The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as

Principle of transmissibility of forces

Principle of independence of forces

Principle of resolution of forces

Principle of transmissibility of forces

According to principle of transmissibility of forces, the effect of a force upon a body is

minimum when it acts at the C.G. of the body

maximum when it acts at the center of gravity of a body

different at different points in its line of action

the same at every point in its line of action

minimum when it acts at the C.G. of the body

The efficiency of a lifting machine is the ratio of

Work done by the machine to the work done on the machine

Mechanical advantage to the velocity ratio

The mechanical advantage of a lifting machine is the ratio of

Distance moved by effort to the distance moved by load

Load lifted to the effort applied

Which one of the following statements is not correct?

The tangent of the angle of friction is equal to coefficient of friction

The angle of repose is equal to angle of friction

The tangent of the angle of repose is equal to coefficient of friction

The sine of the angle of repose is equal to coefficient to friction

The time of flight of a projectile on downward inclined plane depends upon

Angle of inclination of the plane

Center of gravity of a thin hollow cone lies on the axis at a height of

One-half of the total height above base

One-fourth of the total height above base

One-third of the total height above base

One-half of the total height above base

Three-eighth of the total height above the base

For any system of coplanar forces, the condition of equilibrium is that the

Algebraic sum of the horizontal components of all the forces should be zero

Algebraic sum of the vertical components of all the forces should be zero

Algebraic sum of moments of all the forces about any point should be zero

If a number of forces are acting at a point, their resultant is given by

(∑V)2 +(∑H)2 +2(∑V)(∑H)

√[(∑V)2 +(∑H)2 +2(∑V)(∑H)]

Truss cannot be acted upon three force members. Because the truss in a single plane.

The first part of the statement is false and other part is false too

The first part of the statement is false and other part is true

The first part of the statement is false and other part is false too

The first part of the statement is true and other part is false

The first part of the statement is true and other part is true too

A truss is facing a two force member and both of them are in the opposite directions. And the truss is in equilibrium. And both of them are coming towards each other. The forces are called __________

Parallel and collinear forces with same direction of heading

A truss is facing a two force member and both of them are in the opposite directions. And the truss is in equilibrium. And both of them are getting away from each other.The forces are called?

Parallel and collinear forces with same direction of heading

There are no rules for the designing of the truss. But there are rules designing the bridges.

The first part of the statement is true and other part is false

The first part of the statement is false and other part is true

The first part of the statement is false and other part is false too

The first part of the statement is true and other part is false

The first part of the statement is true and other part is true too

Trusses lie in a single plane. And the calculations used to solve the forces are from vector math.

The first part of the statement is true and other part is true too

The first part of the statement is false and other part is true

The first part of the statement is false and other part is false too

The first part of the statement is true and other part is false

The first part of the statement is true and other part is true too

439 + Mcqs in Mechanics in SRMJEEE Page 9 McqOptions

401.	The algebraic sum of the resolved parts of a number of forces in a given direction is equal to the resolved part of their resultant in the same direction. This is known as
A.	Principle of independence of forces
B.	Principle of resolution of forces
C.	Principle of transmissibility of forces
D.	None of these
Answer» C. Principle of transmissibility of forces

Discussion

402.	If two bodies having masses m1 and m2 (m1>m2) have equal kinetic energies, the momentum of body having mass m1 is _________ the momentum of body having mass m2.
A.	Equal to
B.	Less than
C.	Greater than
D.	None of these
Answer» D. None of these

Discussion

403.	The C.G. of a right circular solid cone of height h lies at the following distance from the base
A.	h/2
B.	J/3
C.	h/6
D.	h/4
Answer» E.

Discussion

404.	Which of the following are vector quantities?
A.	Linear displacement
B.	Linear velocity
C.	Linear acceleration
D.	All of these
Answer» E.

Discussion

405.	Which of the following is the example of lever of first order?
A.	Arm of man
B.	Pair of scissors
C.	Pair of clinical tongs
D.	All of the above
Answer» E.

Discussion

406.	According to principle of transmissibility of forces, the effect of a force upon a body is
A.	maximum when it acts at the center of gravity of a body
B.	different at different points in its line of action
C.	the same at every point in its line of action
D.	minimum when it acts at the C.G. of the body
Answer» D. minimum when it acts at the C.G. of the body

Discussion

407.	A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve
A.	Circular arc
B.	Parabola
C.	Hyperbola
D.	Elliptical
Answer» C. Hyperbola

Discussion

408.	The maximum frictional force which comes into play when a body just begins to slide over another surface is called
A.	Limiting friction
B.	Sliding friction
C.	Rolling friction
D.	Kinematic friction
Answer» B. Sliding friction

Discussion

409.	If a given force (or a given system of forces) acting on a body __________ the position of the body, but keeps it in equilibrium, then its effect is to produce internal stress in the body.
A.	Change
B.	Does not change
C.	Changes periodically
D.	None of these
Answer» C. Changes periodically

Discussion

410.	When the spring of a watch is wound, it will possess
A.	Strain energy
B.	Kinetic energy
C.	Heat energy
D.	Electrical energy
Answer» B. Kinetic energy

Discussion

411.	The efficiency of a lifting machine is the ratio of
A.	Output to the input
B.	Work done by the machine to the work done on the machine
C.	Mechanical advantage to the velocity ratio
D.	All of the above
Answer» E.

