Monday, August 24, 2026

Machinist iti trade Question RRB ALP Previous Year Paper part-b 75 Q&A

 

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1

RRB ALP Machinist  CBT-2 (PART-B)

28.07.2026 SHIFT-I

75 Q

 

 

RRB ALP 2nd Stage CBT Question for Machinist trade iti (CEN-01/2025) by railway life.

CBT-II Date - 28.07.2026, Time – 09:30 to 12:00 (Shift-I)
 

TOTAL QUESTION–75 CBT-2 PART-B, I.T.I TRADE– Machinist in Mechanical and allied group syllabus railway stage 2 exam.



Q.1 Which of the following best describes the main advantage of using temporary clamps in CNC work-holding?

CNC Work-Holding में Temporary Clamps के उपयोग का मुख्य Advantage क्या है?

A) They provide the strongest possible holding force during machining / ये Machining के दौरान सबसे अधिक Holding Force प्रदान करते हैं
B) They eliminate the need for aligning the workpiece before machining / ये Machining से पहले Workpiece Alignment की आवश्यकता समाप्त कर देते हैं
C) They are permanently attached to the machine table for stability / ये Stability के लिए Machine Table से Permanently Attached होते हैं
D) They allow quick setup changes and reusability for different jobs / ये Quick Setup Changes और अलग-अलग Jobs के लिए Reusability की सुविधा देते हैं

Answer: D) They allow quick setup changes and reusability for different jobs / ये Quick Setup Changes और अलग-अलग Jobs के लिए Reusability की सुविधा देते हैं

Description:
Temporary clamps can be installed and removed quickly, making them useful when work-holding arrangements need to be changed for different machining jobs.

हिंदी में:
Temporary Clamps को जल्दी Install और Remove किया जा सकता है। इसलिए अलग-अलग Machining Jobs के लिए Work-Holding Arrangement को आसानी से बदला जा सकता है और Clamps को दोबारा उपयोग किया जा सकता है।


Q.2 Which of the following best defines "downtime" in manufacturing?

Manufacturing में "Downtime" को सबसे सही तरीके से कैसे Define किया जाता है?

A) A period during which operators take scheduled breaks / वह समय जब Operators Scheduled Break लेते हैं
B) A period during which machines are not in production / वह समय जब Machines Production में नहीं होती हैं
C) A period during which routine maintenance is performed / वह समय जब Routine Maintenance किया जाता है
D) A period during which machines achieve maximum output / वह समय जब Machines Maximum Output देती हैं

Answer: B) A period during which machines are not in production / वह समय जब Machines Production में नहीं होती हैं

Description:
Downtime refers to a period when a machine or production system is not operating and therefore is not producing output.

हिंदी में:
Downtime वह अवधि है जब Machine या Production System Operate नहीं कर रहा होता और Production Output नहीं दे रहा होता।


Q.3 What is the defining characteristic of multi-point cutting tools?

Multi-Point Cutting Tools की मुख्य विशेषता क्या है?

A) Used for end cutting action / End Cutting Action के लिए उपयोग किए जाते हैं
B) Having single cutting edge / इनमें केवल एक Cutting Edge होती है
C) Having more than one cutting edge / इनमें एक से अधिक Cutting Edges होती हैं
D) Used for side cutting action / Side Cutting Action के लिए उपयोग किए जाते हैं

Answer: C) Having more than one cutting edge / इनमें एक से अधिक Cutting Edges होती हैं

Description:
A multi-point cutting tool has more than one cutting edge, allowing multiple edges to participate in the cutting operation.

हिंदी में:
Multi-Point Cutting Tool में एक से अधिक Cutting Edges होती हैं। Machining के दौरान ये Multiple Cutting Edges Cutting Operation में भाग लेती हैं।


 

Q.4 Which statement about the distance from the center in a spiral compared to that in a helix is true?

Spiral की Center से Distance और Helix की Distance के बारे में कौन-सा Statement सही है?

A) Helix's radius shrinks inward / Helix की Radius अंदर की ओर कम होती जाती है
B) Spiral's radius changes, helix's radius stays same / Spiral की Radius बदलती है, जबकि Helix की Radius समान रहती है
C) Both have constant radii / दोनों की Radius Constant होती है
D) Both radii increase / दोनों की Radius बढ़ती है

Answer: B) Spiral's radius changes, helix's radius stays same / Spiral की Radius बदलती है, जबकि Helix की Radius समान रहती है

Description:
In a spiral, the distance from the center changes as the curve moves outward or inward. In a helix, the curve wraps around a cylinder with a constant radius.

