1.
Which of the following represent enlarging scale?
Correct Answer
C. 2.5:1
Explanation
Enlarging scale refers to a scale where the object being represented is larger than its actual size. In the given options, the scale 2.5:1 represents enlarging scale because it indicates that the object is being represented 2.5 times larger than its actual size.
2.
In third angle projection method, object is assumed to be placed
Correct Answer
B. In front of viewer and plane
Explanation
In third angle projection method, the object is assumed to be placed in front of the viewer and the plane. This means that the object is positioned between the viewer and the projection plane. This allows for a more realistic representation of the object, as it is projected onto the plane from the perspective of the viewer.
3.
Choose the figure that represents Third angle projection
Correct Answer
C.
4.
The ratio of Length : Width in case of an arrow head is ______________
Correct Answer
3:1, 3 : 1, 3: 1, 3 :1
Explanation
The ratio of Length : Width in case of an arrow head is 3:1. This means that the length of the arrow head is three times the width. The answer provided is simply different ways of expressing the same ratio, with or without spaces between the numbers and the colon.
5.
When the line is parallel to Horizontal Plane (HP) and perpendicular to Vertical Plane (VP), we can get its true length in
Correct Answer
A. Front view
Explanation
When the line is parallel to the Horizontal Plane (HP) and perpendicular to the Vertical Plane (VP), its true length can be determined in the front view. In the front view, the line is projected onto the HP, allowing us to measure its true length accurately. The top view would not provide the true length as the line is perpendicular to the VP in this case. The side view is also not applicable as it does not provide any information about the true length of the line. Therefore, the front view is the correct answer for determining the true length of the line.
6.
The front view of a rectangle, when its plane is perpendicular to both HP and VP, is
Correct Answer
Line, line
Explanation
When the plane of a rectangle is perpendicular to both the horizontal plane (HP) and the vertical plane (VP), its front view will appear as two parallel lines. This is because the rectangle's length and width will be projected onto the HP and VP as lines that are parallel to each other.
7.
Which of the following position is not possible for a right solid?
Correct Answer
D. Axis perpendicular to both VP and HP
Explanation
A right solid is a three-dimensional object that has a circular or elliptical base and its axis is perpendicular to both the horizontal plane (HP) and the vertical plane (VP). In this case, the axis is perpendicular to both VP and HP, which means it is not possible for a right solid. This is because the axis of a right solid must be perpendicular to both planes in order to maintain its shape and symmetry.
8.
A right circular cone resting on HP on its base is cut by a section plane 30° inclined to HP, bisecting its axis. The true shape of the section is
Correct Answer
C. Ellipse
Explanation
When a right circular cone is cut by a section plane that is inclined to the horizontal plane (HP) and bisects its axis, the resulting section will be an ellipse. This is because an inclined plane passing through a cone will create a curved section that is not a circle, parabola, or hyperbola. The shape will be an ellipse, which is a closed curve with a symmetric shape.
9.
Choose the correct simple position for the question given below.
A hexagonal plate of side X mm rests on the VP on one of its corners with the sides containing the corner being equally inclined to the VP. A diagonal passing through the resting corner is inclined at Y° to the HP. The surface of the plate makes Z° with the VP. Draw the plan and elevation.
Correct Answer
C.
10.
ISO stands for
Correct Answer
International Organization for Standardization
Explanation
ISO stands for International Organization for Standardization. This organization is responsible for developing and publishing international standards that ensure products, services, and systems are safe, reliable, and of good quality. ISO standards cover a wide range of industries and sectors, including technology, manufacturing, healthcare, and agriculture. The organization works with experts from around the world to establish these standards, which help to facilitate international trade and promote global cooperation. ISO's goal is to provide a common framework for organizations to follow, leading to increased efficiency, improved safety, and enhanced customer satisfaction.
11.
A MITER line offers a convenient method of laying out a third view while you are in the process of drawing two views.
Correct Answer
A. True
Explanation
A MITER line is a line that connects corresponding points on two views of an object. By drawing a MITER line, you can easily transfer measurements and proportions from one view to another, allowing you to accurately create a third view. This makes the process of drawing multiple views of an object more efficient and convenient. Therefore, the statement that a MITER line offers a convenient method of laying out a third view while you are in the process of drawing two views is true.
12.
If a line is parallel to one of its reference plan, it will have trace on that reference plane.
Correct Answer
B. False
Explanation
If a line is parallel to one of its reference planes, it will not have a trace on that reference plane. The trace of a line on a plane occurs when the line intersects the plane. Therefore, if the line is parallel to the plane, it will never intersect it and thus will not have a trace on that plane.