- Basic Of Mechanical Engineering Pdf
- Basic Mechanical Engineering Pdf Download
- Basic Mechanical Engineering Book Pdf Free Download
Handbook of Mechanical Engineering calculation Second Edition by Tyler G. This text covers a gamut of mechanical engineering topics that are required to be learnt as a pre-requisite for any undergraduate engineering course. It lays emphasis on explaining the logic behind complex problems to enhance the analytical skills of students. Basics of mechanical engineering with introduction to all courses, subjects, topics and basic concepts - It is advisable for all mechanical engineers to keep on revising these concepts. It will help them improve work efficiency and performance in interviews for better jobs.
1) A flat surface can be produced by a lathe machine, if the cutting tool moves _____a. parallel to the axis of rotation of workpiece
b. perpendicular to the axis of rotation of workpiece
c. at an angle of 450
d. none of the above
ANSWER: perpendicular to the axis of rotation of workpiece |
2) What is the function of cone pulley drive in lathe machines?
a. Drive the lead screw
b. Change the spindle speed
c. Drive the tail-stock
d. All of the above
3) Which of the following is a mechanism for mechanized movements of the carriage along longitudinal axis?
a. Cross-slide
b. Compound rest
c. Apron
d. Saddle
4) The function of taper turning process is to ____
a. reduce the diameter of a workpiece along its length
b. reduce the diameter by removing material about an axis offset from the axis of workpiece
c. remove the material from end surface of a workpiece
d. all of the above
ANSWER: reduce the diameter of a workpiece along its length |
5) The process of bevelling sharp ends of a workpiece is called as ________
a. knurling
b. grooving
c. facing
d. chamfering
6) In an isolated system, ________ can be transferred between the system and its surrounding.
a. only energy
b. only mass
c. both energy and mass
d. neither energy nor mass
ANSWER: neither energy nor mass |
7) Which of the following is an extensive property?
a. Volume
b. Pressure
c. Viscosity
d. All of the above
8) How is absolute pressure measured?
a. Gauge pressure + Atmospheric pressure
b. Gauge pressure – Atmospheric pressure
c. Gauge pressure / Atmospheric pressure
d. None of the above
ANSWER: Gauge pressure + Atmospheric pressure |
9) The extensive properties of a system, _______
a. are independent of the mass of the system
b. depend upon temperature of the system
c. depend upon the mass of the system
d. none of the above
10) An isobaric process, has constant _____
a. density
b. pressure
c. temperature
d. volume
ANSWER: pressure |
11) Which of the following energy conversion devices convert heat into work?
a. Electrical generators
b. I. C engines
c. Condensers
d. All of the above
12) Lancashire boilers are ______
a. externally fired boilers
b. internally fired boilers
c. both a. and b.
d. none of the above
ANSWER: internally fired boilers |
13) Smoke tube boilers have large water to steam ratio, hence _____
a. have high evaporation rates
b. are slow in operations
c. temperature stresses inducing failure of feed water arrangement are maximum
d. all of the above
14) Which of the following statements are false for reaction turbines?
1. Flow of water can be regulated without any losses
2. It works on the principle of impulse and reaction
3. They are suitable for low heads
4. Water flows at constant atmospheric pressure over the runner
a. 1, 2 and 3
b. 2 and 4
c. 1 and 4
d. 1, 2, 3 and 4
ANSWER: 1 and 4 |
15) In four stroke cycle engine, cycle is completed in ______
a. two strokes of the piston
b. two revolutions of the crankshaft
c. three strokes of the piston
d. four revolutions of the crankshaft
16) Which type of bearings are known as anti friction bearings?
a. Sliding contact bearings
b. Rolling contact bearings
c. Both a. and b.
d. None of the above
ANSWER: Rolling contact bearings |
17) In roller bearings which type of rolling elements are used?
a. Cylindrical rollers
b. Taper rollers
c. Spherical rollers
d. All of the above
18) Why is the load carrying capacity low in ball bearings?
1. Due to line contact between inner race and the ball
2. Due to greater axial dimensions
3. Due to less radial dimensions
4. Due to point contact between inner race and the ball
a. 1 and 3
b. only 1
c. only 4
d. 2 and 4
ANSWER: only 4 |
19) Cylindrical roller bearings have greater _____
a. axial load carrying capacity
b. thrust load carrying capacity
c. radial load carrying capacity
d. all of the above
20) Which of the following statements is/are true?
a. Jaw clutch is a positive clutch
b. The power transmitting
capacity of a friction clutch is inversely proportional to the
coefficient of friction between contacting surfaces
c. Driving and driven plates in friction clutches are held together due to radial force applied by the helical springs
d. All of the above
ANSWER: Jaw clutch is a positive clutch |
21) Determine torque transmitted on the pinion shaft if torque transmitted on gear shaft is 20 Nm.
Consider Gear ratio = 4
a. 8 Nm
b. 5 Nm
c. 80 Nm
d. 16 Nm
22) Which of the following statements is/are true for gear drives?
a. They can be used for long centre distances
b. They are used to transmit power between non-intersecting and parallel shafts
c. They cannot be used for high reduction ratios
d. All of the above
ANSWER: They are used to transmit power between non-intersecting and parallel shafts |
23) In which power transmitting drive polygon effect is observed?
a. Belt drive
b. Chain drive
c. Both a. and b.
d. None of the above
24) What is meant by gear ratio?
a. The ratio of pinion speed and gear speed
b. The ratio of number of teeth on pinion and number of teeth on gear
c. Both a. and b.
d. None of the above
ANSWER: The ratio of pinion speed and gear speed |
25) Which gears are used to connect two intersecting shaft axes?
a. Crossed helical gear
b. Worm and worm wheel
c. Bevel gears
d. All of the above
26) In stress-strain diagram, up to proportional limit ______
a. stress is inversely proportional to strain
b. force is directly proportional to displacement
c. stress is directly proportional to strain
d. strain is directly proportional to stress
ANSWER: stress is directly proportional to strain |
27) Deformation per unit length is called as ________
a. strain
b. stress
c. modulus of elasticity
d. none of the above
28) Which of the following materials do not have a well defined yield point?
a. Heat treated steel
b. Concrete
c. Carbon fiber
d. All of the above
ANSWER: All of the above |
29) Factor of safety is the ratio of _________
a. working stress and ultimate strength
b. yield strength and endurance strength
c. ultimate strength and yield strength
d. yield strength and working stress
30) The elongation of a bar is 0.5 mm, when a tensile stress of 200 N/mm2 acts on it. Determine original length of a bar if modulus of elasticity is 150 x 103.
a. 375.93 mm
b. 300 mm
c. 360 mm
d. None of the above
ANSWER: 375.93 mm |
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Mechanical Engineering Pocket Formulas and Physical Constant Handbook Free download (pdf )
Basic Of Mechanical Engineering Pdf
Basic Mechanical Engineering Pdf Download
Pages: 43
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2) Mechanical Data and Formulae book For Mechanical Engineering Students
[ This book include formulas of mathematics ,Solid Mechanics Concept-Clutches,moment Of Inertia, Stress analysis, Beam Theory, Slope and Deflection, Elastic Torsion, Thin Pressure vessel Design, Stress Transformation, Fluid Mechanics, thermodynamics, Heat transfer, Thermodynamics and heat theory]
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