Maintenance Engineering MCQs 2026

Maintenance engineering aims to

1. Amaximize equipment availability and reliability at optimal cost✓
2. Bmaximize breakdown frequency✓
3. Celiminate all inspections✓
4. Dignore spare parts✓

Breakdown maintenance (corrective) is

1. Ascheduled before any fault signs✓
2. Brepair after failure occurs✓
3. Conly predictive with sensors always✓
4. Donly redesign✓

Preventive maintenance (PM) is performed

1. Aonly after catastrophic failure✓
2. Bon scheduled time or usage intervals✓
3. Conly when operator guesses✓
4. Dnever documented✓

Predictive maintenance (PdM) uses

1. Acondition monitoring to predict failure before breakdown✓
2. Bonly fixed calendar without measurement✓
3. Conly run-to-failure always✓
4. Donly painting equipment✓

Infant mortality failures often due to

1. Aonly end-of-life wear✓
2. Bonly random stable period always✓
3. Conly proper commissioning✓
4. Dinstallation errors, defects or burn-in needs✓

Reliability block diagram models

1. Aonly financial accounting ledger✓
2. Bonly soil chemistry✓
3. Conly textile weave pattern✓
4. Dsystem reliability from component reliabilities✓

Weibull analysis in reliability uses

1. Aonly colour matching paint✓
2. Bonly musical rhythm✓
3. Cfailure time data to characterize distribution✓
4. Donly inventory ABC only✓

Planning shutdown turnaround maintenance

1. Acoordinates major inspection and overhaul during planned outage✓
2. Bonly surprise breakdown always✓
3. Conly during peak production always✓
4. Donly without permits✓

Permit-to-work system ensures

1. Aanyone enters vessel freely✓
2. Bhazardous maintenance tasks controlled and authorized✓
3. Cno lockout needed ever✓
4. Donly verbal OK without record✓

Lockout-tagout (LOTO) prevents

1. Aonly improves motor speed✓
2. Baccidental energization during maintenance✓
3. Conly lubricates bearings✓
4. Donly cleans filters✓

Bearing failure modes include

1. Aspalling, brinelling, fretting and lubrication failure✓
2. Bonly improved roundness always✓
3. Conly lower temperature always beneficial unlimited✓
4. Donly magnetic levitation always✓

Belt drive maintenance includes

1. Aonly increasing misalignment✓
2. Bonly removing guards permanently✓
3. Ctension check and alignment inspection✓
4. Donly over-tension until snap✓

Chain drive lubrication and tension prevent

1. Aonly electrical arcing✓
2. Bonly water hammer✓
3. Conly boiler scale✓
4. Dpremature elongation and sprocket wear✓

Corrosion under insulation (CUI) is managed by

1. Aonly ignoring insulation exterior✓
2. Bonly increasing moisture trapping✓
3. Conly removing all inspection✓
4. Dinspection ports, coatings and moisture barriers✓

NDT during maintenance turnaround may include

1. Aonly visual from 100 m distance only✓
2. Bonly weighing crane hook✓
3. CUT, RT and MPI on critical welds✓
4. Donly colour survey✓

Calibration maintenance of instruments ensures

1. Ameasurement accuracy for control and safety✓
2. Bonly cosmetic dial glass clean✓
3. Conly increasing random error✓
4. Donly removing labels✓

Energy audit in maintenance context finds

1. Aonly cricket energy scores✓
2. Bwaste in compressed air leaks and inefficient drives✓
3. Conly social media usage✓
4. Donly paper clip inventory✓

Reliability KPI for plant may track

1. Aonly canteen meal count✓
2. Bnumber of unplanned shutdowns per year✓
3. Conly parking slots✓
4. Donly font size on reports✓

Maintenance budget includes

1. Alabour, spares, contractors and tools✓
2. Bonly marketing advertising exclusively✓
3. Conly raw material purchase for production exclusively without MRO✓
4. Donly dividends to shareholders exclusively✓

Skills matrix for maintenance team tracks

1. Aonly shoe sizes✓
2. Bonly blood groups for medical only unrelated✓
3. Ccompetencies per trade and equipment type✓
4. Donly vehicle license plates✓

Autonomous maintenance step in TPM has operators

1. Aonly external agency exclusively always✓
2. Bonly discard all tools✓
3. Conly increase breakdowns✓
4. Dclean, inspect and lubricate their machines✓

Five whys in maintenance investigation asks

1. Aonly one question always sufficient✓
2. Bonly who to blame without analysis✓
3. Conly when to sell machine✓
4. Dsuccessive why to reach root cause✓

Pakistan industrial maintenance in textiles and cement faces challenges of

1. Aunlimited automatic zero downtime always✓
2. Bno need for lubrication ever✓
3. Cskill shortage, spare lead time and energy cost✓
4. Donly manual typewriters✓

Predictive maintenance adoption in Pakistan is growing with

1. Avibration sensors and CMMS in larger plants✓
2. Bzero technology use nationwide✓
3. Conly paper logs exclusively forever all plants✓
4. Donly outsourced foreign operators exclusively always✓

Safety in maintenance work on Pakistani factory floor requires

1. Ano helmets to save cost always✓
2. BPPE, LOTO and compliance with labour safety regulations✓
3. Cignore confined space rules✓
4. Dhot work without fire watch✓