हिंदी में:
Spiral में Center से Distance आगे बढ़ने के साथ बदलती रहती है। इसके विपरीत Helix एक Cylinder के चारों ओर Constant Radius पर घूमती है, इसलिए इसकी Radius समान रहती है।


Q.5 Dark lines are observed on the surface of a ground workpiece after finishing. What is the most likely cause of these burn marks during the grinding operation?

Finishing के बाद Ground Workpiece की Surface पर Dark Lines दिखाई देती हैं। Grinding Operation के दौरान इन Burn Marks का सबसे संभावित कारण क्या है?

A) Wheel is too hard for the material / Material के लिए Grinding Wheel बहुत Hard है
B) Wheel speed is too slow / Wheel Speed बहुत Slow है
C) Sufficient coolant flow / पर्याप्त Coolant Flow
D) Wheel is too soft for the material / Material के लिए Grinding Wheel बहुत Soft है

Answer: A) Wheel is too hard for the material / Material के लिए Grinding Wheel बहुत Hard है

Description:
A grinding wheel that is too hard may not release worn abrasive grains properly. This can increase friction and heat generation, producing burn marks on the workpiece surface.

हिंदी में:
यदि Grinding Wheel Material की तुलना में बहुत Hard है, तो Worn Abrasive Grains उचित रूप से Release नहीं होते। इससे Friction और Heat Generation बढ़ सकती है, जिसके कारण Workpiece की Surface पर Burn Marks बन सकते हैं।


Q.6 A file is not removing material efficiently. What is the likely cause?

File Material को Efficiently Remove नहीं कर रही है। इसका सबसे संभावित कारण क्या है?

A) File is painted / File पर Paint किया गया है
B) File is too light weight / File का Weight बहुत कम है
C) Handle is too long / Handle बहुत लंबा है
D) Teeth are clogged with debris / File के Teeth Debris से Clogged हैं

Answer: D) Teeth are clogged with debris / File के Teeth Debris से Clogged हैं

Description:
When the teeth of a file become clogged with chips or debris, the cutting edges cannot effectively engage the workpiece, reducing material removal efficiency.

हिंदी में:
जब File के Teeth Chips या Debris से Clogged हो जाते हैं, तो Cutting Edges Workpiece को ठीक से Cut नहीं कर पातीं। इससे Material Removal की Efficiency कम हो जाती है।


Q.7 Which protective equipment is essential during a system failure response?

System Failure Response के दौरान कौन-सा Protective Equipment आवश्यक है?

A) Regular cotton gloves / Regular Cotton Gloves
B) Workshop caps / Workshop Caps
C) Insulated gloves / Insulated Gloves
D) Aprons / Aprons

Answer: C) Insulated gloves / Insulated Gloves

Description:
Insulated gloves provide electrical protection and help reduce the risk of electric shock when responding to a system failure involving electrical equipment.

हिंदी में:
Insulated Gloves Electrical Protection प्रदान करते हैं और Electrical Equipment से संबंधित System Failure के दौरान Electric Shock के Risk को कम करने में सहायता करते हैं।


Q.8 Which of the following statements best describes the vertical milling attachment?

Vertical Milling Attachment का सबसे सही Description क्या है?

A) It offers automatic indexing operation / यह Automatic Indexing Operation प्रदान करता है
B) It converts horizontal to vertical spindle orientation / यह Horizontal Spindle को Vertical Spindle Orientation में बदलता है
C) It provides rotary table movement / यह Rotary Table Movement प्रदान करता है
D) It enables gear cutting on horizontal machines / यह Horizontal Machines पर Gear Cutting की सुविधा देता है

Answer: B) It converts horizontal to vertical spindle orientation / यह Horizontal Spindle को Vertical Spindle Orientation में बदलता है

Description:
A vertical milling attachment allows a horizontal milling machine to perform operations with the spindle positioned vertically.

