550+ Machining-and-machine-tool-operations Questions

Machining-and-machine-tool-operations Questions Set 28:

Quiz Mode

What property of a material determines how easily it can be machined?

Ductility

Machinability

Machinizing

Machined

Solution:

What type of mechanism is used in a shaper machine?

Quick return mechanism

Indexing mechanism

Four-bar chain mechanism

None of these

Solution:

Which of the following is suitable if a smooth work surface finish is important?

High machining voltage

Larger gap

High current

High concentration

Solution:

During bending, which phenomenon must be taken into consideration to reduce the deformation of the stock?

Wiping

Spring back

Over heating

Roll back

Solution:

When two non-intersecting and non-coplanar shafts are connected by gears, what is the arrangement known as?

bevel gearing

spiral gearing

spur gearing

helical gearing

Solution:

How can the capacity of a lathe be expressed?

Tool post size and lathe travel

Swing and distance between centres

Horsepower and chuck diameter

Bed length and spindle speed

Solution:

When screw threads are to be used in a situation where power is being transmitted in one direction only, which type of screw threads is suitable for this?

Square threads

Knuckle threads

Buttress threads

Acme threads

Solution:

In the case of a 'U' channel/section, the length of travel of the edge of the strip (effective length of the strip), 's', travelling in a helical pattern having an initial length 'l', is given by:

s^2 = l^2 + c^2

s^2 = l^2 - c^2

c^2 = l^2 + s^2

s = √(l^2 + c^2)

Solution:

A grinding operation requires 10 kW of power to be carried by the motor. The material removal rate is given as 23.65 mm³/sec and the grinding ratio is given as 12. Find the wear rate (in mm³/sec) of the grinding grains of the grinding wheel.

1.97 mm3/sec

3.56 mm3/sec

4.69 mm3/sec

1.21 mm3/sec

Solution:

A cylindrical workpiece of diameter 10 cm is turned on a lathe in orthogonal cutting condition using a tool with a 15° rake angle. If a chip of length 20 cm is obtained while cutting with a depth of cut of 0.6 mm, then the value of the shear plane angle and chip thickness is:

59.66° and 0.6 mm

36.36° and 0.6 mm

36.36° and 0.94 mm

54.54° and 0.57 mm

Machining-and-machine-tool-operations Questions Set 28:

What property of a material determines how easily it can be machined?

Solution:

What type of mechanism is used in a shaper machine?

Solution:

Which of the following is suitable if a smooth work surface finish is important?

Solution:

During bending, which phenomenon must be taken into consideration to reduce the deformation of the stock?

Solution:

When two non-intersecting and non-coplanar shafts are connected by gears, what is the arrangement known as?

Solution:

How can the capacity of a lathe be expressed?

Solution:

When screw threads are to be used in a situation where power is being transmitted in one direction only, which type of screw threads is suitable for this?

Solution:

In the case of a 'U' channel/section, the length of travel of the edge of the strip (effective length of the strip), 's', travelling in a helical pattern having an initial length 'l', is given by:

Solution:

A grinding operation requires 10 kW of power to be carried by the motor. The material removal rate is given as 23.65 mm³/sec and the grinding ratio is given as 12. Find the wear rate (in mm³/sec) of the grinding grains of the grinding wheel.

Solution:

A cylindrical workpiece of diameter 10 cm is turned on a lathe in orthogonal cutting condition using a tool with a 15° rake angle. If a chip of length 20 cm is obtained while cutting with a depth of cut of 0.6 mm, then the value of the shear plane angle and chip thickness is:

Solution:

Related Question Sets:

Related Topics:

Machining-and-machine-tool-operations Questions Set 28:

What property of a material determines how easily it can be machined?

Solution:

What type of mechanism is used in a shaper machine?

Solution:

Which of the following is suitable if a smooth work surface finish is important?

Solution:

During bending, which phenomenon must be taken into consideration to reduce the deformation of the stock?

Solution:

When two non-intersecting and non-coplanar shafts are connected by gears, what is the arrangement known as?

Solution:

How can the capacity of a lathe be expressed?

Solution:

When screw threads are to be used in a situation where power is being transmitted in one direction only, which type of screw threads is suitable for this?

Solution:

In the case of a 'U' channel/section, the length of travel of the edge of the strip (effective length of the strip), 's', travelling in a helical pattern having an initial length 'l', is given by:

Solution:

A grinding operation requires 10 kW of power to be carried by the motor. The material removal rate is given as 23.65 mm3/sec and the grinding ratio is given as 12. Find the wear rate (in mm3/sec) of the grinding grains of the grinding wheel.

Solution:

A cylindrical workpiece of diameter 10 cm is turned on a lathe in orthogonal cutting condition using a tool with a 15° rake angle. If a chip of length 20 cm is obtained while cutting with a depth of cut of 0.6 mm, then the value of the shear plane angle and chip thickness is:

Solution:

Related Question Sets:

Related Topics:

A grinding operation requires 10 kW of power to be carried by the motor. The material removal rate is given as 23.65 mm³/sec and the grinding ratio is given as 12. Find the wear rate (in mm³/sec) of the grinding grains of the grinding wheel.