# Pt -2 Quiz 2

20 Questions | Total Attempts: 88  Settings  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.

• 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 Back to top