Nuclear Power Plants - Mechanical Engineering Multiple choice Questions Answers

Nuclear Power Plants

Mechanical Engineering Multiple choice Questions Answers

“Nuclear Power Plants”

Mechanical Engineering MCQS

from FreePDfbook.com

Nuclear Power Plants Questions Answers

 

1. The efficiency of a nuclear power plant in comparsion to a conventional thermal power plant is
   (a) same
   (b) more
   (c) less
   (d) may be less or mote depending on size
   (e) unpredictable.
   Ans: c


2. Isotopes of same elements have

(a) same atomic number and different masses
(b) same chemical properties but different atomic numbers
(c) different masses and different atomic numbers
(d) different chemical properties and same atomic numbers
(e) same chemical properties and same atomic numbers.
Ans: b

.

.

.

.

.

90. The fuel needed, with reflector in nuclear power plant, in order to generate sufficient neutrons to sustain a chain reaction, would be
(a) more
(b) less
(c) same
(d) zero
(e) negative, i.e. fuel would be generated.
Ans: b

Nuclear Power Plants Questions and Answers PDF ::

In PDF file click here to download

 

Trust on Freepdfbook.com

Read More

INDUSTRIAL ENGINEERING - Mechanical Engineering Multiple choice Questions Answers

industrial engineering objective questions 

INDUSTRIAL ENGINEERING

 Mechanical Engineering Multiple choice Questions Answers

“INDUSTRIAL ENGINEERING”

Mechanical Engineering MCQS

from FreePDfbook.com

INDUSTRIAL ENGINEERING Questions Answers

1. A graphical device used to determine the break-even point and profit potential under varying conditions of output and costs, is known as
   (a) Gnatt chart
   (b) flow chart
   (c) break-even chart
   (d) PERT chart
   (e) Taylor chart.
   Ans: c


2. Break-even analysis consists of
   (a) fixed cost
   (b) variable cost
   (c) fixed and variable costs
   (d) operation costs
   (e) none of the above.
   Ans: c


3. Break-even analysis shows profit when
   (a) sales revenue > total cost
   (b) sales revenue = total cost
   (c) sales revenue < total cost
   (d) variable cost < fixed cost
   (e) none of the above.
   Ans: a


4. In braek-even analysis, total cost consists of
   (a) fixed cost
   (b) variable cost
   (c) fixed cost + variable cost
   (d) fixed cost + variable cost + over-heads
   (e) fixed cost + sales revenue.
   Ans: a










9. ...
   
   219. Simplex method is used for
   
   (a) linear programming
   (b) queuing theory
   (c) network analysis
   (d) value engineering
   (e) all of the above.
   
   220. Depreciation of machines is categorized under the head
   (a) direct expenses
   (b) indirect expenses
   (c) receipts
   (d) administrative expenses
   (e) indirect material costs.
   
   221. Depreciation of machines, according to income tax regulations is calculated on the basis of following method
   (a) straight line
   (b) sinking fund
   (c) machine hour
   (d) rate of return
   (e) declining balance.
   
   222. In project appraisal analysis, shadow prices are
   (a) used for lost items
   (b) used to convert inputs into cost and output into benefits
   (c) used to determine feasibility of project
   (d) taken as the basis for determining value of all the assets
   (e) none of the above,
   
   223. Cash discounts are reduction in price of goods
   (a) sold on credit
   (b) which depends on assurance of payment
   (c) which depends on prompt cash payment
   (d) obtainable on bad debt loans
   (e) which have good bargaining capacity of seller.

In PDF file click here to download

Trust on Freepdfbook.com

Read More

Refrigeration and Air Conditioning - Mechanical Engineering Multiple choice Questions Answers

Refrigeration and Air Conditioning

 Mechanical Engineering Multiple choice Questions Answers

refrigeration and air conditioning mcq pdf 

“Refrigeration and Air Conditioning”

Mechanical Engineering MCQS

from FreePDfbook.com

Refrigeration and Air Conditioning Questions Answers

1. Pick up the wrong statement. A refrigerant should have
   (a) Tow specific heat of liquid
   (b) high boiling point
   (c) high latent heat of vaporisation
   (d) higher critical temperature
   (e) low specific volume of vapour.
   Ans: b


2. A standard ice point temperature corresponds to the temperature of
   (a) water at 0°C
   (b) ice at – 4°C
   (c) solid and dry ice
   (d) mixture of ice, water and vapour under equilibrium conditions under NTP conditions
   (e) mixture of ice and water Under equilibrium conditions.
   Ans: e


3. Vapour compression refrigeration is some what like
   (a) Carnot cycle
   (b) Rankine cycle
   (c) reversed Camot cycle
   (d) reversed Rankine cycle
   (e) none of the above.
   Ans: e

 

.

.

.

.

.

.

.

.

