ESE ME 2018: Mini Mock Test- 3 for ESE & GATE ME Exams

Question 1

Consider the following statements:
1) The efficiency of heat transfer in a condenser will improve by increase of the overall heat transfer coefficient.
2) The efficiency of heat transfer in a condenser will improve by increase of the velocity of flow of water in the tube.
3) The difference between the temperature of steam entering the condenser and the inlet water temperature should be maximum for maximum efficiency.
Which of the above statements are correct?

Question 2

Which among the following represents components of a Queuing System?

Question 3

Flue gas analysis in power plant measures:
i. presence of excess oxygen in flue gas
ii. presence of excess of carbon monoxide in flue gas
iii. checking of carbon dioxide gas

Question 4

In PERT, expected activity completion time will not involve:

Question 5

A: An object with a density less than water floats in water.
R: The buoyant force is equal to the weight of fluid displaced.

Question 6

Rahul lifts a box up and kept the box in the next room. While lifting the box, Rahul moved with constant speed and kept the box in other room. Find the work done by Rahul on the box while walking across the floor at constant speed?

Question 7

In a furnace the heat loss through the 150 mm thick refractory wall lining is estimated to be 50 W/m². If the average thermal conductivity of the refractory material is 0.05 W/mK, the temperature drop across the wall will be:

Question 8

Which among the following is a space truss representation?

Question 9

In link frame shown, the number of link offset is:
example3

Question 10

Select the correct options by matching?
Group 1
I) Froude number
II) Weber number
III) Euler number
IV) Grashof number
Group 2
A) Local acceleration to heat transfer
B) Inertial force to gravity force
C) Inertial force to pressure force
D) Thermal buoyancy force to viscous force
E) Inertial force to surface tension

Question 11

Endurance limit is of primary concern in the design of a/an
1) rotating shaft
2) industrial structure
3) column
4) machine base
Which of the above is/are correct?

Question 12

In rigid flanged coupling, bolts will connect two shafts that transmit power due to:
i. Shear force
ii. Bending moment
iii. Axial force
iv. Torsion moment

Question 13

A flywheel fitted to a steam engine has a mass of 500 kg and radius of gyration 300 mm. The starting torque is 900 N m. What is the kinetic energy after 10 s ?

Question 14

A system executes a cyclic process during which there are two processes aa given below:

What will be work interaction in process ₂

Question 15

For a material following Hooke’s law, the values of elastic and shear moduli are 3 × 10⁵ MPa and 1.2 × 10⁵ MPa respectively. The value for bulk modulus is

Question 16

Nickel alloys are not used in:

Question 17

Which one among the following is the most effective strengthening mechanism of nonferrous metal?

Question 18

In the reverted gear train shown, Motion of which pair of gears are like in nature?

Question 19

For the case of a slender column of the length L and flexural rigidity EI built in its base and free at the top, the Euler’s critical buckling load is

Question 20

If two similar dimensional parallel plates are welded using butt welding with electric arc, then on change of plate thickness, the welding will now be done by