Alloy Steel And Cutting Tool Materials - MCQ Test 1


20 Questions MCQ Test RRB JE for Mechanical Engineering | Alloy Steel And Cutting Tool Materials - MCQ Test 1


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This mock test of Alloy Steel And Cutting Tool Materials - MCQ Test 1 for Mechanical Engineering helps you for every Mechanical Engineering entrance exam. This contains 20 Multiple Choice Questions for Mechanical Engineering Alloy Steel And Cutting Tool Materials - MCQ Test 1 (mcq) to study with solutions a complete question bank. The solved questions answers in this Alloy Steel And Cutting Tool Materials - MCQ Test 1 quiz give you a good mix of easy questions and tough questions. Mechanical Engineering students definitely take this Alloy Steel And Cutting Tool Materials - MCQ Test 1 exercise for a better result in the exam. You can find other Alloy Steel And Cutting Tool Materials - MCQ Test 1 extra questions, long questions & short questions for Mechanical Engineering on EduRev as well by searching above.
QUESTION: 1

Cutting tool material 18-4-1 HSS has which one of the following compositions?   

Solution:

Ans. (a)

QUESTION: 2

Alloy steel which is work hardenable and which is used to make the blades ofbulldozers, bucket wheel excavators and other earth moving equipment containiron, carbon and

Solution:

Ans. (c) Manganese increases toughness and ductility.

QUESTION: 3

Match List I (Name of alloy) with List II (Major alloying elements) and select the correct answer using the codes given below the Lists:  
List I                                                            List II
A. Invar                                          1. Manganese
B. Hadfield steel                            2. Chromium
C. Stellite                                       3. Nickel
D. Stainless steel                           4. Tungsten
                                                      5. Molybdenum
Codes: A B C D                            A B C D
        (a) 5 1 4 2                        (b) 3 2 5 1
        (c) 5 2 4 1                        (d) 3 1 5 2

Solution:

Ans. (d) Invar 64% Fe + 36% Ni
Hadfield steel 12 – 14 % Manganese increases toughness and ductility.

QUESTION: 4

The limit to the maximum hardness of a work material which can be machined with HSS tools even at low speeds is set by which one of the following tool failure mechanisms? 

Solution:

Ans. (a)

QUESTION: 5

The compositions of some of the alloy steels are as under: 
1. 18 W 4 Cr 1 V
2. 12 Mo 1 W 4 Cr 1 V
3. 6 Mo 6 W 4 Cr 1 V
4. 18 W 8 Cr 1 V
The compositions of commonly used high speed steels would include

Solution:

Ans. (d)

QUESTION: 6

Match List-I (Alloying element in steel) with List-II (Property conferred on steel by the element) and select the correct answer using the codes given below the lists:
List-I                                                  List-II
A. Nickel                                    1. Corrosion resistance
B. Chromium                              2. Magnetic permeability
C. Tungsten                                3. Heat resistance
D. Silicon                                    4. Hardenability
Codes: A B C D                        A B C D
        (a) 4 1 3 2                    (b) 4 1 2 3
        (c) 1 4 3 2                    (d) 1 4 2 3

Solution:

Ans. (a)

QUESTION: 7

Assertion (A): Austenitic stainless steel contains 18% chromium and 8% nickel. Since itretains its austenitic structure at room temperature, it is called austenitic stainless steel. Reason (R): Chromium present in the steel improves its corrosion resistance by forming athin film of chromium oxide on the surface.  

Solution:

Ans. (a)

QUESTION: 8

Match List-I (Alloys) with List-II (Applications) and select the correct answer using the codes given below the lists: 
List-I                                              List-II
A. Chromel                          1. Journal bearing
B. Babbit alloy                     2. Milling cutter
C. Nimonic alloy                  3. Thermocouple wire
D. High speed steel             4. Gas turbine blades
Code: A B C D                A B C D
     (a) 3 1 4 2             (b) 3 4 1 2
     (c) 2 4 1 3             (d) 2 1 4 3

Solution:

Ans. (a)

QUESTION: 9

Assertion (A): The characteristic feature of High speed Steel is its red hardness.Reason (R): Chromium and cobalt in High Speed promote martensite formationwhen the tool is cold worked.  

Solution:

Ans. (b)

QUESTION: 10

Which of the following processes can be used for production thin, hard, heatresistant coating at TiN, on HSS? 
1. Physical vapour deposition.
2. Sintering under reducing atmosphere.
3. Chemical vapour deposition with post treatment
4. Plasma spraying.
Select the correct answer using the codes given below:
Codes:

Solution:

Ans. (a)

QUESTION: 11

Match List-I with List-II and select the correct answer using the codes given below the lists: 
List-I                                                   List-II
(Material)                                       (Structure)
A. Charcoal                                  1. F.C.C
B. Graphite                                   2. H.C.P
C. Chromium                                3. Amorphous
D. Copper                                     4. B.C.C
Code: A B C D                    A B C D
      (a) 3 2 1 4                 (b) 3 2 4 1
      (c) 2 3 4 1                 (d) 2 3 1 4

Solution:

Ans. (b)

QUESTION: 12

Monel metal is an alloy of 

Solution:

Ans. (d) Monel metal is an allow of Ni - 63-67% , Cu - 30% (rest)

QUESTION: 13

Which one of the following is the hardest cutting tool material next only to diamond? 

Solution:

Ans. (d)

QUESTION: 14

Which of the following given the correct order of increasing hot hardness of cutting tool material? 

Solution:

Ans. (d)

QUESTION: 15

Coefficient of Expansion is practically nil in a particular alloy. What is this alloy?

Solution:

Ans. (b) A nickel steel alloy containing 36% of nickel is known as invar. It has nearly zero coefficient of expansion. So it is in great demand for measuring instruments and standards of lengths for everyday use. (Invar - 64% Fe, 36% Ni)

QUESTION: 16

Addition of vanadium to steel results in improvement of  

Solution:

Ans. (b)

QUESTION: 17

Cubic boron nitride 

Solution:

Ans. (a) Hardness of CBN is comparable to diamond

QUESTION: 18

Which one of the following is not a synthetic abrasive material?  

Solution:

Ans. (b)
Aluminiumoxide(Al2O3 )This is one of the natural abrasives found, and is also called
corundum and emery. However, the natural abrasives generally have impurities and, as a result, their performance is inconsistent. Hence the abrasive used in grinding wheels is generally manufactured from the aluminium ore, bauxite, Silicon carbide (SiC) Silicon carbide is made from silica sand and coke with small amounts of common salt.

QUESTION: 19

Which of the following pairs are correctly matched? 
1. Silicon steels ………Transformer stampings
2. Duralumin ……Cooking utensils.
3. Gun metal................. Bearings
Select the correct answer using the codes given below.Codes:

Solution:

Ans. (c)

QUESTION: 20

Disruptive strength is the maximum strength of a metal, when 

Solution:

Ans. (a)