GATE 2021 ME : Toppers Quiz 19 (App update required to attempt this test) for ESE & GATE ME Exams

Question 1

How many degrees of freedom does the below mechanism have?

Question 2

The follower starts from rest at beginning and it comes to rest at end of stroke. During its travel the follower may follow approximately with of the following motion :

Question 3

Match List-I (Cycle) with List-II (Equipment) and select the correct answer using the code given below the lists.
List-I
A. Air refrigeration
B. Vapour Compression refrigeration
C. Vapour absorption refrigeration
D. Steam jet refrigeration
List-II
(1). Absorber
(2). Flash chamber
(3). Turbine
(4). Compressor

Question 4

Pitot tube is used for measurement of _______.

Question 5

A furnace has a 20 cm thick wall with thermal conductivity 0.8 W/m-k. For the same heat loss from the furnace , what will be the thickness of the wall if the thermal conductivity of the material is 0.16 W/m-k?

Question 6

Match list-I with List-II and select the correct answer using the codes given below the list:

List –I

(Material properties)

A) Ductility

B) Toughness

C) Endurance limit

D) Resistance to penetration

List-II

(Test to determine properties)

1) Impact test

2) Fatigue test

3) Tension test

4) Hardness test

Question 7

A turbine generates a power of 19600 kW while operating under a head of 256 m. The turbine runs at 200 rpm. The specific speed of the turbine is:

Question 8

Match List-I (Gas cycles) with List-ii (Thermodynamic Coordinates) and select the correct answer using the code given below the lists:
List-i
A). Carnot cycle
B). Brayton cycle
C). Ericsson cycle
D). Stirling cycle
List-ii
1). Pressure-Entropy
2). Pressure-Temperature
3). Temperature-Volume
4). Temperature-Entropy

Question 9

In the queuing theory, if the arrivals in a single server model follows Poisson distribution, the time between arrivals will follows a

Question 10

Which of the following is an advanced finishing processes used for gears?

Question 11

The heat transfer rate in the condenser of a refrigerator (in kJ/h) which has a refrigeration capacity of 12000 kJ/h when power input is 0.75 kW is _________ kJ/hr.

Question 12

Centre of gravity of a triangle lies at the point of concurrence of

Question 13

A thin cylindrical vessel of 3.2 m diameter and 5 m long is subjected to a circumferential tensile stress of 140 N/mm² and axial tensile stress of 70 N/mm². If the volumetric strain of the vessel is 14×10^-4, then the Poisson’s ratio of the material will be (Neglect the compressive stress on the walls and take E = 2×10⁵ N/mm²)

Question 14

A rectangular very long fin 20 × 5 × 2 cm³ is attached to the body of an automobile engine of 320° C temperature & surrounding temperature 30° C. If the convective heat transfer coefficient of surrounding air to

conductivity of material of fin is

Then the temperature gradient at the base of fin in (k/cm).

Question 15

Through holes of 10 mm diameter are to be drilled in a steel plate of 20 mm thickness. Drill spindle speed is 300 rpm, feed 0.2 mm/rev and drill point angle is 120⁰. Assuming drill over travel of 2 mm, the time for producing a hole will be

Question 16

A 0.15 m diameter journal run in a bearing 0.3 m long. The lubricant used has a specific gravity of 0.855 and a kinematic viscosity 1.81 stokes. If the radial clearance may be assumed to be uniform and equal to 0.05 mm, determine the power required to overcome the viscous resistance of lubricant when the journal rotates at 300 r.m.p.?

Question 17

A 10 mm × 10 mm rod of a material is subjected to an axial pull of 4000 N. it was found that the lateral dimension of the rod changed to 9.9 mm × 9.9 mm. The Poisson’s ratio is (take modulus of rigidity of the material = 600 MPa)

Question 18

A cylindrical container contains milk upto a height H and pressure at lowest point is P. If the diameter of the cylinder is reduced by 50 % with milk remaining at same height H , the pressure at lowest point will be ______.

Question 19

A company produce 4800 parts per day and sells them at approximately half of the rate. The setup cost is Rs 1000 and carrying cost is Rs 5 per unit. The annual demand is 480000 per years. The length of each production will be

Question 20

A piston cylinder device contains 1 kg of fluid at 40 atm and initial volume 0.04 m³. The fluid is allowed to expand reversibly following the process pv^1.45=constant ,so that volume becomes double. The fluid is then cooled at constant pressure until the piston comes back to original position. Keeping this piston unaltered,the heat is added reversibly to restore it to the initial pressure.The total work done (in KJ) in the cycle is ____.