Description : Two forces, F1 and F2, each of magnitude 5 N are inclined to each other at 60°. Find the magnitude and direction of their resultant force.
Last Answer : Two forces, F1 and F2, each of magnitude 5 N are inclined to each other at 60°. Find the magnitude and direction of their resultant force.
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°
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.
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?
Description : Minimum numbers of unequal vectors which can give zero resultant are - (1) Two (2) Three (3) Four (4) More than four
Last Answer : (2) three Explanation: Minimum number of unequal vectors which can give three zero resultants.
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?
Description : Define and explain the following terms: i. Zero vector (Null vector) ii. Resultant vector iii. Negative vectors iv. Equal vectors
Last Answer : Define and explain the following terms: i. Zero vector (Null vector) ii. Resultant vector ... vectors iv. Equal vectors v. Position vector
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
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.
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
Description : The locus of the end point of the resultant of the normal and tangential components of the stress on an inclined plane, is (A) Circle (B) Parabola (C) Ellipse (D) Straight line
Last Answer : (C) Ellipse
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°
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
Description : The magnitude of scalar product of two unit vectors perpendicular to each other is
Last Answer : The magnitude of scalar product of two unit vectors perpendicular to each other is (A) zero (B) 1 (C) -1 (D) 2
Description : Two forces of 6 and 8 kg act at right angles to each other, the resultant force will be a.100 b.28 c.41 d.14 e.10
Last Answer : e. 10
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
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
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
Description : 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
Last 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`
Description : Contours of different elevations may cross each other only in the case of (A) An overhanging cliff (B) A vertical cliff (C) A saddle (D) An inclined plane
Last Answer : (A) An overhanging cliff
Description : A joint of a frame is subjected to three tensile forces P, Q and R equally inclined to each other. If P is 10 tonnes, the other forces will be (A) Q = 10 tonnes and R = zero (B) R + 10 tonnes and Q = zero (C) Q + R = 10 tonnes (D) Q and R each is equal to 10 tonnes
Last Answer : (D) Q and R each is equal to 10 tonnes
Description : It is easier to carry two buckets of water in one hand each, than to carry only one in one hand because – (1) weights of buckets are balanced (2) centre of gravity falls within the body (3) centre of gravity and centre of equilibrium fall within the feet (4) resultant weight of buckets is zero
Last Answer : (3) centre of gravity and centre of equilibrium fall within the feet Explanation: When the buckets containing equal amount of water are held in both hands, weight is spaced out more evenly than it ... centre of gravity and the centre of equilibrium should fall, in the present case, within the feet.
Description : It is easier to carry two buckets of water in one hand each, than to carry only one in one hand because (1) weights of buckets are balanced (2) centre of gravity falls within the body (3) centre of gravity and centre of equilibrium fall within the feet (4) resultant weight of buckets is zero
Last Answer : centre of gravity and centre of equilibrium fall within the feet
Description : Out of five resistance of `ROmega` each 3 are connected in parallel and are joined to the rest 2 in series. Find the resultant resistance.
Last Answer : Out of five resistance of `ROmega` each 3 are connected in parallel and are joined to the rest 2 in series. Find ... `(7//8)ROmega` D. `(8//7)ROmega`
Description : When providing care to the patient with bilateral nephrostomy tubes, the nurse never does which of the following? a) Clamps each nephrostomy tube when the patient is moved The nurse must never clamp a ... saline q8h as ordered The nurse may irrigate a nephrostomy tube with specific orders to do so.
Last Answer : a) Clamps each nephrostomy tube when the patient is moved The nurse must never clamp a nephrostomy tube because it could cause obstruction and resultant pyelonephritis.
Description : Which of the following statements is a requirement of Coast Guard Regulations (46 CFR) concerning emergency diesel generator engines? A. The fuel must have a flash point not less than 75°F. B. ... to each side of the vertical. D. The starting battery must produce 12 consecutive cranking cycles.
