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MCQ - Mechanical TNPSC JTO
JTO - 551 - Engineering Drawing and Draughtsman - 551 - unit - 05 - Isometric Projection and Oblique Projection

26)   

 In isometric projection, which lines are shown  in true length?

A.
B.
C.
D.
Answer: C
27)   

 In isometric drawing, how are arcs and circles on the vertical plane represented?

A.
B.
C.
D.
Answer: A
28)   

When dimensioning an isometric drawing, which  of the following is preferred?

A.
B.
C.
D.
Answer: C
29)   

Which trigonometric value corresponds to the scale reduction in isometric projection? 

A.
B.
C.
D.
Answer: B
30)   

A line of 100 mm is drawn in isometric projection.  Its approximate projected length will be: 

A.
B.
C.
D.
Answer: B
31)   

The key difference in appearance between isometric drawing and projection is: 

A.
B.
C.
D.
Answer: D
32)   

 Isometric projection is to isometric drawing as: 

A.
B.
C.
D.
Answer: B
33)   

 In first-angle projection, the object lies: 

A.
B.
C.
D.
Answer: B
34)   

 Which of the following orthographic views shows  height and width? 

A.
B.
C.
D.
Answer: C
35)   

Which view is  not usually necessary  if the object  is symmetrical?

A.
B.
C.
D.
Answer: D
36)   

 The most important reason for selecting correct orthographic views is:

A.
B.
C.
D.
Answer: C
37)   

Oblique projection differs from isometric in:

A.
B.
C.
D.
Answer: B
38)   

  In cabinet oblique projection, depth is scaled  by a factor of: 

A.
B.
C.
D.
Answer: A
39)   

 In general oblique projection, the receding lines  are drawn at: 

A.
B.
C.
D.
Answer: C
40)   

A major advantage of oblique projection for circles on the front face is:

A.
B.
C.
D.
Answer: A
41)   

The isometric projection is drawn using angles of:

A.
B.
C.
D.
Answer: D
42)   

In isometric drawing, a horizontal edge is typically  drawn at: 

A.
B.
C.
D.
Answer: B
43)   

The three axes in isometric projection are:

A.
B.
C.
D.
Answer: C
44)   

What is the appearance of a cube in isometric  projection?

A.
B.
C.
D.
Answer: C
45)   

Which line is called a non-isometric line?

A.
B.
C.
D.
Answer: C
46)   

Which of the following is  not true  about isometric  projection? 

A.
B.
C.
D.
Answer: A
47)   

 In isometric drawings, dimension values are generally written: 

A.
B.
C.
D.
Answer: C
48)   

Which one of the following elements is often  omitted  in isometric drawing unless needed?

A.
B.
C.
D.
Answer: C
49)   

What is the use of isometric scale? 

A.
B.
C.
D.
Answer: C
50)   

An isometric scale is  not required  when:

A.
B.
C.
D.
Answer: B