BTEB Refrigeration & AC Exam case studies
BTEB Refrigeration & AC Exam · Put your knowledge to work in context.
The BTEB Refrigeration & Air Conditioning credential refers to the assessment side of the refrigeration and air conditioning trade programmes administered under the Bangladesh Technical Education Board (BTEB), the government board whose website lists result services for Diploma, HSC and SSC level examinations, short courses and other e-services. Candidates are typically trainees and students in technical school, polytechnic or short-course programmes who need to demonstrate competence before progressing or entering employment in the refrigeration and air conditioning trade. The BTEB Refrigeration & AC Exam case studies are 4 cases and about 3,262 words.
1Walk-in Freezer Pull-Down After Compressor Replacement
A 6 m x 4 m x 2.7 m walk-in freezer (product storage, -18 C design) has just received a replacement semi-hermetic compressor of the same nominal capacity as the failed unit. The technician charges R-404A by weight to the nameplate value plus 5 percent, then starts the system.
808 words, about 4 min2Split AC Cooling Complaint in a South-Facing Office
A 5.5 kW nominal split system serves a 45 m2 south-facing office with 12 occupants and 8 desktop computers. The client complains it 'never gets cold' on summer afternoons.
864 words, about 4 min3Commissioning a New Cold Room with a Remote Condensing Unit
You are commissioning a new 4 m x 3 m x 2.5 m chiller cold room (design 2 C, product dairy) with a remote air-cooled condensing unit and a unit cooler. The installing contractor has completed pipework, pressure-tested at 25 bar with nitrogen, and evacuated to 500 microns, holding for 20 minutes.
815 words, about 4 min4Rooftop Unit Tripping on High Pressure During Peak Load
A packaged rooftop unit serving a retail floor trips its high-pressure switch every afternoon around 15:00 and resets itself by evening. The unit is R-410A, three-phase, with a single condenser fan and a fixed-speed compressor.
775 words, about 4 min