SHEM MCQ SAMPLE 1 N 2 AND BRIGHTSPACE QUIZ

A part-time Environment Control Officer (ECO) is required at a site which has a contract sum of :

Which of the following statement is true about a part-time or full-time ECO?

In the Code of Practice for Pollution Control, which of the following item in trade effluent, that once exceeding the allowable limits may be allowed to discharge into a public sewer subject to payment of trade effluent tariff ?

Fuel burning equipment installed at industrial premises that are sited within 100m of any residential building shall use gaseous fuel or diesel with sulphur content of not more than _________ by weight.

In controlling the air pollution, a chimney height shall be at least _____ above roof level of the factory building or _______ measured from the ground level whichever is higher.

. In some construction activities such as piling operation, the noise level at close range can reach a level that can cause instantaneous deafness if the ears are unprotected. What is this noise level?

The physiological effects of noise include changes in: (i) respiratory system (ii) cardiovascular system (iii)muscular system (iv)neuroendocrine system

A site environmental control programme should include measures to prevent:

Which of the construction machinery generates a higher noise level in the construction industry?

Which of the following is not the psychological effect of noise?

2. The following measures can be taken to prevent earth or construction waste littering from vehicles: (i) Do not overload lorry transporting earth or construction waste. (ii) Construct vehicle wash bay for washing of vehicles before they leave the site. (iii) Cover all vehicles carrying earth or refuse. (iv) Record all vehicle movement

3. In noise attenuation by distance, every doubling of the distance from the noise source would result a reduction of how many dBA?

. The total suspended solids in the water discharged from a construction site silt-trap should not be more than:

The trade effluent discharged into a public sewer must not include:(i) Calcium carbide (ii) Refuse (iii) Pesticides, insecticides (iv) Rainwater, storm water

. The hierarchy of noise attenuation should be:

One of the ways to prevent mosquitoes breeding at sites is to carry out check for stagnant water at least ________ a week

Construction materials storage at sites should be elevated at least _____ cm above the ground so that inspection and check can be carried out beneath the stockpile.

9. Inspection and check for rodent burrows should be carried out:

In noise measurement, LAeq, 6 hours = 60 dBA means:

A chimney of an approved height shall be provided for the safe dispersion of flue gases from fuel burning equipment. The minimum height shall be ____m measured from ground level or at least ___m above roof level of the factory building whichever is the higher.

Under Sewerage and Drainage Act, occupier of a construction worksite is required to engage_______________ (QECP) to review and resubmit the earth control measures (ECM) as the work progress.

For piling operation at a construction site, the normal noise level at close range can reach a threshold level of pain if the ears are unprotected. What is this noise level?

Exhaust gases from the pollution control equipment shall be emitted into the atmosphere through a discharge stack of a height approved by _______________Department to ensure safe dispersion.

One of the ways to prevent mosquitoes breeding at sites is to carry out check for stagnant water at least ________ a week.

Where the contract sum in relation to a construction site is more than $___ million but not exceeding $____ million, the occupier of the construction site shall employ a competent person to act as an Environmental Control Officer in the construction site on a _______ basis

Under the Environmental Public Health (Registration of Environmental Control Officers) Regulations, ECO is required to report and submit Site Environmental Control Report to occupier of the construction site once every___ weeks, on the__ and ___ of the month.

Before commencement of construction and earthworks, site owners need to engage a _______________to plan, design, supervise and review a system of earth control measures to meet the requirements cited in the Code of Practice on Surface Water Drainage and to comply with the _________ Act.

_______________containing Biochemical Oxygen Demand (BOD) should not exceed _______mg per litre if it is to be discharged into a public sewer.

__________ containment facilities shall be provided for storage tanks containing oils and _________to contain accidental release of the entire content of the largest storage tank.

Under effective Earth Control Measures, silty water at holding sump must be treated and clear the sump within ___ hours after rain so as to prepare for the next rain event.

At the construction site canteen, it is advisable to store food such as rice, vegetables and meat in a rodent-proof cabinet and at least ____ cm above the ground.

Under the Environmental Protection and Management (Control of Noise at Construction Sites) Regulations, Correction Factor is an adjusted value for the maximum permissible noise level obtained by ___________ the correction factor corresponding to the difference between the maximum permissible noise level in the First and Second Schedules and the background noise level, set out in the Table below, to the _________ of the 2 noise levels.

Which of the following shows the correct sequence of noise level due to different type of activities at a distance of 15m, from the lowest noise level to highest level? I: Impact Pile Drivers T: Tractors J: Jack Hammers Drills P: Water Pump

After passing the ECO training course, all qualified ECOs are required to register with _____ before they can start work. A registration fee of $120 is payable and a Certificate of Registration valid for _____ years will be issued.

NEA has also implemented a rule prohibiting work on Sundays and Public Holidays (PH) for construction sites located within _____m away from residential premises and noise sensitive premises. From 1 September 2011, no work allowed from 10.00pm on Saturday/Eve of PH to ______am on the following Mon/day after the PH.

Which of the following is NOT CORRECT about duties and responsibilities of Environmental Control Officer?

. Under the ________________________ Act, construction noise is regulated to ensure that residents living in the vicinity of construction sites are not unduly affected.

Environmental Control Officer must master four basic management skills in order to have any success in his/her role as effective supervisor of environmental issues. These four basic skills, in sequence of application, are:

. _____________ is required to notify Pollution Control Department before soil treatment is carried out. Notification should be made as early as possible and not later than _____ working days of the date of the first soil treatment.

All qualified ECOs are required to register with NEA before they can work as ECOs at construction worksite. A _______________ valid for 3 years will be issued and a registration fee of ______ is payable.

