Question 1

If mach number is less than one then its flow is______________

Accepted Answer

A) subsonic flow 
B) turbulent flow 
C) laminar flow 
D) none of the mentioned 
A) subsonic flow 
B) turbulent flow 
C) laminar flow 
D) none of the mentioned A

Question 2

In De Laval Nozzle critical pressure ratio is given by (2/y+1)^(y/y-1).

Accepted Answer

A) True 
 B)False  True

Question 3

The ratio of the useful heat drop to the isentropic heat drop is called______________

Accepted Answer

A) condenser efficiency 
B) nozzle efficiency 
C) vacuum efficiency 
D) boiler efficiency 
A) condenser efficiency 
B) nozzle efficiency 
C) vacuum efficiency 
D) boiler efficiency B

Question 4

In fountains the type of nozzle used is

Accepted Answer

A) none of the mentioned 
B) turbulent jet 
C) high speed nozzle 
D) laminar jet 
A) none of the mentioned 
B) turbulent jet 
C) high speed nozzle 
D) laminar jet

Question 5

Compressible flow mainly deals with

Accepted Answer

A) solid dynamics 
B) liquid dynamics 
C) gas dynamics 
D) solid and liquid dynamics 
A) solid dynamics 
B) liquid dynamics 
C) gas dynamics 
D) solid and liquid dynamics

Question 6

Aeroderivative engines are larger.

Accepted Answer

A) True 
 B)False

Question 7

Aeroderivative engines have pressure ratios

Accepted Answer

A) greater than 30 
B) lesser than 30 and greater than 20 
C) greater than 50 
D) none of the mentioned 
A) greater than 30 
B) lesser than 30 and greater than 20 
C) greater than 50 
D) none of the mentioned

Question 8

When mach number is greater than one the flow is______________

Accepted Answer

A) subsonic 
B) supersonic 
C) laminar 
D) none of the mentioned 
A) subsonic 
B) supersonic 
C) laminar 
D) none of the mentioned

Question 9

Which among the following is the formula for volumetric flow rate?

Accepted Answer

A) q = v/a 
B) q = av 
C) q = a+v 
D) q = a-v 
A) q = v/a 
B) q = av 
C) q = a+v 
D) q = a-v

Question 10

De-Laval turbine is a______________

Accepted Answer

A) multi rotor impulse turbine 
B) impulse reaction turbine 
C) single rotor impulse turbine 
D) none of the mentioned 
A) multi rotor impulse turbine 
B) impulse reaction turbine 
C) single rotor impulse turbine 
D) none of the mentioned

Question 11

Which among the following is the formula for mass flow rate?

Accepted Answer

A) q = m/p 
B) q = mp 
C) q = m + p 
D) q = m - p 
A) q = m/p 
B) q = mp 
C) q = m + p 
D) q = m - p

Question 12

The Prandtl Number approximates

Accepted Answer

A) momentum diffusivity to thermal diffusivity 
B) thermal diffusivity to momentum diffusivity 
C) shear stress to thermal diffusivity 
D) thermal diffusivity to kinematic viscosity 
A) momentum diffusivity to thermal diffusivity 
B) thermal diffusivity to momentum diffusivity 
C) shear stress to thermal diffusivity 
D) thermal diffusivity to kinematic viscosity

Question 13

The steam leaves the nozzle at a

Accepted Answer

A) low pressure and a high velocity 
B) high pressure and a high velocity 
C) high pressure and a low velocity 
D) low pressure and a low velocity 
A) low pressure and a high velocity 
B) high pressure and a high velocity 
C) high pressure and a low velocity 
D) low pressure and a low velocity

Question 14

Rateau turbine is______________

Accepted Answer

A) pressure-velocity compounded turbine 
B) simple reaction turbine 
C) velocity compounded turbine 
D) pressure compounded turbine 
A) pressure-velocity compounded turbine 
B) simple reaction turbine 
C) velocity compounded turbine 
D) pressure compounded turbine

Question 15

Nozzle is used to control direction or characteristics of flow.

Accepted Answer

A) True 
 B)False

Question 16

Aeroderivative engines release higher emissions.

