GATE Mechanical Engineering Mock Test, GATE ME Test 2020
GATE Mechanical Engineering Online Test 2, GATE ME Test 2021
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GATE Mechanical Engineering Online Test 2, GATE ME Test 2021. Take GATE 2021 Exams Online Test, GATE 2021 Mock Test, GATE 2021 Quiz. GATE Mechanical Engineering Full online mock test paper is free for all students. GATE 2021 ME Series 2 online Test 2021 in English. Take GATE 2021 Mock Test in English from below, GATE Quiz 2021 Series 2. 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 2 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 2 by Click on Below “Start Quiz Button”
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Question 1 of 25
1. Question
Load W produces a force of magnitude 120 kN in the member AB of the cantilever truss shown in figure. For this loading, forces in members AE and FE of the truss are
Correct
Incorrect

Question 2 of 25
2. Question
Blocks A and B of masses 40 kg and 60 kg respectively are placed on a smooth surface as shown in figure and the spring connected between them is stretched a distance 2 m. If they are released from rest, the speeds of both blocks the instant the spring becomes unstretched is (Take k = 150 N/m)
Correct
Incorrect

Question 3 of 25
3. Question
A 10 cm long and 5 cm diameter steel rod fits snugly between two rigid walls 10 cm apart at room temperature.
Young’s modulus of elasticity and coefficient of linear expansion of steel are 2 x 10^{6} kgf/cm^{2} and 12 x 10^{– 6} /°C respectively. The stress developed in the rod due to a 100°C rise in temperature will be
Correct
Incorrect

Question 4 of 25
4. Question
A compound train consisting of spur, bevel and spiral gears is shown in the given figure along with the teeth numbers marked against the wheels. Overall speed ratio of the train is
Correct
Incorrect

Question 5 of 25
5. Question
When a system is taken from state A to state B along the path ACB, 180 kJ of the heat flows into the system and it does 130 kJ of work (as shown in the figure below).
How much heat will flow into the system along the path ADB if the work done by it along the path is 40 kJ?Correct
Incorrect

Question 6 of 25
6. Question
A system of 100 kg mass undergoes a process in which its specific entropy increases from 0.3 kJ/kgK to 0.4 kJ/kgK. At the same time, the entropy of the surroundings decreases from 80 kJ/K to 75 kJ/K.
The process isCorrect
Incorrect

Question 7 of 25
7. Question
The internal energy of a certain system is a function of temperature alone and is given by the formula E = 25 + 0.25t kJ. If this system executes a process in which the work done by it, per degree temperature increase, is 0.75 kNm, then the heat interaction per degree temperature increase, in kJ, is
Correct
E = 25+.25t
dE/dt= .25 kj per degree centigrate
and dW/dt = .75 kj per degree centigrate
So from the first law of tbermodynamics
dQ= dE + dW = .25 + .75 = 1.00 kj per degree centigrateIncorrect
E = 25+.25t
dE/dt= .25 kj per degree centigrate
and dW/dt = .75 kj per degree centigrate
So from the first law of tbermodynamics
dQ= dE + dW = .25 + .75 = 1.00 kj per degree centigrate 
Question 8 of 25
8. Question
The given figure shows the Klein`s construction for acceleration of the slider crank mechanism
Which one of the following quadrilaterals represents the required acceleration diagram?Correct
Incorrect

Question 9 of 25
9. Question
In the epicyclic gear train shown in the given figure, A is fixed. A has 100 teeth and B has 20 teeth. If the arm C makes three revolutions, the number of revolutions made by B will be
Correct
Incorrect

Question 10 of 25
10. Question
A single block brake is shown in figure. The diameter of the drum is 250 mm and the angle of contact is 90°. If the operating force of 700 N is applied at the end of a lever and the coefficient of friction between the drum and the lining is 0.35, determine the torque that may be transmitted by the block brake.(Give your answer upto 2 decimal places)
Correct
Incorrect

Question 11 of 25
11. Question
Consider a gray and opaque surface at 0°C in an environment at 25°C. The surface has an emissivity of 0.8. If 300 W/m^{2}is the radiation incident on the surface, the radiosity of the surface is
Correct
Incorrect

Question 12 of 25
12. Question
Consider a horizontal 0.7 m wide and 0.85 m long plate in a room at 30°C. Top side of the plate is insulated while the bottom side is maintained at 0°C. The rate of heat transfer from the room air to the plate by natural convection is
(For air, k = 0.02476 W/m °C, Pr = 0.7323, v = 1.47 x 10^{5} m^{2}/s)Correct
Incorrect

Question 13 of 25
13. Question
Match List I (Cycle operating between fixed temperature limits) with List II (Characteristics of cycles efficiency η temperature) and select the correct answer using the codes given below the lists:
ListI ListII a. Otto cycle 1. η depends only upon temperature limits b. Diesel cycle 2. η depends only on pressure limits c. Carnot cycle 3. η depends on volume compression ratio d. Brayton cycle 4. η depends on cutoff ratio and volume compression ratio Correct
Incorrect

