The melting point of tungsten is around

October 18, 2021 by admin

Question:

The melting point of tungsten is around

2800?C

1256?C

3400?C

1156?C

Answer» c. 3400?C

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

The reliability of an instrument means

October 18, 2021 by admin

Question:

The reliability of an instrument means

The maximum useful life of an instrument

The service of an instrument between two repairs

The range in which the characteristics of an instrument remain linear

The degree to which repeatability continues to remain within specified limits

Answer» d. The degree to which repeatability continues to remain within specified limits

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

The depth hardness of steel increases by the addition of

October 17, 2021 by admin

Question:

The depth hardness of steel increases by the addition of

Silicon

Nickel

Manganese

Sulphur

Answer» e. Chromium

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

Micro-structure of a material is generally examined by

October 17, 2021 by admin

Question:

Micro-structure of a material is generally examined by

Spectroscope techniques

Optical microscope

X-rays and electron diffraction

Naked eye

Answer» e. Microscope

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

Surface plates made of granite posses property

October 17, 2021 by admin

Question:

Surface plates made of granite posses property

are free from residual stresses

there is less tendency for granite to creep

granite does not corrode

All of the above

Answer» d. All of the above

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

Hot tear

October 17, 2021 by admin

Question:

Hot tear

Is a defect in castings

Is a process involving heating

Is a defect in wood

Is a phenomenon occurring in materials ixposed to weather e.g. sun and rain

Answer» a. Is a defect in castings

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

Endentor used in Vickers hardness testing machine is

October 16, 2021 by admin

Question:

Endentor used in Vickers hardness testing machine is

Diamond square-based pyramid

10 mm dia ball

15 mm dia ball

25 mm dia ball

Answer» a. Diamond square-based pyramid

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

Cold work is done on the metal

October 16, 2021 by admin

Question:

Cold work is done on the metal

Below the thermal critical range

Above the thermal critical range

At zero degree centigrade temperature

After slightly warning the metal in furnace

Answer» a. Below the thermal critical range

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

A thermistor is basically an instrument for the measurement of

October 15, 2021 by admin

Question:

A thermistor is basically an instrument for the measurement of

pressure

flow

speed

temperature

Answer» d. temperature

Note:

The above multiple-choice question is for all general and Competitive Exams in India.

In the above problem the thermal time constant will be

October 15, 2021 by admin

Question:

In the above problem the thermal time constant will be

2.55 hrs

2.05 hrs

1 hour

1.44 hrs

Answer» d. 1.44 hrs

Note:

The above multiple-choice question is for all general and Competitive Exams in India.