LET Review for Technology and Livelihood Education 2018

LET Review for Technology and Livelihood Education



Direction: Encircle the letter of the correct answer

1.      The preparation of good quality lumber includes several stages.  When it is dried the process involved is
a.      Seasoning
b.      Staining
c.       Lumbering
d.      Logging
2.      The smallest division of the metric scale that you can find in the steel rule is
a.      Decimetre
b.      Centimetre
c.       Millimetre
d.      Meter
3.      What is the conversion equivalent of one inch to centimetres?
a.      25.4
b.      2.54
c.       0.254
d.      0.0254
4.      A seasoned lumber is ideal for carpentry works.  Which among the following is best to use?
a.      Sun dried
b.      Kiln dried
c.       Air dried
d.      Natural dried
5.      There are numerous kinds of saw.  When sawing along the grain of wood,, you need a
a.      Back saw
b.      Cross cut saw
c.       Rip saw
d.      Circular saw
6.      In measuring cylindrical object, what is the appropriate tool to be used is
a.      Ruler
b.      Caliper
c.       C. pull-push rule
d.      Meter stick
7.      Fastening materials are important in woodworks.  The most common of these materials is
a.      Dowel
b.      Bolts
c.       Screw
d.       Nails
8.      A wood product made of three or more veneer slice that are laid one upon the other and bonded with glue or synthetic resin
a.      Pressed wood
b.      Plywood
c.       Particle board
d.      Soft wood
9.      Which of the following tools is used in checking the squareness of the corners and flatness of a surface?
a.      Straightedge
b.      Steel square
c.        Sliding T-bevel
d.      Try square
10.  The strongest form of wood joint applicable for table leg is
a.      Miter
b.      Mortise and tenon
c.       Dado
d.      Butt and lap
11.  You are almost finished with your project.  One of the procedures below is done before the application of finishing materials
a.      Cutting
b.      Spraying
c.       Sanding
d.       Varnishing
12.  In carpentry, splicing or joining of wood using two side blocks is called
a.      Lapping
b.      Scarfing
c.       Fishing
d.      Jointing
13.  There are considerable number of woods joints, the simplest and easiest to make is
a.      Lap joint
b.      Dado joint
c.       Miter joint
d.      Butt joint
14.  A triangular file is used to sharpen a saw.  What is the angle of the file set against the bevel of he tooth of a cross cut saw?
a.      30 degrees
b.      45 degrees
c.       90 degrees
d.      60 degrees
15.  A person who installs pipes, fixtures and other apparatus convey and supply water in buildings and to dispose and discharge waste water.
a.      Carpenter
b.      Plumber
c.       Mason
d.      Mechanic
16.  It is receptacle or vault used to collect organic waste discharged from the house sewer
a.      Septic tank
b.      Manhole
c.       Water tank
d.      Waste tank
17.  The semi-liquid substance accumulated at the bottom of the septic tank
a.      Scum
b.      Sediment
c.       Sludge
d.      Slit
18.  An underground tunnel that carries off the drainage and waste matter from a home or town is called
a.      Drainage system
b.      Fixture
c.       Sewerage
d.      Sewer
19.  The pipe that conveys waste from various fixture other than from the water closet
a.      Waste pipe
b.      Soil pipe
c.       Vent pipe
d.      Drain pipe
20.  It is fitting or device that provides liquid seal to prevent the back passage of air
a.      Loop
b.      Fixture
c.       Sewer
d.      Trap
21.  The tools used to tighten or loosen hexagonal fittings like unions and other metal fittings
a.      Pipe vise
b.      Pliers
c.       Wrenches
d.      Threader
22.  The kind of fitting used to connect fixed pipe and fixture is
a.      Wye fitting
b.      Coupling
c.       Union fitting
d.      Reducer
23.  A fitting device installed at the inlet of a water pump to prevent backflow of water
a.      Ball valve
b.      Check valve
c.       Backwater valve
d.      Gate valve
24.  It is device installed in water lines that can be closed or opened to allow installation or troubleshooting of fixtures
