100+ Free BTEB Machinist Practice Questions

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Sample BTEB Machinist Practice Questions

Try these sample questions to test your BTEB Machinist exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1When operating a bench or pedestal grinder in a machine shop, which combination of personal protective equipment is required in addition to eye protection?

A.Ear protection, face protection, and safety shoes, since grinding produces noise, flying particles, and heavy stock can be dropped on the feet

B.Only a dust mask, because grinding wheels do not generate noise or heat

C.A full chemical-splash apron, since grinding produces corrosive fumes

D.Insulated electrical gloves, because grinding wheels operate at high voltage

Explanation: Bench and pedestal grinders create noise, flying abrasive particles, and heavy stock that can be dropped, so ear protection, face protection (goggles or face shield), and safety shoes are required alongside standard eye protection, matching the PPE range listed in the machine shop OHS competency standard. Gloves are worn only when necessary because loose gloves can be caught by the rotating wheel.

2Under BTEB's Occupational Health and Safety (OHS) unit for machine shop trainees, what is the correct first step when a trainee identifies a hazard or unsafe condition in the workshop?

A.Ignore it if it does not affect the trainee's own workstation

B.Continue working and report it only at the end of the shift

C.Fix the hazard personally without informing anyone, regardless of training

D.Report the hazard or risk to the supervisor/authority so it can be assessed and controlled

Explanation: The competency standard for applying OHS practices requires that hazards and risks be identified, assessed, and reported to the appropriate authority so corrective action can be taken, rather than being fixed informally or left unreported.

3Which of the following is part of the "respond to emergencies" element of the machine shop OHS competency standard?

A.Filing a written incident report only after the machine has been repaired

B.Waiting for a supervisor to arrive before doing anything

C.Implementing the emergency response plan and applying first aid procedures such as washing a wound or applying a bandage

D.Recording only material losses, not injuries

Explanation: The 'respond to emergencies' element requires explaining alarms and warning devices, implementing emergency response and evacuation procedures, and applying first-aid procedures (such as washing an open wound, applying a bandage, or a tourniquet) during an emergency situation.

4A machinist needs to calculate the material cost for a batch of 25 identical steel bushings, each requiring 0.4 kg of mild steel. How many kilograms of mild steel should be ordered for the batch?

A.6.25 kg

B.10 kg

C.25.4 kg

D.62.5 kg

Explanation: Estimating and costing calculations in machine shop practice use simple multiplication: 25 bushings x 0.4 kg each = 10 kg of mild steel required for the batch, before allowing for machining scrap.

5A technical drawing specifies a shaft length of 15 centimeters. What is this length in millimeters, the unit normally used on a machinist's steel rule?

A.150 mm

B.1.5 mm

C.1,500 mm

D.15 mm

Explanation: Since 1 centimeter equals 10 millimeters, 15 cm converts to 150 mm. Unit conversion between metric length units is a routine calculation a machinist performs when reading drawings dimensioned in mixed units.

6In the machine shop OHS competency standard, a loose drive belt guard or an unguarded rotating chuck is classified as which type of hazard?

A.A biological hazard

B.A chemical hazard

C.An ergonomic-only hazard with no injury risk

D.A physical (machine) hazard

Explanation: The OHS range of variables classifies machine hazards (such as unguarded moving parts, belts, and chucks) and tools/equipment hazards under physical hazards, distinct from chemical and biological hazards.

7A component takes 4 minutes to face and turn on a lathe. If a machinist must produce 45 identical components during an 8-hour shift with 60 minutes allowed for breaks and machine setup, is the target achievable?

A.No, because 45 components require more than 8 hours of continuous machining

B.No, because 4 minutes per part exceeds the shift length

C.Yes, because 45 components x 4 minutes = 180 minutes, well within the 420 minutes of available production time

D.Yes, but only if breaks and setup time are skipped entirely

Explanation: Total production time is 45 x 4 = 180 minutes. An 8-hour (480-minute) shift minus 60 minutes for breaks/setup leaves 420 minutes available, so 180 minutes is comfortably within the available time.

8Which set of items is correctly classified as Personal Protective Equipment (PPE) under the machine shop OHS competency standard's range of variables?

A.Steel rule, vernier caliper, micrometer, and dial indicator

B.Apron, gas mask, gloves, safety shoes, helmet, face mask, goggles, ear plugs

C.Tap set, die set, hacksaw, and file

D.Drawing, working plan, and job order sheet

Explanation: The OHS competency standard's range of variables lists PPE as items such as apron, gas mask, gloves, safety shoes, helmet, face mask, goggles/safety glasses, ear plugs, sun block, and chemical/gas masks — worn to protect the worker from identified hazards.

9What is the primary purpose of interpreting a technical drawing before starting a machine shop job?

A.To identify dimensions, tolerances, material specification, and symbols so the component is produced to the correct specification

B.To decorate the workshop noticeboard

C.To determine the trainee's daily attendance

D.To replace the need for any measuring instruments during production

Explanation: Interpreting a technical drawing means identifying components, assemblies, dimensions, clearances/tolerances, instructions, material specification, and symbols so that the job can be produced to the exact specification required.

10On a machine shop drawing, a note specifies a tolerance of +/-0.05 mm on a shaft diameter. What does this tolerance describe?

