WorksheetsQUIZZ EVENT
Total questions: 40
Worksheet time: 40mins
Which of the following is a thermodynamics law
Zeroth law of thermodynamics
Faraday’s Law of thermodynamics
Ideal Gas Law of thermodynamics
Boyle’s Law of thermodynamics
Which of the following follows the Carnot theorem?
Heat engines
Gas turbine engines
Gas compressors
All of the mentioned
Which of the following is chosen as the standard thermometric substance?
Liquid
Solid
Gas
d) None of the mentioned
Heat flow into a system is ____, and heat flow out of the system is ________
positive, positive
negative, negative
negative, positive
positive, negative
In which of the following systems does mass transfer occur across the system boundary?
isolated system
closed system
open system
none of the mentioned
When more than one fluid stream enters or leaves the control volume, which of the following type of balance is taken?
mass balance
energy balance
mass balance and energy balance
none of the mentioned
The entropy of an isolated system can never ____
decrease
be zero
increase
none of the mentioned
The enthalpy and internal energy are the function of temperature for______
all gases
steam
water
ideal gas
Joule was the first to prove that heat is a type of energy, laying the groundwork for the fundamental law of thermodynamics.
False
True
Both
Which of the following type of motion does Shaft uses to do work?
vertical motion
horizontal motion
rotational motion
none of the mentioned
What is fluid mechanics?
Study of fluid behaviour at rest
Study of fluid behaviour in motion
Study of fluid behaviour at rest and in motion
Study of fluid behaviour at rest and in motion
Principle of fluid mechanics works on the utilization of________
Velocity
Accelerating mass
Volume
Work
Which of the following is a type of fluid based on viscosity?
Real Fluid
Ideal Fluid
Newtonian Fluid
All of the mentioned
Pressure variation for compressible fluid is maximum for which of the following kind of process?
Adiabatic
Quasi Static
Isothermal
None of the mentioned
Which among the following is not global parameters of fluid?
Mass flow rate
Density
Viscosity
External diameter
Which among the following have the same forces acting on them?
Dynamic similarity
Geometric similarity
Conditional similarity
Kinematic similarity
Which of the following equation must be perfunctorily satisfied while dealing with fluid flow problems?
Newton’s third law
Newton’s third law
Continuity equation
Newton’s second law
Which of the following is the mathematical technique used to predict physical parameters?
Dimensional analysis
Dimensional analysis
Pressure analysis
Combustion analysis
Which among the following is referred to as the temperature at a stagnation point in the flow of fluids in fluid mechanics and thermodynamics.
Absolute temperature
Absolute temperature
Stagnation temperature
Stagnation temperature
. Stagnation point is the point in fluid mechanics where the velocity of the fluid at that point is _____
unity
constant
infinite
zero
Which of the following is used to produce quality screw threads?
Thread casting
Thread cutting with single point tool
Thread milling ad cutting with single point tool
Thread chasing
. In surface finishing operation one should use a sharp tool with a ______ feed and _______ Speed of rotation of the job.
Maximum, maximum
Minimum, maximum
Maximum, minimum
Minimum, minimum
. Which of the following is correct about series of range of speed in simple lathe?
Geometric progression
Arithmetic progression
Logarithmic progression
Harmonic progression
In which of the following, tail stock method of taper turning operation will be preferred more?
Internal tapers
Small tapers
Steep tapers
Long slender tapers
Which of the following can produce both external as well as internal threads?
Die threading with self‐opening die heads
Thread tapping with taps
Thread milling and multiple‐thread cutters
Thread chasing with multiple‐rib chasers
Distance from one point of thread to the next corresponding point is known as
Pitch
Major diamete
Thread angle
Depth of threads
Let screw of 10mm pitch is needed to be cut on lathe machine. Lead screw of lathe has pitch of 6mm. Which of the following statement is correct?
Speed of lead screw is greater than speed of spindle
Speed of lead screw is less that speed of spindle
Speed of lead screw is equal to speed of spindle
None of the mentioned
Distance measured normal to the axis of part, between crest and root of thread is known as
Pitch
Depth of threads
Thread angle
Major diameter
Which of the following can be effectively used for holding eccentric job?
Four jaw chuck
Three jaw chuck
Both three jaw chuck and four jaw chuck
Two jaw chuck
Which of the following is mostly used for holding bored part of the job?
Mandrels
Angle plate
Collet
Dogs
The flow through a nozzle is regarded as
constant volume flow
constant pressure flow
isothermal flow
isentropic flow
The pressure at which the steam leaves the nozzle is known as back pressure.
Correct
Incorrect
Both
In a nozzle, whole frictional loss is assumed to occur between
inlet and thoroat
inlet and outlet
throat and exit
all of these
The turbine, in which the general direction of the steam flow is parallel to the turbine axis, is called axial flow turbines
True
False
Both
The critical pressure gives the velocity of steam at the throat equal to the velocity of sound.
Agree
Disagree
Thermal equilibrium means that the flow of steam is
isothermal
isentropic
hyperbolic
polytropic
The discharge is __________ at critical pressure.
zero
minimum
maximum
maximum & minimum
The steam leaves the nozzle at a
high pressure and a low velocity
high pressure and a high velocity
low pressure and a low velocity
low pressure and a high velocity
The action of steam in a steam turbine is
static
dynamic
static and dynamic
neither static nor dynamic
The blade velocity coefficient is ratio of relative velocity of steam at outlet tip of the blade to the relative velocity of steam at inlet tip of the blade.
True
False
