FREE Bachelor of Mechanical Engineering Advanced Manufacturing Questions and Answers

Question 1

Which of the following applications also makes use of the hobbing process?

Accepted Answer

Sprocket cutting

Answer

Punching

Answer

Metal bending

Answer

Rust removal

Question 2

Which of the following is a specific instance of hobbling?

Accepted Answer

Milling

Answer

Drilling

Answer

Grinding

Answer

Casting

Question 3

The angle between the workpiece's spindle axis and the hob's spindle axis should equal ___ while making spur gears.

Accepted Answer

(helix angle of the hob)

Answer

(helix angle of the hob)2

Answer

2*(helix angle of the hob)

Answer

(helix angle of the hob)/2

Question 4

As the helix angle of the helical gear, the angle between the spindle axes of the hob and the workpiece must be .

Accepted Answer

increased by the same amount

Answer

decreased by the half amount

Answer

decreased by the same amount

Answer

increased by the half amount

Question 5

What is the primary benefit of broaching versus shaping?

Accepted Answer

Removal of the whole material in one stroke

Answer

Surfaces with obstruction can also be machined

Answer

Thin or fragile jobs can be conveniently machined because of lower cutting forces

Answer

Use of single point cutting tool which are inexpensive and can be grounded to any shape

Question 6

Which of the following operations can be carried out using broaching?

Accepted Answer

Spline cutting

Answer

Threading

Answer

Increasing the size of the existing hole for a certain length

Answer

Grinding

Question 7

Which of the following materials is most suited for roll forming?

Accepted Answer

Mild steels and aluminium

Answer

Non-metals

Answer

Spring steel

Answer

Chromium-molybdenum steel

Question 8

What time does spring back happen?

Accepted Answer

When the material does not stress beyond its elastic limit

Answer

When the material is too soft

Answer

When the material is too hard

Answer

When the material is stressed beyond its elastic limit

Question 9

Which of the following is utilized in heavy-duty roll forming as lubricant?

Accepted Answer

Soap-type solutions

Answer

Micro-emulsions

Answer

Non-ionic type solutions

Answer

Extreme pressure-type solutions

Question 10

Which of the following is best for lubrication when cold and hot rolled steel is formed into rolls?

Accepted Answer

Micro-emulsion

Answer

SAE 20W 40

Answer

SAE 120

Answer

Macro-emulsion