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

Machining-and-machine-tool-operations Questions Set 19:

Quiz Mode

The yield point can be completely recovered in a zinc crystal at _____

Room Temperature

32°C

50°C

88°C

Solution:

When an asymmetrical section is roll formed, the finished product will have _____

Camber

Cross-bow

A twist

Waviness

Solution:

When is gear lapping operation used?

Prior to heat treatment

For gear reconditioning

After heat treatment

After cool treatment

Solution:

Which equation is used to represent tool life?

Neon's tool life equation

Taylor's tool life equation

Leo's tool life equation

Marc's tool life equation

Solution:

Match the accessories used in a Lathe machine (List 1) with their uses (List 2).

1-S, 2-R, 3-Q, 4-P

1-P, 2-S, 3-R, 4-Q

1-R, 2-Q, 3-P, 4-Q

1-S, 2-Q, 3-P, 4-R

Solution:

Which factors are responsible for the formation of a continuous chip in lathe operations?

Ductile material

High cutting speed

Large rake angle

All of the above

Solution:

The strain energy of the metal increases with increasing the dislocation densities.

increases

decreases

does not change

first decreases and then remains constant

Solution:

A 110 mm diameter hole is to be punched in a 6 mm thick sheet of cold rolled steel with a shear strength of 560 MPa. Calculate the total work done in punching the hole without considering shear.

2786.6 J

560 J

5685.52 J

5.090 J

Solution:

The flank wear of a cutting tool is mainly caused by the rubbing of the flank surface of the tool with which of the following?

The already cut surface of the workpiece.

The base of the machine holding the workpiece.

The newly cut surface of the workpiece.

The rough surface of the workpiece.

Solution:

A 200 mm long workpiece is used to cut a 30 mm deep slot with the help of an HSS side and slab cutter whose diameter is 200 mm and it has 20 teeth. The cutting speed is 80 m/min and the feed is 0.4 mm per tooth. Calculate the time required to machine the slot (up to 2 decimal places).

15.98 seconds

45.63 seconds

34.78 seconds

57.88 seconds

Machining-and-machine-tool-operations Questions Set 19:

The yield point can be completely recovered in a zinc crystal at _____

Solution:

When an asymmetrical section is roll formed, the finished product will have _____

Solution:

When is gear lapping operation used?

Solution:

Which equation is used to represent tool life?

Solution:

Match the accessories used in a Lathe machine (List 1) with their uses (List 2).

Solution:

Which factors are responsible for the formation of a continuous chip in lathe operations?

Solution:

The strain energy of the metal increases with increasing the dislocation densities.

Solution:

A 110 mm diameter hole is to be punched in a 6 mm thick sheet of cold rolled steel with a shear strength of 560 MPa. Calculate the total work done in punching the hole without considering shear.

Solution:

The flank wear of a cutting tool is mainly caused by the rubbing of the flank surface of the tool with which of the following?

Solution:

A 200 mm long workpiece is used to cut a 30 mm deep slot with the help of an HSS side and slab cutter whose diameter is 200 mm and it has 20 teeth. The cutting speed is 80 m/min and the feed is 0.4 mm per tooth. Calculate the time required to machine the slot (up to 2 decimal places).

Solution:

Related Question Sets:

Related Topics: