1. A ___________ is any quantity that always has the same value.
a) Variable
b) Constant
c) Function
d) Stable
Explanation: A fixed value.
In Algebra, a constant is a number on its own, or sometimes a letter such as a, b or c to stand for a fixed number.
Example: in “x + 5 = 9”, 5 and 9 are constants
If it is not a constant it is called a variable.
2. This is a mathematical equation which expresses the relationship of a group of variables and constants.
a) Function
b) Functional modulus
c) Variables
d) Scales
Explanation: In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. An example is the function that relates each real number x to its square x2. The output of a function f corresponding to an input x is denoted by f(x) (read “f of x”). In this example, if the input is −3, then the output is 9, and we may write f(−3) = 9. Likewise, if the input is 3, then the output is also 9, and we may write f(3) = 9. (The same output may be produced by more than one input, but each input gives only one output.) The input variable(s) are sometimes referred to as the argument(s) of the function.
3. This is defined as the product of functional modulus and common constant coefficient of a function variable.
a) Modulus of elasticity
b) Function
c) Scale modulus
d) Functional modulus
Explanation: Scale modulus M = Constant coefficient of function * Functional modulus
Z = 2x + 2y = 2 (x+y)
M = 2* m.
4. This is defined as the length of the scale for a unit value of the functional variable.
a) Functional modulus
b) Young’s modulus
c) Modulus of elasticity
d) Constant modulus
Explanation: Mathematically, we can write as
m = L/(f(xmax)-f(xmin), where m is the functional modulus
L = scale length
xmax and xmin represent the value of the variable x corresponding to the maximum and minimum values of the function respectively.
5. ____________ is a rectangular pattern of lines or dots which covers in the entire XY plane of user coordinate system.
a) Ortho
b) Grid
c) Snap
d) Tolerance
Explanation: Grid is used to inhance the drawing speed and efficiency with specified spacing, angle and alignment. Snap restricts the movement of the crosshairs to intervals that you define.
6. Which command converts discrete object in polyline?
a) Merge
b) Union
c) Join
d) Add
Explanation: Some reasons you may choose to use polylines include the following:
• Vertices remain joined even after grip editing
• Absolute line width (as an alternative to relative line weight) that can be constant or tapered across a segment
• Move and copy a polyline as a unit
• Easily create rectangles and polygons as single objects
• Smart application of non-continuous line types across vertices
• Easy extrusion for 3D solids in AutoCAD.
7. The offset command cannot be used to create__________
a) Concentric circles
b) Vertical straights
c) Three parallel lines
d) Parallel arcs
Explanation: To offset an object, select the source object; click the offset button from the Edit Object Toolbar. Specify a point on canvas to offset through using tap or drag.
The Offset command creates a new object whose shape is parallel to that of the selected object. The Offset button is located in the Edit Object toolbar when tapping on any editable shape.
After the offset distance was specified, you can set it manually by inserting a value to the units bar (by tapping on the input box). Tap “Done” (“V” button) to finish specify the distance.
8. Which axis is not used when working in 2-D frame?
a) Z-axis
b) Y-axis
c) X-axis
d) WCS
Explanation: The User Coordinate System defines
• The XY plane, also called the work plane, on which objects are created and modified
• The horizontal and vertical directions used for features like Ortho mode, polar tracking, and object snap tracking
• The alignment and angle of the grid, hatch patterns, text, and dimension objects
• The origin and orientation for coordinate entry and absolute reference angles
• For 3D operations, the orientation of work planes, projection planes, and the Z axis for vertical direction and axis of rotation
You can change the location and orientation of the current UCS by clicking the UCS icon and using its grips, or with the UCS command.
Display options for the UCS icon are available with the UCSICON command.
9. What is the minimum allowable numbers of layers in a drawing?
a) 0
b) 1
c) 2
d) 10
Explanation: The minimum allowable numbers of layers in a drawing is 1
10. Which is corresponded to zoom mouse wheel?
a) Extend/all
b) Zoom in/ Zoom out
c) Pan and scan
d) Scale
Explanation: To use the Zoom command’s Window option, you click one corner, release the mouse button, and then click the other corner. Realtime: Enables you to zoom in and out by starting a realtime zoom and then dragging the magnifying-glass cursor up (to zoom in) or down (to zoom out).