BHM 153

Housekeeping Operations II

TU BHM · Semester 2 · Recent BHM syllabus series

Requirement
required
Credits
3
Past papers
1 papers

Past exam papers

Complete papers are arranged by exam year (BS / AD).

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Tribhuvan University

Faculty of Management

Office of the Dean

2080 BS / Regular Examination

Course: BHM 153 · Housekeeping Operations II

Level: Bachelor of Hotel Management (BHM) · Semester 2

Full Marks: 60

Time: 3 hrs.

Candidates are required to give their answers in their own words as far as practicable. Figures in the margin indicate full marks.

Section A

Brief Answer Questions. Attempt ALL questions. (5 × 2 = 10)

[5*2=10]
  1. Define “Par Stock” in hotel linen management and explain why maintaining an adequate par level is essential.

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    Concept of Linen Par Stock

    Par Stock (Periodic Automatic Replacement) is the minimum quantity of clean, serviceable linen required to equip all hotel guestrooms and banquet operations at full capacity, while maintaining a sufficient buffer in active laundry wash cycles, linen room storage, and floor pantries.

    Importance:

    Prevents catastrophic room turnaround delays during peak occupancy, avoids rushed under-washed laundering, and prolongs linen lifespan through proper rest rotation (24-hour resting period between laundering).

  2. Compare pure Cotton and Poly-Cotton blends for hotel bed linen fabrication.

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    100% Pure Cotton vs. Poly-Cotton (e.g., 60/40) Blends

    • 100% Cotton: Outstanding breathability, superior softness, high absorbency, hypoallergenic, and luxurious hand feel; however, it wrinkles severely, absorbs stains easily, shrinks, and has lower durability under heavy commercial washing.
    • Poly-Cotton Blend (60% Cotton / 40% Polyester): Excellent tensile strength, tear resistance, faster drying times (lower energy costs), minimal wrinkling, reduced shrinkage, and lower replacement cost; slightly less cool and absorbent than pure cotton.
  3. Explain the purpose of the “Souring and Softening” stage in the commercial hotel laundry wash cycle.

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    Purpose of Souring and Softening in Laundry

    • Souring (Acid Neutralization): A mild laundry acid (sour, such as fluorosilicic or citric acid) is introduced to neutralize residual alkaline detergents and chlorine bleach, restoring the linen pH to skin-compatible levels (pH 5.5–6.5) to prevent yellowing (scorching) during ironer pressing and skin irritation.
    • Softening: Cationic fabric softeners lubricate cotton fibers, eliminating static cling, imparting a fluffy tactile feel, and speeding up high-speed calender ironer feed.
  4. State two fundamental principles of Western triangular flower arrangement practiced in hotel lobbies.

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    Principles of Western Triangular Flower Arrangement

    1. Symmetrical Balance & Proportion: The arrangement features a distinct central vertical apex stem flanked by two equidistant horizontal base stems forming an equilateral or isosceles triangle, scaled to 1.5 times the height/width of the vase container.
    2. Focal Point (Center of Interest): Dominant, vibrant primary blooms (e.g., large Lilies, Anthuriums, or Roses) are positioned low near the rim where the lines converge to draw the viewer"s eye.
  5. List and explain the “3 E"s of Safety” applied in housekeeping accident prevention.

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    The 3 E"s of Safety

    1. Engineering: Designing safe physical workstations, ergonomic equipment (lightweight vacuum cleaners, hydraulic linen trolleys), and non-slip floor tiles.
    2. Education: Continuous staff training in chemical handling (MSDS), correct lifting posture (bending knees, not back), and fire emergency procedures.
    3. Enforcement: Enforcing mandatory compliance with safety regulations, using personal protective equipment (PPE), and penalizing safety protocol violations.

Section B

Short Answer Questions. Attempt any SIX questions. (6 × 5 = 30)

[6*5=30]
  1. Explain the location criteria, layout, and daily linen exchange procedure of a central hotel Linen Room.

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    Linen Room Layout & Exchange Procedure

    Location Criteria:

    Must be centrally located near service elevators with direct access to the laundry facility, secure from theft, dry, well-ventilated, pest-free, and away from kitchen steam and fumes.

    Layout Sections:

    • Counter for clean/dirty linen exchange with Dutch split doors.
    • Elevated slatted wooden/metal storage shelves (minimum 15 cm off floor and 50 cm from ceiling).
    • Mobile wheeled linen sorting hampers, inspection tables, and condemnation storage.

