Punjab Univ M.Tech Entrance Exam paper

Can you please provide here Punjab University M.Tech Entrance Exam model question paper???

[Arun Vats]

Punjab University conducts CET entrance test for admission in M.Tech programme.

Here i am giving Punjab University CET entrance exam paper for M.Tech:

The voltage requirements for the SEM are of the order of :
A) 100-200V B) 100-200KV
C) 10-30KV D) 10-30V

Powder X ray diffractometry is used to
A) Determine the crystal structure
B) Determine the surface topography
C) Determine the wavelength of X rays
D) None of the above

The difference between AFM and STM is
A) STM is used for insulating materials and AFM for Conductive materials
B) STM is used for Conductive materials and AFM for insulating materials
C) STM is used for Surface details and AFM for lnner details.
D) STM is based on atomic forces and AFM on quantum tunneling

Lanthanum Oxide is a:
A) Conductor
B) Semiconductor
C) Dielectric
D) Superconductor

LED emit light because
A) They are made up of direct band gap semiconductors
B) Band to Band tunneling
C) Quantum mechanical tunneling action
D) They are made up of indirect band gap semiconductors

In modern communication system, the data traffic can be measured by
A) Baud rate B) Bit Rate
C) Symbol rate D) Erlangs

In a MOSFET, the drain current saturates because
A) The drain is cut off from the source
B) The drain is shorted with the source
C) Due to unknown physics phenomenon in the channel
D) Breakdown phenomenon

Which one of the following is used as a resist material in IC fabrication?
A) PBS B) SEM
C) Silicon D) Germanium

Latch up problem in Integrated Circuits is minimized using:
A) Bulk silicon technology
B) SOI technology
C) SiGe technology
D) SiC technology

Ion implantation causes damage in ICs in the form of conversion from :
A) Polycrystalline to crystalline
B) Amorphous to Crystalline
C) Amorphous to Polycrystalline
D) Crystalline to amorphous

Analytical instruments are used for:
A) Producing the semiconductor
B) Designing the VLSI Ships
C) Characterizing the semiconductor samples
D) Packaging of microelectronic devices

MOSFET is:
A) Bipolar device
B) Unipolar device
C) Current controlled device
D) Having low input impedance and high output impedance

In an FM wave, the side bands are spaced at intervals equal to
A) Twice the modulating frequency
B) Half the modulating frequency
C) Equal to the modulating frequency
D) Independent of the modulating frequency

CDMA stands for
A) Code Division Multiplexing Access
B) Collision Detection Multiple Access
C) Code Division Multiple Access
D) None of these

The gain of an inverting OP-Amp. Is
A) Always greater than 1
B) Always less than 1
C) Always equal to1
D) Greater than or less than or equal to 1

An ideal Op-Amp drows
A) Zero current
B) Sum of the two input currents
C) Difference of the two input currents
D) Infinite current

The voltage gain of an amplifier is 100. On applying negative feedback with _=0.03, its gain will reduce to
A) 70
B) 25
C) 99.97
D) 3

Tuned voltage amplifier are not used
A) In public address system
B) Radio receivers
C) Where a band of frequencies is to be selected and amplified
D) In TV receivers

The current gain in BJT can be increased effectively by:
A) Using SIGE technology
B) Using high doping in the base
C) Using low doping in the emitter
D) Reverse biasing the output

Forward biasing the output the P-type semiconductors are
A) Positively charged
B) Neutral
C) Negatively charged
D) Having high concentration of electrons