Explanation: The process of enlarging and finishing previously drilled holes to accurate size using a multi-point cutting tool is called as Reaming. The Tool used for this process is called Reamer.

What is the purpose of Reamer Mcq?

A reamer is a multi-point cutting tool used for enlarging by finishing previously drilled holes to accurate size.

Which of the following operation we can't perform on drilling machine Mcq?

We can't perform grinding operation in a drilling machine.

What is the drilling machine?

drill press, also called Drilling Machine, device for producing holes in hard substances. The drill is held in a rotating spindle and is fed into the workpiece, which is usually clamped in a vise resting on a table. ... Drilling machines, also called drill presses, cut holes in metal with a twist drill....

Which of the following operation is performed before reaming?

To produce more accurate holes, which of the following operation should be performed first? Explanation: As per the characteristic of all these operation, centering should be performed first before drilling, reaming and boring in order to produce more accurate holes.

Drill and Drilling Operation | ड्रिल और ड्रिलिंग संक्रियाएँ | Drilling and Drill Machine MCQ

38 related questions found

What is reaming operation?

What is reaming? Reaming is a finishing operation of high-precision holes performed with a multi-edge tool. High surface finish, superb hole quality and close dimensional tolerance are achieved at high penetration rates and small depths of cut.

Which of the following drilling machine operation is a finishing operation?

Reaming: It is an operation of finishing a drilled hole. A finished hole has the specified diameter size, is perfectly round, the diameter is the same size from end to end, and it has a smoothly finished surface. A drill hole is seldom accurate enough in size or sufficiently smooth to be called a precision hole.

What is the drilling process?

Drilling is a cutting process that uses a drill bit to cut a hole of circular cross-section in solid materials. The drill bit is usually a rotary cutting tool, often multi-point. The bit is pressed against the work-piece and rotated at rates from hundreds to thousands of revolutions per minute.

How does a drilling machine work?

Working Principle of Drilling Machine: When the power is given to the motor, the spindle rotates and thereby the stepped pulley attached to it also rotates. On the other end, one more stepped pulley is attached and that is inverted to increase or decrease the speed of the rotational motion.

How do you specify a drilling machine?

A portable drilling machine is specified by the maximum diameter of the drill that it can handle. The size of the sensitive and upright drilling machines are specified by the size of the largest workpiece that can be centered under the spindle.

Which type of process is also known as fabrication process?

Explanation: Joining process is also known as the fabrication process. In fabrication process, product is made from raw materials and not from ready made components.

Which type of job motion is there in drilling operation Mcq?

2. Which type of job motion is there in drilling operation? Explanation: Motion of job is fixed in drilling operation. The drilling machine is one of the most important machine tool in workshop after lathe.

What processes are commonly performed on a drill press in addition to drilling?

The chief operation performed on the drill press is drilling, but other possible operations include: reaming, countersinking, counterboring, and tapping.

Which process is termed as reaming?

Explanation: The process of enlarging and finishing previously drilled holes to accurate size using a multi-point cutting tool is called as Reaming. The Tool used for this process is called Reamer.

Why reaming is done?

The primary purpose of reaming is simply to create smooth walls in an existing hole. Manufacturing companies perform reaming using a milling machine or drill press.

How Twist drill is specified?

Solution(By Examveda Team)

It is specified by it's shank, material and diameter.

What is drilling in mines?

Page Content. ​Drilling is the process of penetrating through the ground and extracting rocks from various depths beneath the surface for confirming the geology beneath and/or providing samples for chemical analysis.

What is upright drilling machine?

The upright drilling machine is designed for handling medium sized workpieces. Though it looks like a sensitive drilling machine, it is larger and heavier than a sensitive drilling machine. Holes of diameter upto 50mm can be made with this type of machine. Besides, it is supplied with power feed arrangement.

What is the principal of drilling?

Working principle: The rotating edge of the drill exerts a large force on the workpiece and the hole is generated. The removal of metal in a drilling operation is by shearing and extrusion.

What is drilling operation on lathe machine?

Drilling is the operation of producing a cylindrical hole in a workpiece. It is done by a rotating tool, the rotating side of the cutter, known as a drilling drill. In this operation, The workpiece is revolving in a chuck or a faceplate and the drill is held in the tailstock drill holder or drill chuck.

What is radial drilling machine?

: a drilling machine with the drill spindle in a toolhead and saddle that are movable along a projecting arm which itself can be rotated about a vertical column.

What is drilling and types of drilling?

 There is much confusion in distinguishing between rotary and diamond drilling as both involve both a purely rotary action and diamond coring bits are also used in rotary rigs and non coring bits are also used often in diamond drilling. ...  Rotary rigs are much bigger and powerful than diamond drilling machines. 20.

Which taper used in the drilling machine?

The Jacobs Taper (abbreviated JT) is commonly used to secure drill press chucks to an arbor. The taper angles are not consistent varying from 1.41° per side for #0 (and the obscure #21⁄2) to 2.33° per side for #2 (and #2 short).

What are the types of drilling operations?

Following are the different operations performed on the drilling machine:

• Drilling operation.
• Reaming operation.
• Boring operation.
• Counterboring operation.
• Countersinking operation.
• Spot facing operation.
• Tapping operation.
• Lapping operation.

What is a drill twist?

: a drill having deep helical grooves extending from the point to the smooth portion of the shank.