The Environment Pollution Control Act, which came into operation on 1 Apr 1999 was amended to the _______________________________ Act on 1 Jan 2008, to provide for the protection and management of the environment and resource conservation.

On the certificate of registration for Environmental Control officer (ECO), it is stated that the person stated overleaf has been registered by Director-General of __________________under the Environmental Public Health (_________________) Regulations 2021.

To ensure that ECOs(SCS) remain updated on their knowledge on the environmental topics, NEA requires all ECOs(SCS) to possess a course certificate of performance that is within the recent ____ years prior to the date of licence application/ renewal

Which of the following Act states that “The Director-General may, by notice in writing, require the owner or occupier of any construction site to set up equipment to measure and record the level of noise emitted from his construction site over such duration as may be directed by the Director-General; and to submit the records of the noise level readings, including all relevant facts which may influence the values of the noise level readings.”?

Under ________________ Act, the Director General may, by notice in writing, requires the owner or occupier of any premises to provide, construct or reconstruct at the expense of the owner or occupier, dustbins or other convenient receptacles to be placed in appropriate locations within the premises of the owner or occupier.

Which of the following Act states that “No person shall drop, deposit or throw any refuse or any other matter or thing in any channel, drain, lake, reservoir, river, stream or watercourse or upon the bank of any of the same or in any part of the sea abutting on the foreshore.”?

Which of the following Act states that “The Director-General shall not register any pesticide or vector repellent unless he is satisfied that the pesticide or vector repellent conforms to the prescribed standards.”?

Which of the following Act states that “the Director-General may, if he considers necessary, himself carry out such spraying or fogging and recover any costs or expenses incurred by him from the owner or occupier of the premises, vessel or aircraft or pond, well, pool or other body of water, as the case may be.”?

Dengue fever cannot be spread directly from person to person. It is transmitted/spread to humans by the bite of an infected ________ mosquito.

A dengue cluster is defined as “2 or more dengue fever cases within ____ metres of their respective workplace/residential addresses and within __ days of their respective onset dates

Which of the following is NOT correct about Chikungunya Virus?

All sites must carry out the zoning / sectorizing method to systematically comb through and ensure complete coverage of the entire site within 5 to 7 days by: Dividing your site into not more than __ zones.

Mosquitoes undergo complete metamorphosis. They pass through four successive, structurally different stages of development. Which of the following is CORRECT sequence?

__________________ conducts toolbox meeting and briefing to workers at the start of the workday on the importance of housekeeping and raise awareness on vectors and the diseases they spread.

____________________ is to search for and destroy both breeding and potential breeding grounds, identify conditions/situations which will lead to the creation of potential breeding grounds; and to carry out housekeeping and rectification works on the entire site over a maximum period of 7 or 5 days.

Which of the following is NOT the duty of Pest Control Operator (PCO)?

Thermal fogging is suitable for the following situations except:

The following control measures can be integrated to effectively prevent mosquito breeding on site except:

Sound is a __________ wave that is an oscillation of pressure transmitted through medium (solid, liquid or gas), therefore it cannot travel through vacuum.

The speed of sound in air depends on ____________, as the _________increase, sound travels faster.

Which of the following is NOT CORRECT about physical properties of Sound?

Human ears are able of detecting sound pressure from ___ μPa to____ Pa.

_____________________ Uninterrupted sound level with little variation in level (less than 5 dB) during period of observation/ measurement

Noise estimation should be carried out as part of the noise __________________to prepare for any noise mitigation measures required for the project to carry out its activities without __________ the permissible construction noise limits and minimising noise dis-amenity to nearby sensitive premises.

Correction for background noise should be made if the difference between background noise and the maximum permissible noise level is <�­�­�­____dB as stipulated in the EPM (Control of Noise in Construction Sites) Regulations.

Effects of noise on human being can be physiological or psychological. Which of the following is NOT part of physiological effect?

Hearing loss depends on: (i) Sound pressure level (ii) Frequency of noise (iii) Area of exposure (iv) Type and nature of the noise

Sound may be propagated in 3 distinct ways: (i) Reflection (ii) Diffraction (iii) Refraction (iv) Detection

The Public Utilities Board (PUB) is a statutory board of the ________________________ responsible for ensuring a sustainable and efficient water supply in Singapore.

Which department in Public Utilities Board (PUB) is in charge of stormwater management?

The __________ measures shall minimise the extent and duration of any exposed / bare / erodible surfaces by Proper Work Sequencing.

Which of the following is NOT part of the sediment control measures at a construction site?

ECO to monitor & record discharge concentration to ensure that it will not exceed Total Suspended Solids (TSS) greater than __mg/l in concentration

______________ prepares a detailed Earth Control Measures (ECM) plan for all phases of the project for submission to PUB and may be required to make presentation to PUB.

For effective ECM, silty water at holding sump shall be treated and clear within ___ hours after rain so to prepare for next rain event.

Which of the following equipment is used by PUB to monitor the quantity of Total Suspended Solids in treated silty discharge?

Given a water treatment system with a capacity of 40 m3 per hour, compute the time taken, in hours, to treat 168 m3 of silty discharge.

Given the holding tank of 150m3 is full with silty water, what is the capacity of water treatment plant if it can treat the silty water within 5 hours?

To contain and treat the silty discharges from within a construction site, __________ shall be concrete-lined and adequate to capture all runoff from the site.

For effective ECM, silty water at holding sump shall be treated and clear within ___ hours after rain so to prepare for next rain event.

The Earth Control Measures (ECM) shall be designed to cope with a minimum design rainfall intensity of a return period of 1 in __ years storm.

Which of the following statement is NOT CORRECT about the role and responsibilities of Main Contractor and Qualified Erosion Control Professional (QECP) on ECM?

During Earth Control Measures (ECM) Construction stage, the occupier is required to cover bare earth with ____________________.