drmgrdu.ac.in Model Question Paper : PhD Entrance Test

Name of the Organisation : Dr.M.G.R Educational and Research Institute University (drmgrdu.ac.in)
Type of Announcement : Model Question Paper PhD Entrance Test

Model Questions Paper
Entrance Examination for Ph.D Admission(March 2012)
PART A (Answer all questions) (10×1=10) Marks
1 The first law of thermodynamics deals with
(a) conservation of heat (b) conservation of momentum
(c) conservation of mass (d) conservation of energy
2 In a BCC structure there are
(a) one atom at the center of the cell
(b) six atoms at the faces of the cell
(c) four atoms inside the cell (d) None of these
3 Moderators are used in reactors because
(a) to slow down the neutrons (b) to slow down the electrons
(c) to absorb gamma rays (d) None of these
4 The final velocity of an electron accelerated through a potential of 1600 V (if the initial velocity is zero)
(a) 7 2.7 10 ´ m/s (b) 7 0.27 10 ´ m/s
(c) 10 2.7 10 ´ m/s (d) (a) 7 1.7 10 ´ m/s
5 Avalanche breakdown is primarily dependent on the phenomenon of
(a) collision (b) doping
(c) ionization (d) recombination
PART B (6×5=30) Marks
1 What are the quantities that are conserved for a system of particles in a nuclear reaction? Explain.
2 Why the Carnot cycle cannot be considered as a theoretical cycle for steam power plants even though its efficiency is maximum?
3 Given light wavelength 5100 Å from a narrow slit is incident on a double slit. If the overall separation of 10 fringes on a screen 20 m away is 0.1 m, find the slit separation.
4 Two photons A and B are moving in opposite directions each with a speed C Calculate the relative velocity of the photon A with respect to B

DEPARTMENT OF MECHANICAL ENGINEERING.
MODEL QUESTION PAPER.
Entrance Examination for Ph.D Admission(March 2012)
SECTION-A
(10 MULTIPLE CHOICE QUESTIONS TO BE ANSWERED) (10×1=10) Marks
1. Pelton wheel works on
a. Medium discharge, low head
b. High discharge, low head
c. Medium discharge, medium head
d. Low discharge, high head
2. According to first law of thermodynamics
a. Mass and energy are mutually convertible
b. Heat and work are mutually convertible
c. Heat flows from hot substance to cold substance
d. Carnot engine is most efficient
3. Pitch diameter of a gear is equal to the product of
a. Circular pitch and no. of teeth
b. Face width and no. of teeth
c. Clearance and no. of teeth
d. Module and no. of teeth
4. A cutting tool having tool signature 10,9,6,6,8,8,2 have side rake angle
a. 10° b. 9° c. 8° d. 2°
5. A shaft and hole is designated by 50H7d8.This assembly constitutes
a. Interference fit
b. Transition fit
c. Clearance fit
d. None of the above
SECTION-B
(6 QUESTIONS FROM ANY ONE SPECIALISATION TO BE ANSWERED.) (6×5=30) Marks
SPECIALISATIONS:
1.PRODUCTION AND INDUSTRIAL ENGINEERING
2.DESIGN ENGINEERING
3.THERMAL AND ENERGY ENGINEERING
PRODUCTION AND INDUSTRIAL ENGINEERING
Model questions
1. A 50mm diameter steel rod was turned at 284rpm and tool failure occurred in 10 minutes. The speed was changed to 232rpm and tool failed in 60 minutes. Assuming straight line relation between cutting speed and tool life, Find value of Taylor’s exponent.
2 .What are the methods of manufacturing the crankshaft. choose the best method and justify.
DESIGN ENGINEERING
Model questions
3. A circular rod of 100mm diameter and 500mm length is subjected to tensile force of 1000KN. Determine modulus of rigidity if E=2×10^5N/mm2 & Poisson ratio =0.3
4. A solid shaft of 100mm diameter transmits 160HP at 200rpm. The modulus of rigidity is 8×105Kg/cm². Find the maximum angle of twist if the shaft length is 6m.
THERMAL AND ENERGY ENGINEERING
Model questions
5. Air at 20°C blows over a plate of 50×25cm maintained at 250°C. If the convection heat transfer coefficient is 25W/m²/°C, find the heat transfer rate.
6. 1 Kg of moist air at 70% RH and 21°C is cooled at constant pressure at 1 bar to5°C. The vapour pressure at 21°C and 5°C are 0.025bar and 0.0087bar. Find the percentage of water vapour that condenses in to water at 5°C.

DEPARTMENT OF MANAGEMENT STUDIES
Entrance Test :<>: PhD Programme
Following is thecomposition of the cited Test:
WRITTEN: Duration: 90 Minutes Marks: 60 :<>: PRESENTATION : 20 – 30 Minutes : Marks: 40
Part – A:: General English [20 Marks]
Part – B :: Subject areas of MBA Programme [40 Marks]
SAMPLE Questions :<>: Part – B
Section – I [10 Objectives Type Questions: 10 x 1 = 10 Marks
01] In Current Ratio, Current Assets are compared with:
(a)Current Profit, (b) Current Liabilities,(c)Fixed Assets, (d)Equity Share Capital.
02] A clear, concise, written declaration of an organization’s central and common purpose, or its reason for existence is defined as a(n) :
a] a vision, b] value, c] mission, d] ethical principle.
03] Who described the phenomenon that each employee engaged in a staff function creates work for his colleagues:
(a) W. Wilson (b) Parkinson (c) D. Waldo (d) Creep
Section – II [6 out of 12 Subjective Type Questions: 6 x 5 = 30 Marks]
01] List five reasons given by supervisors when resisting change.
02] Identify the roles that CEO plays in strategic management.
03] Briefly explain the role of Balance Sheet in ratio analysis.
04] ‘Market segment has nothing to brand image’ – Justify.
05] Distinguish between HRM and HRD.
06] Explain Meta Marketing in the era of globalization.
07] “Customer is the King” or ‘Customer is the Boss’?
08] Why is social responsibility a contentious issue?

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