हिंदी में:
Vertical Milling Attachment, Horizontal Milling Machine के Spindle को Vertical Orientation में कार्य करने की सुविधा देता है। इससे Vertical Milling Operations किए जा सकते हैं।


Q.9 Given the ratio 3:4::6:8, which operation verifies the proportion?

3:4::6:8 दिए गए Ratio में कौन-सा Operation Proportion को Verify करता है?

A) 3 × 8 = 6 × 4 / 3 × 8 = 6 × 4
B) 3 − 4 = 6 − 8 / 3 − 4 = 6 − 8
C) 3 + 8 = 6 + 4 / 3 + 8 = 6 + 4
D) 3/8 = 6/4 / 3/8 = 6/4

Answer: A) 3 × 8 = 6 × 4 / 3 × 8 = 6 × 4

Description:
A proportion is verified using cross multiplication: . Here, 3 × 8 = 4 × 6 = 24.

हिंदी में:
Proportion को Cross Multiplication से Verify किया जाता है: । यहाँ 3 × 8 = 4 × 6 = 24 है, इसलिए Proportion सही है।


Q.10 If you replaced a left-hand helix with a right-hand helix in a reversing motion device, what problem might occur?

Reversing Motion Device में Left-Hand Helix को Right-Hand Helix से Replace करने पर कौन-सी समस्या हो सकती है?

A) Thread may loosen / Thread ढीला हो सकता है
B) Thread binds more / Thread अधिक Bind हो सकता है
C) Thread stays tight / Thread Tight रहता है
D) Thread changes pitch / Thread की Pitch बदल जाती है

Answer: A) Thread may loosen / Thread ढीला हो सकता है

Description:
A reversing motion device may require a specific helix direction to maintain secure engagement. Replacing a left-hand helix with a right-hand helix can cause the thread to loosen during operation.

हिंदी में:
Reversing Motion Device में Secure Engagement बनाए रखने के लिए विशेष Helix Direction की आवश्यकता हो सकती है। Left-Hand Helix को Right-Hand Helix से बदलने पर Operation के दौरान Thread ढीला हो सकता है।


Q.11 What is the formula used to calculate the hourly depreciation of a machine?

Machine की Hourly Depreciation Calculate करने के लिए कौन-सा Formula उपयोग किया जाता है?

A) (Cost of Machine + Scrap Value) ÷ Total Machine Working Hours / (Machine Cost + Scrap Value) ÷ Total Machine Working Hours
B) (Cost of Machine − Replacement Cost) ÷ Total Machine Working Hours / (Machine Cost − Replacement Cost) ÷ Total Machine Working Hours
C) (Cost of Machine + Scrap Value) × Total Machine Working Hours / (Machine Cost + Scrap Value) × Total Machine Working Hours
D) (Cost of Machine − Scrap Value) ÷ Total Machine Working Hours / (Machine Cost − Scrap Value) ÷ Total Machine Working Hours

Answer: D) (Cost of Machine − Scrap Value) ÷ Total Machine Working Hours / (Machine Cost − Scrap Value) ÷ Total Machine Working Hours

Description:
Hourly depreciation is calculated by subtracting the scrap value from the original machine cost and dividing the depreciable amount by the total expected working hours.

हिंदी में:
Hourly Depreciation निकालने के लिए Machine की Original Cost में से Scrap Value घटाई जाती है। इसके बाद प्राप्त Depreciable Amount को Total Expected Working Hours से Divide किया जाता है।



FAQ

 

Q1. RRB ALP CBT2 PART-B qualified required in final merit?

Answer- No, the RRB ALP CBT2 Part B (the iti trade test) is not included in the final merit list calculation. It is a qualifying section, meaning candidates must score the minimum qualifying marks (35% or 27 marks out of 75) to pass, but the marks obtained in Part B are not used to determine the final merit. The final merit is based on the performance in Part A of CBT2 and the CBAT (Computer Based Aptitude Test).

 

Q2. where rrb alp cbt2 part-b mcq questions and answers available?

Answer- Candidates can download rrb alp cbt2 part-b question paper after Response key has been published. also available many website or Paid version E-BOOK & PDF with solution Candidates can download railway life pdf E-book for better under stand from this Link  click here  

 

 

Q3- Machinist iti trade is under which group of ALP exam?

Answer - Machinist iti trade Group is mechanical and Automobile and Allied Trade industrial training institution is full form name of ITI.