101) The process of heating and coaling for changing the structure of steel of obtaining the required properties is called
A) HEAT TREATMENT
102) center drilling is an operation of
A) DRILLING AND COUNTERSINKING
103) a drilling machine used by a carpenter for cabinet making is...
A) BREAST DRILLING MACHINE
104) how will you identify a no-go-ring gauge?
A) AN ANNULAR GROOVE CUT ON THE KNURLED SURFACE OF NO-GO GAUGE
105) 'V' blocks available in grades of...
A) A&B
106) the deference between the maximum limit of size and the minimum limit of size is called...
A) TOLERANCE
107) name of the tools used for forming a hole in forging
A) PUNCH
108) name of the furnace used for refining pig iron to produce cast iron
A) CUPOLA FURNACE
109) a chemical compound of carbon with iron is called
A) CEMENTITE
110) what is the purpose of adding barium carbonate in carburising process?
A) TO SPEED UP THE PROCESS CARBURISING
111) what will happen to copper if it is heated an rapidly cooled? will it become hard or soft?
A) SOFT
112) what should be the range of carbon content for steels used for flame hardening?
A) 0.35 PERCENT TO 0.7 PERCENT
113) which one of the fallowing is thermoplastics
A) ACRYLIC RESIN
114) what will be the cooling rate of annealing carbon steel per hour
A) 100-150 DEGREE CELSIUS
115) the slots on the angle plate are given for
A) ACCOMMODATING BOLTS
116) surface plates are used for marking, because...
A) THEY PROVIDE THE DATUM SURFACE
117) the principle of working of a day test indicator is
A) THE LINEAR MOTION IS CONVERTED INTO A ROTARY
118) the purpose of relief grooves is to..
A) ENSURE CONTACT BETWEEN SURFACES WITHOUT ANY OBSTRUCTION
119) in a remote places (no electricity available ) a rail track is to be drilled which drilling machine
A) RATCHET DRILLING MACHINE
120) name of the system of limits and fits followed in our country
A) BIS SYSTEM OF LIMITS AND FITS
FITTER BITS DAY (07) ( TOMORROW )
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