    Daily Linen Exchange Procedures (Clean for Dirty System):

    1. Floor attendants count and bag soiled linen from guestrooms into colored hamper bags.
    2. Soiled linen is brought to the Linen Room counter and tallied against the floor linen control sheet.
    3. The linen keeper issues identical quantities of clean linen on a strict one-for-one replacement basis (Clean for Dirty), updating the ledger to prevent inventory loss.
  2. Describe the successive stages of a commercial hotel laundry wash formula from Flush to Final Extraction.

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    Stages of a Commercial Laundry Wash Formula

    1. Flush (1–2 min, 35°C–40°C): High-level bath to loosen and dissolve surface soils and water-soluble stains.
    2. Break (4–6 min, 50°C–60°C): High-alkaline bath loosening stubborn organic grease.
    3. Suds (Main Wash) (8–10 min, 65°C–75°C): Low-water level wash with detergents and surfactants emulsifying oils.
    4. Bleach (5–7 min, 65°C): Sodium hypochlorite (for whites) or oxygen bleach to remove organic pigments and sanitize.
    5. Rinses (3–4 cycles of 2 min each): Successive high-level fresh water baths diluting and carrying away suspended soils and detergent residues.
    6. Sour & Softener (4–5 min, 35°C–40°C): Neutralizing alkali residues to pH 6.0 and softening fibers.
    7. Final Extract (6–8 min): High-speed centrifugal spinning (800–1000 RPM) removing up to 50% retained water before drying or flatwork ironing.
  3. Discuss the selection criteria for hotel upholstery fabrics and window draperies, highlighting blackout lining and fire retardancy standards.

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    Selection Criteria for Hotel Upholstery & Draperies

    1. Abrasion Resistance (Martindale / Wyzenbeek Test): Upholstery fabrics must withstand heavy commercial friction (> 30,000 double rubs for heavy-duty hotel lobby furniture).
    2. Fire Retardancy (FR): Fabrics must comply with strict fire codes (e.g., BS 5852 / NFPA 701) by utilizing inherently flame-retardant synthetic yarns (Trevira CS) or chemical flame-retardant topical coatings that self-extinguish when exposed to flame.
    3. Blackout Lining (Triple-Pass Coated): Guestroom window draperies require 100% light-blocking blackout lining to ensure total darkness for jet-lagged international guests, while simultaneously providing thermal insulation and acoustic sound dampening from street noise.
  4. Describe the conditioning and post-harvest care methods required to maximize the vase life of fresh cut flowers in hotel floral displays.

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    Conditioning & Care of Fresh Cut Flowers

    1. Underwater Stem Cutting: Cut 2–3 cm off stem ends at a sharp 45-degree angle under lukewarm water to prevent air bubbles from entering vascular xylem vessels (embolism).
    2. De-foliation: Strip all lower foliage and thorns that would sit submerged below the water level to prevent rapid bacterial rotting and water foulness.
    3. Floral Preservative Solutions: Add commercial floral preservative containing: (a) Sucrose/Glucose (nutrient energy for blooming), (b) Bactericide (inhibits bacterial proliferation), and (c) Acidifier (lowers water pH to 3.5–4.5 for rapid stem uptake).
    4. Environmental Placement: Position completed arrangements away from direct sunlight, air conditioning drafts, radiators, and ripening fruit bowls (which emit ethylene gas, accelerating petal wilting).
  5. Explain Housekeeping Inventory Control procedures: Area Inventory Lists, Frequency Schedules, and Annual Physical Stock-Taking.

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    Housekeeping Inventory Control Mechanisms

    1. Area Inventory List (AIL): A comprehensive master checklist recording every non-recycled item (soaps, pens) and recycled asset (furniture, lamps, linen) permanently allocated to each specific hotel room or public zone.
    2. Frequency Cleaning Schedules: Calendars dividing cleaning tasks into daily routines, weekly deep cleans, monthly window washes, and semi-annual carpet shampooing.
    3. Annual / Bi-annual Physical Stock-Taking:
      • A complete physical headcount of all hotel assets and linens across all rooms, floor pantries, laundry, and central linen storage on a single designated low-occupancy day.
      • Variances between book inventory and physical count are calculated to establish shrinkage/loss rates and trigger purchase replacements.
  6. Classify fire hazards into their international classes (Class A, B, C, D, and K) and specify the appropriate fire extinguisher type for each.

