Deck 6: Manufacturing and Welding Processes

Question 1

Which turning aluminium the side rake angle is nearly

A)Parting off
B)5°
C)15°
D)10°
E)0°

Answer 1

15°

Question 2

The moisture content of moulding sand generally varies from

A)40-50 percent
B)2-8 percent
C)10-25 percent
D)50-65 percent
E)25-40 percent

Answer 2

2-8 percent

Question 3

LASER is

A)an electromagnetic radiation
B)a magnetic radiation
C)a light radiation
D)Parting off
E)an atomic radiation

Answer 3

an electromagnetic radiation

Question 4

Which of the following does not represent the number of slip gauges in a metric set?

A)110
B)45
C)88
D)65
E)103

Question 5

In lost wax casting for non-ferrous materials, the material of the mould is

A)Sodium silicate
B)Silica
C)Plaster of Paris
D)Ethyl silicate
E)Parting off

Question 6

Oxygen cylinders are

A)Cast iron cylinders
B)Seamless steel cylinders
C)Die cast
D)Steel cylinders, welded structure
E)Alloy steel cylinders, thermit welded

Question 7

A work piece of 100 mm diameter is to be machined at a cutting speed of 100 metres per minute. The rpm of the work piece should be

A)636
B)318
C)100
D)200
E)159

Question 8

Point angle of drill is usually more while drilling

A)Slate
B)Marble
C)Hard alloys
D)Soft cast iron
E)Mild steel

Question 9

In drilling operation if the drill point is outside the drill axis, the effect on the drilled hole will be

A)The hole will be rough
B)The hole will be smooth
C)The hole will become too large
D)The hole will become elliptical
E)The drilled hole will be normal

Question 10

Black broken lines on a pattern indicates

A)Surface to be left unmachined
B)Surfaces to be machined
C)Seats for loose core prints
D)Core prints
E)Fillets

Question 11

Spherodising is a

A)annealing process
B)surface treatment process
C)Parting off
D)age-hardening process
E)hardening process

Question 12

A tool is said to have worn if

A)it produces discontinuous chips
B)its cutting angles have changed
C)heat produced in cutting is large
D)None of the above
E)Parting off

Question 13

Which of the following is not a 'drawing' process?

A)Spinning
B)Bulging
C)Embossing
D)Tube drawing
E)Lancing

Question 14

To break the continuous chips

A)Use a chip breaker in the tool
B)Cut the metal intermittently
C)Use high cutting speed and low feed
D)None of the above
E)Small fragments

Question 15

Hard, tough, fragile and heat sensitive metals can be processed by

A)Explosive forming
B)Intraform machining
C)Electrical discharge machining
D)Cold heading
E)High energy rate forming

Question 16

In which grinding operation the peripheral speed of the grinding wheel will be highest?

A)Circular grinding
B)Face grinding
C)Internal grinding
D)Surface grinding
E)Part off grinding

Question 17

Which of the following pattern can be used for symmetrical objects only?

A)Gated pattern
B)Split pattern
C)Sweep pattern
D)All of the above
E)Parting off

Question 18

When the capacity of a power press is expressed in 100 tonnes, it implies that

A)Dead weight of the press is 100 tonnes
B)Total production of material will be 100 tonnes in a day
C)The maximum load that the press can apply is 50 tonnes
D)All of the above
E)None of the above

Question 19

Which of the following welding process is preferred for wrought iron?

A)Spot welding
B)Mig welding
C)Forge welding
D)Lesser welding
E)Thermit welding

Question 20

The operation of cutting holes in sheet by a press is known as

A)Punching
B)Shearing
C)Slitting
D)Drilling
E)Trimming

Question 21

The sheet metals which can be cut by a hand shear have a thickness

A)Any value of s.w.g.
B)Upto 5 s.w.g.
C)Parting off
D)Upto 165 s.w.g.

Question 22

Chip breakers are used while machining

A)ductile materials
B)brittle materials
C)Both (A) and (B)
D)None of the above
E)Parting off

Question 23

Usually the range of an instrument is selected such that

A)Minimum reading coincides with average value of working parameter
B)Minimum reading coincides with minimum value of the working parameter
C)For the working parameter the pointer direction is vertical
D)For the working parameter the pointer deflection is about ? of the full scale
E)None of the above

Question 24

The weight of hammers used in a fitting ship is

A)0.25 kg - 0.50 kg
B)Parting off
C)0.45 kg - 0.70 kg
D)0.75 kg - 1 kg

Question 25

Core prints are provided to

A)Form seat to support and hold the core
B)Direct the flow of molten material during pouring
C)Form trade mark of company on castings
D)Reinforce the core to withstand the force of buoyancy of molten metal
E)Produce castings with specific surface design