90. The change in evaporator temperature in a refrigeration cycle, as compared to change in condenser temperature, influences the value of C.O.P.
(a) more
(b) less
(c) equally.
(d) unpredictable
(e) none of the above.
Ans: a

 

Refrigeration and Air Conditioning Questions and Answers PDF ::

In PDF file click here to download

Trust on Freepdfbook.com

Read More

Strength of Materials - Mechanical Engineering Multiple choice Questions Answers

strength of materials objective questions and answers pdf 

Strength of Materials

 Mechanical Engineering Multiple choice Questions Answers

“Strength of Materials”

Mechanical Engineering MCQS

from FreePDfbook.com

Strength of Materials Questions Answers

1. Strain is defined as the ratio of
(a) change in volume to original volume
(b) change in length to original length
(c) change in cross-sectional area to original cross-sectional area
(d) any one of the above
(e) none of the above.
Ans: d

2. Hooke’s law holds good up to
(a) yield point
(b) limit of proportionality
(c) breaking point
(d) elastic limit
(e) plastic limit.
Ans: b

3. Young’s modulus is defined as the ratio of
(a) volumetric stress and volumetric strain
(b) lateral stress and lateral strain
(c) longitudinal stress and longitudinal strain
(d) shear stress to shear strain
(e) longitudinal stress and lateral strain.
Ans: c

.

.

.

.

.

.

84. In a belt drive, the pulley diameter is doubled, the belt tension and pulley width remaining same. The changes required in key will be
(a) increase key length
(b) increase key depth
(c) increase key width
(d) double all the dimensions
(e) none of the above.
Ans: c

85. Shear stress induced in a shaft subjected to tension will be
(a) maximum at periphery and zero at center
(b) maximum at center
(c) uniform throughout
(d) average value in center
(e) none of the above.
Ans: e

STRENGTH OF MATERIALS QUESTIONS AND ANSWERS PDF ::

In PDF file click here to download

Trust on Freepdfbook.com

Read More

Steam Boilers Engines Nozzles and Turbines - Mechanical Engineering Multiple choice Questions Answers

Steam Boilers, Engines, Nozzles and Turbines

 Mechanical Engineering Multiple choice Questions Answers

“Steam Boilers, Engines, Nozzles and Turbines”

Mechanical Engineering MCQS

from FreePDfbook.com

Steam Boilers, Engines, Nozzles and Turbines Questions Answers

1. For water, at pressures below atmospheric,
   (a) melting point rises slightly and boiling point drops markedly
   (b) melting point rises markedly and boiling point drops markedly
   (c) melting point drops slightly and boiling point drops markedly
   (d) melting point drops slightly and boiling point drops slightly
   (e) none of the above.
   Ans: a


2. At very low temperature, the melting and boiling temperatures become equal. This temperature is
   (a) 373°K
   (b) 273.16°K
   (c) 303°K
   (d) 0°K.
   (e) 300°K.
   Ans: b


3. The critical pressure at which latent heat of vaporisation is zero is
   (a) 225.65 kgf/cm2
   (b) 273 kgf/cm2
   (c) 100 kgf/cm2
   (d) 1 kgf/cm2
   (e) – 1 kgf/cm2.
   Ans: a


4. The latent heat of steam at pressures greater than atmospheric in comparison to latent heat at atmospheric pressure is
   (a) less
   (b) more
   (c) equal
   (d) may be less or more depending on temperature
   (e) unpredictable.
   Ans: a

.

.

.

.

.

.

.

199. Feed water conditioning in thermal power plants in done to
(a) reduce hardness and for removal of solids
(b) increase efficiency-of thermal power plant
(c) increase *heat transfer rate
(d) increase steam parameters
(e) all of the above.
Ans: a

200. The basic job of feed water treatment in boilers is to overcome the problem of
(a) corrosion
(b) scale
(c) carryover
(d) embrittlement
(e) all of the above.
Ans: e

Steam Boilers, Engines, Nozzles and Turbines Questions and Answers PDF ::

In PDF file click here to download

 

Trust on Freepdfbook.com

 

Read More

Thermodynamics - Mechanical Engineering Multiple choice Questions Answers

thermodynamics objective questions

Thermodynamics

 Mechanical Engineering Multiple choice Questions Answers

Thermodynamics MCQ PDF

“Thermodynamics”

Mechanical Engineering MCQS

from FreePDfbook.com

Thermodynamics Questions Answers

1. Which of the following variables controls the physical properties of a perfect gas
   (a) pressure
   (b) temperature
   (c) volume
   (d) all of the above
   (e) atomic mass.
   Ans: d


2. Which of the following laws is applicable for the behavior of a perfect gas
   (a) Boyle’s law
   (b) Charles’law
   (c) Gay-Lussac law
   (d) all of the above
   (e) Joule’s law.
   Ans: d


3. The unit of temperature in S.I. units is
   (a) Centigrade
   (b) Celsius
   (c) Fahrenheit
   (d) Kelvin
   (e) Rankine.
   Ans: d


4. The unit of mass in S.I. units is
   (a) kilogram
   (b) gram
   (c) tonne
   (d) quintal
   (e) newton.
   Ans: a


5. The unit of time in S.I. units is
   (a) second
   (b) minute
   (c) hour
   (d) day
   (e) year.
   Ans: a

.

.

.

.

.

.

.

.

