Excellent quality for Miniature circuit breaker-FTB2G to America Factories
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|Rated voltage (V):||230/400|
|Rated current (A)C,D||6,10,16,20,25,32,40,50,63|
|Mechanical and electrical life:||20000|
|Ambient temperature (°C)：||-5 ~ +40|
|Relative air humidity：||no more than 95%|
|Installation：||Used in place without obvious shock and vibration|
Electrical & Electronic Systems MOST IMP MCQ
Que: -) Square law modulators
a. Have nonlinear current-voltage characteristics
b. Are used for Amplitude Modulation
Que: -) AM demodulation techniques are
a. Square law demodulator
b. Envelope detector
Que: -) The process of recovering information signal from received carrier is known as
Que: -) Generation of SSB SC signal is done by
a. Phase discrimination method
b. Frequency discrimination method
Que: -. Frames from one LAN can be transmitted to another LAN via the device
Que: – How many digits of the DNIC (Data Network Identification Code) identify the country?
A. first three
Que: -What is the primary function of multiplexing?
To allow a number of signals to make use of a single communications channel.
Que: -) Which among the following stages is adopted in Splice Loss Experiment?
Que: -) Why is an electrical isolation required between several portions of an electronic circuit?
a. Provision of high voltage protection
b. Reduction in noise level
Que: -) In an optical network, increase in the number of lasers the bit rate.
Que: -) Which among the following parameters is/are decided by the front-end of a receiver?
Que: -. Which of the following are limitations of break-even analysis?
A) Static concept
Que: -. Contribution is also known as
a) Contribution margin
Que: -. Safety guards on machines should be
A. Always in position
Que: -. Which of the following is indirect cost?
D. Training for job
following is direct cost.
A. Cost of raw material
B. cost of machining
C. Power consumption in fabrication
Que: -. Systematic appraisal of each job in the organization to determine its comparative value, is known as
D. Job evaluation
Que: -. Which of the following is a disciplinary action?
Que: -) The power output from a hydroelectric plant depend on
discharge, system efficiency.
Que: -) In hydroelectric power plants
operating cost is low and initial cost is high.
Que: -) Water hammer is developed in a
Que: -) With reference to hydrometer station, the graphical representation of the discharge as function of time is known as
Que: -. Which among the following is not a renewable source of energy?
(b) Biomass energy
Que: -. Photovoltaic energy is the conversion of sunlight into:
(a) Chemical energy
Que: -. Horizontal axis and vertical axis are the types of:
(b) Wind mills
Que: -. Steam reforming is currently the least expensive method of producing:
Que: -. A fuel cell, in order to produce electricity, burns:
Que: -. Fuel cells are:
(b) Hydrogen battery
Que: -. Both power and manure is provided by:
(c) Biogas plants
Que: -The outermost layer of the earth is:
Que: -The one thing that is common to all fossil fuels is that they:
(b) Contain carbon
Que: -The process that converts solid coal into liquid hydrocarbon fuel is called:
Que: -Lignite, bituminous and anthracite are different ranks of:
Que: -Crude oil is:
(c) Smelly yellow to black liquid
Que: -BTU is measurement of:
(c) Heat content
Que: – Boiling water reactor and pressurized water reactors are:
(a) Nuclear reactor
Que: – Transmission media are usually categorized as _______.
guided or unguided
Que: – Transmission media lie below the _______ layer.
Que: – _______ cable consists of an inner copper core and a second conducting outer sheath.
Que: – In fiber optics, the signal is _______ waves.
Que: -Which of the following primarily uses guided media?
B) local telephone system
Que: – In an optical fiber, the inner core is _______ the cladding.
A) denser than
Que: – The inner core of an optical fiber is _______ in composition.
A) glass or plastic
Que: – When the angle of incidence is _______ the critical angle, the light beam bends along the interface.
C) equal to
Que: – A parabolic dish antenna is a(n) _______ antenna.
Que: -A(n) _____ medium provides a physical conduit from one device to another.
Que: -______ cable consists of two insulated copper wires twisted together.
Que: -______cable is used for voice and data communications.
Que: – __________ consists of a central conductor and a shield.
Que: – _____ cable can carry signals of higher frequency ranges than _____ cable.
C) Coaxial; twisted-pair
Que: -___cables carry data signals in the form of light.
Que:-In a fiber-optic cable, the signal is propagated along the inner core by _______.
Que: -_________ media transport electromagnetic waves without the use of a physical conductor.
MORE MCQ IN THE VIDEO
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