GATE 2017
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This test is developed by PLUTUS ACADEMY
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Question 1 of 38
1. Question
1 pointsPoission ratio for perfectly incompressible elastic body
Correct
Incorrect

Question 2 of 38
2. Question
1 pointsA beam of diameter ‘d’ and length ‘l’ is fixed between to end supports as
shown in figure below.For buckling the change in tempture is proportional to
Correct
Incorrect

Question 3 of 38
3. Question
1 pointsThe ratio of second moment of area to the section modulus of a circular section
is
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Question 4 of 38
4. Question
1 pointsCorrect
Incorrect

Question 5 of 38
5. Question
1 pointsA circular shaft transmitt 40 kW power and shaft diameter is 40 mm and
rotated 500 rpm. maximum shear stress developed by shaft is
Correct
Incorrect

Question 6 of 38
6. Question
1 pointsHeat pump absorb 10 kW heat from environment which is at 250 K and absorb
15 kW work and heat the space which is at 300 K. What is the COP of the
heat pump?
Correct
Incorrect

Question 7 of 38
7. Question
1 pointsCorrect
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Question 8 of 38
8. Question
1 pointsThe equation given below has the solution
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Question 9 of 38
9. Question
1 pointsCorrect
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Question 10 of 38
10. Question
1 pointsWhich machine is not a rotating machine?
Correct
Incorrect

Question 11 of 38
11. Question
1 pointsIn a mixture of air and water vapour (Wa
= 28.65, Ww
= 18) total pressure at
30oCis 100 kPa relative humidity 55%, saturation pressure is 2446 Pa. Determine
weight of water vapour per kg of dry air
Correct
Incorrect

Question 12 of 38
12. Question
1 pointsGas turbine entry temperature 1200 K. pressure ratio 10, ratio of specific heates
1.4, isentropic efficiency of turbine 0.9, then the exit temp of turbine?
Correct
Incorrect

Question 13 of 38
13. Question
1 pointsCorrect
Incorrect

Question 14 of 38
14. Question
1 pointsWhat will be the safe thickness of the plate for the given loading. Given the
tearing strength of the plate is S and diameter of the rivets is ‘d’
Correct
Incorrect

Question 15 of 38
15. Question
1 pointsCorrect
Incorrect

Question 16 of 38
16. Question
1 pointsCorrect
Incorrect

Question 17 of 38
17. Question
1 pointsIf the flow is countinous and incompriable and flow velocity is given by
V = (5 + a1
x + b1
y)ˆ
i + (8 + a2
x + b2
y)ˆj
Then which of these is correct
Correct
Incorrect

Question 18 of 38
18. Question
1 pointsCorrect
Incorrect

Question 19 of 38
19. Question
1 pointsWhich of the following is wrong about the matrix
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Question 20 of 38
20. Question
1 pointsWelding speed is doubled then heat affected zone area will be
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Incorrect

Question 21 of 38
21. Question
1 pointsIn tension test ultimate strength is defined as
Correct
Incorrect

Question 22 of 38
22. Question
1 pointsA shaft is transmitting 40 kW at 500 rpm and diameter of the shaft is 40 mm.
What will be the shear stress in the shaft
Correct
Incorrect

Question 23 of 38
23. Question
1 pointsAir contains 79% N2
and 21% O2
. If CH4
is burnt in 50% excess of air then
what will be the molar percentage of N2
in the product
Correct
Incorrect

Question 24 of 38
24. Question
1 pointsIf average velocity of fluid in fully developed flow in uniform cross section pipe
is constant then average velocity in developing flow is
Correct
Incorrect

Question 25 of 38
25. Question
1 pointsCorrect
Incorrect

Question 26 of 38
26. Question
1 pointsCorrect
Incorrect

Question 27 of 38
27. Question
1 pointsSteam is condenced at 100oC temperature cold fluid enter at 20oC and exist at
50oC. What is the LMTD
Correct
Incorrect

Question 28 of 38
28. Question
1 pointsIn thread making process on lathe the spindle speed was 1500 rpm and pitch
of the thread is 0.8 mm and the pitch of the lead screw is 1.5 mm. What will
be the rpm of lead screw
Correct
Incorrect

Question 29 of 38
29. Question
1 pointsWhat will be the angle turn with respect to ‘P’
Correct
Incorrect

Question 30 of 38
30. Question
1 pointsCorrect
Incorrect

Question 31 of 38
31. Question
1 pointsIn milling machinig of 200 mm diameter material, tool diameter is 10 mm, feed
rate is 18 mm/min. Find time in minute complete the cutting process assume
ourtrival and approach are equal
Correct
Incorrect

Question 32 of 38
32. Question
1 pointsCorrect
Incorrect

Question 33 of 38
33. Question
1 pointsA fair dies is throm large number of times, meain of outcomes is
Correct
Incorrect

Question 34 of 38
34. Question
1 pointsWhat was center line average of triangular variation of surface roughness
which have peak to valley hight of 20 μm
Correct
Incorrect

Question 35 of 38
35. Question
1 pointsCorrect
Incorrect

Question 36 of 38
36. Question
1 pointsCorrect
Incorrect

Question 37 of 38
37. Question
1 pointsSpecific heat at constant volume 1.5 times of universal gas constant (8.314 J/
molK) the increase in temperature 100oC then change in enthalpy is (in kJ/mol)
Correct
Incorrect

Question 38 of 38
38. Question
1 pointsFind entropy change when 100 kJ work is done by stirrier on liquid in fixed
volume vessel. inital temperature 300 K and pressure 1 bar
Correct
Incorrect