Lathe MCQ - Machinist(Set-1) with Answers

121) The tailstock barrel has an internal taper. Which one of the following standard tapers is provided in the barrel bore ?

Answer is:

Morse taper

122) When machining irregularly shaped workpiece held in face plate, counterbalancing is done by clamping weights. This is done

Answer is:

After mounting the face plate on the spindle nose and keeping the spindle in neutral position

Explanation:

When machining irregularly shaped workpiece held in face plate, counterbalancing is done by clamping weights. This is done after mounting the face plate on the spindle nose and keeping the spindle in neutral position.

123) Lead is the metal used for balancing weight during lathe face plate work. The reason for using lead is that it is very

Answer is:

heavy

124) Which one of the following methods of catching the threads consumes more time when cutting odd pitch threads ?

Answer is:

Marking the work holding device and lead screw

125) A hole is drilled in a lathe by using a Dia 10 mm straight shank drill held in a drill chuck. After a short distance of the drill travel, it rotates along with the work. Which one of the following is the cause for this defect ?

Answer is:

121) The tailstock barrel has an internal taper. Which one of the following standard tapers is provided in the barrel bore ?

Morse taper

122) When machining irregularly shaped workpiece held in face plate, counterbalancing is done by clamping weights. This is done

After mounting the face plate on the spindle nose and keeping the spindle in neutral position

123) Lead is the metal used for balancing weight during lathe face plate work. The reason for using lead is that it is very

heavy

124) Which one of the following methods of catching the threads consumes more time when cutting odd pitch threads ?

Marking the work holding device and lead screw

125) A hole is drilled in a lathe by using a Dia 10 mm straight shank drill held in a drill chuck. After a short distance of the drill travel, it rotates along with the work. Which one of the following is the cause for this defect ?

Chips getting clogged