Wear-out zone on bathtub failure curve shows

1. Adecreasing failures always✓
2. Bconstant zero failures✓
3. Cincreasing failure rate at end of life✓
4. Donly infant mortality✓

Overhaul versus repair: overhaul is

1. Acomprehensive restoration to near-new condition✓
2. Bonly tightening one bolt✓
3. Conly wiping exterior dust✓
4. Donly changing label✓

Run-to-failure strategy acceptable for

1. Anuclear safety valve exclusively✓
2. Blow-cost non-critical redundant items✓
3. Caircraft engine turbine blades✓
4. Dhigh-pressure boiler safety✓

Condition-based maintenance triggers work when

1. Aonly calendar date regardless of condition✓
2. Bmonitored parameter exceeds threshold✓
3. Conly random choice✓
4. Donly machine colour changes✓

Failure mode effects analysis (FMEA) ranks

1. Aseverity, occurrence and detection of failure modes✓
2. Bonly paint gloss✓
3. Conly office carpet colour✓
4. Donly canteen menu✓

Root cause failure analysis (RCFA) in maintenance seeks

1. Aonly temporary patch without investigation✓
2. Bonly blame operator without data✓
3. Cunderlying cause of repeated failures✓
4. Donly increase spare cost✓

CMMS stands for

1. ACentral Motor Monitoring Standard✓
2. BCompressed Maintenance Manual Set✓
3. CChemical Material Management System✓
4. DComputerized Maintenance Management System✓

Work order in CMMS documents

1. Aonly sales invoice to customer✓
2. Bonly university transcript✓
3. Conly passport application✓
4. Dmaintenance task, labour, parts and completion status✓

Bills of materials for maintenance links

1. Aonly employee birthdays✓
2. Bonly cricket scores✓
3. Cparts to equipment assemblies for planning✓
4. Donly weather forecast✓

Spare parts inventory ABC in maintenance prioritizes

1. Acritical infrequent high-value parts differently than consumables✓
2. Bonly alphabetical part numbers✓
3. Conly paint colours✓
4. Donly supplier logos✓

Balancing rotating parts reduces

1. Aonly electrical harmonics without rotation✓
2. Bvibration forces on bearings and structure✓
3. Conly static weight of base✓
4. Donly oil viscosity✓

Alignment of coupled shafts prevents

1. Aonly improves paint adhesion✓
2. Bvibration, bearing wear and coupling failure✓
3. Conly electrical power factor✓
4. Donly water hardness✓

Lubrication schedule too infrequent causes

1. Aaccelerated wear and overheating✓
2. Binfinite bearing life✓
3. Clower temperature always beneficial✓
4. Dzero friction✓

Grease versus oil lubrication: grease suits

1. Aonly high-speed turbine bearings always needing flow✓
2. Bonly open gears needing bath always✓
3. Csealed-for-life bearings and hard-to-reach points✓
4. Donly hydraulic systems✓

Lubrication purpose in machinery is to

1. Aincrease friction deliberately always✓
2. Bonly clean exterior paint✓
3. Conly increase electrical resistance✓
4. Dreduce friction, wear and heat between surfaces✓

Ultrasonic testing in maintenance listens for

1. Aonly visible light colour✓
2. Bonly DC voltage only✓
3. Conly room temperature only✓
4. Dhigh-frequency leaks and bearing defects✓

Oil analysis (wear debris, viscosity) indicates

1. Aonly external paint rust only✓
2. Bonly operator skill✓
3. Cinternal machine wear and contamination✓
4. Donly belt colour✓

Infrared thermography in PdM finds

1. Aabnormal hot spots in electrical and mechanical equipment✓
2. Bonly internal cracks without surface temperature change always✓
3. Conly sound frequency✓
4. Donly weight of part✓

Vibration analysis detects

1. Aonly chemical pH of coolant✓
2. Bbearing defects, imbalance and misalignment early✓
3. Conly paint colour fading✓
4. Donly room humidity office✓

OEE in maintenance context reflects

1. Aonly office attendance✓
2. Bequipment losses from availability, performance and quality✓
3. Conly fuel import cost✓
4. Donly river flow✓

TPM (Total Productive Maintenance) involves

1. Aoperators and maintenance staff improving equipment effectiveness✓
2. Bonly external contractors exclusively✓
3. Conly top management memos✓
4. Donly selling old machines✓

Availability A = MTBF / (MTBF + MTTR) represents

1. Aonly quality defect rate✓
2. Bonly inventory turns✓
3. Cproportion of time equipment is operable✓
4. Donly profit margin✓

MTTR (Mean Time To Repair) measures

1. Atime between failures✓
2. Bmachine design life only✓
3. Cwarranty period only✓
4. Daverage time to restore equipment after failure✓

MTBF (Mean Time Between Failures) measures

1. Aonly repair duration✓
2. Bonly calendar year length✓
3. Conly operator shift hours payroll✓
4. Daverage operating time between failures for repairable items✓

Reliability-centered maintenance (RCM) analyzes

1. Aonly aesthetic painting schedule✓
2. Bonly office cleaning✓
3. Cfailure modes and consequences to choose maintenance tasks✓
4. Donly marketing plan✓