Machine Drawing Questions and Answers Part-3

1. A component is given the dimension as shown below. The type of tolerance is _________
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a) Symmetrical
b) Unilateral
c) Unequal bilateral
d) Equal bilateral

Answer: c
Explanation: Since there is given with the deviation on two sides this means this is bilateral and as these deviations are not equal that tells us that the type of tolerance is unequal bilateral.

2. For the below given figure, the dimension of A will be __________
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a) 40.20
b) 40.60
c) 40.00
d) 39.7

Answer: c
Explanation: Since the given maximum and minimum tolerance are to be taken in consideration
Minimum dimension of A=120 – (40+.2) – (40+0) = 39.8
Maximum dimension of A= (120+.6) – (40 – .2) – (40 – .3) = 40.1
So only 40.00 lie in between 39.8 and 40.1.

3. What is the minimum dimension of the given shaft up to which it can be machined?
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a) 35.79
b) 35.49
c) 35.99
d) 35.29

Answer: b
Explanation: Since the size of a component can lie from the maximum limit to the minimum limit.
Here, Minimum size = Basic size -lower tolerance
= 35.79 – 0.3 = 35.49

4. What is the type of the tolerance provided here and dimension of the given object in the figure below?
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a) Equal bilateral and maximum size of 50.05
b) Equal bilateral and minimum size of 50.05
c) Equal bilateral and minimum size of 49.95, maximum size of 50.05
d) Equal unilateral and minimum size of 49.05, maximum size of 50.05

Answer: c
Explanation: Since the given dimension is with deviation on both side equal to the 0.05 and have the basic size of 50 thus the minimum size is 50 -.05 = 49.95 and maximum size is 50+0.05 = 50.05 and the type of the tolerance given here is equal bilateral.

5. The type of the dimension of the given object in the below figure is __________
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a) Basic size equal to 50.00 and tolerance +.05 and -.05
b) Limits where maximum limit is 50.05 and minimum limit is 49.05
c) Basic size with the tolerance
d) Dimension of rectangle having 50.05 and 49.98

Answer: b
Explanation: The given dimension are the limits written one above another where upper limit is written above the lower limit, here maximum dimension is 50.05 and minimum dimension is 49.98. If we were to calculate size assuming basic size equal to 50 then tolerance are equal to 50.05 – 50 = +0.05 and 49.98 – 50 = – 0.02.

6. _________ is a drawing giving details about size tolerance, heat treatment, etc.
a) Exploded drawin
b) Production drawing
c) Assembly drawing
d) Machine drawing

Answer: b
Explanation: Production drawings also machine drawings. In addition to dimensions, they furnish tolerance, geometric tolerance, surface finish, heat treatment, etc. Production drawing mostly uses orthographic method of representation

7._________ is an authorized document to produce a part in the workshop
a) Assembly drawing
b) Exploded drawing
c) Part drawing
d) Production drawing

Answer: d
Explanation: Production drawing gives all the design information required for the production process. It is provided by the design department to the production department as an authorized document to produce a part in the workshop. It gives information about allowances, surface finish, heat treatment, etc.

8. Drawing showing the position of each part with respect to each other is called ______
a) assembly drawing
b) part drawing
c) machine drawing
d) installation drawing

Answer: a
Explanation: Machine consists of many different parts. Assembly drawing is the drawing showing the position of each part with respect to each other. It can also be defined as a drawing showing all the parts in the combined state. It is prepared with the help of part drawings.

9. Exploded drawing is the drawing which gives the ____________ of each component of an assembly and they arranged in the same sequence in which they are assembled.
a) clear view
b) sectional view
c) pictorial view
d) front view

Answer: c
Explanation: Exploded drawing is the drawing which gives the pictorial view of each part of an assembly. They are arranged in the sequence in which they are assembled. Sometimes, it is difficult to read and interpret the working drawing correctly for a person in industry. Explodes drawing is useful in clearly visualizing different parts of assembly

10. Detailed drawing of each part of a machine is called ____
a) part drawing
b) assembly drawing
c) patent drawing
d) tabular drawing

Answer: a
Explanation: A part drawing is a detailed drawing of each part of a machine. It is a production drawing of each part of a machine. Detailed drawing provides information about dimensions and allowances for the manufacture of the parts.