Mechanical Engineering MCQ with Answers
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A homogeneous welded joint is a
A homogeneous welded joint is a
Open 98The similarities between BS EN 22553 and AWS 2.4 in depicting welding symbols are
The similarities between BS EN 22553 and AWS 2.4 in depicting welding symbols are
Open 99The welding superintendent before welding has asked for UT examination (Longitudinal wave) on a pipe 100mm each side of the intended weld, what is the most reason for this?
The welding superintendent before welding has asked for UT examination (Longitudinal wave) on a pipe 100mm each side of the intended weld, what i...
Open 100With 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 101Which test from below measures the material property known as fracture toughness?
Which test from below measures the material property known as fracture toughness?
Open 102Usually liquid penetrant testing is applicable at a temperature range of approximately
Usually liquid penetrant testing is applicable at a temperature range of approximately
Open 103After welding is completed, the inspector would assess which of the following
After welding is completed, the inspector would assess which of the following
Open 104Who or what determines the necessity of a post weld heat treatment?
Who or what determines the necessity of a post weld heat treatment?
Open 105On 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 106Before 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 107Before 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 108Of the following heat treatments, which will be the most effective in reducing the chances of HIC
Of the following heat treatments, which will be the most effective in reducing the chances of HIC
Open 109Before 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 110What is a hot pass?
What is a hot pass?
Open 111During welding you observe that the welder is weaving excessively. Which mechanical property is most likely to deteriorate because of this?
During welding you observe that the welder is weaving excessively. Which mechanical property is most likely to deteriorate because of this?
Open 112What is a duty cycle?
What is a duty cycle?
Open 113Generally in brazing the melting point of the filler metal is above ----- but always below the melting temperature of the parent material
Generally in brazing the melting point of the filler metal is above ----- but always below the melting temperature of the parent material
Open 114To prevent excess weld metal in SMAW/SAW the polarity used should be
To prevent excess weld metal in SMAW/SAW the polarity used should be
Open 115Which statement from below is not true concerning fracture test?
Which statement from below is not true concerning fracture test?
Open 116In the MMA process, the effect of polarity on welding may be described as
In the MMA process, the effect of polarity on welding may be described as
Open 117By which of the following welding processes can autogenous welding not be achieved?
By which of the following welding processes can autogenous welding not be achieved?
Open 118HIC is usually delayed because
HIC is usually delayed because
Open 119GTAW water-cooled torches should be used when the amperage exceeds
GTAW water-cooled torches should be used when the amperage exceeds
Open 120The test method for assessing resistance to brittle fracture, by measuring the energy to initiate and propagate a crack from a sharp notch in a standard-sized specimen is called
The test method for assessing resistance to brittle fracture, by measuring the energy to initiate and propagate a crack from a sharp notch in a s...
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