If `hat(a), hat(b) and hat(c)` are unit vector inclined to each other at an angle of `pi/3` then the absolute value of `[hat(a)+hat(b) hat(b)+hat(c) h

If `hat(a), hat(b) and hat(c)` are unit vector inclined to each other at an angle of `pi/3` then the absolute value of `[hat(a)+hat(b) hat(b)+hat(c) h
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Answer :

If `hat(a), hat(b) and hat(c)` are unit vector inclined to each other at an angle of `pi/3` then the ... A. `sqrt2` B. `sqrt3` C. `3sqrt2` D. `2sqrt3`
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Worm gear are used for transmitting power between two Shaft Inclined at e. At right angle to each other and axes can intersect f. At right angle to each other but axis cannot intersect each other g. At right angle to each other and in different planes h. None of the above

Description : Worm gear are used for transmitting power between two Shaft Inclined at e. At right angle to each other and axes can intersect f. At right angle to each other but axis cannot intersect each other g. At right angle to each other and in different planes h. None of the above

Last Answer : f. At right angle to each other but axis cannot intersect each other

For attaining maximum efficiency, a Francis turbine runner is so designed as to result in radial discharge at exit. This is done by : a) Providing runner vane angle at inlet as 90o b) Providing guide vane angle at inlet as 90o c) Providing runner vane angle at exit as 90o d) Designing for absolute velocity at outlet to be inclined at 90o to direction of vane there

Description : For attaining maximum efficiency, a Francis turbine runner is so designed as to result in radial discharge at exit. This is done by : a) Providing runner vane angle at inlet as 90o b) Providing ... 90o d) Designing for absolute velocity at outlet to be inclined at 90o to direction of vane there

Last Answer : d) Designing for absolute velocity at outlet to be inclined at 90o to direction of vane there

The magnitude of vector product of two unit vectors making an angle of 60° with each other is

Description : The magnitude of vector product of two unit vectors making an angle of 60° with each other is

Last Answer : The magnitude of vector product of two unit vectors making an angle of 60° with each other is (A) 1 (B) 2 (C) 3/2 (D) √3/2

Which of the following statements is not true about propyne, HC–C≡CH3? (a) It contains six sigma bonds. (b) It contains three pi bonds. (c) The H–C–H bond angle is about 109.5°. (d) The C–C–C bond angle is 180°.

Description : Which of the following statements is not true about propyne, HC–C≡CH3? (a) It contains six sigma bonds. (b) It contains three pi bonds. (c) The H–C–H bond angle is about 109.5°. (d) The C–C–C bond angle is 180°.

Last Answer : It contains three pi bonds

If the resultant vector forms an angle of 45°, then the two components are A. parallel to each otheB. perpendicular to each other C. anti parallel to each other D. anti perpendicular to each otherr

Description : If the resultant vector forms an angle of 45°, then the two components are A. parallel to each other B. perpendicular to each other C. anti parallel to each other D. anti perpendicular to each other

Last Answer : perpendicular to each other

Spiral gear are used for transmitting power between two shaft Inclined at a. Right angle to each other and axes can intersect b. Right angle to each other and axes cannot intersect c. At angle slightly lesser or greater than 90 of axles can meet d. None of the above

Description : Spiral gear are used for transmitting power between two shaft Inclined at a. Right angle to each other and axes can intersect b. Right angle to each other and axes cannot intersect c. At angle slightly lesser or greater than 90 of axles can meet d. None of the above

Last Answer : c. At angle slightly lesser or greater than 90 of axles can meet

A uniform conducting ring of mass `pi` kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field `B = (hat (i) +

Description : A uniform conducting ring of mass `pi` kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field `B = (hat (i) +

Last Answer : A uniform conducting ring of mass `pi` kg and radius 1 m is kept on smooth horizontal table. A uniform but time ... `(2)/(3pi)kJ` D. `(1)/(pi)kJ`

