GATE Mechanical Engineering Online Test, GATE ME Test 2021
GATE Mechanical Engineering Online Test Series 1, GATE ME Test
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GATE Mechanical Engineering Online Test Series 1, GATE ME Online Test 2021. GATE 2021 Online Test, GATE Mechanical Engineering Full online mock test paper is free for all students. GATE 2021 ME online Test 2021 Series 1 in English. GATE Mechanical Engineering Full online mock test paper is free for all students. Take GATE 2021 Mock Test in English from below, GATE Quiz 2021 Series 1. You may also find other Subjects GATE Online Test in this page. Here we provide Graduate Aptitude Test in Engineering Question and Answers 2021. This GATE ME Online test Series 1 is very helpful for exam preparation. The GATE Mechanical Engineering Mock Test 2021 is now available for all candidates, who will be appearing in the national level engineering exams 2021. Now take GATE Mechanical Engineering Online Test Series 1 by Click on Below “Start Quiz Button”
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Question 1 of 25
1. Question
If f (x) = x, then
Correct
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Question 2 of 25
2. Question
If y = log (x + √1+ x^{2}), then (1 + x)^{2 } is equal to
Correct
Incorrect

Question 3 of 25
3. Question
Given that u = e^{xyz}_{. }The is equal to
Correct
Incorrect

Question 4 of 25
4. Question
For the truss shown in the figure, the zero force members are
Correct
Consider joint D, for the truss shown in the figure. We assume force F_{1} in member DC, F_{2} in member DA and F_{3} in member DF. This joint is unloaded and the forces F_{2} and F_{3} are collinear. So, F_{1} must be zero. Similarly, forces in the members EF and HG are zero.
Incorrect
Consider joint D, for the truss shown in the figure. We assume force F_{1} in member DC, F_{2} in member DA and F_{3} in member DF. This joint is unloaded and the forces F_{2} and F_{3} are collinear. So, F_{1} must be zero. Similarly, forces in the members EF and HG are zero.

Question 5 of 25
5. Question
If shaft made from ductile material is subjected to combined bending and twisting moments. Which one of the following failure theories would give the most conservative value?
Correct
Most consecutive value means safest design i.e. largest diameter. For ductile material, maximum shear stresses of theory gives higher value of diameter.
Incorrect
Most consecutive value means safest design i.e. largest diameter. For ductile material, maximum shear stresses of theory gives higher value of diameter.

Question 6 of 25
6. Question
Match List I with List II and select the correct answer using the codes given below the lists:
List – I List – II a. Interference 1. Arc of approach, arc of recess, circular pitch b. Dynamic load on tooth 2. Lewis equation c. Static load 3. Minimum number of teeth on pinion d. Contact ratio 4. Inaccuracies in tooth profile Correct
Incorrect

Question 7 of 25
7. Question
Match List I (Fluid properties) with List II (Relate terms) and select the correct answer using the codes given below the lists:
List – I List – II a. Capillarity 1. Cavitation b. Vapour pressure 2. Density of water c. Viscosity 3. Shear stress d. Specific gravity 4. Surface tension Correct
Capillarity—————–> Surface tension Vapour pressure————–> cavitation
Viscosity———————> Shear stress Specific gravity—————> Density of waterIncorrect
Capillarity—————–> Surface tension Vapour pressure————–> cavitation
Viscosity———————> Shear stress Specific gravity—————> Density of water 
Question 8 of 25
8. Question
The heat conduction equation in a medium is given in its simplest form as Select the wrong statement below.
Correct
Incorrect

Question 9 of 25
9. Question
The _______ number is a significant dimensionless parameter for forced parameter convection and the _______ number is a significant dimensionless for natural convection.
Correct
The Reynolds number is a significant dimensionless parameter for forced parameter convection and the Grashof number is a significant dimensionless of natural convection.
Incorrect
The Reynolds number is a significant dimensionless parameter for forced parameter convection and the Grashof number is a significant dimensionless of natural convection.

Question 10 of 25
10. Question
The marking on a grinding wheel is `51 A 36 L 5 V 93`. The code `36` represents the
Correct
Incorrect

Question 11 of 25
11. Question
To reduce consumption of synthetic resins, the ingredient added is
Correct
To reduce the consumption of synthetic resins, the ingredient added is filler. Because of their low cost, fillers are important in reducing the overall cost of polymers. Fillers may also improve the strength, hardness, toughness, abrasive resistance, dimensional stability, etc.
Incorrect
To reduce the consumption of synthetic resins, the ingredient added is filler. Because of their low cost, fillers are important in reducing the overall cost of polymers. Fillers may also improve the strength, hardness, toughness, abrasive resistance, dimensional stability, etc.

