polarisation will be a) Linear b) Elliptical c) Circular d) Parallel

Description : When the Ex and Ey components of a wave are not same, the polarisation will be a) Linear b) Elliptical c) Circular d) Parallel

Last Answer : b) Elliptical

Brewster angle is valid for which type of polarisation? a) Perpendicular b) Parallel c) S polarised d) P polarised

Description : Brewster angle is valid for which type of polarisation? a) Perpendicular b) Parallel c) S polarised d) P polarised

Last Answer : b) Parallel

Which of the following is true regarding magnetic lines of force? a) Real b) Imaginary c) Does not exist d) Parallel to field

Description : Which of the following is true regarding magnetic lines of force? a) Real b) Imaginary c) Does not exist d) Parallel to field

Last Answer : b) Imaginary

The torque of a conductor is defined only in the case when a) The field is perpendicular to the loop b) The plane of the loop is parallel to the field c) The plane of the loop is perpendicular to the current direction d) The field and the current direction are same

Description : The torque of a conductor is defined only in the case when a) The field is perpendicular to the loop b) The plane of the loop is parallel to the field c) The plane of the loop is perpendicular to the current direction d) The field and the current direction are same

Last Answer : b) The plane of the loop is parallel to the field

Compute the charge enclosed by a cube of 2m each edge centered at the origin and with the edges parallel to the axes. Given D = 10y 3 /3 j. a) 20 b) 70/3 c) 80/3 d) 30

Description : Compute the charge enclosed by a cube of 2m each edge centered at the origin and with the edges parallel to the axes. Given D = 10y 3 /3 j. a) 20 b) 70/3 c) 80/3 d) 30

Last Answer : c) 80/3

When gradient of a function is zero, the function lies parallel to the x-axis. State True/False. a) True b) False

Description : When gradient of a function is zero, the function lies parallel to the x-axis. State True/False. a) True b) False

Last Answer : a) True

P = i + 2k and Q = 2i + j -2k are two vectors, find the unit vector parallel to P x Q.

Description : P = i + 2k and Q = 2i + j -2k are two vectors, find the unit vector parallel to P x Q.

Last Answer : P = i + 2k and Q = 2i + j -2k are two vectors, find the unit vector parallel to P x ... find the vector perpendicular to P and Q of magnitude 6 units.

Show that vectors a = 2i + 5j - 6k and b = i + 5/2 j - 3k are parallel.

Description : Show that vectors a = 2i + 5j - 6k and b = i + 5/2 j - 3k are parallel.

Last Answer : Show that vectors a = 2i + 5j - 6k and b = i + 5/2 j - 3k are parallel.

A vibrating machine of 100 kg is mounted on a rubber pad which has stiffness of 500 N/m. Determine force transmitted to the foundation if the unbalanced force 500 N acts on it. The frequency ratio (ω/ω n ) is 1.5 and ξ = 0.5 A. 461.62 N B. 400.23 N C. 450 N D. Insufficient data

Description : A vibrating machine of 100 kg is mounted on a rubber pad which has stiffness of 500 N/m. Determine force transmitted to the foundation if the unbalanced force 500 N acts on it. The frequency ratio (ω/ω n ) is 1.5 and ξ = 0.5 A. 461.62 N B. 400.23 N C. 450 N D. Insufficient data

Last Answer : A. 461.62 N

Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop

Description : Reynolds number for water flow through a tube of I.D. 5 cm is 1500. If a liquid of 5 centipoise viscosity and 0.8 specific gravity flows in the same pipe at the same velocity, then the pressure drop will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict pressure drop

Last Answer : (A) Increase

A centrifugal pump used to pump water is used to pump an oil withspecific gravity of 0.8 at the same rate. The power consumption will now (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict

Description : A centrifugal pump used to pump water is used to pump an oil withspecific gravity of 0.8 at the same rate. The power consumption will now (A) Increase (B) Decrease (C) Remain same (D) Data insufficient to predict

Last Answer : (B) Decrease

A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is (A) 0.33 (B) 0.5 (C) 1 (D) Data insufficient, can't be predicted