A uniform conducting ring of mass `pi` kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field `B = (hat (i) +

Description : A uniform conducting ring of mass `pi` kg and radius 1 m is kept on smooth horizontal table. A uniform but time varying magnetic field `B = (hat (i) +

Last Answer : A uniform conducting ring of mass `pi` kg and radius 1 m is kept on smooth horizontal table. A uniform but time ... `(5)/(pi)s` D. `(25)/(pi)s`

Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure. (A) Small differential (B) Atmospheric (C) Absolute (D) Gage

Description : Working principle of manometer comprises of balancing a coloumn of liquid against the pressure to be measured. Inclined tube manometer is especially used for the measurement of __________ pressure. (A) Small differential (B) Atmospheric (C) Absolute (D) Gage

Last Answer : (A) Small differential

A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant active earth pressure will act at a distance of 2 m above the base and inclined to the horizontal at an angle of (A) 7° (B) 10° (C) 12° (D) 17

Description : A retaining wall 6m high supports a backfill with a surcharge angle of 10°. The back of the wall is inclined to the vertical at a positive batter angle of 5°. If the angle of wall friction is 7°, then the resultant ... inclined to the horizontal at an angle of (A) 7° (B) 10° (C) 12° (D) 17

Last Answer : (C) 12°

Two plane mirrors are inclined at angle `theta` as shown in figure. If a ray parallel to OB strikes the other mirror at P and finally emerges parallel

Description : Two plane mirrors are inclined at angle `theta` as shown in figure. If a ray parallel to OB strikes the other mirror at P and finally emerges parallel

Last Answer : Two plane mirrors are inclined at angle `theta` as shown in figure. If a ray parallel to OB ... OA after two reflections then `theta` is equal to

Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = E + PV, and value of internal energy can not be de

Description : Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = E + PV, and value of internal energy can not be de

Last Answer : Assertion :- Absolute value of enthalpy can not be determined. Reason :- Enthalpy is defined as H = ... . D. If both Assertion & Reason are false.

A force 2P is acting on the double transverse fillet weld. Leg of weld is h and length l. Determine the shear stress in a plane inclined at θ with horizontal. a) PSinθ(Sinθ+Cosθ)/hl b) P(Sinθ+Cosθ)/hl c) Pcosθ(Sinθ+Cosθ)/hl d) None of the listed

Description : A force 2P is acting on the double transverse fillet weld. Leg of weld is h and length l. Determine the shear stress in a plane inclined at θ with horizontal. a) PSinθ(Sinθ+Cosθ)/hl b) P(Sinθ+Cosθ)/hl c) Pcosθ(Sinθ+Cosθ)/hl d) None of the listed

Last Answer : a) PSinθ(Sinθ+Cosθ)/hl

A force 2P is acting on the double transverse fillet weld. Leg of weld is h and length l. Determine the shear stress in a plane inclined at θ with horizontal. a) PSinθ(Sinθ+Cosθ)/hl b) P(Sinθ+Cosθ)/hl c) Pcosθ(Sinθ+Cosθ)/hl d) None of the listed

Description : A force 2P is acting on the double transverse fillet weld. Leg of weld is h and length l. Determine the shear stress in a plane inclined at θ with horizontal. a) PSinθ(Sinθ+Cosθ)/hl b) P(Sinθ+Cosθ)/hl c) Pcosθ(Sinθ+Cosθ)/hl d) None of the listed

Last Answer : a) PSinθ(Sinθ+Cosθ)/hl

The angle of friction is a.The angle which frictional force makes with the normal b.The anle at which the force applied from external souce will cause movement c.The angle at which fictional force is inclined to external force d.The angle between the normal reaction and the resultant of normal reaction and the limiting friction e.None of the above

Description : The angle of friction is a.The angle which frictional force makes with the normal b.The anle at which the force applied from external souce will cause movement c.The angle at which fictional ... the normal reaction and the resultant of normal reaction and the limiting friction e.None of the above

