49) The lower critical point (heating) for steel is at

Answer is:

723 degree celsius

Explanation:

The lower critical temperature is same for all steels
Lower critical temperature for steel’s austenite-to-pearlite transformation is 1333 ºF (723 ºCelsius). Below this temperature, austentite doesn’t exist.

ISRO Technician-B Fitter Question Paper - 2017 (Set - 1) with Answer Key

For more MCQ's Click Here

50) In forging a drift is used for

Answer is:

Enlarging a punched hole

51) If cos A = 4/5, then the value of tan A is

Answer is:

3/4

52) What % of 72 is 18?

Answer is:

25

53) Which of the following is used for scribing large diameter circles or arcs?

Answer is:

Beam compass

ISRO Technician-B Fitter Question Paper - 2017 (Set - 1) with Answer Key

For more MCQ's Click Here

49) The lower critical point (heating) for steel is at

723 degree celsius

ISRO Technician-B Fitter Question Paper - 2017 (Set - 1) with Answer Key

Related ISRO Technician-B Fitter Question Paper - 2017 (Set - 1) with Answer Key

50) In forging a drift is used for

Enlarging a punched hole

51) If cos A = 4/5, then the value of tan A is

3/4

52) What % of 72 is 18?

25

53) Which of the following is used for scribing large diameter circles or arcs?

Beam compass

ISRO Technician-B Fitter Question Paper - 2017 (Set - 1) with Answer Key