Description : A chemical reaction, A → 3B, is conducted in a constant pressure vessel. Starting with pure A, the volume of the reaction mixture increases 3 times in 6 minutes. The fractional conversion is (A) 0.33 (B) 0.5 (C) 1 (D) Data insufficient, can't be predicted

Last Answer : (C) 1

The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is: (A) 0.875 (B) 0.5 (C) 0.425 (D) Data insufficient to calculate

Description : The conversion of a reactant, undergoing a first order reaction, at a time equal to three times the half life of the reaction is: (A) 0.875 (B) 0.5 (C) 0.425 (D) Data insufficient to calculate

Last Answer : (A) 0.875

In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that requiredto reduce it from 10 moles/litre to 5 moles/litre in the same volume.(A) More than(B) Less than(C) Same as(D) Data insufficient; can't be predicted

Description : In a first order reaction, the time required to reduce the concentration of reactant from 1 mole/litre to 0.5 mole/litre will be __________ that requiredto reduce it from 10 moles/litre to 5 moles/litre in the ... (A) More than (B) Less than (C) Same as (D) Data insufficient; can't be predicted

Last Answer : (C) Same as

In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respectively, the Carnot COP will be (A) 5.2 (B) 6.2 (C) 0.168 (D) Data insufficient, can't be found out

Description : In vapour compression refrigeration system, if the evaporator temperature and the condenser temperatures are -13°C and 37°C respectively, the Carnot COP will be (A) 5.2 (B) 6.2 (C) 0.168 (D) Data insufficient, can't be found out

Last Answer : A) 5.2

The correct sequence to find H, when D is given is a) D-E-B-H b) D-B-E-H c) It cannot be computed from the data given d) D-H

Description : The correct sequence to find H, when D is given is a) D-E-B-H b) D-B-E-H c) It cannot be computed from the data given d) D-H

Last Answer : a) D-E-B-H

. For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient, can't be predicted

Description : . For the same feed, feed quality and separation (in a distillation column), with the increase of total pressure, the number of ideal plates will (A) Increase (B) Decrease (C) Remain same (D) Data insufficient, can't be predicted

Last Answer : (A) Increase

At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower. (A) Is greater than (B) Is lower than (C) Is same as (D) Cannot be predicted as data are insufficient

Description : At the same gas flow rate, the pressure drop in a packed tower being irrigated with liquid __________ that in dry packed tower. (A) Is greater than (B) Is lower than (C) Is same as (D) Cannot be predicted as data are insufficient

Last Answer : (A) Is greater than

What is the value of shear stress acting on a plane of circular bar which is subjected to axial tensile load of 100 kN? (Diamet a. 58.73 Mpa b. 40.23 Mpa c. 39.60 Mpa d. Insufficient data

Description : What is the value of shear stress acting on a plane of circular bar which is subjected to axial tensile load of 100 kN? (Diamet a. 58.73 Mpa b. 40.23 Mpa c. 39.60 Mpa d. Insufficient data

Last Answer : c. 39.60 Mpa

One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to (A) Heat the water from 0°C to 100°C (B) Evaporate the water (C) To superheat the steam (D) Data insufficient, can't be predicted

Description : One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to (A) Heat the water from 0°C to 100°C (B) Evaporate the water (C) To superheat the steam (D) Data insufficient, can't be predicted

Last Answer : (B) Evaporate the water

Sensible heat absorbed by 1 lb of water when it is heated from 32 to 212°F may be around __________ BTU. (A) 180 (B) 970 (C) 3.97 (D) Data insufficient, can't be predicted

Description : Sensible heat absorbed by 1 lb of water when it is heated from 32 to 212°F may be around __________ BTU. (A) 180 (B) 970 (C) 3.97 (D) Data insufficient, can't be predicted

Last Answer : (A) 180

Given a source code with 10 operators includes 6 unique operators, and 6 operand including 2 unique operands. The program volume is ? 48 120 720 insufficient data

Description : Given a source code with 10 operators includes 6 unique operators, and 6 operand including 2 unique operands. The program volume is ? 48 120 720 insufficient data

Last Answer : 48

A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be (A) More (B) Less (C) Same (D) Data insufficient; can't be predicted

