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HAL ME Mock Test - 1

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Question 1

Select the most appropriate synonym of the given word.

DECREPIT

Question 2

Which city in India is known as the ‘Boston of East’ ?

Question 3

Select the related word/letters/ number from the given alternatives.
SGH : TIJ : : UKL : ?

Question 4

Which country has highest number of international tourism arrivals?

Question 5

Choose the Venn diagram from the given options that best represents the relationship amongst the following classes.
Mothers, Doctors, Homo Sapiens

Question 6

A cross flow type air heater has an area of 50 m2. The overall heat transfer coefficient is 100 W/m2 K and heat capacity of both hot and cold stream is 1000 W/ K. The value of NTU is

Question 7

Match the following products with preferred manufacturing processes:

Question 8

Given that the peripheral speed of the grinding wheel of 100 mm diameter for cylindrical grinding of a steel workpiece is 30 m/s, what will be the estimated rotational speed of the grinding wheel in revolution per minute (rpm)?

Question 9

The slope of isochoric process on T-s diagram will be_____.

Question 10

If 3000 kJ/kg heat is added to the system & work done on the system is 6000kJ/kg, then change in internal energy is given by

Question 11

While cooling, a cubical casting of side 40 mm undergoes 3%, 4% and 5% volume shrinkage during the liquid state, phase transition and solid state, respectively. The volume of metal compensated from the riser is

Question 12

Streamline and equipotential lines in a flow field __________.

Question 13

The pressure at any given point of a non-moving fluid is called the ____________

Question 14

The radiative heat transfer rate per unit area (W/m2) between two plane parallel gray surfaces whose emissivity is 0.9 and maintained at 400 K and 300K is _________.

Question 15

The process of reheating the martensitic steel to reduce its brittleness without any significant loss in its hardness is

Question 16

The effect of friction in a nozzle......dryness fraction of steam

Question 17

The inlet temperature of a counter flow heat exchanger for hot and cold fluid is 170 and 30. The ratio of capacity rate for hot and cold fluid is 1. Find the LMTD (degree celcius) of the heat exchanger. Take effectiveness ε=0.7

Question 18

The time taken to drill a hole through a 25 mm thick plate with the drill rotating at 300 rpm and moving at a feed rate of 0.25 mm/revolution is

Question 19

The machined work-piece is free of residual mechanical stresses in which of the following non-conventional machining processes?

Question 20

If the length of the cantilever beam is halved, the natural frequency of the mass M at the end of this cantilever beam of negligible mass is increased by a factor of
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