TLE major
Which is NOT true about proper maintenance
of electronic tools?
a. Ensure that the tools are used only for
their intended purposes.
b. Keep the tools lubricated with soap and
water inhibits rust.
c. Keep the tools clean and sharp.
d. Keeps the soldering tips clean and well
tinned.
The word electron was derived from the
Greek word "elektron", which means:
a. to rub
b. to flow
c. amber
d. friction
The peak to peak voltage in a 117 V AC
outlet is ________.
a. 620 V
b. 165.5 V
c. 331 V
d. 220 V
Which is a type of modulation where the
amplitude of the carriers is changed in accordance with demodulating signal?
a. FM
b. PDM
c. AM
d. PCM
One of the most common problems with
vacuum cleaners is broken wiring inside cord set. This is due to
_____________.
a. flexing, wiring, long term abuse
b. vibration, corrosion
c. poor manufacturing
d. dust, dirt, humidity
A device which is designed to receive or
transmit radio signals.
a. Amplifier
b. Ammeter
c. Antenna
d. Piezo Transducer
What electronic component is commonly used
to amplify or switch electronic signals?
a. capacitor
b. transistor
c. diode as
d. resistor
The drawing equipment that is used to draw
horizontal lines is ____.
A. cross-ruled paper
B. ruler
C. triangle
D. T-square
In order to get good spacing of letters in
forming words, the areas between the
letter should be approximately equal which
means _____.
A. horizontal distances are equal.
B. Vertical distances are equal
C. The space between two words in the same
sentence shuld be equal t the height of the line s of the letters.
D. The upper case letter is equal t the
height of the capital letter.
This line is used to represent the visible
edges of an object when making a
drawing.
A. Hidden line
B. Long break line
C. Outline of parts
D. Section line
How will draw horizontal lines ?
A. It is drawn from right to left
B. It is drawn from left to
right
C. It is drawn along the vertical edge of
triangle
D. It is drawn in any direction.
If the recipe calls for you to “blanch”
the ingredient such as vegetable, your being asked to:
a. Cook over charcoal or a fire
b. to simmer in a small quantity of
liquid
c. to put in boiling water & then
immediately put it into cool water
d. to heat foods containing sugar until a
brown color develop
When a semiconductor diode’s anode
terminal is supplied with negative dc voltage and the cathode with positive dc
voltage, the diode bias is
A. Forward
B. Reverse
C. No bias
D. More bias
If 12 volts are applied to a certain lamp
whose filament has a resistance of 3 ohms, the current flow through the lamp
filament will be
A. 4 amp
B. 36 amp
C. 8 amp
D. 12 amp
If a copper wire becomes heated because of
an excessive amount of current flowing through it, the resistance of the wire
A. Decreases
B. Increases
C. Remains the same as when the wire is
cold
D. Becomes zero
To measure the current flowing through a
circuit, connect an
A. Ohm meter
B. Ammeter
C. Volt meter
D. Meter in series with the circuit
In the laboratory, to verify the current
in a resistor, _______________.
a. an ammeter is connected in series
with the resistor
b. a voltmeter is connected in
series with the resistor
c. an ammeter is connected parallel
to the resistor
d. a voltmeter is connected parallel
to the resistor
Which statement is true?
a. An ammeter has negligible
resistance.
b. A voltmeter has negligible
resistance.
c. An ammeter measures voltage.
d. A voltmeter measures current.
Kirchhoff’s Current Law : nodes
; Kifchhoff’s Voltage Law : __________
a. junction
b. loops
c. meshes
d. b and c
Kirchhoff’s Laws are applicable to
networks with series resistors.
a. Always true
b. Often time
c. Sometimes true
d. Never true
Wise buying saves money. In the following
practices the least to save money is
a. Buying non-perishable food in large
quantities.
b. Buying only familiar brands.
c. Buying directly from sources.
d. Buying foods in season.
Which of the following is correct in
setting the dinner knife and soup spoon?
a. Both should be place to the right of the
plate
b. Both should be placed to the left of
the plate
c. Both should be placed above the
plate
d. Dinner knife must be placed at the left
and soup spoon must be on the right of the plate
This deficiency occurs when the newly
weaned children whose calorie supply is adequate but whose protein supply is
not. It is known as
a. Kwashiorkor
b. Beri-beri
c. Pellagra
d. Marasmus
Which of the following means to “cook in a
small amount of fat”?
a. braise
b. barbeque
c. sauté
d. blanch
This kind of line is a heavy wavy lines
made of freehand.
