1) Which of the following is a mechanism for mechanized movements of the carriage along longitudinal axis?
a. Cross-slide
b. Compound rest
c. Apron
d. Saddle
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Answer
Explanation
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ANSWER: Apron
Explanation:
No explanation is available for this question!
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2) A flat surface can be produced by a lathe machine, if the cutting tool moves _____
a. parallel to the axis of rotation of workpiece
b. perpendicular to the axis of rotation of workpiece
c. at an angle of 45 0
d. none of the above
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Answer
Explanation
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ANSWER: perpendicular to the axis of rotation of workpiece
Explanation:
No explanation is available for this question!
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3) On drilling machine, which process is known as reaming?
a. Enlargement of existing hole
b. Hole made by removal of metal along the hole circumference
c. Smoothly finishing and accurately sizing a drilled hole
d. All of the above
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Answer
Explanation
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ANSWER: Smoothly finishing and accurately sizing a drilled hole
Explanation:
No explanation is available for this question!
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4) The function of taper turning process is to ____
a. reduce the diameter of a workpiece along its length
b. reduce the diameter by removing material about an axis offset from the axis of workpiece
c. remove the material from end surface of a workpiece
d. all of the above
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Answer
Explanation
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ANSWER: reduce the diameter of a workpiece along its length
Explanation:
No explanation is available for this question!
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5) The process of bevelling sharp ends of a workpiece is called as ________
a. knurling
b. grooving
c. facing
d. chamfering
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Answer
Explanation
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ANSWER: chamfering
Explanation:
No explanation is available for this question!
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6) What is the function of cone pulley drive in lathe machines?
a. Drive the lead screw
b. Change the spindle speed
c. Drive the tail-stock
d. All of the above
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Answer
Explanation
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ANSWER: Change the spindle speed
Explanation:
No explanation is available for this question!
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7) Which process squeezes metals into peaks and troughs with plastic deformation?
a. Grooving
b. Knurling
c. Reaming
d. None of the above
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Answer
Explanation
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ANSWER: Knurling
Explanation:
No explanation is available for this question!
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8) Which of the following operations is/are performed on a lathe machine?
a. Spot-facing
b. Parting
c. Reaming
d. All of the above
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Answer
Explanation
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ANSWER: Parting
Explanation:
No explanation is available for this question!
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9) The process of chamfering the entrance of a drilled hole is known as_____
a. counter-boring
b. counter-sinking
c. counter-fillet
d. trepanning
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Answer
Explanation
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ANSWER: counter-sinking
Explanation:
No explanation is available for this question!
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10) Which of the following statements is/are false for machine tools?
1. Pillar drilling machine drills holes up to 75 mm
2. Regulating wheel is a component of surface grinding machine
3. Sensitive drilling machine is also known as bench drilling machine
4. The chuck of an internal grinding machine placed in tailstock is driven by an electric motor
a. Only 1
b. 2 and 4
c. 1 and 3
d. All of the above
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Answer
Explanation
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ANSWER: 2 and 4
Explanation:
No explanation is available for this question!
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