Last Answer : d. The angle between the normal reaction and the resultant of normal reaction and the limiting friction

The work done in sliding a block of weight of 50 kg up a plane inclined at an angle of 30? to the horizontal so that the block is lifted through 1 m ( a.More than 50 kgm b.50 kgm c.Less than 5 kgm d.15 kgm only e.None of the above

Description : The work done in sliding a block of weight of 50 kg up a plane inclined at an angle of 30? to the horizontal so that the block is lifted through 1 m ( a.More than 50 kgm b.50 kgm c.Less than 5 kgm d.15 kgm only e.None of the above

Last Answer : a. More than 50 kgm

A block of weight 20 kg slides with an initial velocity of 2 m sec down an inclined plane on to a spring of stiffness 10 kg/cm. If the co--efficient of friction is 0.2, angle ? = 30 the ratio of maximum compession of spring, neglecting friction to that while considering friction would be a.More than one b.One c.Less than one d.Depends on the stiffness of spring e.None of the above

Description : A block of weight 20 kg slides with an initial velocity of 2 m sec down an inclined plane on to a spring of stiffness 10 kg/cm. If the co--efficient of friction is 0.2, angle ? = 30 the ratio of ... be a.More than one b.One c.Less than one d.Depends on the stiffness of spring e.None of the above

Last Answer : a. More than one

The direction of projection for the range of a projectile to be maximum on an inclined plane having angle of inclination 30? to the horizontal, whould be a.45? with horizontal b.30? with vertical c.30? with horizontal d.60? with inclined plane e.45? with inclined plane

Description : The direction of projection for the range of a projectile to be maximum on an inclined plane having angle of inclination 30? to the horizontal, whould be a.45? with horizontal b.30? with vertical c.30? with horizontal d.60? with inclined plane e.45? with inclined plane

Last Answer : b. 30? with vertical

The angle which an inclined surface makes with the horizontal when a body placed on it is on the point moving down is known as a.Angle of friction b.Angle of limiting friction c.Angle of inclination d.Angle of repose e.None of the above

Description : The angle which an inclined surface makes with the horizontal when a body placed on it is on the point moving down is known as a.Angle of friction b.Angle of limiting friction c.Angle of inclination d.Angle of repose e.None of the above

Last Answer : d. Angle of repose

When two forces acting at a point are such that if the direction of one is reversed, the direction of the resultant is turned through a right angle, the forces must be a.inclined at more than 90? b.inclined at less than 90? c.equal in magnitude d.acting at 180? e.107 dynes

Description : When two forces acting at a point are such that if the direction of one is reversed, the direction of the resultant is turned through a right angle, the forces must be a.inclined at more than 90? b.inclined at less than 90? c.equal in magnitude d.acting at 180? e.107 dynes

Last Answer : c. equal in magnitude

A body of weight W is resting at a plane inclined at 30? to the horizontal. It is attached to a string making an angle of 60? with horizontal. If the angle of friction be 30? the tension in the string would be a.Zero b.W c.W/2 d.2W e.None of the above

Description : A body of weight W is resting at a plane inclined at 30? to the horizontal. It is attached to a string making an angle of 60? with horizontal. If the angle of friction be 30? the tension in the string would be a.Zero b.W c.W/2 d.2W e.None of the above

Last Answer : c. W/2

In which case power required would be more a.In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec b.In lowering a weight of 100 kg along an a inclined plane at an angle of 45? with c.In lifting up a weight of 100 kg at a constant speed of 3 m/sec d.In lowering the weight at a constant speed of 3 m/sec e.In lowering the weight at a velocity of 3 m/sec and acceleration of 1 m/sec2

Description : In which case power required would be more a.In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec b.In lowering a weight of 100 kg along an a inclined plane ... speed of 3 m/sec e.In lowering the weight at a velocity of 3 m/sec and acceleration of 1 m/sec2

