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 * Home
 * Mechanical Engineering
 * Machine Dynamics


MACHINE DYNAMICS MCQ MECHANICAL ENGINEERING

Attempt now to check your rank among 19 students! 50 Questions 30 Mins
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ABOUT MACHINE DYNAMICS

Following are some of the multiple choice questions on the Machine Dynamics with
answers that will help the students in developing their knowledge.


MACHINE DYNAMICS MCQ


1. IF THE RELATIVE MOTION BETWEEN THEM IS COMPLETELY OR SUCCESSFULLY CONSTRAINED
THEN THE PAIR IS KNOWN AS -------

 * Bookmark
 * Report
 * Discuss

 * rolling pair
 * kinematic pair
 * sliding pair
 * cylindrical pair


2. A GIRL PUSHES A BOX ACROSS THE FLOOR. DID SHE DO WORK?

 * Bookmark
 * Report
 * Discuss

 * no
 * yes


3. SECONDARY SUCCESSION IS MOST LIKELY TO OCCUR

 * Bookmark
 * Report
 * Discuss

 * on a volcanic island
 * after a rainstorm
 * after a Thanksgiving Turkey dinner
 * after a forest fire


4. AT WHAT AMOUNT OF YEAST DOES THE POPULATION IN FIGURE 14.3 LEVEL OFF?

 * Bookmark
 * Report
 * Discuss

 * 3.0 mg/cc
 * 1.5 mg/cc
 * 6.0 mg/cc
 * 4.5 mg/cc


5. WRITE AN EQUATION TO SHOW A RELATIONSHIP BETWEEN THE INPUT AND THE OUTPUT

 * Bookmark
 * Report
 * Discuss

 * a x 9 = b
 * a ÷ 8 = b
 * a ÷ 9 = b
 * b ÷ 8 = b


6. WHAT IS THE NAME FOR THIS LEVELING OFF SHOWN IN THE GRAPH?

 * Bookmark
 * Report
 * Discuss

 * logistic line
 * carrying capacity
 * climax point
 * mediocre


7. AFTER HOW MANY HOURS DOES THE YEAST POPULATION SHOWN IN THE GRAPH REACH ITS
CARRYING CAPACITY?

 * Bookmark
 * Report
 * Discuss

 * 15 hours
 * 10 hours
 * 6 hours
 * At the start


8. WHAT IS THE AMOUNT OF YEAST SHOWN IN THE GRAPH AT THE 6-HOUR MARK?

 * Bookmark
 * Report
 * Discuss

 * 6.0 mg/cc
 * 3.0 mg/cc
 * 1.5 mg/cc
 * 10 mg/cc


9. WHAT 2 FACTORS DECREASE POPULATION SIZE?

 * Bookmark
 * Report
 * Discuss

 * Immigration, Births
 * Emigration, Births
 * Emigration, Deaths
 * Immigration, Deaths


10. THE BRANCH OF THEORY OF MACHINES THAT DEALS WITH FORCES AND THEIR EFFECTS
WHILE THE MACHINE PARTS ARE AT REST.

 * Bookmark
 * Report
 * Discuss

 * KINEMATICS
 * KINETICS
 * STATIC
 * DYNAMICS


11. DETERMINE WHICH RULE BEST REPRESENTS THE EXPRESSION THE FUNCTION MACHINE
USED

 * Bookmark
 * Report
 * Discuss

 * P x 5
 * P + 5
 * P x 8
 * P x 9 + 8


12. THE BRANCH OF MECHANICS WHICH DEALS WITH ONLY MOTIONS AND NOT WITH THE
FORCES

 * Bookmark
 * Report
 * Discuss

 * STATIC
 * KINEMATICS
 * KINETICS
 * DYNAMICS


13. ---------IS A COMBINATION OF RIGID OR RESTRAINING PARTS OR BODIES FROM WHICH
THE MACHINE IS ASSEMBLED.

