# Pt -2 Quiz 2

20 Questions | Total Attempts: 96  Settings Create your own Quiz Dear Students, plz fill complete and correct details before starting the quiz. This quiz contains 20 questions and time given is 10 minutes. Quiz will start at 9 PM on 19 Nov 2019 and finish at 9 30 PM You can attempt only for one time.

• 1.
In metal cutting, use of low feeds and high cutting speeds is desired when the objective is
• A.

(A) High metal removal rate

• B.

(B) Dry machining

• C.

(C) Use of soft cutting tool

• D.

(D) Surface finish

• 2.
In order to achieve a specific surface finish in single point turning, the most important factor to be controlled is
• A.

(A) Depth of cut

• B.

(B) Cutting speed

• C.

(C) Feed

• D.

(D) Tool rake angle

• 3.
A lathe with four steps on the cone pulley and with back-gears will have
• A.

(A) Four direct speeds

• B.

(B) Four indirect speeds

• C.

(C) Four direct and four indirect speeds

• D.

(D) Eight indirect speeds

• 4.
The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)
• A.

(A) VnT = C

• B.

(B) VTn = C

• C.

(C) Vn/T = C

• D.

(D) V/Tn = C

• 5.
The vector sum of cutting velocity and chip velocity is __________ shear velocity.
• A.

(A) Equal to

• B.

(B) Less than

• C.

(C) More than

• D.

(D) None of these

• 6.
The angle made by the face of the tool and the plane parallel to the base of cutting tool is called
• A.

(A) Rake angle

• B.

(B) Cutting angle

• C.

(C) Clearance angle

• D.

(D) Lip angle

• 7.
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.

(A) Sensitive drilling machine

• B.

(B) Radial drilling machine

• C.

(C) Gang drilling machine

• D.

(D) Multiple spindle drilling machine

• 8.
The correct sequence of the following parameters in order of their maximum to minimum influence on tool life is
• A.

(A) Feed rate, depth of cut, cutting speed

• B.

(B) Depth of cut, cutting speed, feed rate

• C.

(C) Cutting speed, feed rate, depth of cut

• D.

(D) Feed rate, cutting speed, depth of cut

• 9.
In a center lathe, the cutting tool is fed in _________ with reference to the lathe axis.
• A.

(A) Cross direction only

• B.

(B) Longitudinal direction only

• C.

(C) Both cross and longitudinal direction

• D.

(D) Any direction

• 10.
Any number of equal divisions can be obtained on milling machine by
• A.

(A) Direct indexing

• B.

(B) Simple indexing

• C.

(C) Compound indexing

• D.

(D) Differential indexing

• 11.
The tool life is affected by
• A.

(A) Depth of cut

• B.

(B) Cutting speed

• C.

(C) Feed

• D.

(D) All of these

• 12.
Hard and tough materials like cast iron should be turned at
• A.

(A) Slow speed

• B.

(B) High speed

• C.

(C) Any speed

• D.

(D) Certain specific speed

• 13.
The effect of setting a boring tool above center height leads to
• A.

(A) Increase in the effective rake angle and a decrease in the effective clearance angle

• B.

(B) Increase in both effective rake angle and effective clearance angle

• C.

(C) Decrease in the effective rake angle and an increase in the effective clearance angle

• D.

(D) Decrease in both effective rake angle and effective clearance angle

• 14.
The machining of titanium is difficult due to
• A.

(A) High thermal conductivity of titanium

• B.

(B) Chemical reaction between tool and work

• C.

(C) Low tool-chip contact area

• D.

(D) None of these

• 15.
The size of a lathe is specified by the
• A.

(A) Length between centers

• B.

(B) Swing diameter over the bed

• C.

(C) Swing diameter over the carriage

• D.

(D) All of these

• 16.
Which of the following statement is wrong?
• A.

(A) The larger side rake angle produces chipping

• B.

(B) The smaller rake angle produces excessive wear and deformation in tool

• C.

(C) The side cutting edge angle (less than 15°) increases tool life

• D.

(D) The increase in nose radius decreases tool life

• 17.
A single point thread cutting tool should ideally have
• A.

(A) Zero rake angle

• B.

(B) Positive rake angle

• C.

(C) Negative rake angle

• D.

(D) Point angle

• 18.
In which of the following machine, the work rotates and the tool is stationary?
• A.

(A) Vertical boring machine

• B.

(B) Horizontal boring machine

• C.

(C) Precision boring machine

• D.

(D) Jig boring machine

• 19.
In drilling aluminum, a drill with
• A.

(A) Zero helix angle is used

• B.

(B) Low helix angle is used

• C.

(C) High helix angle is used

• D.

(D) Any helix angle can be used

• 20.
The operation performed on a shaper is
• A.

(A) Machining horizontal surface

• B.

(B) Machining vertical surface

• C.

(C) Machining angular surface

• D.

(D) All of these

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