Description : A fuel containing carbon and carbon monoxide (but containing no hydrogen or its compounds) is burnt in pure oxygen at constant pressure. Its gross calorific value as compared to net calorific value will be (A) More (B) Less (C) Same (D) Data insufficient; can't be predicted

Last Answer : (C) Same

A pitched-blade turbine draws __________ a straight blade turbine. (A) Less power than (B) More power than (C) Same power as (D) Data insufficient to predict

Description : A pitched-blade turbine draws __________ a straight blade turbine. (A) Less power than (B) More power than (C) Same power as (D) Data insufficient to predict

Last Answer : (A) Less power than

If the discharge of a centrifugal pump is throttled, then its suction lift (A) Increases (B) Decreases (C) Remains unchanged (D) Data insufficient to predict

Description : If the discharge of a centrifugal pump is throttled, then its suction lift (A) Increases (B) Decreases (C) Remains unchanged (D) Data insufficient to predict

Last Answer : (A) Increases

Power loss in an orificemeter is __________ that in a Venturimeter. (A) Less than (B) Same as (C) More than (D) Data insufficient, cannot be predicted

Description : Power loss in an orificemeter is __________ that in a Venturimeter. (A) Less than (B) Same as (C) More than (D) Data insufficient, cannot be predicted

Last Answer : (C) More than

Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the first fluid, the pressure drop will (A) Increase (B) Decrease (C) Remain unchanged (D) Data insufficient to predict relative pressure drop

Description : Two fluids are flowing through two similar pipes of the same diameter. The Reynold's number is same. For the same flow rate if the viscosity of a fluid is reduced to half the value of the ... (A) Increase (B) Decrease (C) Remain unchanged (D) Data insufficient to predict relative pressure drop

Last Answer : (B) Decrease

Rate determining step in a reaction consisting of a number of steps inseries is the __________ step.(A) Fastest(B) Slowest(C) Intermediate(D) Data insufficient; can't be predicted

Description : Rate determining step in a reaction consisting of a number of steps inseries is the __________ step. (A) Fastest (B) Slowest (C) Intermediate (D) Data insufficient; can't be predicted

Last Answer : (B) Slowest

A first order reaction requires two unequal sized CSTR. Which of thefollowing gives higher yield?(A) Large reactor followed by smaller one(B) Smaller reactor followed by larger one(C) Either of the arrangement (A) or (B) will give the same yield(D) Data insufficient, can't be predicted

Description : A first order reaction requires two unequal sized CSTR. Which of thefollowing gives higher yield? (A) Large reactor followed by smaller one (B) Smaller reactor followed by larger one (C) Either of the arrangement (A) or (B) will give the same yield (D) Data insufficient, can't be predicted

Last Answer : (C) Either of the arrangement (A) or (B) will give the same yield

With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will (A) Increase (B) Decrease (C) Remain same (D) Data in insufficient; can't be predicted

Description : With increase in the space time of an irreversible isothermal reaction being carried out in a P.F. reactor, the conversion will (A) Increase (B) Decrease (C) Remain same (D) Data in insufficient; can't be predicted

Last Answer : (A) Increase

With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be (A) Higher in P.F. reactor (B) Higher in CSTR (C) Same in both the reactors (D) Data insufficient; can't be predicted

Description : With the same reaction time, initial concentration and feed rate, the reaction 2A → B is carried out separately in CSTR and P.F. reactor of equal volumes. The conversion will be (A) Higher in P.F. reactor (B) Higher in CSTR (C) Same in both the reactors (D) Data insufficient; can't be predicted

Last Answer : (A) Higher in P.F. reactor

Grams of butane (C4H10 ) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be (A) 580 (B) 640 (C) 1160 (D) Data insufficient; can't be computed

Description : Grams of butane (C4H10 ) formed by the liquefaction of 448 litres of the gas (measured at (STP) would be (A) 580 (B) 640 (C) 1160 (D) Data insufficient; can't be computed

Last Answer : (C) 1160

The activity of an ideal gas is numerically __________ its pressure. (A) More than (B) Less than (C) Equal to (D) Data insufficient, can't be predicted

Description : The activity of an ideal gas is numerically __________ its pressure. (A) More than (B) Less than (C) Equal to (D) Data insufficient, can't be predicted

Last Answer : (C) Equal to