BOILER OPERATION- PAGE 2
1:-Setting of the saw
A:-make the free movement of the blade
B:-prevents the saw blade binding when penetrating into the materials
C:-the cut is to be broader than the thickness of the saw blade
D:-all of the above
Ans: D
2:-Universal surface gauges are used for
A:-spindle can be set of any position
B:-fine adjustments can be made quickly
C:-can be used on cylindrical surfaces
D:-all of the above
Ans: D
3:-Centre head of a combination set is used for
A:-90° angle
B:-90° and 45° angles
C:-locating the centre of a cylindrical job
D:-parallelism
Ans: C
4:-Flutes or spiral grooves are used in drill are
A:-to form the cutting edge
B:-the coolant to flow to the cutting edge
C:-both A and B
D:-none of the above
Ans: C
5:- _____________ is the distance a drill advances in to the work in one complete rotation.
A:-feed
B:-speed
C:-cutting speed
D:-cutting metals
Ans: A
6:-_________ are to use the check the internal and external radius of work piece.
A:-feeler gauge
B:-radius gauge
C:-drill gauge
D:-all of the above
Ans: B
7:-What is the use of the cutting fluids or coolants ?
A:-carry away the heat generated during cutting operation
B:-flush away the chips from the cutting point
C:-produced good quality finish
D:-all of the above
Ans: D
8:-Chisels are made of
A:-mild steel
B:-high carbon steel
C:-medium carbon steel
D:-alloy steel
Ans: B
9:-least count of a micrometer is
A:-0.01 mm
B:-0.001 mm
C:-0.02 mm
D:-0.002 mm
Ans: A
10:- __________ is a precision instrument meant for measuring angle precisely to an accuracy of 5 minutes.
A:-vernier bevel protractor
B:-micrometer
C:-vernier caliper
D:-bevel protractor
Ans: A
11:-____________is an operation of beveling the end of the drilled hole.
A:-countersinking
B:-counterboring
C:-spot facing
D:-reaming
Ans: A
12:-ISO metric thread is designated as M12 × 1.25. What is 1.25 ?
A:-diameter of the thread
B:-length of the thread
C:-pitch of the thread
D:-thickness of the bolt head
Ans: C
13:- _____________is the difference between the maximum limit of size and minimum limit of height.
A:-deviation
B:-upper deviation
C:-lower deviation
D:-tolerance
Ans: D
14:-Least count of a vernier micrometer is
A:-5 minutes
B:-0.02 mm
C:-0.001 mm
D:-0.01 mm
Ans: C
15:-Cast iron is manufactured from
A:-blast furnace
B:-cupola furnace
C:-puddling furnace
D:-electric process
Ans: B
16:-Zinc coated iron is called
A:-tin
B:-brass
C:-bronze
D:-galvanized iron
Ans: D
17:- ___________ flame is used to weld most of the common metals, in oxyacetylene gas welding.
A:-neutral flame
B:-oxidising flame
C:-carburising flame
D:-none of the above
Ans: A
18:-Which metals have highest melting point ?
A:-heigh speed steel
B:-diamond
C:-wrought iron
D:-tungsten
Ans: D
A:-make the free movement of the blade
B:-prevents the saw blade binding when penetrating into the materials
C:-the cut is to be broader than the thickness of the saw blade
D:-all of the above
Ans: D
2:-Universal surface gauges are used for
A:-spindle can be set of any position
B:-fine adjustments can be made quickly
C:-can be used on cylindrical surfaces
D:-all of the above
Ans: D
3:-Centre head of a combination set is used for
A:-90° angle
B:-90° and 45° angles
C:-locating the centre of a cylindrical job
D:-parallelism
Ans: C
4:-Flutes or spiral grooves are used in drill are
A:-to form the cutting edge
B:-the coolant to flow to the cutting edge
C:-both A and B
D:-none of the above
Ans: C
5:- _____________ is the distance a drill advances in to the work in one complete rotation.
A:-feed
B:-speed
C:-cutting speed
D:-cutting metals
Ans: A
6:-_________ are to use the check the internal and external radius of work piece.
A:-feeler gauge
B:-radius gauge
C:-drill gauge
D:-all of the above
Ans: B
7:-What is the use of the cutting fluids or coolants ?
A:-carry away the heat generated during cutting operation
B:-flush away the chips from the cutting point
C:-produced good quality finish
D:-all of the above
Ans: D
8:-Chisels are made of
A:-mild steel
B:-high carbon steel
C:-medium carbon steel
D:-alloy steel
Ans: B
9:-least count of a micrometer is
A:-0.01 mm
B:-0.001 mm
C:-0.02 mm
D:-0.002 mm
Ans: A
10:- __________ is a precision instrument meant for measuring angle precisely to an accuracy of 5 minutes.
A:-vernier bevel protractor
B:-micrometer
C:-vernier caliper
D:-bevel protractor
Ans: A
11:-____________is an operation of beveling the end of the drilled hole.
A:-countersinking
B:-counterboring
C:-spot facing
D:-reaming
Ans: A
12:-ISO metric thread is designated as M12 × 1.25. What is 1.25 ?
A:-diameter of the thread
B:-length of the thread
C:-pitch of the thread
D:-thickness of the bolt head
Ans: C
13:- _____________is the difference between the maximum limit of size and minimum limit of height.
A:-deviation
B:-upper deviation
C:-lower deviation
D:-tolerance
Ans: D
14:-Least count of a vernier micrometer is
A:-5 minutes
B:-0.02 mm
C:-0.001 mm
D:-0.01 mm
Ans: C
15:-Cast iron is manufactured from
A:-blast furnace
B:-cupola furnace
C:-puddling furnace
D:-electric process
Ans: B
16:-Zinc coated iron is called
A:-tin
B:-brass
C:-bronze
D:-galvanized iron
Ans: D
17:- ___________ flame is used to weld most of the common metals, in oxyacetylene gas welding.
A:-neutral flame
B:-oxidising flame
C:-carburising flame
D:-none of the above
Ans: A
18:-Which metals have highest melting point ?
A:-heigh speed steel
B:-diamond
C:-wrought iron
D:-tungsten
Ans: D