Mcqs

Casting, Forming & Welding II MCQ

Casting, Forming and Welding II MCQ (Multiple Choice Questions)

Our multiple choice questions and answers (MCQs) on "Casting, Forming and Welding - II" focus on all areas of Casting, Forming and Welding. These topics are chosen from a collection of the most authoritative and best reference books on Casting, Forming, and Welding. One should spend 1 hour daily practicing these MCQs for 2-3 months to learn and assimilate Casting, Forming, and Welding subjects comprehensively. This way of systematic learning will prepare anyone easily for Casting, Forming, and Welding - II exams, contests, online tests, quizzes, MCQ-tests, viva-voce, interviews, and certifications.

 

Who should Practice Casting, Forming, and Welding - II MCQs?

  • Students who are preparing for college tests and exams such as mid-term tests and semester tests on Casting, Forming, and Welding - II.

  • Students who are preparing for Online/Offline Tests/Contests in Casting, Forming, and Welding - II.

  • Students who wish to sharpen their knowledge of Casting, Forming, and Welding subjects.

  • Anyone preparing for an Aptitude Test in Casting, Forming, and Welding.

  • Anyone preparing for interviews (campus/off-campus interviews, walk-in interviews, and company interviews).

  • Anyone preparing for entrance examinations and other competitive examinations.

  • All - Experienced, Freshers and College / School Students.

Latest Popular
Q:

Which of the following material is not used in alloy steels?

A) Molybdenum B) Nickel
C) Chromium D) Sodium
 
Answer & Explanation Answer: D) Sodium

Explanation: In alloy steels, there is a big composition used up by iron. Along with iron, there vitally has to be carbon in alloy steels. Along with carbon, there is a presence of other elements such as, molybdenum, nickel and chromium in small amounts.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

94
Q:

Up to what percent of carbon content in steel, it is not required to preheat it?

A) 0.25% ? 0.3% B) 0.3% ? 0.35%
C) 0.35% ? 0.4% D) 0.4% ? 0.45%
 
Answer & Explanation Answer: A) 0.25% ? 0.3%

Explanation: Low carbon steels are the ones containing low amount of carbon in them, which does not require preheating. The amount of carbon content needed in low carbon steels, is 0.25% to 0.3%, if preheating is to be avoided.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

115
Q:

High alloys steels are preheated up to what temperature?

A) 350?C B) 400?C
C) 450?C D) 500?C
 
Answer & Explanation Answer: B) 400?C

Explanation: High alloy steels are those steels which contain high amount of carbon in them. These alloys need to be preheated before welding in order to avoid cracking. The temperature up to which these alloys are preheated is 400?C.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

101
Q:

Which of the following methods cannot be used for welding carbon steel?

A) Arc welding B) Gas welding
C) Ultrasonic welding D) Forge welding
 
Answer & Explanation Answer: C) Ultrasonic welding

Explanation: For the welding of carbon steel material, one may use the arc welding method. To gas weld carbon steel is also a feasible option and carbon steels can be treated using forge welding also, but it cannot be welded using ultrasonic welding.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

112
Q:

Oxygen cutting process can be applied to metals having a melting point higher than their oxidization temperature.

A) True B) False
 
Answer & Explanation Answer: B) False

Explanation: It can be counted among one of the drawbacks of oxygen cutting process, that the metal which is to be treated must have its oxidizing temperature higher than its melting temperature, otherwise the metal would get melted before getting oxidized.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

87
Q:

Cast irons are best treated using oxygen cutting process.

A) True B) False
 
Answer & Explanation Answer: B) False

Explanation: Cast irons cannot be treated using oxygen cutting process. The reason being that the melting point of cast irons is a lot lower than its ignition temperature. The same cannot be said for high alloy steels.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

88
Q:

What should the outer diameter of a thick-welled lance be, for having good results?

A) 13 mm to 15 mm B) 15 mm to 17 mm
C) 17 mm to 19 mm D) 19 mm to 21 mm
 
Answer & Explanation Answer: C) 17 mm to 19 mm

Explanation: In oxygen lance cutting, when the lance is made up of a thick wall, with its outer diameter of 17 mm to 19 mm, and possessing an inner diameter of 8 mm to 6 mm, respectively, then good results can be obtained.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

74
Q:

What is the initial oxygen pressure provided through the lance?

A) 1 atm to 2 atm B) 2 atm to 3 atm
C) 3 atm to 4 atm D) 4 atm to 5 atm
 
Answer & Explanation Answer: A) 1 atm to 2 atm

Explanation: In oxygen lance cutting, jet of oxygen is passed through steel pipes, and by doing this, holes are produced. For doing this, the jet of oxygen is passed through the lancer under the pressure of 1 atm to 2 atm.

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Category: Mechanical Engineering MCQs
Sub Category: Casting, Forming & Welding II MCQ

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