A number of forces acting at a point will be in equilibrium if sum of resolved parts in any two per-pendicular directions are both zero.

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Mar 22, 2018
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editedFeb 7, 2021

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**Description :** Two non-collinear parallel equal forces acting in opposite direction?

**Last Answer :** Two non-collinear parallel equal forces acting in opposite direction constitute a couple.

**Last Answer :** Forces are called coplanar when all of them acting on body lie in one plane.

**Description :** The algebraic sum of moments of the forces forming couple about any point in their plane is?

**Last Answer :** The algebraic sum of moments of the forces forming couple about any point in their plane is equal to the moment of the couple.

**Description :** The forces, which meet at one point, but their lines of action do not lie in a plane, are called?

**Last Answer :** The forces, which meet at one point, but their lines of action do not lie in a plane, are called non-coplanar concurrent forces.

**Description :** The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of

**Last Answer :** The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is as per the principle of resolution of forces.

**Description :** If a number of forces act simultaneously on a particle, it is possible?

**Last Answer :** If a number of forces act simultaneously on a particle, it is possible to replace them by a single force.

**Description :** According to principle of transmissibility of forces, the effect of a force upon a body is?

**Last Answer :** According to principle of transmissibility of forces, the effect of a force upon a body is the same at every point in its line of action.

**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 :** If two equal forces of magnitude P act at an angle 9°, their resultant will be

**Last Answer :** If two equal forces of magnitude P act at an angle 9°, their resultant will be IP cos 9/2.

**Description :** Forces are called concurrent when their lines of action meet in?

**Last Answer :** Forces are called concurrent when their lines of action meet in one point.

**Description :** What number is your Willpower?

**Last Answer :** 10 but then I cheated so I don’t know… but I’m being honest about it so 10 or am I lying again… so definitely between 1 and 10

**Description :** What is the choice of size and number of generator units in interconnected power system?

**Last Answer :** Choice of Size and Number of Generating Units: 1. The size/rating and number of generating units in such way that they approximately match with the load curve as closely as possible. 2. In ... , if power plant is connected to grid system then generating unit of higher capacity can be installed.

**Description :** The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be A) 3 B) 2 C) 4 D) 5

**Last Answer :** The number of loop equations required to completely analysing a network comprising of 8 independent branches and 6 nodes including the reference node shall be 3

**Description :** A connected graph has ‘5’ number of branches and ‘4’ number of nodes. It's rank is A) 1 B) 2 C) 3 D) 4

**Last Answer :** A connected graph has ‘5’ number of branches and ‘4’ number of nodes. It's rank is 3

**Description :** Then number of T-states of the instruction STA in 8085 microprocessor is A) 10 B) 12 C) 13 D) 16

**Last Answer :** Then number of T-states of the instruction STA in 8085 microprocessor is 13

**Description :** The number of terminals present in IGBT is A) 2 B) 3 C) 4 D) 5

**Last Answer :** The number of terminals present in IGBT is 3

**Description :** Increasing the number of turns of wire on the secondary of a transformer will (A) Decrease the secondary current (B) Increase the primary current (C) Have no effect on the secondary current (D) Increase the secondary current

**Last Answer :** Increasing the number of turns of wire on the secondary of a transformer will Decrease the secondary current

**Description :** What is the Gray code word for the binary number 101011? (1) 101011 (2) 110101 (3) 011111 (4) 111110

**Last Answer :** What is the Gray code word for the binary number 101011? (1) 101011 (2) 110101 (3) 011111 (4) 111110

**Description :** The number of poles of 8/6 stepper motor can be :

**Last Answer :** The number of poles of 8/6 stepper motor can be : 4

**Description :** lt the length, number of turns and area of a coil are doubled, the inductance of the coil

**Last Answer :** lt the length, number of turns and area of a coil are doubled, the inductance of the coil is quadrupled

**Description :** The number of independent equations to solve a network is equal to?

**Last Answer :** The number of independent equations to solve a network is equal to the number of chords.

**Description :** The number of electrons in the outer most orbit of carbon atom is?

**Last Answer :** The number of electrons in the outer most orbit of carbon atom is 4.

**Description :** Build using minimum number of CMOS gates. Three input NAND gate. Two input NOR gate Three input NOR gate Two input AND gate Two input OR gate

**Last Answer :** Three input NAND gate. Two input NOR gate Three input NOR gate Two input AND gate Two input OR gate

**Last Answer :** The number of brushes in a commutator depends on amount of current to be collected.

**Last Answer :** In lap winding, the number of brushes is always same as the number of poles.

**Description :** What is the maximum number of circuit breakers in a panel?

**Last Answer :** It depends on that which type of panel is this.

**Description :** What are the number of valence electrons of atoms in semiconductor?

**Last Answer :** There are four valence electrons in the atom of a semiconductor.

**Description :** If a rigid body is in equilibrium under the action of three forces, then?

**Last Answer :** If a rigid body is in equilibrium under the action of three forces, then the lines of action of these forces meet in a point, the lines of action of these forces are parallel.