Accepted Answer

A) True 
 B)False

Question 17

The Parsons' reaction turbine has

Accepted Answer

A) only moving blades 
B) only fixed blades 
C) fixed and moving blades of different shape 
D) identical fixed and moving blades 
A) only moving blades 
B) only fixed blades 
C) fixed and moving blades of different shape 
D) identical fixed and moving blades

Question 18

Ratio of critical pressure to inlet pressure in known as______________

Accepted Answer

A) none of the mentioned 
B) pressure ratio 
C) critical pressure ratio 
D) isoentropic pressure ratio 
A) none of the mentioned 
B) pressure ratio 
C) critical pressure ratio 
D) isoentropic pressure ratio

Question 19

With the increase in pressure, the exit velocity______________

Accepted Answer

A) decreases 
B) increases 
C) same 
D) independent 
A) decreases 
B) increases 
C) same 
D) independent

Question 20

What is the critical pressure ratio for initially wet steam?

Accepted Answer

A) 0.582 
B) 0.546 
C) 0.577 
D) 0.601 
A) 0.582 
B) 0.546 
C) 0.577 
D) 0.601

If mach number is less than one then its flow is______________

In De Laval Nozzle critical pressure ratio is given by (2/y+1)^(y/y-1).

The ratio of the useful heat drop to the isentropic heat drop is called______________

In fountains the type of nozzle used is

Compressible flow mainly deals with

Aeroderivative engines are larger.

Aeroderivative engines have pressure ratios

When mach number is greater than one the flow is______________

Which among the following is the formula for volumetric flow rate?

De-Laval turbine is a______________

Which among the following is the formula for mass flow rate?

The Prandtl Number approximates

The steam leaves the nozzle at a

Rateau turbine is______________

Nozzle is used to control direction or characteristics of flow.

Aeroderivative engines release higher emissions.

The Parsons' reaction turbine has

Ratio of critical pressure to inlet pressure in known as______________

With the increase in pressure, the exit velocity______________

What is the critical pressure ratio for initially wet steam?

Friction, Mach Number, and Boiler Operations

Boiler and Fuel

Turbines, Heat Exchangers, and Refrigeration Cycles

Refrigeration and Air Conditioning System Components and Processes

Cooling Systems and Nozzles in Engineering

Understanding Fluid Mechanics and Turbines

Boiler Types and Operations

Boiler Technology and Operation: Salts, Features, Difficulties, and Draught Systems

Steam Boilers and Turbines: Types, Characteristics, and Applications

Understanding Steam Turbines: Ratios, Actions, and Factors

Steam Turbines and Power Cycles

Energy Recovery and Thermodynamics Processes

Condensers and Heat Transfer in Refrigeration and Air Conditioning Systems

Boiler Systems and Fluid Dynamics

Turbines, Cogeneration, Refrigeration, and Air Conditioning Systems

Filters

Exam 1: Nozzles, Fountains, and Compressible Flow

If mach number is less than one then its flow is______________

In De Laval Nozzle critical pressure ratio is given by (2/y+1)^(y/y-1).

The ratio of the useful heat drop to the isentropic heat drop is called______________

In fountains the type of nozzle used is

Compressible flow mainly deals with

Aeroderivative engines are larger.

Aeroderivative engines have pressure ratios

When mach number is greater than one the flow is______________

Which among the following is the formula for volumetric flow rate?

De-Laval turbine is a______________

Which among the following is the formula for mass flow rate?

The Prandtl Number approximates

The steam leaves the nozzle at a

Rateau turbine is______________

Nozzle is used to control direction or characteristics of flow.

Aeroderivative engines release higher emissions.

The Parsons' reaction turbine has

Ratio of critical pressure to inlet pressure in known as______________

With the increase in pressure, the exit velocity______________

What is the critical pressure ratio for initially wet steam?

Friction, Mach Number, and Boiler Operations

Boiler and Fuel

Turbines, Heat Exchangers, and Refrigeration Cycles

Refrigeration and Air Conditioning System Components and Processes

Cooling Systems and Nozzles in Engineering

Understanding Fluid Mechanics and Turbines

Boiler Types and Operations

Boiler Technology and Operation: Salts, Features, Difficulties, and Draught Systems

Steam Boilers and Turbines: Types, Characteristics, and Applications

Understanding Steam Turbines: Ratios, Actions, and Factors

Steam Turbines and Power Cycles

Energy Recovery and Thermodynamics Processes

Condensers and Heat Transfer in Refrigeration and Air Conditioning Systems

Boiler Systems and Fluid Dynamics

Turbines, Cogeneration, Refrigeration, and Air Conditioning Systems

Filters