a.      Check valve
b.      Gate valve
c.       Ball valve
d.      Float valve
25.  A schedule 40 pipe is
a.      Thicker than schedule 20
b.      Thicker than schedule 80
c.       Thinner than schedule 10
d.      None among the choices
26.  What material is used to seal off threaded fittings to avoid leakage
a.      Masking tape
b.      Teflon tape
c.       Scotch tape
d.      Adhesive gum
27.  What must be installed to prevent siphonage or backflow of the water seal in the drainage system?
a.      Vent pipe
b.      Drain pipe
c.       Soil pipe
d.      Cleanout
28.  Which of the following is NOT required by the National Plumbing Code?
a.      Drainage pipe should be inclined properly for a downward gravity
b.      Drainage pipe should be provided with adequate cleanout
c.       No vent pipe is needed
d.       All pipe joints must be well-fitted and tightly connected
29.  What is ideal inclination of a horizontal waste pipe as recommended by the National Plumbing Code?
a.      2% slope
b.      3% slope
c.       4% slope
d.      0% slope or level position
30.  For purposes of troubleshooting in case of stoppage of flow, what must be installed in the pipe system?
a.      Vent pipe
b.       Cleanout
c.       Drain
d.      Tee fitting
31.  Plastic pipes are commonly used in water fixture installation nowadays.  Which of the following I preferred?
a.      Polyvinyl chloride (PVC)
b.      Chlorinated PVC (CPVC)
c.       Cross-linked polyethylene (PEX)
d.      Polyethylene
32.  The Plumbing Code on House Drain provides that there must be no more than two closets that shall discharge into a ______________ pipe diameter
a.      3 inches or 75 mm
b.      80 mm
c.       Less than 75 mm
d.      70 mm
33.  A metal or plastic fitting used to connect smaller pipe from a larger pipe
a.      Reducer
b.      Elbow
c.       Union
d.      Coupling
34.  As a basic pre-requisite for most plumbing project, what should be connected for each faucet, toilet and fixtures?
a.      Fixture shutoffs
b.      Main shutoffs
c.       Intermediate shutoffs
d.      Valves
35.  Bricks are laid where its longer side is exposed to view.  This arrangement is called
a.      Header
b.      Stretcher
c.       Bond
d.      Mortar
36.  The most widely used masonry materials for construction works
a.      Ashlar
b.      Bricks
c.       Rubble stones
d.      Concrete hollow blocks
37.  It is the masonry material manufactured from clay and other materials
a.      Stones
b.      Stucco
c.       Bricks
d.      Concrete pavers
38.  What is the tool used to guide the vertical position in laying bricks?
a.      Plumb bob
b.      Water hose level
c.       Spirit level
d.      String or chord
39.  Which of the following is a finishing tool for concrete?
a.      Crandal
b.      Bolster
c.       Float
d.      Spade
40.  Which of the following is NOT a requirement to consider in proportioning concrete mixture?
a.      Economy
b.      Workability
c.       Strength
d.      Flexibility
41.  Concrete is said to be workable if it can be molded or deformed without segregation.  This characteristics is known as
a.      Consistency
b.      Plasticity
c.       Mobility
d.      Workability
42.  Following are factors that regulate the strength of concrete except one.  Which is it?
a.      Correct proportion of ingredients
b.      Proper method of mixing
c.       Adequate protection of concrete during curing
d.      Dropping concrete mixture from high elevation
43.  What class of concrete mixture is consisting of 1 bag of cement, 2 cu ft of sand and 4 cu ft of gravel or 1:2:4?
a.      Class AA
b.      Class A
c.       Class B
d.      Class C
44.  How many cubic yard of concrete do you need to cover a space with an area of 25 square foot and  a slab thickness of four (4) inches?
a.      0.34 cu yd
b.      .32 cu yd
c.       .25 cu yd
d.      .51 cu. Yd
45.  What tool or instrument is used to set-up the lateral level of a concrete fence?
a.      Water hose level
b.      Spirit level
c.       Plumb bob
d.      Straight edge
46.  According to the Building Code of the Philippines, for how many days shall concrete be maintained above 100C temperature and in moist condition?