Question 12 of 25
12. Question
The compositions of some of the alloy steels are as under:
1. 18W 4Cr 1V 2. 12Mo 1W 4Cr 1V
3. 6Mo 6W 4Cr 1V 4. 18W 8Cr 1V
The compositions of commonly used high speed steels would includeCorrect
The composition of commonly used high speed steels include 18W 4Cr 1V and 18W 8Cr 1V
Incorrect
The composition of commonly used high speed steels include 18W 4Cr 1V and 18W 8Cr 1V

Question 13 of 25
13. Question
Major operations in the manufacture of steel balls used for Ball bearings are given below:
1. oil lapping 2. cold heading 3. Annealing 4. Hardening 5. Rough grinding
The correct sequence of these operations isCorrect
The correct sequence of these operations is
1. Cold heading 2. Annealing 3. Hardening 4. Rough grinding 5. Oil lappingIncorrect
The correct sequence of these operations is
1. Cold heading 2. Annealing 3. Hardening 4. Rough grinding 5. Oil lapping 
Question 14 of 25
14. Question
Chills are used in moulds to
Correct
A chill is an object used to promote solidification in a specific portion of a metal casting mould. Normally the metal in the mould cools at a certain rate relative to thickness of casting. When the geometry of the moulding cavity prevents directional solidification from occurring naturally, a chill can be placed to help promote it.
Incorrect
A chill is an object used to promote solidification in a specific portion of a metal casting mould. Normally the metal in the mould cools at a certain rate relative to thickness of casting. When the geometry of the moulding cavity prevents directional solidification from occurring naturally, a chill can be placed to help promote it.

Question 15 of 25
15. Question
Carburised machine components have higher endurance limit, because carburization
Correct
Carburizing or Carburization is a heat treatment process by which carbon is introduced into a metal.
Carburization can be used to increase the surface hardness of low carbon steal. Because of carburization a compressive layer is produced on the surface which increase the hardness of the metal.Incorrect
Carburizing or Carburization is a heat treatment process by which carbon is introduced into a metal.
Carburization can be used to increase the surface hardness of low carbon steal. Because of carburization a compressive layer is produced on the surface which increase the hardness of the metal. 
Question 16 of 25
16. Question
At 100% relative humidity, the wet bulb temperature is
Correct
Incorrect

Question 17 of 25
17. Question
The thermodynamic parameters are
1. Temperature 2. Specific volume
3. Pressure 4. Enthalpy 5. Entropy
The Clapeyron Equation of state provides relationship betweenCorrect
The clapeyron equation dP/dT = entropy change/volume change This equation states that the slope of an univariant equilibrium plotted on a PT diagram is equal to the entropy change of the reaction divided by the volume change of the reaction.
Incorrect
The clapeyron equation dP/dT = entropy change/volume change This equation states that the slope of an univariant equilibrium plotted on a PT diagram is equal to the entropy change of the reaction divided by the volume change of the reaction.

Question 18 of 25
18. Question
Gibb`s free energy G is defined as
Correct
Incorrect

Question 19 of 25
19. Question
The solution in a transportation model (of dimension m x n) is said to be degenerate if it has
Correct
In a TP, if the number of nonnegative independent allocations is less than m + n – 1, there exists degeneracy.
Incorrect
In a TP, if the number of nonnegative independent allocations is less than m + n – 1, there exists degeneracy.

Question 20 of 25
20. Question
The management is interested to know the percentage of idle time of equipment. The trial study showed that percentage of idle time would he 20%. The number of random observations necessary for 95% level of confidence and +5% accuracy is
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Question 21 of 25
21. Question
The series 1 + 2 + 3 + ……. + n +…. is
Correct
Incorrect

Question 22 of 25
22. Question
If V is a differentiable vector function and f is a sufficient differentiable scalar function, then curl (fV) is equal to
Correct
Incorrect

Question 23 of 25
23. Question
If r = xi + yj + zk is the position vector of point P (x, y, z) and r = r then ∇. r^{n}r is equal to
Correct
Incorrect

Question 24 of 25
24. Question
A side and face cutter of 127 mm diameter has 10 teeth. It operates at a cutting speed of 13.5 in/mm and table feed of 108 mm/mm. The maximum chip thickness for a cutting depth of 5 mm, is
Correct
Incorrect

Question 25 of 25
25. Question
The principal cutting edge is 75°, while the auxiliary (end) cutting edge is 8°. Assume 6° clearance angle, inclination angle as – 5°, and the shank as 30 x 30 mm. What will be the side rake and back rake?
Correct
Incorrect