Last Answer : a. In lifting up a weight of 100 kg at a velocity of 3 m/sec but accelerating upwards at 0.5 m/sec

A object moves with uniform positive acceleration. Its velocity-time graph will be (a) A straight line parallel to the time axis (b) A straight line inclined at an obtuse angle to the time axis (c) A straight line inclined at an acute angle to the time axis (d) None of these. -Science

Description : A object moves with uniform positive acceleration. Its velocity-time graph will be (a) A straight line parallel to the time axis (b) A straight line inclined at an obtuse angle to the time axis (c) A straight line inclined at an acute angle to the time axis (d) None of these. -Science

Last Answer : Answer is (c)

A diagonal of a rectangle is inclined to one side of the rectangle at 25°. The acute angle between the diagonals is -Maths 9th

Description : A diagonal of a rectangle is inclined to one side of the rectangle at 25°. The acute angle between the diagonals is -Maths 9th

Last Answer : The acute angle between the diagonals is given below.

A diagonal of a rectangle is inclined to one side of the rectangle at 25°. The acute angle between the diagonals is -Maths 9th

Description : A diagonal of a rectangle is inclined to one side of the rectangle at 25°. The acute angle between the diagonals is -Maths 9th

Last Answer : The acute angle between the diagonals is given below.

A ladder is inclined to a wall making an angle of 30° with it. A man is ascending the ladder at the rate of 3 m/sec. How fast is he approaching the wa

Description : A ladder is inclined to a wall making an angle of 30° with it. A man is ascending the ladder at the rate of 3 m/sec. How fast is he approaching the wa

Last Answer : A ladder is inclined to a wall making an angle of 30° with it. A man is ascending the ladder at the ... 3 m/sec. How fast is he approaching the wall ?

Two plane mirrors are inclined at an angle of `30^(@)`, the number of images formed are ______.

Description : Two plane mirrors are inclined at an angle of `30^(@)`, the number of images formed are ______.

Last Answer : Two plane mirrors are inclined at an angle of `30^(@)`, the number of images formed are ______.

A particle is projected with speed v at angle θ to the horizontal on an inclined surface making an angle Φ (Φ < θ) to the horizontal.

Description : A particle is projected with speed v at angle θ to the horizontal on an inclined surface making an angle Φ (Φ < θ) to the horizontal.

Last Answer : A particle is projected with speed v at angle θ to the horizontal on an inclined surface ... range of the projectile along the inclined surface.

A ray of light is inclined to one face of a prism at an angle of `60^@`. If angle of prism is `60^@` and the ray deviated through an angle of `42^@` f

Description : A ray of light is inclined to one face of a prism at an angle of `60^@`. If angle of prism is `60^@` and the ray deviated through an angle of `42^@` f

Last Answer : A ray of light is inclined to one face of a prism at an angle of `60^@`. If angle of ... which the emergent ray makes with second face of the prism.

How many image can a man see if he stands between two plane mirrors inclined at an angle of 60°?

Description : How many image can a man see if he stands between two plane mirrors inclined at an angle of 60°?

Last Answer : 5

Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about (A) 1 to 2° (B) 2 to 5° (C) 5 to 10° (D) 10 to 15°

Description : Tabling process used for separating two materials of different densities by passing the dilute pulp over a table/deck, which is inclined from the horizontal surface at an angle of about (A) 1 to 2° (B) 2 to 5° (C) 5 to 10° (D) 10 to 15°

Last Answer : (B) 2 to 5°

Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the screening of the (A) Light metal powder down upto 4 mesh size (B) Dry chemicals (C) Heavy tonnages of rocks or gravel (D) Powdered food & granular materials

Description : Reciprocating screens are normally inclined at an angle of 5° with the horizontal and employ gyratory motion at feed end & reciprocating motion at the discharge end. They are not suitable for the ... Dry chemicals (C) Heavy tonnages of rocks or gravel (D) Powdered food & granular materials