a.      3 days
b.      5 days
c.       7 days
d.      10 days
47.  Which of the following are known as coarse aggregates in a concrete mixture?
a.      Sand
b.      Soil
c.       Gravel
d.      Stones
48.  What do you call the process of hardening of concrete?
a.      Curing
b.      Setting
c.       Hardening
d.      Molding
49.  What is the type of hydraulic cement is widely used in small and large construction including roads and highways?
a.      Hydraulic cement
b.      Portland cement
c.       Pozzolan cement
d.      Lime
50.  How many pieces of 4”x8”x16” concrete hollow blocks (CHB) can be laid per bag of cement as mortar?
a.      55-60 pcs
b.      25-30pcs
c.       30-36 pcs
d.      40-45pcs
51.  What ingredient in concrete is added to the batch immediately before or during its mixing to improve its durability and accelerate strength development?
a.      Fine aggregates
b.      Coarse aggregates
c.       Admixture
d.      Water
52.  Which of the following refers to the structural reinforcing member that holds or binds together the main reinforcement of a column?
a.      Lateral tie
b.      Stirrups
c.       Spiral Tie
d.      Rebars
53.  These lines are used to indicate the measurement of objects and are represented by fine dark solid lines.
a.      Leader lines
b.      Extension lines
c.       Dimension lines
d.      Center lines
54.  If a drawing has an equal measure then it refers to
a.      Perspective drawing
b.      Sometric drawing
c.       Mechanical drawing
d.      Oblique drawing
55.  When parts that are not seen are represented by series of light dash lines then this line is classified as
a.      Reference line
b.      Visible line
c.       Section line
d.      Invisible line
56.  One of the best practices of a good draftsman is to NEVER letter without
a.      Guidelines
b.      Pencil
c.       Lettering pens
d.      Ink
57.  If a drawing has one surface that is called parallel to the picture plane then this method is called
a.      Oblique drawing
b.      Isometric drawing
c.       Perspective drawing
d.      Orthographic drawing
58.  This pictorial view is normally seen by the observer’s eyes.  Which one is it?
a.      Isometric drawing
b.      Oblique drawing
c.       Perspective drawing
d.      Orthographic drawing
59.  The fine line used to show clearly the dimension limits is called
a.      Center line
b.      Extension line
c.       Dimension line
d.      Phantom line or section
60.  A horizontal guide line used to determine the general height of lower case letters
a.      Base line
b.      Cap line
c.       Waist line
d.      Drop line
61.  Letters that are composed of uniform width elements are classified as
a.      Italic letters
b.      Text letters
c.       Gothic letters
d.      Roman letters
62.  Horizontal lines are best drawn using this instrument
a.      T-square
b.      Ruler
c.       Meter stick
d.      Triangles
63.  The drawing pencil of a drafstman is graded the softest, medium, the hardest.  Which of the following grades is the softest?
a.      6B
b.      HB
c.       3B
d.      9H
64.  Which grade of pencil is commonly used for lettering by a draftsman?
a.      2H
b.      HB
c.       4H
d.      6H
65.  A drawing instrument that serves as guide in drawing vertical and diagonal line as in triangles, it is generally used in drawing horizontal lines.  Which one is it?
