Engineering Sciences
GATE XE Basic Concepts PYQs
Build your understanding with focused practice from past exam papers.
How to practice Basic Concepts
Attempt a question, record the concept and assumptions, then check the available answer. Rework mistakes after revising the relevant concepts. Topic tags can overlap; review the question context.
Questions 1–10 of 16. Imported answers require independent review unless marked reviewed.
Question 91
Open questionXE-EMCQ1 markNeeds review
Which ONE of the following statements is CORRECT?
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 88
Open questionXE-EMCQ1 markNeeds review
A tank is divided into two compartments with one compartment containing a gas at a given pressure, while the second is completely evacuated. If the partition is removed, the gas occupies the entire compartment. Which one of the following statements is CORRECT?
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 108
Open questionXE-ENAT2 marksNeeds review
A particular temperature scale is obtained according to the relation:
where a and b are constants, and t is in °C.
The thermometric property as measured by the thermometer is
. The values of
at ice point and steam point are 6 and 9, respectively. The temperature (in °C) which gives
is __________ (rounded off to two decimal places).Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 109
Open questionXE-ENAT2 marksNeeds review
A piston-cylinder system contains 2 kg of wet steam at 90 °C with quality of 0.1. The piston is loaded with a linear spring. The steam is heated to 800 kPa and 250 °C on heating. The work done (in kJ) in this process is ______ (rounded off to two decimal places).
Use the following data:
At 90 °C:
kPa,
m³/kg,
m³/kgAt 250 °C and 800 kPa:
m³/kgLog in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 88
Open questionXE-EMCQ1 markNeeds review
A The number of properties required to fix the state of a system is given by ‘state postulate’. R The state of a simple compressible system is completely specified by two independent, intensive properties. About the statements A and R applied to a single-phase system,
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 89
Open questionXE-EMCQ1 markNeeds review
Which of the following is an extensive property of a system?
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 103
Open questionXE-ENAT2 marksNeeds review
A rigid tank of 2 m
internal volume contains 5 kg of water as a saturated liquid-vapor mixture at 400 kPa. Half of the mass of the saturated liquid in the tank is drained-off while maintaining constant pressure of 400 kPa in the tank. The final quality of the mixture remaining in the tank is ______ (rounded off to two decimal places).Use the following data for water:
At 400 kPa:
m
/kg,
m
/kg,
m
/kgLog in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 94
Open questionXE-ENAT1 markNeeds review
A vertical cylinder-piston device contains a fixed mass of gas in equilibrium. The cross-sectional area of the piston is 0.05 m
. For 150 kPa pressure of the gas in the cylinder, the mass of the piston is ______ kg (round off to 2 decimal places).Assume that the atmospheric pressure is 100 kPa and the acceleration due to gravity is 9.81 m/s
.Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 1
Open questionXE-EMCQ1 markNeeds review
If
and
are two independent intensive properties of a thermodynamic system, then which relation among the followings fails to identify
as another thermodynamic property?Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answerQuestion 2
Open questionXE-EMCQ1 markNeeds review
Internal energy of a thermodynamic system is defined by the
Your answerChoose one option.
Log in to check the answer
You can attempt this question now. Sign in to view the answer key, explanations and discussion.Log in to check answer