BU AMACE 2025

A conductor encased in a material that is not recognized by the code as electrical insulation

Which of the following describes a covered conductor?

Traveling cables

These are electronic cables connecting an elevator car to a fixed electrical outlet in the hoistway?

Tungsten-halogen lamp

A special type of incandescent lamp popularly known as quartz lamp.

Junction box

An enclosure for housing and protecting electric wires and/or cables that are joined together in connecting or branching electric circuits

Warm air generated inside a room Is collected by compressor and brought to a condenser and releases it to the air outside.

What working principles are involved in the operation of an air-conditioning system in a building?

Upright Wye Branch

Which of the following fittings is categorized under sanitary drainage fittings?

Fixture units

A value derived based on the load-producing characteristics of fixtures measured in terms of volume per unit time rate.

Echo

A reflected sound reaching a listener’s ear with a delay after the initial creation of sound.

At every horizontal soil or waste branch less than 15 meters long

Which of the following conditions is NOT true in terms of providing cleanouts in the piping system?

Longitudinal

What type of wave transports energy by moving particles of the medium are moving back and forth in a leftward and rightward direction?

3.5 sq. mm#12 AWG

What is the minimum size of a THWN wire (in AWG) for lighting fixtures?

Panel Board

A component of an electricity supply system that divides an electrical power feed into subsidiary circuits, while providing a protective over current device for each circuit in a common enclosure

Steel

The commonly used pipe material for sprinkler and standpipe system.

Grease Trap

Which type of trap may be used on kitchen sinks to allow retention of oils, fats and other non-soluble substances?

Air Handling Unit

The following are four major components of a unitary or window type air conditioner EXCEPT __________.

Branch interval

A vertical length of soil or waste stack at least eight feet in height (a storey height), within which the horizontal branches from one storey or floor of the building or structure are connected to the stack.

Service Entrance Cable

A single conductor or multi-conductor assembly provided with or without an over-all covering, primarily used for services.

Metal Clad Cable (Type MC)

A factory assembly of one or more conductors, each individually insulated and enclosed in a metallic sheath of interlocking metal tape, or a smooth corrugated metallic tube.

All of the Above

Sound Transmission Loss (STL) is/are affected by the following:

Masking

In acoustics, it is defined as the obscuring or covering up of one sound by another.

25mm diameter

The smallest pipe in a sprinkler system.

Copper

What kind of material is used to convey refrigerant (refrigerant line) from the condenser to the fan coil unit (FCU) of a split-type air conditioning unit?

Diffraction

The phenomenon in sound propagation whereby a sound wave moves around an object whose dimensions are smaller than or about equal to the wavelength of the sound.

Incandescent Lamp

A fixture which produces light with a filament wire heated to a high temperature by an electric current passing through it.

75mm

What is the code-prescribed minimum drain pipe size of a water closet?

2%

What is the minimum recommended slope percentage value for horizontal excreta drainage pipes having a size of less than 102 mm?

100 watts

As per PEC, what is the maximum load given to each lighting outlet?

Yoke vent

What type of vent shall be used when inter-connecting vent stack with soil stack?

Direct flush valve

A water closet type that flushes through a siphon action created in the trap-way located at the rear of the bowl.

Parallel circuit

In this type of circuit, the voltage across each component is the same, equal to the source voltage, and the current through each component varies according to the impedance of each element; loads are connected across the lines.

Quartzoid bulb

The widely used sprinkler head type in the Philippines.

Waste stack

A vertical pipe which conveys only wastewater or liquid waste free from fecal matter.

Stack

A vertical line of soil, waste or vent pipe.

Building sewer

That part of the drainage system that extends from the end of the building drain and conveys its discharge to the public sewer, private sewer, individual sewage disposal system, or other appropriate point of disposal.

Elevator pit

That portion of the hoistway extending below the level of the bottom landing or floor to provide for overtravel and clearance for parts which requires space below the bottom of the car travel.

Each vent terminal shall not be extended to the outer air to minimize the possibility of clogging and the return of foul air to the building.

Which of the statements does NOT conform to the general plumbing principles for a sound and efficient system of plumbing?

Buffer

In an elevator, a piston or spring device that absorbs the impact of a descending elevator car in the elevator pit?

Service drop

The overhead service conductor from the pole or other aerial support to and including the splices, if any, connecting to the service entrance conductors of a building.

Curve surface

Creep is a phenomenon whereby sound travels along a:

When an absorbent is suspended in the trap with one end on the fixture side and the other on the drain side

Which of the following conditions will result in the loss of trap seal due to capillary action?

Air Handling Unit

A packaged assembly of air-conditioning components consisting of coils, filters, fan, humidifier, etc., which provides for the treatment of air before it is distributed to an air-conditioned space.

Electric Metallic Conduit

Metal pipe into which electrical conductors may be drawn; it has a wall section thinner than a rigid metal conduit and used for both exposed and concealed work.

Phon

In acoustics, what is the unit of loudness level?

Reverberation

It is the persistence of sound in an enclosed space resulting from repeated reflection or scattering of sound.

Building Supply Pipe

In water supply system, it is the first section of water supply piping in a building after the water meter.

A cable consisting of two or more insulated conductors protected by a flexible metal wrapping

Which of the following describes an armored cable?

Resistance and reactance

Resistance in alternating current (ac) also known as impedance is a combination of ____________ and ____________.

All of the above

Sound Transmission Loss (STL) Is/are affected by the following:

Refraction

The bending of the travel of sound caused by an obstacle in its path.

Stack Vent

A vent stack must be extended vertically upwards and terminated at the vent stack through roof through _______.