When a line is parallel to both HP and VP Its projection is?
Explanation: The projected length on the plane to which it is inclined will always be shorter than the true length. In figure 2, the line AB is parallel to VP and is inclined to HP. The angle of inclination of AB with HP is being θ degrees. Projection of line AB on VP is a’b’ and is the true length of AB.
Which trace is formed when a line is inclined to VP and parallel to HP?
When a line meets VP (or if necessary on the extended portion of VP), the point at which the line meets or intersects the vertical plane, is called vertical trace (VT) of the line and denoted by the letter V. When the line is parallel to both HP and VP, there will be no traces on the said planes.
When a line is parallel to VP and perpendicular to HP?
A Line AB 25mm is parallel to the VP and perpendicular to the HP.
Which mode allows users to draw 90 straight lines?
Ortho mode
What is VP and HP in drawing?
VP: The plane in front of observer is the vertical plane. (VP) or it is also called a Frontal plane. HP: The plane which is Horizontal and perpendicular to VP is Horizontal Plane. Top View (TV): The projection on the HP is called the Top View (TV) or Horizontal Projection or Plan.
When a point is above HP and behind VP The point is resting in?
Answer. Explanation: The position of reference planes will be similar to quadrants in x, y plane co-ordinate system. As the 2nd quadrant lies above the x-axis and behind the y-axis here also the 2nd quadrant is above H.P, behind V.P.
What are the four methods of projection?
There are four main types of projection methods used in mechanical drawing in order to convey information such as geometry, dimensions, tolerances, material and finish….Let our resources save you time and money!
- Orthographic Projection.
- Axonometric Projection.
- Oblique Projection.
- Perspective Projection.
What are the two types of projection?
There are two type of projection parallel and perspective.
- Parallel Projection : Parallel projections are used by architects and engineers for creating working drawing of the object, for complete representations require two or more views of an object using different planes.
- Perspective Projection :
What is the first angle?
In the first angle projection, the object is placed in the 1st quadrant. The object is positioned at the front of a vertical plane and top of the horizontal plane. First angle projection is widely used in India and European countries. The object is placed between the observer and projection planes.
Why second angle and fourth angle is not used?
As per rule of projection when the horizontal plane is rotated 90 degree in clockwise direction, top and front view will overlap. Therefore the 2nd angle projection system is not used to draw engineering drawings. Similarly when the object is placed in the 4th quadrant both top and front view will overlap.
Why do we use 1st angle and 3rd angle projection?
Europe had used the method of first angle projection in creating orthographic views of three-dimensional parts for manufacturing for many decades, while in the U.S., engineers had settled on using third angle projection with its more logical placement of views.
How do you find angle of projection?
The maximum height achieved by a projectile ignoring the air resistance is given by HM=U2Sin2 θ 2g… (1) where U is the initial velocity, θ is the angle of projection and g is the acceleration due to gravity. The horizontal distance covered by the projectile i.e. range is given by, R=U2Sin2 θ g…
What is the formula of horizontal range?
In the horizontal direction, the object travels at a constant speed v0 during the flight. The range R (in the horizontal direction) is given as: R=v0⋅T=v0√2Hg R = v 0 ⋅ T = v 0 2 H g .
What is angle of projection for maximum horizontal range?
Complete step by step answer: If the angle of projection is 75.96∘, the maximum height is equal to the horizontal range.
What is the angle of projection for a body for maximum horizontal range in angle?
The textbooks say that the maximum range for projectile motion (with no air resistance) is 45 degrees.
What is the angle of projection at which horizontal range and maximum height is equal?
Find the angle of projection at which horizontal range and maximum height are equal. or θ70∘58′. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.
What angle of projection would result in a ball traveling the maximum horizontal distance?
The sine function reaches its largest output value, 1, with an input angle of 90 degrees, so we can see that for the longest-range punts 2θ = 90 degrees and, therefore, θ = 45 degrees. A projectile, in other words, travels the farthest when it is launched at an angle of 45 degrees.
What is the angle of projection for a bullet fired over a horizontal plane when horizontal range is equal to 4 times the maximum height?
45°.