A. cutting plane lines
B. ditto lines
C. long break lines
D. short break lines
Which of the following kinds of drawing is
used to show the front, top, and side of an object in their actual
relation to each other ?
A. Isometric
B. Oblique
C. Perspective
D. Pictorial
This kind of drawing shows how object
actually appeared to the observer ?
A. Isometric
B. Oblique
C. Orthographic
D. Perspective
In dimensioning drawing the dimension
figures should be about ____inch high and the fraction should be ¼ inch
high.
A. 1/16
B. 1/8
C. ¼
D. ½
Which of the following is a safe and
acceptable way to thaw a frozen chicken?
a. Gradual thawing at room
temperature
b. Rapid thawing in boiling water
c. Gradual thawing under hot running
water
d. Gradual thawing under refrigeration
This vitamin is present only in foods of
animal origin thus vegetarians are usually deficient in one of the following
vitamins:
a. Vitamin A
b. Vitamin B1 or thiamine
c. Vitamin B12 or cobalamin
d. Vitamin C or ascorbic acid
What gives dough its elasticity?
a. gluten
b. the number of knead
c. protein
d. starch
The conservation law that served as basis
for Kirchhoff’s Current Law is _________.
a. conservation of charge
b. conservation of energy
c. conservation of mass
d. conservation of quantum numbers
A capacitor and an inductor are electronic
components that store electrical energy. How is an inductor different from a
capacitor?
a. An inductor is an electromagnet
b. An inductor is made up of a coil of
wire
c. An inductor may be made into a
capacitor
d. An inductor stores energy in its magnetic
field
When you use baking soda instead of baking
powder,
a. reduce the amount and add
acid
b. reduce the amount and add liquid
c. use the same amount and add acid
d. increase the amount and add acid
In these hard times, one way to prepare
low cost but nutritious meal is to
a. Reduced quantity of food
prepared.
b. Reduced quality of food prepared.
c. Buy the cheapest ingredients
d. Recycle leftovers.
The following are the importance of
geometric construction except _____.
A. developing sketches
B. making lettering
C. making plans
D. reading drawing
These are lines that do not meet no matter
how far they are extended.
A. Angle lines
B. Curved lines
C. Oblique lines
D. Parallel lines
Use to assemble electronics appliances and
project.
a. electronics tools
b. electronics unit
c. electronics components
d. electrical network
When using soldering iron in soldering
surface mount component it requires ___.
a. bigger tips
b. smaller tips
c. narrow tips
d. wider tips
The type of current whose amplitude drops
to zero periodically and is produced in rectifier is known as ________.
a. Pulsating Direct Current
b. Damped Alternating Current
c. Varying Direct Current
d. Saw tooth wave
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
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
An appliance with 110 Volts AC Supply is
accidentally plugged to a 220 Volts AC outlet. What component is usually
destroyed?
a. Switch
b. AC plug
c. Line fuse
d. Power transformer
The actual flow of current is from
________.
a. negative to positive
b. positive to negative
c. positive to positive
d. negative to negative
Which is an electrical unit of measuring a
power?
a. Ohms
b. Ampere
c. Watt
d. Volt
A category of a resistor which obey Ohm's
Law is ________.
a. linear
b. non-linear
c. potentiometer
d. resistance
Which is an electronic device that is used
to limit or oppose the flow of current in a circuit?
a. Capacitor
b. Resistor
c. Diode
d. Inductor
What is the color code in 5 band for a 63
M and 10% resistor?
a. Blue, Orange, Black, Green and
Gold
b. Blue, Orange, Black, Green and
Silver
c. Blue, Yellow, Black, Green and
Silver
d. Blue, Red, Black, Green and
Silver
What input values will cause an AND logic
gate to produce a HIGH output?
a. At least one input is LOW.
b. At least one input is HIGH.
c. All inputs are LOW.
d. All inputs are HIGH.
Ohm's law describes the mathematical
relationship between
a. resistance, voltage, and current
b. resistor size and resistor value
c. ohms, kilohms, and megohms
d. none of the above
One of the most common applications of a
potentiometer is as an adjustable voltage divider, also known as
a. divider control
b. volume control
c. voltage control
d. current control