GATE Question Papers – Page 5

Chemical Engineering stream will have less competition comparing to other streams in GATE examination. Following are previous question papers of GATE – Chemical Engineering stream. The GATE exams is intended to provide admission into M.Tech and Integrated research programmes in IITs, NITs and various other private institutions also consider GATE scores for shortlisting the candidates. Apart from these, several PSU companies are considering GATE scores for the recruitment of Graduate Engineer Trainees. Here are some model questions for GATE – Chemical Engineering and then given previous question papers:

1) The ratio of Nusselt number to Biot number is
A) conductive resistance of fluid / conductive resistance of solid
B) conductive resistance of fluid / convective resistance of fluid
C) conductive resistance of solid / conductive resistance of fluid
D) unity

2) The ratio of thermal boundary layer thickness to the concentration boundary layer thickness is proportional to
A) Nu B) Le C) Sh D) Pr

3) Which ONE of the following statements about baffles in a shell and tube heat exchanger is FALSE? Baffles
A) act as a support to the tube bundle
B) reduce the pressure drop on the shell – side
C) alter the shell – side flow pattern
D) help in increasing the shell – side heat transfer coefficient

4) In Hagen – Poiseuille flow through a cylindrical tube, the radial profile of shear stress is
A) constant
B) cubic
C) parabolic
D) linear

5) A reactor needs to be lined with a corrosion resistant lining. One type of lining costs Rs. 5 lakhs and is expected to last for 2 years. Another type of lining lasts for 3 years. If both choices have to be equally economical, with the effective interest rate being 18 percent, compound annually, the price one should pay for the second type of lining is
A) Rs. 61. lakhs
B) Rs. 6.5 lakhs
C) Rs. 6.9 lakhs
D) Rs. 7.6 lakhs

GATE Chemical – Previous Paper 2007

GATE Chemical – Previous Paper 2008

GATE Chemical – Previous Paper 2009

GATE Chemical – Previous Paper 2010

Here we are giving GATE – Instrumentation Engineering previous question papers for the benefit of Engineering graduates. Candidates can download these question papers. GATE is an entrance exam conducted by IITs for admission into M.Tech, Integrated Research programmes and GATE scores are also accepted by NITs and several reputed private technical institutions. Following are some model questions and given below it are previous papers.

1) In a pulsed ultrasound imaging system, a single 5 MHz crystal is used both as source and as detector. Bursts of at least 20 cycles are needed for acceptable image quality. The velocity of sound in the tissue being imaged is 1500 m/s . The minimum distance of the objects to be imaged should be
A) 12 mm B) 6 mm C) 3 mm D) 1 mm.

2) Consider a system consisting of a microprocessor, memory, and peripheral devices connected by a common bus. During DMA data transfer, the microprocessor
A) only reads from the bus
B) only writes to the bus
C) both reads from and writes to the bus
D) neither reads from nor writes to the bus

3) A screening test is carried to detect a certain disease. It is found that 12 percent of the positive reports and 15 percent of the negative reports are incorrect. Assuming that the probability of a person getting a positive report is 0.01, the probability that a person tested gets an incorrect report is
A) 0.0027 B) 0.0173
C) 0.1497 D) 0.2100

4) A standard three lead frontal plane ECG is taken of a person with a normal heart. The peak amplitude of the R-wave is
A) greatest in lead I
B) greatest in lead II
C) greatest in lead III
D) equal in all the leads

5) The binary representation of the decimal number 1.375 is
A) 1.111 B) 1.010 C) 1.011 D) 1.001

GATE Instrumentation Previous Paper – 2007

GATE Instrumentation Previous Paper – 2008

GATE Instrumentation Previous Paper – 2009

GATE Instrumentation Previous Paper – 2010