List of practice Questions

The process of synthesizing large polymer molecules is:

The process of transferring a pattern into a reactive polymer film which will subsequently be used to replicate that pattern into an underlying thin film is called:

The number of cubes of each side 1 nm and the collective surface area that can be carved out from a cube with each side of 1 m are respectively:

In nanomaterials production, according to Aufbau principle the self-assembly of complicated structures takes place in a hierarchical fashion in the following sequence:
(A) the linear chains are bundled to form two-dimensional monolayers
(B) single molecules join up to form linear chains
(C) a finite number of independent molecules
(D) the two-dimensional monolayers are stacked to form the final three-dimensional crystal
Choose the correct answer from the options given below:

Match List-I with List-II

Major problems with the large-scale utilization of carbon nanotubes
(A) synthesis in pure forms
(B) dispersion in solvents
(C) reducing their length
(D) tailoring into a desired orientation

Which of the following statement(s) about Digital-to-Analog (DAC) converter is/are correct?
(A) DAC is said to be monotonic if its output decreases as the binary input is incremented from one value to the next.
(B) Ideally, the output of a DAC should be zero when the binary input is zero.
(C) The operating speed of a DAC is usually specified by giving its settling time.
(D) Resolution is the reciprocal of the number of discrete steps in the full-scale output of the DAC.

To expand a 4-bit parallel adder to an 8-bit parallel adder, we can
(A) use two 4-bit adders and connect the sum output of one to the input bit of the other
(B) use four 4-bit adders with no interconnections
(C) use two 4-bit adders with the carry output of one connected to the carry input of the other
(D) use eight 4-bit adders with no interconnections

What is the word length of an 8-bit microprocessor?

........ is the vector address of the TRAP interrupt.

............ refers to the inability to faithfully repeat recorded data output when measuring a range of values and scanning from different directions.

Which of the following statements about hydrogen peroxide is INCORRECT?

(A) MOV A, C is a one-byte instruction.
(B) OUT 03 H is a two-byte instruction.
(C) ANI 76 H is a three-byte instruction.
(D) STA 3000 H is a three-byte instruction.

Which part of optical fibre has a higher refractive index:

Which of the following is the most appropriate transmission frequency in optical fibre?

Fibre optic sensors may be classified into three categories. Choose the incorrect option.

Following statements are given in reference to 8085 Microprocessor:
(A) Its memory size is 64 KB
(B) It is a 40-pin IC
(C) Its clock frequency lies between 3 to 5 MHz
(D) It has 16 bit of each data and address lines.
Choose the correct answer from the options given below:

In the first window of optical fibre, light sources are generally:

A 32:1 Mux can be designed using:

A multiplexer (MUX)
(A) is a parallel to serial converter
(B) is also known as data distributor
(C) can be used as a logic function generator
(D) switch the data from several lines to one line

Choose the correct answer from the options given below:

Bio-functionalization of magnetic nanoparticles has been extensively used for the development of biosensors such as:

........... nanoparticles are extraordinarily efficient for clinical diagnostic purposes as they give strong signatures in optical absorption, fluorescence spectroscopy, X-Ray diffraction, and electrical conductivity.

Attenuation in optical fibre can be measured in: