550+ Machining-and-machine-tool-operations Questions

Machining-and-machine-tool-operations Questions Set 11:

Quiz Mode

Which of the following machining processes gives higher accuracy?

Drilling

Reaming

Counter boring

Boring

Solution:

What is the composition of cutting tool material 1-4-1 HSS?

18% W, 4%Cr, 1%V

18% Cr, 4%W, 1%V

18% W, 4% Ni, 1% V

18% Cr, 4%Ni, 1%V

Solution:

To obtain a surface finish in the range of 0.75 μm to 1.25 μm, what is the recommended manufacturing operation?

Honing

Grinding

Buffing

Lapping

Solution:

A built-up edge is more likely to form when machining

Ductile materials at high speed

Brittle materials at high speed

Brittle materials at low speed

Ductile materials at low speed

Solution:

What are the terms for up milling and down milling?

climb up milling, down milling

conventional milling, climb down milling

end milling, climb milling

climb down milling, face milling

Solution:

For a given machining operation, the cutting speed is 30 m/min, the tool life exponent is 0.3, and the tool life constant is 30. Determine the tool life in minutes.

9 minutes

2 minutes

6 minutes

1 minute

Solution:

In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then the tool life will become

Half

Two times

Eight times

Sixteen times

Solution:

Jigs and Fixtures are essential components in manufacturing processes. They are used for specific operations. There are some cases where both are not used together to save the cost of components. Which of the following operations would prefer using Jigs over Fixtures?

Milling Operation

Drilling Operation

Cutting Operation

Grinding Operation

Solution:

A medium carbon steel workpiece with a diameter of 100 mm and length of 100 mm is turned on a lathe machine. The cutting velocity is 50 m/min, the feed rate is 0.8 mm/rev, and the depth of cut is 1.5 mm. Given that the density of medium carbon steel is 7850 kg/m³, calculate the weight loss of the part (in grams) and the material removal rate (in mm³/min) after one cut.

2.915 g, 472.79 mm³/min

59.10 g, 364 mm³/min

60.0 g, 370 mm³/min

37.0 g, 600 mm³/min

Solution:

Match the items in List-I with the corresponding items in List-II and select the correct answer using the codes given below the lists:

      List-I                                    List-II

A. Quickreturn mechanism                                 1. Lathe

B. Apron mechanism                                2. Milling machine

C. Indexing mechanism               3. Shaper

D. Regulating wheel                  4. Centerless grinding

A-3, B-1, C-2, D-4

A-2, B-3, C-4, D-1

A-3, B-1, C-2, D-4

A-4, B-2, C-3, D-1

Machining-and-machine-tool-operations Questions Set 11:

Which of the following machining processes gives higher accuracy?

Solution:

What is the composition of cutting tool material 1-4-1 HSS?

Solution:

To obtain a surface finish in the range of 0.75 μm to 1.25 μm, what is the recommended manufacturing operation?

Solution:

A built-up edge is more likely to form when machining

Solution:

What are the terms for up milling and down milling?

Solution:

For a given machining operation, the cutting speed is 30 m/min, the tool life exponent is 0.3, and the tool life constant is 30. Determine the tool life in minutes.

Solution:

In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then the tool life will become

Solution:

Jigs and Fixtures are essential components in manufacturing processes. They are used for specific operations. There are some cases where both are not used together to save the cost of components. Which of the following operations would prefer using Jigs over Fixtures?

Solution:

Solution:

Solution:

Related Question Sets:

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Machining-and-machine-tool-operations Questions Set 11:

Which of the following machining processes gives higher accuracy?

Solution:

What is the composition of cutting tool material 1-4-1 HSS?

Solution:

To obtain a surface finish in the range of 0.75 μm to 1.25 μm, what is the recommended manufacturing operation?

Solution:

A built-up edge is more likely to form when machining

Solution:

What are the terms for up milling and down milling?

Solution:

For a given machining operation, the cutting speed is 30 m/min, the tool life exponent is 0.3, and the tool life constant is 30. Determine the tool life in minutes.

Solution:

In a single point turning operation with a cemented carbide and steel combination having a Taylor exponent of 0.25, if the cutting speed is halved, then the tool life will become

Solution:

Jigs and Fixtures are essential components in manufacturing processes. They are used for specific operations. There are some cases where both are not used together to save the cost of components. Which of the following operations would prefer using Jigs over Fixtures?

Solution:

Solution:

Match the items in List-I with the corresponding items in List-II and select the correct answer using the codes given below the lists: List-I List-II A. Quickreturn mechanism 1. Lathe B. Apron mechanism 2. Milling machine C. Indexing mechanism 3. Shaper D. Regulating wheel 4. Centerless grinding

Solution:

Related Question Sets:

Related Topics: