You have 5 information signals and only one transmitter. What technique will help in transmitting all the 5 signals?
a) Frequency modulation
b) Multiplexing c) Amplification d) Amplitude modulation

Which one of the following is not true with respect to amplitude modulation?
a) Less noise
b) Longer range c) Lower bandwidth d) Less complex circuits

What type of multiplexing is used in serial buses?
a) Time division multiplexing
b) Code division multiplexing c) Frequency division multiplexing d) Phase multiplexing

Cps is the unit of what?
a) Frequency
b) Amplitude c) Phase d) Gain

The range of electromagnetic signals encompassing all frequencies is referred to as?
a) EM waves
b) EM frequency c) EM spectrum d) EM radiation

What is the wavelength of a signal with a frequency of 150Mhz?
a) 10m
b) 2m c) 5m d) 20m

The basic building blocks of the arithmetic unit in digital computers are __________
a) Subtractors
b) Adders c) Multiplexer d) Comparator

In a combinational circuit, the output at any time depends only on the _______ at that time.
a) Voltage
b) Intermediate values c) Input values d) Clock pulses

In a sequential circuit, the output at any time depends only on the input values at that time.
a) Past output values
b) Intermediate values c) Both past output and present input d) Present input values

The design of an ALU is based on __________
a) Sequential logic
b) Combinational logic c) Multiplexing d) De-Multiplexing

The flag bits in an ALU is defined as ___________
a) The total number of registers
b) The status bit conditions c) The total number of control lines d) All of the Mentioned

The inverter is an/a _______ gate (NPCIL)

A pulse train can be defined by a finite number of clock periods using ____ shift registers.
A) SISO
C) PISO B) SIPO D) PIPO

How many software interrupts are there in an 8085 microprocessor?
A) 8
C) 5 B) 6 D) 4

A transistor draws a base current of 100 µA when collector current is 10 mA. Calculate the values of alpha and beta respectively.

A) 100 and 0.999 B) 0.990 and 100 C) 0.875 and 120 D) 0.670 and 110

Which type of LCD has a highest color reproduction range?
A) Twisted Nematic
C) Vertical alignment panels B) In-panel switching D) Advanced fringe field switching

A logic circuit having a HIGH output when all its inputs are LOW is the
A) OR gate
C) Ex-OR gate B) NOR gate D) AND gate

MVI C, 25H is an example of which addressing mode in 8085 microprocessor?
A) Immediate Addressing Mode
C) Direct Addressing Mode B) Register Addressing Mode D) Register Indirect Addressing Mode

A Moving Iron Instrument cannot be used as a/an
A) Ammeter
B) Voltmeter C) Wattmeter D) Galvanometer

The instrument which automatically encodes the message typed on the keyboard and vice versa is
A) Telegraph machine
B) Electronic typewriter C) Teleprinter D) Printer

The base of a bi-polar junction transistor is

A) Lightly doped C) Heavily doped B) both of the above. D) None