1. The instrument used to measure the elevated temperature is called:
(A) Thermometer
(B) Pyrometer
(C) Voltmeter
(D) Tachometer
2. The device used for the study of micro-structure of metals is called:
(A) Telescope
(B) Metallurgical microscope
(C) Stethoscope
(D) Biological microscope
3. Annealing is one of the:
(A) Manufacturing processes
(B) Machining processes
(C) Heat treatment processes
(D) Finishing processes
4. Eye piece of microscope shows the image prepared by objective:
(A) Equal
(B) Small
(C) Large
(D) Micro
5. Prevent the leakage of heat from the furnace:
(A) Insulation layer
(B) Fire bricks lining
(C) Prevent the leakage
(D) Inner wall