Mechanical Engineering MCQ with Answers
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A double wall single image technique is generally used on pipes
A double wall single image technique is generally used on pipes
Open 98What is the significance of OCV in MMA welding using a transformer?
What is the significance of OCV in MMA welding using a transformer?
Open 99Ductile brittle transformation temperature of a welded specimen is affected by
Ductile brittle transformation temperature of a welded specimen is affected by
Open 100The melting rate of the wire in the GMAW/FCAW process depends on
The melting rate of the wire in the GMAW/FCAW process depends on
Open 101In TIG (pulsed) welding which parameters can be adjusted?
In TIG (pulsed) welding which parameters can be adjusted?
Open 102Which of the following is true?
Which of the following is true?
Open 103Which statement from below is not true concerning weld decay?
Which statement from below is not true concerning weld decay?
Open 104One of the duties of the visual/welding inspector is to carry out materials inspection. Looking at the below where/when may the inspector be required to carry out materials inspect
One of the duties of the visual/welding inspector is to carry out materials inspection. Looking at the below where/when may the inspector be requ...
Open 105Productivity in the GTAW process can be increased by
Productivity in the GTAW process can be increased by
Open 106The welding technique in which the electrode points to the opposite direction of the welding is called
The welding technique in which the electrode points to the opposite direction of the welding is called
Open 107The width to depth ratio of the weld bead generally naturally higher in which of the following welding processes?
The width to depth ratio of the weld bead generally naturally higher in which of the following welding processes?
Open 108Which grain structure from below is most susceptible to hydrogen cracking?
Which grain structure from below is most susceptible to hydrogen cracking?
Open 109Submerged arc welding is noted for its ability to employ high welding currents owing to the properties as functions of flux. Generally, what polarity is used up to about 1000A?
Submerged arc welding is noted for its ability to employ high welding currents owing to the properties as functions of flux. Generally, what pola...
Open 110With respect to preheat and interpass temperature, which of the following is true?
With respect to preheat and interpass temperature, which of the following is true?
Open 111Before welding components, the welders' qualifications need to be checked. Does a tack welder also need to do a performance qualification test?
Before welding components, the welders' qualifications need to be checked. Does a tack welder also need to do a performance qualification test?
Open 112Before welding and during welding in the cleaning stage, which statements from below would you consider are correct?
Before welding and during welding in the cleaning stage, which statements from below would you consider are correct?
Open 113Before welding components, the welders' qualifications need to be checked. Do those welders that are going to weld temporary handling attachments also need to have taken performanc
Before welding components, the welders' qualifications need to be checked. Do those welders that are going to weld temporary handling attachments...
Open 114On inspecting a completed 150mm OD pipe weld, some small smooth, shallow areas of undercut have been found <0.25mm deep. The welder says he can quickly put this right by depositing
On inspecting a completed 150mm OD pipe weld, some small smooth, shallow areas of undercut have been found <0.25mm deep. The welder says he can q...
Open 115Who or what determines the necessity of a post weld heat treatment?
Who or what determines the necessity of a post weld heat treatment?
Open 116Usually liquid penetrant testing is applicable at a temperature range of approximately
Usually liquid penetrant testing is applicable at a temperature range of approximately
Open 117Which test from below measures the material property known as fracture toughness?
Which test from below measures the material property known as fracture toughness?
Open 118In mechanical testing, the term necking is used when
In mechanical testing, the term necking is used when
Open 119In which material from below will hydrogen cracking not happen?
In which material from below will hydrogen cracking not happen?
Open 120A welder's qualification begins from the date of welding of the test piece. The European standard allows a qualification certificate to remain valid for a period of two years, prov
A welder's qualification begins from the date of welding of the test piece. The European standard allows a qualification certificate to remain va...
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