**Description :** A number of forces acting at a point will be in equilibrium if a.Sum of the forces is zero b.Algebraic sum of the forces is zero c.Sum of the resolved parts in any two perpendicular directions are both zero d.None of the above e.The metacentre of the body

**Last Answer :** d. None of the above

**Description :** Which is the correct statement about law of polygon of forces? (A) If any number of forces acting at a point can be represented by the sides of a polygon taken in order, then the ... direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

**Last Answer :** (D) If any number of forces acting at a point can be represented in direction and magnitude by the sides of a polygon taken in order, then the forces are in equilibrium

**Description :** A number of forces acting at a point will be in equilibrium if (A) Their total sum is zero (B) Two resolved parts in two directions at right angles are equal (C) Sum of resolved parts in any two perpendicular directions are both zero (D) All of them are inclined equally

**Last Answer :** (C) Sum of resolved parts in any two perpendicular directions are both zero

**Description :** The necessary condition for the forces acting on a body to be in equilibrium is that these should be a.In the same direction b.Coplaner c.Similar in nature d.Should not meet at a point e.(B) and (D) above

**Last Answer :** e. (B) and (D) above

**Description :** The statement ---- if three forces acting at a point are in equilibrium, each force is proportional to the sine of the angle between the other two ---- is known as a.Law of polygon of forces b.D'Alembert's principle c.Newtons law of forces d.Lami's theorem e.Law of triangle of forces

**Last Answer :** d. Lami's theorem

**Description :** According to law of triangle of forces (A) Three forces acting at a point will be in equilibrium (B) Three forces acting at a point can be represented by a triangle, each side ... point are in equilibrium, each force is proportional to the sine of the angle between the other two

**Last Answer :** (C) If three forces acting upon a particle are represented in magnitude and direction by the sides of a triangle, taken in order, they will be in equilibrium

**Description :** If three forces acting in one plane upon a rigid body, keep it in equilibrium, then they must either (A) Meet in a point (B) Be all parallel (C) At least two of them must meet (D) All the above are correct

**Last Answer :** (D) All the above are correct

**Description :** According to Lami's theorem (A) Three forces acting at a point will be in equilibrium (B) Three forces acting at a point can be represented by a triangle, each side being proportional to ... point are in equilibrium, each force is proportional to the sine of the angle between the other two

**Last Answer :** Answer: Option D

**Description :** If three forces acting in different planes can be represented by a triangle, these will be in (A) Non-equilibrium (B) Partial equilibrium (C) Full equilibrium (D) None of the above

**Last Answer :** (A) Non-equilibrium

**Description :** two forces acting at a joint are not along the straight line, then for the equilibrium of the joint (A) One of the forces must be zero (B) Each force must be zero (C) Forces must be equal and of the same sign (D) Forces must be equal in magnitude but opposite in sign

**Last Answer :** (B) Each force must be zero

**Description :** For a body to be in equilibrium, which of the following conditions must exist? w) no forces may be acting on the body. x) the body must be accelerating. y) the velocity of the body must be zero. z) the sum of the forces acting on the body must be equal to zero.

**Last Answer :** ANSWER: Z -- THE SUM OF THE FORCES ACTING ON THE BODY MUST BE EQUAL TO ZERO.

**Description :** If an object is in a state of equilibrium, what can be said about all of the forces acting on the object?

**Last Answer :** ANSWER: THE SUM OF ALL FORCES ACTING ON THE OBJECT IS ZERO

**Description :** A single force and a couple acting in the same plane upon a rigid body?

**Last Answer :** A single force and a couple acting in the same plane upon a rigid body cannot balance each other.

**Description :** A force acting on a body may?

**Last Answer :** A force acting on a body may introduce internal stresses, balance the other forces acting on it, retard its motion, change its motion.

**Description :** A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if?

**Last Answer :** A heavy ladder resting on floor and against a vertical wall may not be in equilibrium, if the floor and wall both are smooth surfaces.

**Description :** The statement --- if forces acting on a point can be represented in magnitude and direction by the sides of a polygon taken in order then their resultant will be represented in magnitude and direction by the closing ... 's law of forces c.Law of polygon of forces d.D'Alembert's rule e.Lami's theorem

**Last Answer :** c. Law of polygon of forces

**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 :** When all the forces acting on a body lie in one plane and their lines of action meet at one point, the forces a.constitute a moment b.constitute a couple c.are known as coplaner-concurrent forces. d.are known as non-coplaner forces e.107 dynes

**Last Answer :** c. are known as coplaner-concurrent forces.

**Description :** Forces are called coplanar when all of them acting on body lie in (A) One point (B) One plane (C) Different planes (D) Perpendicular planes

**Last Answer :** (B) One plane

**Description :** The necessary condition of equilibrium of a body is a.The algebraic sum of horizontal components of all forces must be zero b.The algebraic sum of vertical components of all forces must be zero c.The algebraic sum of forces about a point must be zero d.All the above e.None of the above

**Last Answer :** d. All the above

**Description :** A rigid body is in equilibrium under the action of these forces when a.These forces are equal b.The lines of action of these forces are parallel c.The lines of action of these forces meet in a point d.(A) and (B) above e.(B) and (C) above

**Last Answer :** e. (B) and (C) above

**Description :** If a rigid body is in equilibrium under the action of three forces, then (A) These forces are equal (B) The lines of action of these forces meet in a point (C) The lines of action of these forces are parallel (D) Both (B) and (C) above

**Last Answer :** (D) Both (B) and (C) above