Fundamentals As Energy Manager

Which of the following is a mandatory requirement before operating a pressure vessel in Malaysia?

• Certificate of Fitness issued by DOSH

• Certificate of Inspection from SIRIM

• Operating License from CIDB

• Approval from the Energy Commission

When is it mandatory to involve a Safety and Health Officer (SHO) in an energy audit?

• If more than two REMs are involved

• Only if the audit takes more than two weeks

• When LED lighting is being replaced

• For projects involving boilers, pressurized systems, or gas lines

What is the main purpose of the Occupational Safety and Health (Amendment) Act 2022 (OSHA 2022)?

• To enhance safety obligations by focusing on risk prevention and competence in the workplace

• To license energy managers under the Energy Commission

• To increase electricity tariffs for industrial users

• To replace the Electricity Supply Act 1990 with updated energy efficiency measures

What is the key purpose of performing HIRARC during energy efficiency projects?

• To estimate ROI and payback period

• To reduce utility tariffs

• To comply with MS 1525

• To identify hazards and implement risk controls

Which safety system is used to ensure electrical equipment is not accidentally energized during maintenance?

• Confined Space Entry Permit

• Emergency Response Plan

• Electrical Fire Suppression System

• Lockout-Tagout (LOTO)

What method is recommended to assess the impact of variable data on energy consumption?

• Regression analysis

• Pareto chart

• Correlation matrix

• Thermal scanning

A commercial building consumes 45,000 kWh of electricity over a 12-month period. what is the equivalent energy consumption in GJ?

• 135.0 GJ

• 162.0 GJ

• 90.0 GJ

• 126.5 GJ

Which of the following measures is most commonly used to improve power factor in an electrical system?

• Increasing the number of transformers

• Using low-voltage distribution

• Installing capacitor banks

• Installing energy meters

A boiler consumes 100 liters/hour of diesel with a calorific value of 43 MJ/kg and a diesel density of 0.85 kg/liter. What is the energy input to the boiler in MJ/hour?

• 3605 MJ/h

• 3725 MJ/h

• 3650 MJ/h

• 3655 MJ/h

Answer explanation

Mass flow rate = 100 L/h × 0.85 kg/L = 85 kg/h
Energy input = 85 kg/h × 43 MJ/kg = 3655 MJ/h

An industrial facility operates a 15 kW motor for 10 hours per day, 26 days a month. The electricity cost is RM0.45 per kWh. What is the monthly electricity cost of running this motor?

• RM 1800

• RM 1755

• RM 1290

• RM 1750

Answer explanation

Energy consumed per month = 15 kW × 10 h/day × 26 days = 3900 kWh
Cost = 3900 × 0.45 = RM 1755