Question 26

For the measurement of viscosity the transduction method could be

A)Electron tube
B)Magneto-electric
C)Photoelectric
D)Radioactive
E)Capacitive

Question 27

A rammer is

A)A measuring tool
B)A tool used in powder metallurgy for shaping the mixture
C)A tool used in foundry to pack the sand in mould
D)A tool used in press work to lift the pressed components
E)A tool used n welding for cleaning purpose

Question 28

Device used in the fitting shop used for holding round bars during marking/centre drilling thin faces is known as

A)Parting off
B)Bench vice
C)Surface plate
D)V-block

Question 29

Filler metal is essentially used in which of the following welding process?

A)Spot welding
B)Seam welding
C)Projection welding
D)Gas welding
E)All of the above

Question 30

Which of the following is not a part of gating system?

A)Vents
B)Pouring basin
C)Sprue
D)Gates and riser
E)Parting off

Question 31

When small castings are to be produced in large numbers, the type of pattern generally used is

A)Split pattern
B)Loose piece pattern
C)Sweep pattern
D)Match-plate pattern
E)Solid pattern

Question 32

Hardness of work surface affects honing by

A)varying the rate of stock removal
B)poor surface finish
C)coolant consumption
D)All of the above
E)Parting off

Question 33

The tool used for marking the location of bend line on thick metal/marking centres of holes is termed as

A)Hollow punch
B)Centre punch
C)Prick punch
D)Parting off

Question 34

Warping may be avoided when quenching a long slender piece of work by

A)Holding the piece between clamps
B)Holding the piece vertically over the quenching both and plunging it straight down
C)Holding the piece on horizontally adequate supports
D)Pulling the piece from both ends
E)None of the above

Question 35

What multiple of basic unit is 'atto'?

A)10^-18
B)10^-15
C)10^-12
D)10^-20
E)10^-9

Question 36

A vent wire is

A)is used in cold heading
B)A kind of wire used in hot forging
C)A sharp pointed wire used in foundry for punching holes through the rammed sand
D)A wire for providing airflow
E)None of the above

Question 37

Which one of the following is not a vector quantity?

A)Acceleration
B)Impulse
C)Time
D)Force
E)Momentum

Question 38

In which of the following welding process, flux is used in the form of granules?

A)Submerged arc welding
B)Gas arc welding
C)DC arc welding
D)Argon arc welding
E)All of the above

Question 39

A set hammer is made of

A)Mild steel
B)Parting off
C)High carbon steel
D)Tool steel and hardened

Question 40

Material used for resistances is generally

A)Nichrome
B)Duralumin
C)Constantan
D)Monel metal
E)Elinvar

Question 41

A kentometer is

A)A manometric device used for measurement of vacumms
B)A simple device used for measurements of kinetic energy
C)A device used for measurement of kinetic energy
D)A device used for the measurement of temperature
E)A device used for the measurement of mass

Question 42

Ezy out is

A)A tool for making round objects
B)A taper reamer
C)An instrument for measurement of out of roundness of objects
D)A tool for removing broken bolts and studs from a hole
E)A drill having two diameters

Question 43

Swab is

A)A welding defect
B)A forging die
C)A rocess of manufacturing grinding wheels
D)A tool used in foundry
E)A gear cutter

Question 44

The function of a coolant in a metal cutting operation is

A)To cool the job
B)To cool the tool
C)To reduce the friction at cutting point
D)To obtain bright shining surface on the job
E)None of the above

Question 45

In deriving relationship between thickness ratio, angle of shear plane and tool rake angle, which assumption is not required in orthogonal cutting

A)tool cuts at constant speed
B)the edge of the cutting tool is larger than width of the chip
C)the width of chip is larger than its thickness
D)None of the above
E)Parting off

Question 46

The impedance of piezo-electric crystals is

A)High
B)Negligible
C)Low
D)Very low
E)Average

Question 47

Machining allowance in case of die casting is

A)Same as in other methods of casting
B)Generally not provided
C)Small
D)Very small
E)Large

Question 48

Which of the following process has least power consumption in kW/cm²/min?

A)Electro discharge machining
B)Laser beam machining
C)Plasma arc machining
D)Ultrasonic machining
E)Abrasive jet machine

Question 49

Extrusion is the process of

A)Metal shaping on presses
B)Pushing the heated billet of metal through the orifice
C)Producing holes by arc
D)Welding two dissimilar metals
E)Marking cup shaped articles using the force of explosion

Question 50

In electrical resistance welding cleaning of metals to be welded

A)Is immaterial
B)Is important
C)Can be neglected
D)Does not have any effect on the welding
E)None of the above