158. The following cycle is used for air craft refrigeration
(a) Brayton cycle
(b) Joule cycle
(c) Carnot cycle
(d) Bell-Coleman cycle
(e) Reversed-Brayton cycle.
Ans: e

159. Gas turbine cycle consists of
(a) two isothermals and two isentropics
(b) two isentropics and two constant volumes
(c) two isentropics, one constant volume and one constant pressure
(d) two isentropics and two constant pressures
(e) none of the above.
Ans: d

160. The thermodynamic difference between a Rankine cycle working with saturated steam and the Carnot cycle is that
(a) carnot cycle can’t work with saturated steam
(b) heat is supplied to water at temperature below the maximum temperature of the cycle
(c) a rankine cycle receives heat at two places
(d) rankine cycle is hypothetical
(e) none of the above.
Ans: b

Thermodynamics Questions and answers PDF:

In PDF file click here to download

 

Trust on Freepdfbook.com

Read More

THEORY of MACHINES - Mechanical Engineering Multiple choice Questions Answers

THEORY of MACHINES

 Mechanical Engineering Multiple choice Questions Answers

Theory of Machines MCQ pdf

“THEORY of MACHINES”

Mechanical Engineering MCQS

from FreePDfbook.com

THEORY of MACHINES Questions Answers

1. Which of the following disciplines provides study of inertia forces arising from the combined effect of the mass and the motion of the parts
   (a) theory of machines
   (b) applied mechanics
   (c) mechanisms
   (d) kinetics
   (e) kinematics.
   Ans: d


2. Which of the following disciplines provides study of relative motion between the parts of a machine
   (a) theory of machines
   (b) applied mechanics
   (c) mechanisms
   (d) kinetics
   (e) kinematics.
   Ans: e


3. Which of the following disciplines provides study of the relative motion between the parts of a machine and the forces acting on the parts
   (a) theory of machines
   (b) applied mechanics
   (c) mechanisms
   (d) kinetics
   (e) kinematics.
   Ans: a


4. The type of pair formed by two elements which are so connected that one is constrained to turn or revolve about a fixed axis of another element is known as
   (a) turning pair
   (b) rolling pair
   (c) sliding pair
   (d) spherical pair
   (e) lower pair,
   Ans: a

.

.

.

.

.

.

.

.

153. Angle of action of cam is defined as the angle
(a) during which the follower returns to its initial position
(b) of rotation of the cam for a definite displacement of the follower
(c) through which the cam rotates during the period in which the follower remains in the highest position
(d) moved by the cam from the instant the follower begins to rise, till it reaches its highest position
(e) moved by the cam from beginning of ascent to the termination of descent.
Ans: e

154. Angle of dwell of cam is defined as the angle
(a) during which the follower returns to its initial position
(b) of rotation of the cam for definite dis¬placement of the follower
(c) through which the cam rotates during the period in which the follower remains in the highest position
(d) moved by the cam from the instant the follower begins to rise, till it reaches its highest position
(e) moved by the cam from a beginning of ascent to the termination of descent.
Ans: c

155. Angle of ascent of cam is defined as the angle
(a) during which the follower returns to its initial position
(b) of rotation of the cam for a definite displacement of the follower
(c) through which the cam rotates during the period in which the follower remains in highest position
(d) moved by the cam from the instant the follower begins to rise, till it reaches its highest position
(e) moved by the cam from beginning oi ascent to the termination of descent.
Ans: d

THEORY of MACHINE Questions and Answers PDF ::

 

In PDF file click here to download

Trust on Freepdfbook.com

Read More

ENGINEERING MECHANICS - Mechanical Engineering Multiple choice Questions Answers

ENGINEERING MECHANICS

Mechanical Engineering Multiple choice Questions Answers

engineering mechanics mcq pdf 

“ENGINEERING MECHANICS”

Mechanical Engineering MCQS

from FreePDfbook.com

ENGINEERING MECHANICS Questions Answers

1. The unit of force in S.I. units is
   (a) kilogram
   (b) newton
   (c) watt
   (d) dyne
   (e) joule.
   Ans: b


2. 2. The unit of work or energy in S.I. units is
   (a)     newton
   (b)     pascal
   (c) kilogram meter
   (d) watt
   (e)     joule.
   Ans: e


3. 3. The unit of power in S.I. units is
   (a)     newton meter
   (b)     watt
   (c)     joule
   (d)     kilogram meter/sec.
   (e) pascal per sec.
   Ans: b

4. Forces are called concurrent when their lines of action meet in
(a) one point
(b) two points
(c) plane
(d) perpendicular planes
(e) different planes.
Ans: a

.

.

.

.

.

.

139. In ideal machines

(a) mechanical advantage is greater than velocity ratio
(b) mechanical advantage is equal to velocity ratio
(c) mechanical advantage is less than velocity ratio
(d) mechanical advantage is unity
(e) none of the above.
Ans: b

140. A cable with a uniformly distributed load per horizontal meter run will take the following shape
(a) straight line
(b) parabola
(c) hyperbola
(d) elliptical
(e) part of a circle.
Ans: b

ENGINEERING MECHANICS Questions and Answers PDF ::

In PDF file click here to download

Trust on Freepdfbook.com

Read More