Last Answer : (C) Heavy tonnages of rocks or gravel

A member is balanced at its end by two inclined members carrying equal forces. For equilibrium the angle between the inclined bars must be (A) 3° (B) 45° (C) 90° (D) 120°

Description : A member is balanced at its end by two inclined members carrying equal forces. For equilibrium  the angle between the inclined bars must be  (A) 3°  (B) 45°  (C) 90°  (D) 120° 

Last Answer : (D) 120° 

Least force required to draw a body up the inclined plane is W sin (plane inclination + friction angle) applied in the direction (A) Along the plane (B) Horizontally (C) Vertically(D) At an angle equal to the angle of friction to the inclined plane

Description : Least force required to draw a body up the inclined plane is W sin (plane inclination + friction  angle) applied in the direction  (A) Along the plane  (B) Horizontally  (C) Vertically  (D) At an angle equal to the angle of friction to the inclined plane 

Last Answer : (D) At an angle equal to the angle of friction to the inclined plane 

The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of (A) Friction (B) Limiting friction (C) Repose (D) Kinematic friction

Description : The angle which an inclined plane makes with the horizontal when a body placed on it is about to move down is known as angle of (A) Friction (B) Limiting friction (C) Repose (D) Kinematic friction

Last Answer : (C) Repose

A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m² when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of internal friction for the soil are respectively (A) 0.5 N/mm² and 30° (B) 0.05 N/mm² and 0° (C) 0.2 N/mm² and 0° (D) 0.05 N/mm² and 45°

Description : A cylindrical specimen of saturated soil failed under an axial vertical stress of 100kN/m² when it was laterally unconfmed. The failure plane was inclined to the horizontal plane at an angle of 45°. The values of cohesion and angle of ... N/mm² and 0° (C) 0.2 N/mm² and 0° (D) 0.05 N/mm² and 45°

Last Answer : Answer: Option B

A plane inclined at an angle to the horizontal at which the soil is expected to stay in the absence of any lateral support, is known as (A) Natural slope line (B) Repose line (C) The line (D) All the above

Description : A plane inclined at an angle to the horizontal at which the soil is expected to stay in the absence of any lateral support, is known as (A) Natural slope line (B) Repose line (C) The line (D) All the above

Last Answer : Answer: Option D

The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes (A) With the horizontal (B) With the vertical (C) With the perpendicular to the inclined plane of the soil (D) None of these

Description : The angle of repose of a soil is the maximum angle which the outer face of the soil mass makes (A) With the horizontal (B) With the vertical (C) With the perpendicular to the inclined plane of the soil (D) None of these

Last Answer : Answer: Option A

An open vessel of water is accelerated up an inclined plane. The free water surface will (A) Be horizontal (B) Make an angle in direction of inclination of inclined plane (C) Make an angle in opposite direction to inclination of inclined plane (D) Any one of above is possible

Description : An open vessel of water is accelerated up an inclined plane. The free water surface will (A) Be horizontal (B) Make an angle in direction of inclination of inclined plane (C) Make an angle in opposite direction to inclination of inclined plane (D) Any one of above is possible

Last Answer : Answer: Option C

In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle . Sensitivity of inclined tube to sensitivity of U-tube is equal to (A) Sin (B) 1/Sin (C) Cos (D) 1/Cos

Description : In order to increase sensitivity of U-tube manometer, one leg is usually inclined by angle . Sensitivity of inclined tube to sensitivity of U-tube is equal to (A) Sin (B) 1/Sin (C) Cos (D) 1/Cos

Last Answer : Answer: Option B

The resolved part of the resultant of two forces inclined at an angle 9 in a given direction is equal to?

Description : The resolved part of the resultant of two forces inclined at an angle 9 in a given direction is equal to

Last Answer : The resolved part of the resultant of two forces inclined at an angle 9 in a given direction is equal to the algebraic sum of the resolved parts of the forces in the given direction.

