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51.

Load measuring device shall be capable of measuring loads to an accuracy of ___________(a) 1N(b) 10N(c) 1KN(d) 10KNI had been asked this question at a job interview.My question comes from Flexural Strength of Concrete in division Testing of Concrete of Concrete Technology

Answer»

The CORRECT answer is (b) 10N

The explanation: LOAD measuring device shall be CAPABLE of measuring LOADS to an ACCURACY of 10N.

52.

The shape of specimen used in compression test is Cube and cylinder.(a) True(b) FalseThis question was posed to me at a job interview.Enquiry is from Compression Test topic in section Testing of Concrete of Concrete Technology

Answer»
53.

In charpy test specimen, the angle of v-notch section is ____________(a) 30 degrees(b) 45 degrees(c) 60 degrees(d) 90 degreesI have been asked this question by my school teacher while I was bunking the class.This interesting question is from Compression Test in division Testing of Concrete of Concrete Technology

Answer» CORRECT option is (b) 45 DEGREES

Easiest explanation: In CHARPY test SPECIMEN, the angle of v-notch SECTION is 45 degrees and 0.25mm radius along the base.
54.

Which test can be performed without skilled labour?(a) Probe test(b) Bend liquid test(c) Dye penetrant test(d) Torsion testThe question was posed to me in a job interview.The query is from Destructive and Non-Destructive Tests topic in section Testing of Concrete of Concrete Technology

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55.

The tolerances on the cross-section of the test specimens shall be within ± ____________(a) 1%(b) 2%(c) 3%(d) 5%The question was asked during an interview.My question comes from Flexural Strength of Concrete topic in portion Testing of Concrete of Concrete Technology

Answer»

The correct CHOICE is (B) 2%

For explanation: The TOLERANCES on the cross-section of the test SPECIMENS shall be WITHIN ± 2%.

56.

The process of removing the irregularities from the surface of concrete left after screeding is called floating.(a) True(b) FalseI got this question during an interview.I need to ask this question from Curing of Hardened Concrete topic in division Testing of Concrete of Concrete Technology

Answer»

The correct choice is (a) True

Explanation: The process of REMOVING the irregularities from the SURFACE of CONCRETE left after screeding is called floating.