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    Fire Classification & Extinguisher Selection

    Fire Class Fuel Source Primary Extinguisher Type
    Class A Ordinary combustibles (wood, paper, linen, cloth, plastics). Water (APW) or ABC Dry Chemical Powder (cools and smothers).
    Class B Flammable liquids and gases (petrol, diesel, paints, solvents, kerosene). Foam (AFFF), CO2 Gas, or ABC Dry Powder (cuts oxygen supply).
    Class C Energized electrical equipment (appliances, wiring, switchboards, motors). Carbon Dioxide (CO2) or Clean Agent Halotron (non-conductive, leaves no residue).
    Class D Combustible metals (magnesium, sodium, potassium, titanium). Special Dry Powder (Class D) (metal salt flux powder).
    Class K (Class F in Europe) Cooking media in commercial kitchens (cooking oils, animal fats, deep fryers). Wet Chemical Extinguisher (Potassium acetate/citrate) (saponifies fat into cooling soap foam).

Section C

Comprehensive / Analytical Questions. Attempt any TWO questions. (2 × 10 = 20)

[2*10=20]
  1. Practical Calculation: A 200-room luxury hotel with King-size beds (each bed requiring 2 bed sheets) maintains an operational Par Level of 4.0 pars of bed sheets. Calculate: (a) Total bed sheets required for 1 full par, (b) Total bed sheets required for the hotel"s 4.0 par stock, and (c) Detail the physical distribution and circulation allocation of these 4.0 pars across the property.

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    Practical Par Stock Calculation (200-Room Hotel)

    (a) Sheets Required for 1 Full Par:

    • Each room has 1 King bed requiring 2 sheets (1 bottom sheet + 1 top/duvet-encased sheet).
      1 Par=200 rooms×2 sheets per bed=400 bed sheets\text{1 Par} = 200\text{ rooms} \times 2\text{ sheets per bed} = 400\text{ bed sheets}

    (b) Total Sheets for 4.0 Par Stock:

    Total Required Sheets=4.0 pars×400 sheets/par=1,600 bed sheets\text{Total Required Sheets} = 4.0\text{ pars} \times 400\text{ sheets/par} = 1,600\text{ bed sheets}

    (c) Physical Distribution & Circulation Allocation of 4.0 Pars:

    Par Unit Number of Sheets Physical Location & Status
    Par 1 (Dressing Rooms) 400 Currently dressed on beds in guestrooms (in active guest use).
    Par 2 (Floor Pantries) 400 Clean, folded stock stored in floor linen cupboards for immediate morning room turnarounds.
    Par 3 (In Laundry Cycle) 400 Soiled linen in transit, active wash/extract cycles, and ironer flatwork pressing.
    Par 4 (Central Storage & Resting) 400 Clean stock resting on central linen room shelves (resting for 24 hours to relax cotton fibers and extend lifespan) plus emergency buffer.
    Total Circulating Stock 1,600 100% Full 4.0 Par Inventory
  2. Case Study: As the Executive Housekeeper of a proposed new 300-room city hotel, prepare a comparative feasibility analysis between establishing an On-Premises Laundry (OPL) versus outsourcing linen to an off-site Commercial Contract Laundry. Evaluate equipment capital expenditure, water/steam utility consumption, linen lifespan, turnaround control, and hygiene reliability.

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    Feasibility Analysis: On-Premises Laundry (OPL) vs. Contract Laundry

    1. Direct Comparison Matrix:

    Evaluation Factor On-Premises Laundry (OPL) Off-site Commercial Contract Laundry
    Capital Investment (CapEx) High initial capital required for industrial washers, dryers, steam boiler, and flatwork ironers (approx. NPR 25M–35M). Zero machinery capital cost; only transport hampers and delivery vehicles needed.
    Operating Cost (OpEx) Ongoing direct costs for water, electricity, steam, gas, wash chemicals, and dedicated laundry labor. Predictable per-kg or per-piece billing charges negotiated by contract.
    Turnaround Speed & Control Complete internal control; rapid 2-hour emergency linen turnaround during high occupancy spikes. Dependent on delivery truck schedules, road traffic, and commercial plant queues.
    Linen Longevity & Quality Higher longevity; wash chemistry, gentle temperature, and sorting are strictly monitored internally. Commercial plants frequently use aggressive bleaching and high heat, increasing linen wear and tear.
    Required Linen Par Level Requires lower par level (3.5 to 4.0 pars) due to immediate on-site cycling. Requires higher par level (4.5 to 5.5 pars) to buffer transit times and off-site delays.

    2. Strategic Recommendation for a 300-Room Luxury Hotel:

    For a high-tier 300-room luxury hotel with banquet facilities, an On-Premises Laundry (OPL) is strongly recommended. The higher initial CapEx is paid off within 3.5 years through lower replacement costs of damaged linens, lower total par stock investment, and the ability to maintain impeccable 5-star linen crispness and immediate guest valet turnaround.