Manufacturing And Production Technology MCQ Questions & Answers

Manufacturing And Production Technology MCQ Questions & Answers | Mechanical Engineering

Learn Manufacturing And Production Technology MCQ questions & answers are available for a Mechanical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Manufacturing And Production Technology MCQ question is the important chapter for a Mechanical Engineering and GATE students. Page-9 section-1

Tool signature consists of __________ elements.

A) Two B) Four C) Five D) Seven

Discuss

Answer & Solution

Answer: Option D

Solution:

The seven elements that comprise the signature of a single point cutting tool are always stated in the following order:
i. Back rake angle
ii. Side rake angle
iii. End relief angle
iv. Side relief angle
v. End cutting edge angle
vi. Side cutting edge angle
vii. Nose radius

The lead screw of a lathe has _________ threads.

A) Single start B) Double start C) Multi-start D) Any one of these

Discuss

Answer & Solution

Answer: Option A

Solution:

A single-start thread has one continuous thread running along the body of the screw A trapezoidal thread is used in the leadscrew of lathe machine. It has a 30 degree included angle. Stronger at the root. Easy to manufacture compared to square thread.

A broach has

A) Roughing teeth B) Semi-finishing teeth C) Finishing teeth D) All of these

Discuss

Answer & Solution

Answer: Option D

Solution:

Broaches are shaped similar to a saw, except the height of the teeth increases over the length of the tool. Moreover, the broach contains three distinct sections: one for roughing, another for semi-finishing, and the final one for finishing.

A taper tap has

A) Its end tapered for about three or four threads B) Its end tapered for about eight or ten threads C) Full threads for the whole of its length D) None of the above

Discuss

Answer & Solution

Answer: Option B

Solution:

The taper tap has 7 to 10 chamfered threads; the plug tap has 3 to 5 threads chamfered; while the bottoming tap has one thread chamfered. Hand taps have short square-ended shanks and are used for both machine and hand tapping. Taps are usually made either of carbon tool steel or high-speed steel.

In a plain milling machine, the table can be moved

A) Longitudinally B) Crosswise C) Vertically D) All of these

Discuss

Answer & Solution

Answer: Option D

Solution:

In a plain milling machine, the table can be moved -Longitudinally -Crosswise - Vertically

The type of tool used on milling machine and broaching machine is

A) Single point cutting tool B) Two point cutting tool C) Three point cutting tool D) Multi-point cutting tool

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board

Cast iron during machining produces

A) Continuous chips B) Discontinuous chips C) Continuous chips with built-up edge D) None of these

Discuss

Answer & Solution

Answer: Option B

Solution:

Cast iron during machining produces Discountinuous chips. It often happens in high brittle materials, such as cast iron

The cutting fluid mostly used for machining steel is

A) Water B) Soluble oil C) Dry D) Heavy oils

Discuss

Answer & Solution

Answer: Option B

Solution:

Soluble oil of the highest grade is used as a lubricant. It is used in metalworking industries as a cutting fluid for aluminum. For machining, tapping and drilling aluminum, it is superior to kerosene and various water-based cutting fluids.

The ductile materials, during machining, produce

A) Continuous chips B) Discontinuous chips C) Continuous chips with built up edge D) Either (A) or (C)

Discuss

Answer & Solution

Answer: Option D

Solution:

Discontinuous chips are formed during machining of brittle metals while continuous chips are formed during machining of ductile materials.

The tool life is said to be over if

A) Poor surface finish is obtained B) There is sudden increase in cutting forces and power consumption C) Overheating and fuming due to heat of friction starts D) All of the above

Discuss

Answer & Solution

Answer: Option D

No explanation is given for this question. Let's Discuss on Board