a.      Triangular scale
b.      T-square
c.       Triangle
d.      French curve
66.  Which instrument is used in drawing curves except circles and arcs?
a.      Compass
b.      Protractor
c.       French curve
d.      Divider
67.  To completely describe a cone sphere, and rectangular pyramid the number of views needed is
a.      One
b.      Two
c.       Three
d.      Six
68.  This line is projected as a shorter line in a drawing
a.      Inclined line
b.      Vertical line
c.       Curve line
d.      Horizontal line
69.  Boxing Method is the most widely used method of drawing a/an
a.      Isometric view
b.      Pictorial view
c.       Mechanical view
d.      Perspective view
70.  Two intersecting lines which form right angles are called
a.      Straight lines
b.      Parallel lines
c.       Perpendicular lines
d.      Tangent lines
71.  A polygon is classified according to the number of sides.  What do you call a four-sided polygon?
a.      Pentagon
b.      Quadrilateral
c.       Hexagon
d.      Octagon
72.   How many meters is thirty feet?
a.      3 meters
b.      30 meters
c.       12 meters
d.      9 meters
73.  A form of electricity where the flow of current is always in the same direction
a.      Voltage
b.      Power
c.        Alternating current
d.      Direct current
74.  The force which opposes and reduces the flow of electrical current is recognized as
a.      Power
b.      Resistance
c.       Electromagnetism
d.       Frequency
75.  A part of an electric circuit which converts electrical energy into another form of energy to do work
a.      Load
b.      Circuit
c.       Source
d.      Control
76.  A law states that current is directly proportional to voltage and inversely proportional to resistance is known as
a.      PEC
b.      Law of resistivity
c.       Kirchoff’s law
d.      Ohm’s law
77.   In Ohm’s Law , to find the unknown voltage in the circuit, the formula to be used is
a.      E=I x R
b.      E= I/R
c.       I=E/R
d.      R=E/I
78.  What amount of current does a 40-watt fluorescent lamp draw from a 220 volts power source?
a.      5.5 amperes
b.      .18 amperes
c.       25.5 amperes
d.      50.5 amperes
79.  The standard number or diameter of wires for convenience outlet layout should be
a.      No. 12
b.      No. 14
c.       No. 18
d.      No. 10
80.  In facial make-up foundation serves as make-up base.  What is the best type of foundation recommended for dry skin?

a.      Cakes
b.      Cream
c.       Liquid
d.      Stick
81.  The purpose of thinning the hair is to remove its excess bulk without shortening its length.  What is the best shear to use for thinning bulky hair?
a.      All-purpose shear
b.      Clipping shear
c.       Razor
d.      Thinning shear
82.  The process of thinning, tapering and shortening of the hair
a.      Hair cutting
b.      Hair drying
c.       Hair setting
d.      Hair styling
83.  Make up is applied to the face for the purpose of improving its appearance.  To give color to the cheeks, which of the following should be applied?
a.      Eye shadow
b.      Lipstick
c.       Mascara
d.      Rouge
84.  To correct misshaped eyebrows, it is best to use
a.      Depilatory
b.      Eyebrow pencil
c.       Electric clipper
d.      Razor
85.  Arrange the following cosmetics in their order of use in applying make up
1.      Curl lash
2.      Eye liner
3.      Eye shadow
4.      Mascara
a.      1 2 3 4
b.      2 3 4 1
c.       3 2 1 4
d.      4 1 2 3
86.  A make up tool that makes eyelashes wavy is
a.      Blush on brush
b.      Curl lash
c.       Eye liner
d.      Mascara
87.  A corrective make-up that makes small eyes appear bigger
a.      Adding lines on the eyelids
b.      Using dark colored eyes hadow
c.       Using light colored eye shadow
d.      Using mascara
88.  An emery board is used to shape the ______ of the nails
a.      Cuticle
b.      Free edge
c.       Lunula
d.      Root of the nails
89.  An orangewood stick is used to
a.      Apply oil on the nails
b.      Remove excess cuticle remover
c.       Remove excess nail polish around the nails
d.      Remove stain on nails
90.  The ability of the hair to absorb moisture whether the hair is coarse, medium or fine is
a.      Hair analysis
b.      Hair elasticity
c.       Hair porosity
d.      Hair texture
91.  Foot cosmetic with tiny particles that helps remove stubborn dirt when giving foot spa is
a.      Foot balm
b.      Foot scrub
c.       Foot soak
d.      Foot spray
92.  Arrange steps in cleaning the nails
1.      Apply cuticle
2.      Cut and file nails
3.      Push cuticle
4.      Trim cuticle
a.      1 3 2 4
b.      2 1 3 4
c.       3 1 4 2
d.      1 3 4 1
93.  One way of shaping the eyebrow with the use of shaver is
a.      Depilation
b.      Epilation
c.       Threading
d.      Waxing
94.   A heavy make-up is suitable for
a.       casual affair
b.      Evening affair
c.       Picture affair
d.      Night swimming
95.  The first cosmetic applied on the nail when applying nail polish is
a.      Base coat
b.      Colored nail polish
c.       Cuticle remover
d.      Top coat
96.  What is the proper term for the practice of dividing the hair into smaller, more workable pieces for the purpose of control?