A.The exact surface roughness value required

B.The material hardness after heat treatment

C.The recommended cutting speed for machining the shaft

D.The permissible variation above and below the nominal diameter that is still acceptable

Explanation: A tolerance such as +/-0.05 mm defines the allowable variation from the nominal (basic) size within which the finished dimension is still considered acceptable, and it is checked against workplace standards during precision measurement.

About the BTEB Machinist Exam

The BTEB National Skill Certificate in Machinist / Machine Shop Practice certifies competence in bench work, lathe, milling, shaper and grinding operations in Bangladesh. The trade-theory component covers workplace safety and workshop math, technical drawing and precision measurement, bench work and fitting, drilling, lathe operations, milling operations, shaper operations and precision grinding, alongside a hands-on practical assessment on real machine tools.

Assessment

Competency-based assessment combining a theory paper (multiple-choice and short written questions) with a separate supervised practical machine-shop test, administered by BTEB through affiliated technical institutes. Question counts vary by level (Basic/NSC).

Time Limit

Theory papers typically run a few hours, with the practical machine-shop competency test conducted separately under supervision. Confirm exact timing with your institute.

Passing Score

BTEB sets the competency standard, generally requiring a pass in both theory and practical components; written-paper thresholds of around 40-50% are commonly reported, but the definitive standard depends on your level and institute.

Exam Fee

Registration and assessment fees are set by BTEB and the enrolling institute and are government-subsidised but change periodically. Confirm the current amount with your institute. (Bangladesh Technical Education Board (BTEB))

BTEB Machinist Exam Content Outline

Workplace Safety and Math

PPE, OHS procedures, hazard reporting, fire safety and basic workshop mathematics and unit conversion.

Technical Drawing and Measurement

Reading technical drawings, orthographic views, tolerances, and precision instruments such as the vernier caliper, micrometer and dial gauge.

17%

Bench Work and Fitting

Filing, hacksawing, marking out, hand-tapping and threading, chiselling, scraping, hand-tool grinding and work-holding devices.

Drilling Operations

Twist-drill anatomy, point angle, drilling machine types, drill speeds and feeds, reaming and countersinking.

19%

Lathe Operations

Lathe construction and parts, chucks and centres, turning, facing, taper turning, knurling, thread cutting and cutting-speed calculations.

22%

Milling Operations

Milling machine types and parts, cutters and arbors, indexing, plain and face milling, slot cutting, gear cutting and work-holding on the mill.

Shaper Machine Operations

Shaper construction, quick-return mechanism, stroke adjustment, tool geometry and shaping flat, angular and slotted surfaces.

11%

Precision Grinding Operations

Grinding-wheel specification and safety, cylindrical, surface and tool-cutter grinding, wheel dressing and balancing.

How to Pass the BTEB Machinist Exam

What You Need to Know

Passing score: BTEB sets the competency standard, generally requiring a pass in both theory and practical components; written-paper thresholds of around 40-50% are commonly reported, but the definitive standard depends on your level and institute.
Assessment: Competency-based assessment combining a theory paper (multiple-choice and short written questions) with a separate supervised practical machine-shop test, administered by BTEB through affiliated technical institutes. Question counts vary by level (Basic/NSC).
Time limit: Theory papers typically run a few hours, with the practical machine-shop competency test conducted separately under supervision. Confirm exact timing with your institute.
Exam fee: Registration and assessment fees are set by BTEB and the enrolling institute and are government-subsidised but change periodically. Confirm the current amount with your institute.

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

BTEB Machinist Study Tips from Top Performers

1Master the lathe and milling machine parts and terminology first, because most other operations (turning, facing, indexing, slotting) are described using that vocabulary and questions on those two machines carry the most weight.

2Learn to convert between units and calculate cutting speed, feed and RPM confidently, since workshop math underpins drilling, turning and milling questions and is tested directly as well as embedded in scenario questions.

3Do not neglect bench work, safety and precision measurement basics, such as correct use of a try-square, vernier caliper, micrometer, grinding-wheel safety checks and PPE, since these are easy, frequently tested marks.

Frequently Asked Questions

Who awards the Machinist / Machine Shop Practice certificate and what does it cover?

The Bangladesh Technical Education Board (BTEB) awards the National Skill Certificate in Machinist / Machine Shop Practice through affiliated technical and vocational institutes. It certifies competence in bench work, lathe, milling, shaper and grinding operations, covering both trade theory and a hands-on practical assessment.

Is the BTEB Machinist assessment only multiple-choice?

No. BTEB uses competency-based assessment that combines a theory paper (with multiple-choice and short written questions) and a separate supervised practical test on real machine tools. This free bank focuses on the theory knowledge with 100 multiple-choice questions to help you revise.

How many questions are in this practice bank and what topics does it cover?

This free bank has 100 multiple-choice questions covering workplace safety and math, technical drawing and measurement, bench work and fitting, drilling operations, lathe operations, milling operations, shaper machine operations and precision grinding operations.

What pass mark do I need for the BTEB trade-theory exam?

BTEB sets the competency standard, which generally requires passing both the theory and practical components. Written-paper thresholds of around 40-50% are commonly reported, but you should confirm the definitive standard for your level with your enrolling institute.