1.
Which of the following represent reducing scale?
Correct Answer
A. 1:2
Explanation
The ratio 1:2 represents reducing scale because it indicates that the size or measurement of the object is being reduced. In this ratio, for every 1 unit on the drawing or model, the actual size is 2 units. This means that the drawing or model is smaller than the actual object, making it a reducing scale.
2.
In first angle projection method, object is assumed to be placed
Correct Answer
A. Between viewer and plane
Explanation
In first angle projection method, the object is assumed to be placed between the viewer and the plane. This means that the object is positioned in such a way that it is closer to the viewer than the plane on which the projection is being made. This method is commonly used in engineering and technical drawings to represent the object's shape and dimensions accurately.
3.
Choose the figure that represents First angle projection
Correct Answer
A.
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 the case of an arrow head is 3:1.
5.
When the line is parallel to both Horizontal Plane (HP) and Vertical Plane (VP), we can get its true length in
Correct Answer
C. Both Front and Top view
Explanation
When the line is parallel to both the Horizontal Plane (HP) and Vertical Plane (VP), we can determine its true length in both the Front view and the Top view. In the Front view, we can measure the length of the line projected on the HP, while in the Top view, we can measure the length projected on the VP. Since the line is parallel to both planes, the true length of the line will be the same in both views.
6.
The front view of a rectangle, when its plane is parallel to HP and perpendicular to VP, is
Correct Answer
Line, line
Explanation
When the plane of the rectangle is parallel to the horizontal plane (HP) and perpendicular to the vertical plane (VP), the front view of the rectangle appears as two parallel lines. This is because when a rectangle is viewed from the front in this orientation, only the two parallel sides are visible, giving the impression of two lines.
7.
Which of the following position is not possible for a right solid?
Correct Answer
D. Axis perpendicular to both VP and HP
Explanation
The given question is asking for a position that is not possible for a right solid. A right solid is a three-dimensional shape where the axis is perpendicular to both VP (vertical plane) and HP (horizontal plane). The correct answer is "Axis perpendicular to both VP and HP" because this position is not possible for a right solid. If the axis is perpendicular to both VP and HP, it means that the solid is not aligned with either plane, which is not possible for a right solid.
8.
A right circular cone resting on HP on its base is cut by a section plane parallel to HP, bisecting its axis. The true shape of the section is
Correct Answer
D. Circle
Explanation
When a right circular cone is cut by a section plane parallel to its base and bisecting its axis, the resulting section is a circle. This is because the intersection of a plane with a cone parallel to its base forms a circle. The fact that the section plane bisects the axis means that the resulting circle will also be symmetric. Therefore, the correct answer is Circle.
9.
Choose the simple position for the following question.
A Hexagonal pyramid of base side X mm and axis height Y mm rests on the HP on one of its base edges such that the triangular face containing the resting edge is perpendicular to both HP and The VP. Draw its projections.
Correct Answer
B.
Explanation
The simple position for the given question would be the front view projection of the hexagonal pyramid. In this position, the base of the pyramid is parallel to the picture plane and all the edges of the base are visible. The triangular face containing the resting edge would be seen as a straight line in the front view. The top view projection would show the shape of the base as a regular hexagon, and the side view projection would show the height of the pyramid.
10.
BIS stands for
Correct Answer
Bureau of Indian standards
Explanation
BIS stands for Bureau of Indian standards, which is a national standards body in India. It is responsible for the formulation and implementation of standards across various sectors to ensure quality and safety of products and services. BIS plays a crucial role in promoting consumer protection, facilitating trade, and supporting technological advancements in the country.
11.
If a line is parallel to one of its reference plan, it will not have trace on that reference plane.
Correct Answer
A. True
Explanation
If a line is parallel to one of its reference planes, it means that the line does not intersect or touch that reference plane at any point. Therefore, the line will not have any trace on that reference plane. This is because the trace of a line on a plane is the point where the line intersects or touches the plane. Since the line is parallel to the reference plane, it will not have any intersection or contact with the plane, resulting in no trace on that reference plane.
12.
A miter line offers a convenient method of arriving top view from its front view.
Correct Answer
B. False
Explanation
A miter line does not offer a convenient method of arriving at a top view from its front view. A miter line is used in woodworking to create precise angles, typically at 45 degrees. It is not related to creating views in engineering or technical drawings. Therefore, the statement is false.
13.
A point is above HP, its front view is __________ the reference line
Correct Answer
above, Above
Explanation
The answer is "above, Above" because the question is asking for the relationship between the point and the reference line in its front view. Since the point is above HP (horizontal plane), it will also be above the reference line in its front view. The repetition of "above" and "Above" in the answer reinforces this relationship.
14.
A point is in front of VP, its top view is _________ reference line
Correct Answer
Below, below
Explanation
The correct answer is "Below, below" because when a point is in front of the VP (Vanishing Point), its top view will be below the reference line. This means that the point will be located below the line when viewed from the top. The repetition of "below" emphasizes that the point's top view is consistently positioned beneath the reference line.