a.      Bunching
b.      Splitting
c.       Sectioning
d.      Texturizing
97.  A darker shade of eye color makes the natural color of the eye appear
a.      Lighter
b.      Darker
c.       Smaller
d.      Deeper
98.  Mariana would like to apply the principle she learned in corrective make-up to a friend whose lips are broad.  Which should you not recommend?
a.      Apply light color lipstick
b.      Apply lip gloss
c.       Use lip liner at the outer portions of the lips
d.      Use lip liner on the inner lips
99.  The nail is composed mainly of
a.      Melanin
b.      Keratin
c.       Collagen
d.      sebum
100.       The form of carbohydrates in which the plants store their reserve energy
a. sugar
b. starch
c. rice
d. legumes
101.      A poultry product made by milling or grinding cereal grains, root crops, legumes and similarly milled foods.
a. wheat
b. miseca
c. glutinous rice
d. flour
102.      An informal way of serving a meal to relatively large number of person in limited space and no waitress is needed.
a. Compromise Style
b. Buffet Style
c. Russian Style
d. English/Family Style
103.       Vary with areas and with families within areas
a. meal pattern
b. meal planning
c. menu
d. satiety value
104.      78. Includes all tools used for eating and serving foods such as knives, fork and spoon
a. linens
b. individual cover
c. cover
d. chinaware
105.      The finishing touches that are essential to the over all harmony of a table
a. center piece
b. sterling
c.placemats
d.chinaware
106.       It holds the entire place setting, but they should never overlap
a. table runner
b. silverware
c. placemats
d. chinaware
107.      Caramelization is a process by which sugar and sugar acids are heated to high temperature above 200 C, where a characteristic flavor and brown color results.  In which of the following food items this particular process is applied?
a. bibingka
b. leche flan
c. suman
d. puto
108.       Flour is to sift as coconut milk is to
a. drain
b. grind
c. stir
d. strain
109.      Carrots, pineapples, cucumbers, tomatoes and parsley are generally used as ingredients, but are used also to decorate food to arouse one’s appetite.  What is the best term used to describe their latter function?
a. dressing
b. marinade
c. garnishes
d. toppings
110.      84. You were asked to blanch the ingredients for coleslaw such as shredded cabbage, and carrots, you must therefore:
a. mip cabbage and carrots
b. toss cabbage and carrots
c. dip cabbage and carrots into boiling water for a few minutes
d. soften the said vegetables
111.      Pare is for potato as peel is for
a. sweet potato
b. gabi
c. banana
d. papaya
112.      To minimize meat shrinkage and retain much moisture of its nutritive value, the best cooking temperature is
a. moist heat
b. low to moderate heat
c. high heat
d. dry heat
113.      A starchy part of the cereal grain which contains the largest amount of protein
a. bran
b. germ
c. embryo
d. endosperm
114.      To remove feather or bristle from poultry by passing over a flame is to:
a. pan-boil
b. scale
c. single
d. clothing
115.      Which food is the best source of thiamine?
a.      Pork
b.      Milk
c.       Carrots
d.      Potatoes
116.      Water boils at 212 degrees.  What does rolling boil means?  The bubbles are____
a.      Rolling non-stop
b.      Forming rapidly and cannot be stopped when stirred
c.       Forming slowly and can be stopped when stirred
d.      Spilling out of a container
117.      Meats are considered rich in proteins.  What kind of protein is found in connective tissue of meat that converts to gelatin when it is cooked?
a.      Elastic
b.      Gluten
c.       Marbling
d.      Collagen
118.      Which of these nutrients is an anti-oxidants?
a.      Vitamin E
b.      Calcium
c.       Fiber
d.      Vitamin B 12
119.      Which of the following ingredients will use creaming method?
a.      Butter,flour and egg
b.      Flour, butter and egg
c.       Butter, egg and sugar
d.      Flour, butter and sugar
120.      What do you call that pourable mixture of flour, liquid and other ingredients?
a.      Dough
b.      Batter
c.       Cream
d.      Syrup
121.      A schematic diagram shows the components of an electronic circuit by means of __
a.      Symbol
b.      Construction
c.       Physical appearance
d.      Linear appearance
122.      One of the following is a non-polarized electronic component
a.      Transistor
b.      Resistor
c.       Diode
d.      Electrolytic capacitor
123.      A diode is an electronic part that at all times is expected to do one of the following functions.  Which one is it?