Question 14 of 25
14. Question
Consider the data given in the following table:
Given the fact that production in regular and overtime is limited to 650 and 150 respectively, the balance demand of 100 units in the 4^{th} period can be met byCorrect
In the 4^{th} period, since regular production is limited to 650 and overtime is limited to 150, the balance demand of 100 units in the 4^{th} period can be met by using regular production in period 1. Demand is only 500 but production capacity in regular period can he increased to 600 to meet the demand.
Incorrect
In the 4^{th} period, since regular production is limited to 650 and overtime is limited to 150, the balance demand of 100 units in the 4^{th} period can be met by using regular production in period 1. Demand is only 500 but production capacity in regular period can he increased to 600 to meet the demand.

Question 15 of 25
15. Question
Time estimates of an activity in a PERT network are optimistic time t_{o} = 9 days; pessimistic time t_{p} = 21 days and most likely time t_{m }= 15 days. The approximate probability of completion of this activity in 13 days is
Correct
Incorrect

Question 16 of 25
16. Question
The design specifications of a 2 m long solid circular transmission shaft require that the angle of twist of the shaft not exceed 3° when a torque of 9 kNm is applied.
Which of the following is the required diameter of the shaft if the shaft is made of a steel with an allowable shearing stress of 90 MPa and a modulus of rigidity of 77 GPa?(Give your answer to the nearest 1 decimal place.)Correct
Incorrect

Question 17 of 25
17. Question
The design specifications of a 2 in long solid circular transmission shaft require that the angle of twist of the shaft not exceed 3° when a torque of 9 kNm is applied.
Which of the following is the required diameter of the shaft if the shaft is made of a brass with an allowable shearing stress of 35 MPa and a modulus of rigidity of 42 GPa?Correct
Incorrect

Question 18 of 25
18. Question
The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pressure gage reads 210 kPa. The volume of the tire is 0.025 m^{3} and the atmospheric pressure is 100 kPa.
What will be the pressure rise in the tire when the air temperature in the tire rises to 50°C?Correct
Incorrect

Question 19 of 25
19. Question
The pressure in an automobile tire depends on the temperature of the air in the tire. When the air temperature is 25°C, the pressure gage reads 210 kPa. The volume of the tire is 0.025 m^{3} and the atmospheric pressure is 100 kPa.
The amount of air that must he bled off to restore pressure to its original value at this temperature, isCorrect
Incorrect

Question 20 of 25
20. Question
A uniform rectangular rod having the crosssection of 0.17 m x 0.31 m is shown in figure:
The specific weight of the rectangular rod in kN/m^{3 }will be
(Calculate the approximate answer upto 2 decimal places.)Correct
Incorrect

Question 21 of 25
21. Question
A uniform rectangular rod having the crosssection of 0.17 m x 0.31 m is shown in figure.
What will be the tension in string?
(Give your answer in whole number and in newtons.)Correct
Incorrect

Question 22 of 25
22. Question
A cold rolled steel cup with an inside radius of 30 mm and a thickness of 3 mm is to be drawn from a blank of diameter 40 mm. The shear yield stress and the maximum allowable stress of the material can be taken as 210 N/mm^{2} and 600 N/mm^{2} respectively.
What will be the drawing force, if the coefficient of friction µ = 0.1 and β = 0.05?Correct
Incorrect

Question 23 of 25
23. Question
A cold rolled steel cup with an inside radius of 30 mm and a thickness of 3 mm is to be drawn from a blank of diameter 40 mm. The shear yield stress and the maximum allowable stress of the material can be taken as 210 N/mm^{2} and 600 N/mm^{2} respectively.
What will be the minimum possible radius of the cup which can he drawn from the given blank without causing a fracture?Correct
Incorrect

Question 24 of 25
24. Question
Let N = 1421 x 1423 x 1425. What is the remainder when N is divided by 12?
Correct
When we divide N by 12, the remainder for the expression will be the same as the remainder for 5 x 7 x 9. Now 35 x 9, when divided by 12, we get the remainder 11 x 9 = 99. Finally divided it by 12, we get the reminder of N as 3.
Incorrect
When we divide N by 12, the remainder for the expression will be the same as the remainder for 5 x 7 x 9. Now 35 x 9, when divided by 12, we get the remainder 11 x 9 = 99. Finally divided it by 12, we get the reminder of N as 3.

Question 25 of 25
25. Question
There are 60 students in a class. These students are divided into three groups A, B and C of 15, 20 and 25 students each. The groups A and C are combined to form group D. What is the average weight of the students in group D?
Correct
There is no indication of weights of the students in the question, i.e. groups A, B and C. Therefore, it is not possible to find the relation between the groups A, B, C and D.
Incorrect
There is no indication of weights of the students in the question, i.e. groups A, B and C. Therefore, it is not possible to find the relation between the groups A, B, C and D.