 * Bookmark
 * Report
 * Discuss

 * MACHINE
 * STRUCTURE
 * MECHANISM
 * CONNECTING ROD


14. A---------- IS AGAIN A COMBINATION OF LINKS CONNECTED TO EACH OTHER BUT NO
RELATIVE MOTION EXISTS BETWEEN THEM.

 * Bookmark
 * Report
 * Discuss

 * MACHINE
 * CONNECTING ROD
 * MECHANISM
 * STRUCTURE


15. IS WORK BEING DONE IF I AM TRYING TO PICK UP A BOX BUT CAN NOT LIFT IT?

 * Bookmark
 * Report
 * Discuss

 * yes
 * no


16. CYLINDRICAL PAIR HAS A---- DEGREE OF FREEDOM.

 * Bookmark
 * Report
 * Discuss

 * one
 * two
 * three
 * four


17. WHICH IS AN EXAMPLE OF ROLLING PAIR?

 * Bookmark
 * Report
 * Discuss

 * crankshaft
 * mirror in car
 * ball bearings
 * connecting rod


18. WHICH IS AN EXAMPLE OF HIGHER PAIR?

 * Bookmark
 * Report
 * Discuss

 * cylindrical pair
 * sliding pair
 * car mirror
 * cam and follower


19. THE PAIR OF TWO ELEMENTS ARE NOT HELD TOGETHER IN MECHANICALLY IT IS CALLED
-----------.

 * Bookmark
 * Report
 * Discuss

 * lower pair
 * closed pair
 * open pair
 * higher pair


20. IT IS DEFINED AS AN ACTIVITY DONE WHEN A BODY OR OBJECT MOVES WITH THE
APPLICATION OF EXTERNAL FORCE IS ________.

 * Bookmark
 * Report
 * Discuss

 * Work
 * Energy
 * Mechanical Advantage
 * velocity ratio


21. WHAT IS THE NAME OF THIS PART?

 * Bookmark
 * Report
 * Discuss

 * Pulley
 * Wedge
 * Inclined Plane
 * Screw


22. WHAT IS THIS SIMPLE MACHINE?

 * Bookmark
 * Report
 * Discuss

 * Inclined Plane
 * Lever
 * Gear
 * Wheel and axle


23. WHICH METHOD CAN HELP ROZITA TO OPEN THE LID EASIER?

 * Bookmark
 * Report
 * Discuss

 * use a thinner spoon
 * reduce the distance between Rozita's hand and the circular part of the tin
 * exert a stronger pushing force
 * increase the distance between Rozita's hand and the circular part of the
   spoon


24. WHAT IS THE SIMPLE MACHINE THAT USED BY THE BOY TO TAKE WATER?

 * Bookmark
 * Report
 * Discuss

 * Lever
 * Incline plane
 * Pulley
 * Gear


25. GARDEN SCISSORS IS A TYPE OF SIMPLE MACHINE __________ TO TRIM TREES.

 * Bookmark
 * Report
 * Discuss

 * Wedge
 * Wheel and axle
 * Pulley
 * Lever


26. A WORKER IS FACING DIFFICULTY TO CARRY BOXES OUT OF THE LORRY. WHICH SIMPLE
MACHINE CAN HELP THE WORKER?

 * Bookmark
 * Report
 * Discuss

 * Lever
 * Wedge
 * Inclined plane
 * Gear


27. WHEELBARROW IS A SIMPLE MACHINE OR COMPLEX MACHINE?

 * Bookmark
 * Report
 * Discuss

 * Simple Machine
 * Complex Machine


28. WHAT ARE THE UNITS FOR WORK?

 * Bookmark
 * Report
 * Discuss

 * newtons
 * meters
 * force 
 * joules 


29. NESTING BIRDS OFTEN SPACE THEMSELVES EVENLY FROM OTHER NESTS. THIS PATTERN
IS CALLED

 * Bookmark
 * Report
 * Discuss

 * clumped dispersion.
 * uniform dispersion.
 * random dispersion
 * scatter dispersion


30. WHICH OF THE FOLLOWING WILL INCREASE THE SIZE OF A POPULATION?

 * Bookmark
 * Report
 * Discuss

 * emigration and births
 * immigration and deaths
 * immigration and births
 * emigration and deaths


31. WHICH OF THE FOLLOWING IS A DENSITY-DEPENDENT LIMITING FACTOR?

 * Bookmark
 * Report
 * Discuss

 * human activities 
 * unusual weather
 * competition
 * natural disaster


32. WHICH OF THE FOLLOWING STATEMENTS ABOUT PRIMARY SUCCESSION IS TRUE?

 * Bookmark
 * Report
 * Discuss

 * It begins with a climax community
 * Small mammals are the first to live there
 * It begins with bare rock
 * It begins with rock and soil