a.      Allow current to flow in both directions
b.      Multiply voltage
c.       Allow current to flow in one direction only
d.      Not allow any current flow
124.      When diode is tested and the reading is zero, it means the diode is
a.      Shorted
b.      Open
c.       Leaky
d.      Good
125.      The production of magnetic field by current in a conductor
a.      Electromagnetism
b.      Ferromagnetism
c.       Magnetism
d.      Diamagnetism
126.      Working efficiently is a good work habit.  Tinning the tip of a soldering iron refers to
a.      Cleaning the tip with a sand paper
b.      Making the tip pointed
c.       Cutting the tip
d.      Applying flux to the tip
127.      The common cause of an erratic or distorted sound of a transistor radio is a defective
a.      Amplifier
b.      Volume control
c.       Antenna
d.      Tuner
128.      An appliance with 110 V Ac supply is accidentally plugged to a  220V AC outlet.  What component is usually destroyed?
a.      Switch
b.      AC plug
c.       Line fuse
d.      Power transformer
129.      It refers to the quantity of organisms produced under a given situation per unit of space, time and efforts.
a.      Standing crop
b.      Production
c.       Algal bloom
d.      Cycle of production
130.      An animal that captures or preys upon other for its food known as
a.      Predator
b.      Nuisance
c.       Parasite
d.      Competitor
131.      It refers to the straining or overtaxing the ability of fish to easily adjust to changing environment conditions
a.      Acclimatization
b.      Stress
c.       Recovery
d.      Treatment
132.      It is the process of replenishing water lost through evaporation and seepage
a.      Pond draining
b.      Pond preparation
c.       Pond freshening
d.      Pond flushing
133.      This is the regular or orderly change from one style of community to another.
a.      Biological food chain
b.      Ecological succession
c.       Material removed
d.      Ecological balance
134.      It is a collective term for all the small suspended organisms that passively drift and float in the water
a.      Lumot
b.      Lab-lab
c.       Benthic organism
d.      Plankton
135.      The scientific name of milkfish
a.      Clariasbatrachus
b.      Caranxarmatus
c.       Chanoschanos
d.      Cyprinuscarpio
136.      The process of releasing fish in a body of water, like fish pond or lake is called
a.      Acclimatization
b.      Stocking
c.       Thinning
d.      Transferring
137.      It is the quantity of an organism, fauna or flora in a specific ecosystem made at a time of observation
a.      Materials removed
b.      Production rate
c.       Quantity production
d.      Standing crop
138.      It refers to the process of adjusting the fish to its new environment
a.      Stocking
b.      Acclimatization
c.       Migration
d.      Sampling
139.      It refers to a complex association of small bottom-dwelling plants and animal organisms that occur as a brownish, greenish or yellowish mat near the pod bottom
a.      Nektons
b.      Detritus
c.       Lab-lab
d.      Algae
140.       The combination of raw materials to satisfy the established nutrient requirements of the species and age of fish is known as
a.      Feed formulation
b.      Feed additive
c.       Feed stuffs
d.      Preservatives
141.      It is the general index of the efficiency of conversion of a fish of the efficiency of conversion of a feed into flesh
a.      Feed conversion ratio
b.      Feed frequency
c.       Feed efficiency
d.      Feed consumed
142.      The name given to a sudden mass development of unicellular algae, the water getting a green appearance like vegetable soup is
a.      Red tide
b.      Algal bloom
c.       Intoxication
d.      Asphyxiation
143.      It refers to a collective term covering all materials used to control, destroy or mitigate plants
a.      Pesticide
b.      Disinfectant
c.       Drugs
d.      Cure
144.      Poisonous substance produced by certain species of mold (aspegilus sp.)
a.      Aflatoxin
b.      Mimosine
c.       Red tide
d.      Algal bloom
145.      Causes toxicity of shellfish and finfish due to presence of dinoflagellate
a.      Algal bloom
b.      Aflatoxin
c.       Red tide
d.      Intoxication