Home
Current Affairs January 2024

What is the correct answer?

4

In a milling operation, two side milling cutters are mounted with a desired distance between them so that both sides of a workpiece can be milled simultaneously. This set up is called

A. Gang milling

B. Straddle milling

C. String milling

D. Side milling

Correct Answer :

B. Straddle milling


Related Questions

What is the correct answer?

4

A grinding wheel is said to be of _________ if the abrasive grains can be easily dislodged.

A. Soft grade

B. Medium grade

C. Hard grade

D. None of these

What is the correct answer?

4

Ultrasonic machining is best suited for

A. Tool steels

B. Sintered carbides

C. Glass

D. All of these

What is the correct answer?

4

The cutting speed for counter-boring should be _________ that of drilling operation.

A. Equal to

B. Less than

C. Greater than

D. None of these

What is the correct answer?

4

The vector sum of cutting velocity and chip velocity is __________ shear velocity.

A. Equal to

B. Less than

C. More than

D. None of these

What is the correct answer?

4

The chamfering is an operation of

A. Bevelling the extreme end of a workpiece

B. Embossing a diamond shaped pattern on the surface of a workpiece

C. Reducing the diameter of a workpiece over a very narrow surface

D. Enlarging the end of a hole cylindrically

What is the correct answer?

4

It is desired to perform the operations like drilling, reaming, counter-boring etc. on a work piece. Which of the following machine will be used?

A. Sensitive drilling machine

B. Radial drilling machine

C. Gang drilling machine

D. Multiple spindle drilling machine

What is the correct answer?

4

In a CNC program block, N002 GO2 G91 X40 Z40......, GO2 and G91 refer to

A. Circular interpolation in counter clockwise direction and incremental dimension

B. Circular interpolation in counter clockwise direction and absolute dimension

C. Circular interpolation in clockwise direction and incremental dimension

D. Circular interpolation in clockwise direction and absolute dimension

What is the correct answer?

4

Lathe bed is made of

A. Mild steel

B. Alloy steel

C. Pig iron

D. Chilled cast iron

What is the correct answer?

4

Which of the following statement is wrong about ultrasonic machining?

A. It is best suited for machining hard and brittle materials

B. It cuts materials at very slow speeds

C. It removes large amount of material

D. It produces good surface finish

What is the correct answer?

4

Jigs are used

A. For holding and guiding the tool in drilling, reaming or tapping operations

B. For holding the work in milling, grinding, planing or turning operations

C. To check the accuracy of workpiece

D. None of the above

What is the correct answer?

4

Surface grinding is done to produce

A. Tapered surface

B. Flat surface

C. Internal cylindrical holes

D. All of these

What is the correct answer?

4

A drill mainly used in drilling brass, copper or softer materials, is

A. Flat drill

B. Straight fluted drill

C. Parallel shank twist drill

D. Tapered shank twist drill

What is the correct answer?

4

In which of the following machine, the work remains stationary and the tool is rotated?

A. Vertical boring machine

B. Horizontal boring machine

C. Precision boring machine

D. Jig boring machine

What is the correct answer?

4

The abrasive slurry used in ultrasonic machining contains fine particles of

A. Aluminium oxide

B. Boron carbide

C. Silicon carbide

D. Any one of these

What is the correct answer?

4

The common welding error that occurs due to shrinkage of weld metal, faulty clamping of parts, faulty penetration or overheating at joints is called?

A. Distortion

B. Warping

C. Porous weld

D. Poor fusion

What is the correct answer?

4

Crater wear is predominant in

A. Carbon tool steels

B. Tungsten carbide tools

C. High speed steel tools

D. Ceramic tools

What is the correct answer?

4

The relief or clearance at the cutting edge of a flat drill varies from

A. 3° to 8°

B. 20° to 30°

C. 60° to 90°

D. 90° to 120°

What is the correct answer?

4

What is the name of the device used in arc welding circuits for the purpose of modifying the rate of current change when the weld road is varied rapidly?

A. Reactor

B. Kerf

C. Inductor

D. Cone

What is the correct answer?

4

The taper on the lathe spindle is

A. 1 in 10

B. 1 in 15

C. 1 in 20

D. 1 in 30

What is the correct answer?

4

If a particular Fe-C alloy contains less than 0.83% carbon, it is called

A. High speed steel

B. Hypo eutectoid steel

C. Hyper eutectoid steel

D. Cast iron

What is the correct answer?

4

The operation of machining several surfaces of a workpiece simultaneously is called

A. Profile milling

B. Gang milling

C. Saw milling

D. Helical milling

What is the correct answer?

4

The trade name of a nonferrous cast alloy composed of cobalt, chromium and tungsten is called

A. Ceramic

B. Stellite

C. Diamond

D. Cemented carbide

What is the correct answer?

4

The advantage of a broaching operation is that

A. Rate of production is very high

B. High accuracy and high class of surface finish is possible

C. Roughing and finishing cuts are completed in one pass of the tool

D. All of the above

What is the correct answer?

4

Segmental chips are formed during machining

A. Mild steel

B. Cast iron

C. High speed steel

D. High carbon steel

What is the correct answer?

4

Work speed of circular electrode of 220 mm diameter for carrying out seam welding at 4 welds per cm on 1.6 mm thick mild steel tube. Welding cycle consists of 3 cycles on and 2 cycles off Power supply is at 50 Hz. Calculate R.P.M. and energy requirement of the above circular electrodes assuming effective resistance between electrodes as 100 ohm.

A. 2.17 rpm, 600 joules

B. 6.8 rpm, 6 joules

C. 5.03 rpm, 600 joules

D. 22 rpm, 600 joules

What is the correct answer?

4

In a plain milling cutter, the chip space between the back of one tooth and the face of the next tooth is called

A. Face

B. Fillet

C. Gash

D. Land

What is the correct answer?

4

The operation of smoothing and squaring the surface around a hole is known as

A. Counter-sinking

B. Counter-boring

C. Trepanning

D. Spot facing

What is the correct answer?

4

Which of the following statement is incorrect with reference of lathe cutting tools?

A. The flank of the tool is the surface or surfaces below and adjacent to the cutting edges

B. The nose is the corner, arc or chamfer joining the side cutting and the end cutting edges

C. The heel is that part of the tool which is shaped to produce the cutting edges and face

D. The base is that surface of the shank which bears against the support and takes tangent pressure of the cut

What is the correct answer?

4

Larger end cutting edge angle _________ tool life.

A. Increases

B. Decreases

C. Does not effect

D. None of these

What is the correct answer?

4

A bottoming 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