33. WHAT TYPE OF GROWTH IS SHOWN ON THIS GRAPH?

 * Bookmark
 * Report
 * Discuss

 * logistic
 * exponential
 * average
 * density-independent


34. WHICH OF THE FOLLOWING IS A DENSITY-INDEPENDENT LIMITING FACTOR?

 * Bookmark
 * Report
 * Discuss

 * natural disaster
 * predation
 * disease
 * parasitism


35. THE WAY IN WHICH INDIVIDUALS OF A POPULATION ARE SPREAD OUT IS CALLED

 * Bookmark
 * Report
 * Discuss

 * population density
 * survivorship
 * population dispersion
 * logistic curve


36. THE MOVEMENT OF A SINGLE CARIBOU INTO A HERD IS AN EXAMPLE OF

 * Bookmark
 * Report
 * Discuss

 * population
 * immigration
 * emigration
 * predation


37. WHAT PATTERN OF GROWTH WILL A POPULATION WITH LIMITED RESOURCES SHOW?

 * Bookmark
 * Report
 * Discuss

 * density-dependent
 * exponential 
 * logistic
 * logical 


38. DISEASES MAY SPREAD MORE RAPIDLY WHEN AN AREA IS CROWDED, SO DISEASE IS
CONSIDERED TO BE A

 * Bookmark
 * Report
 * Discuss

 * type I survivorship curve
 * population crasher
 * density-dependent limiting factor
 * population enhancer


39. WHAT TYPE OF POPULATION GROWTH IS SHOWN IN THE GRAPH?

 * Bookmark
 * Report
 * Discuss

 * logistic growth
 * logical growth
 * exponential growth
 * density-dependent growth


40. WHAT IS A SIMPLE MACHINE?

 * Bookmark
 * Report
 * Discuss

 * a device that has only one working motor
 * a device that makes work easier
 * a device that makes more work for a job
 * device that is made up of two or more machines


41. WHAT IS THE EQUATION FOR CALCULATING WORK?

 * Bookmark
 * Report
 * Discuss

 * force times distance 
 * force divided by distance 
 * force plus distance 
 * mass times acceleration 


42. TO MEASURE POPULATION DENSITY, YOU MUST DIVIDE THE NUMBER OF INDIVIDUALS
LIVING IN A DEFINED SPACE BY THE

 * Bookmark
 * Report
 * Discuss

 * area of the space
 * birth and death rates
 * carrying capacity
 * height of the space


43. A FLAT SLOPING SURFACE THAT CONNECTS LOWER AND HIGHER ELEVATIONS. IT MAKES
RAISING OBJECTS EASIER.

 * Bookmark
 * Report
 * Discuss

 * wedge
 * screw
 * lever
 * inclined plane 


44. AN INCLINED PLANE WRAPPED AROUND A ROD FORMS THIS SIMPLE MACHINE

 * Bookmark
 * Report
 * Discuss

 * lever
 * pulley
 * screw
 * wedge 


45. A SIMPLE MACHINE THAT CONSISTS A RIGID BAR THAT PIVOT ABOUT A FIXED POINT

 * Bookmark
 * Report
 * Discuss

 * lever
 * pulley
 * wheel and axle
 * fulcrum 


46. THE "FIXED POINT" ON WHICH A LEVER RESTS AND, OR PIVOTS IS KNOWN AS WHICH OF
THE FOLLOWING?

 * Bookmark
 * Report
 * Discuss

 * screw
 * wheel and axle
 * see saw 
 * fulcrum 


47. A SEESAW IS AN EXAMPLE OF WHICH MACHINE?

 * Bookmark
 * Report
 * Discuss

 * wedge
 * lever 
 * inclined plane 
 * pulley 


48. A DOOR KNOB IS AN EXAMPLE OF WHICH MACHINE?

 * Bookmark
 * Report
 * Discuss

 * wheel and axle
 * swrew
 * pulley 
 * inclined plane 


49. A SEQUENCE OF BIOTIC CHANGES THAT REGENERATE OR CREATE AN ECOLOGICAL
COMMUNITY IS KNOWN AS

 * Bookmark
 * Report
 * Discuss

 * factors
 * erosion
 * succession
 * progression


50. STAIRS ARE A

 * Bookmark
 * Report
 * Discuss

 * wedge
 * pulley
 * inclined plane
 * wheel and axle


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