Last Answer : Answer: C
Description : Read the following four statements (A-D) about certain mistakes in two of them. (A) The first transgenic buffalo, Rosie produced milk which was human alpha-lactalbumin enriched. (B) Restriction enzymes are used in isolation of DNA ... mistakes? (a) B and C (b) C and D (c) A and C (d) A and B
Last Answer : (d) A and B
Description : Other than spreading malaria, Anopheles mosquitoes are also vectors of - (a) dengue fever (b) filariasis (c) encephalitis (d) yellow fever
Last Answer : Ans:(b)
Description : Other than spreading malaria; anopheles mosquitoes are also vectors of?
Last Answer : filariasis
Description : A rectangular tank 10 m x 5 m in plan and 3 m deep is divided by a partition wall parallel to the shorter wall of the tank. One of the compartments contains water to a depth of 3 m, and the other a lighter ... pressure thrust on the partition wall is (a) 1000 kg (b) 1500 kg (c) 2000 kg (d) 2500 kg
Last Answer : Correct Answer is 15000 kg
Description : Which of the following precautions should be taken when troubleshooting various power circuits using a common solenoid-type mechanical voltage tester (wiggins)? A. Never use this tester on circuits greater ... voltage expected in the circuit in order to prevent damage from an off-scale reading.
Last Answer : Answer: A
Description : Name the type of bond in which there is an unequal attraction for the shared electrons and a resultant unbalanced distribution of charge:
Last Answer : ANSWER: POLAR COVALENT BOND
Description : Two bodies of mass 6 kg and 9 kg are connected with a light inextensile string passing over a smooth pulley with one of the bodies on a smooth inclined plane (θ = 30°) and the other hanging freely from the ... kg up the entire length is half the time taken by 6 kg to pull 9 kg over the same plane.
Last Answer : Given: Mass of body A (mA) = 6 kg Mass of body B (mB) = 9 kg Angle of inclination of the plane (θ) = 30° Let's assume that the acceleration of body A (aA) and body B (aB) are in opposite ... we know that the time taken (t) is given by the formula: t = √(2d/a), where d is the distance travelled
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
Description : The type of pile which is driven at an inclination to resist inclined forces is known as (A) Friction pile (B) Sheet pile (C) Batter pile (D) Anchor pile
Last Answer : Answer: Option C
Description : How can we derive the expression for cross product of two vectors?
Last Answer : Here is a video that shows where the term cross comes from. Two vectors in a 3D space when “multiplied” by each other result in a third vector that represents how they “cross” each other.
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.
Description : If A = 2i - j + k and B = i + 2j - k are two vectors, find |A x B|.
Last Answer : If A = 2i - j + k and B = i + 2j - k are two vectors, find |A x B|.
Description : Find the scalar product of the two vectors v1 = i + 2j + 3k and v2 = 3i + 4j - 5k.
Last Answer : Find the scalar product of the two vectors v1 = i + 2j + 3k and v2 = 3i + 4j - 5k.
Description : Show that magnitude of vector product of two vectors is numerically equal to the area of a parallelogram formed by the two vectors.
Last Answer : Show that magnitude of vector product of two vectors is numerically equal to the area of a parallelogram formed by the two vectors.
Description : Derive an expression for cross product of two vectors and express it in determinant form.
Last Answer : Derive an expression for cross product of two vectors and express it in determinant form.
Description : State the characteristics of the vector product (cross product) of two vectors.
Last Answer : State the characteristics of the vector product (cross product) of two vectors.
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.
Description : Discuss characteristics of scalar product of two vectors.
Last Answer : Discuss characteristics of scalar product of two vectors.
Description : Explain scalar product of two vectors with the help of suitable examples.
Last Answer : Explain scalar product of two vectors with the help of suitable examples.
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?
Description : The diagonal of the parallelogram made by two vectors as adjacent sides is not passing through common point of two vectors. What does it represent?
Last Answer : The diagonal of the parallelogram made by two vectors as adjacent sides is not passing through common point of two vectors. What does it represent?
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.
Description : It is possible to add two vectors representing physical quantities having different dimensions.
Last Answer : State true or false. If false correct the statement and rewrite: It is ... vectors representing physical quantities having different dimensions.