Frame the formula: The lateral surface area of a cylinder S is equal to twice the product of `pi`, radius (r) and height (h) of the cylinder.

Description : Frame the formula: The lateral surface area of a cylinder S is equal to twice the product of `pi`, radius (r) and height (h) of the cylinder.

Last Answer : Frame the formula: The lateral surface area of a cylinder S is equal to twice the product of `pi`, radius (r) ... `S=pirh` C. `2S=pirh` D. `S=2pirh`

Frame the formula for the volume (v) of a cylinder given by the product of `pi`, square of radius (r) and height (h).

Description : Frame the formula for the volume (v) of a cylinder given by the product of `pi`, square of radius (r) and height (h).

Last Answer : Frame the formula for the volume (v) of a cylinder given by the product of `pi`, square of radius (r) and height (h).

A problem Drum ( 3 ft. diameter ; 6 ft. height ) is field with a fluid whose density is 50 lb/ft^3. Determine the total volume of the fluid.  A. 42.41 ft^3  B.44.35 ft^3  C.45.63 ft^3  D.41.23 ft^3 Formula: Vf = (pi d^2 h) / 4

Description : A problem Drum ( 3 ft. diameter ; 6 ft. height ) is field with a fluid whose density is 50 lb/ft^3. Determine the total volume of the fluid.  A. 42.41 ft^3  B.44.35 ft^3  C.45.63 ft^3  D.41.23 ft^3 Formula: Vf = (pi d^2 h) / 4

Last Answer : 42.41 ft^3

In homogeneous coordinates value of ‘h’ is consider as 1 & it is called….. a.Magnitude Vector b.Unit Vector c.Non-Zero Vector d.Non-Zero Scalar Factor

Description : In homogeneous coordinates value of ‘h’ is consider as 1 & it is called….. a.Magnitude Vector b.Unit Vector c.Non-Zero Vector d.Non-Zero Scalar Factor

Last Answer : d.Non-Zero Scalar Factor

Find the Gauss value for a position vector in Cartesian system from the origin to one unit in three dimensions. a) 0 b) 3 c) -3 d) 1

Description : Find the Gauss value for a position vector in Cartesian system from the origin to one unit in three dimensions. a) 0 b) 3 c) -3 d) 1

Last Answer : b) 3

An isosceles triangle of vertical angle `2theta` is inscribed in a circle of radius `a` . Show that the area of the triangle is maximum when `theta=pi

Description : An isosceles triangle of vertical angle `2theta` is inscribed in a circle of radius `a` . Show that the area of the triangle is maximum when `theta=pi

Last Answer : An isosceles triangle of vertical angle `2theta` is inscribed in a circle of radius `a` . Show that the area of ... pi/4` C. `pi/6` D. None of these.

An arc of a circle of raduis `R` subtends an angle `(pi)/2` at the centre. It carriers a current `i`. The magnetic field at the centre will be

Description : An arc of a circle of raduis `R` subtends an angle `(pi)/2` at the centre. It carriers a current `i`. The magnetic field at the centre will be

Last Answer : An arc of a circle of raduis `R` subtends an angle `(pi)/2` at the centre. It carriers a current `i`. The ... (0)i)/(4R)` D. `(2mu_(0)i)/(5R)`

How many revolutions will a turntable that rotates through an angle of 3 over 2 pi in one second make in 60 seconds?

Description : How many revolutions will a turntable that rotates through an angle of 3 over 2 pi in one second make in 60 seconds?

Last Answer : I guess you mean 3 pi over 2, ie 3Ï€/2 though it may have been given to you as (3/2)Ï€ To solve this, find the total angle turned in 60 seconds and divide by the angle in a whole ... radians = 90Ï€/2Ï€ revolutions = 45 revolutions (45 rpm - the figure calculated - was the standard for a single).