Discussion

412.	The mechanical advantage of a lifting machine is the ratio of
A.	Distance moved by effort to the distance moved by load
B.	Load lifted to the effort applied
C.	Output to the input
D.	All of the above
Answer» C. Output to the input

Discussion

413.	The angle between two forces when the resultant is maximum and minimum respectively are
A.	0° and 180°
B.	180° and 0°
C.	90° and 180°
D.	90° and 0°
Answer» B. 180° and 0°

Discussion

414.	The skidding away of the vehicle on a level circular path can be avoided if the force of friction between the wheels and the ground is __________ the centrifugal force.
A.	Less than
B.	Greater than
C.	Equal to
D.	None of these
Answer» C. Equal to

Discussion

415.	The velocity ratio in case of an inclined plane inclined at angle 'θ' to the horizontal and weight being pulled up the inclined plane by vertical effort is
A.	sinθ
B.	cosθ
C.	tanθ
D.	cosecθ
Answer» B. cosθ

Discussion

416.	The forces, whose lines of action are parallel to each other and act in the same directions, are known as
A.	Coplanar concurrent forces
B.	Coplanar non-concurrent forces
C.	Like parallel forces
D.	Unlike parallel forces
Answer» D. Unlike parallel forces

Discussion

417.	Which one of the following statements is not correct?
A.	The tangent of the angle of friction is equal to coefficient of friction
B.	The angle of repose is equal to angle of friction
C.	The tangent of the angle of repose is equal to coefficient of friction
D.	The sine of the angle of repose is equal to coefficient to friction
Answer» E.

Discussion

418.	Which of the following is not the unit of energy?
A.	kg m
B.	kcal
C.	Watt
D.	Watt hours
Answer» D. Watt hours

Discussion

419.	The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.
A.	Equal to
B.	Less than
C.	Greater than
D.	None of these
Answer» B. Less than

Discussion

420.	In a single threaded worm and worm wheel, the number of teeth on the worm is 50. The diameter of the effort wheel is 100 mm and that of load drum is 50 mm. The velocity ratio is
A.	50
B.	100
C.	200
D.	400
Answer» C. 200

Discussion

421.	The time of flight of a projectile on downward inclined plane depends upon
A.	Angle of projection
B.	Angle of inclination of the plane
C.	Both (A) and (B)
D.	None of these
Answer» D. None of these

Discussion

422.	Center of gravity of a thin hollow cone lies on the axis at a height of
A.	One-fourth of the total height above base
B.	One-third of the total height above base
C.	One-half of the total height above base
D.	Three-eighth of the total height above the base
Answer» C. One-half of the total height above base

Discussion

423.	For any system of coplanar forces, the condition of equilibrium is that the
A.	Algebraic sum of the horizontal components of all the forces should be zero
B.	Algebraic sum of the vertical components of all the forces should be zero
C.	Algebraic sum of moments of all the forces about any point should be zero
D.	All of the above
Answer» E.

Discussion

424.	The coefficient of friction depends upon
A.	Nature of surfaces
B.	Area of contact
C.	Shape of the surfaces
D.	All of the above
Answer» B. Area of contact

Discussion

425.	The energy possessed by a body, for doing work by virtue of its position, is called
A.	Potential energy
B.	Kinetic energy
C.	Electrical energy
D.	Chemical energy
Answer» B. Kinetic energy

Discussion

426.	The friction experienced by a body, when at rest, is known as
A.	Static friction
B.	Dynamic friction
C.	Limiting friction
D.	Coefficient of friction
Answer» B. Dynamic friction

Discussion

427.	According to parallel axis theorem, the moment of inertia of a section about an axis parallel to the axis through center of gravity (i.e. IP) is given by(where, A = Area of the section, IG = Moment of inertia of the section about an axis passing through its C.G., and h = Distance between C.G. and the parallel axis.)
A.	IP = IG + Ah2
B.	IP = IG - Ah2
C.	IP = IG / Ah2
D.	IP = Ah2 / IG
Answer» B. IP = IG - Ah2

Discussion

428.	Moment of inertia of a circular section about an axis perpendicular to the section is
A.	πd3/16
B.	πd3/32
C.	πd4/32
D.	πd4/64
Answer» D. πd4/64

Discussion

429.	The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad/s2, is
A.	a = α/ r
B.	a = α.r
C.	a = r / α
D.	None of these
Answer» C. a = r / α

Discussion

430.	If a number of forces are acting at a point, their resultant is given by
A.	(∑V)2 + (∑H)2
B.	√[(∑V)2 + (∑H)2]
C.	(∑V)2 +(∑H)2 +2(∑V)(∑H)
D.	√[(∑V)2 +(∑H)2 +2(∑V)(∑H)]
Answer» C. (∑V)2 +(∑H)2 +2(∑V)(∑H)

Discussion

431.	A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.
A.	Equal to
B.	Less than
C.	Greater than
D.	None of these
Answer» B. Less than

Discussion

432.	The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by
A.	2P sinθ/2
B.	2P cosθ/2
C.	2P tanθ/2
D.	2P cotθ/2
Answer» C. 2P tanθ/2

Discussion

433.	Truss cannot be acted upon three force members. Because the truss in a single plane.
A.	The first part of the statement is false and other part is true
B.	The first part of the statement is false and other part is false too
C.	The first part of the statement is true and other part is false
D.	The first part of the statement is true and other part is true too
Answer» B. The first part of the statement is false and other part is false too

Discussion

434.	A truss is facing a two force member and both of them are in the opposite directions. And the truss is in equilibrium. And both of them are coming towards each other. The forces are called __________
A.	Compressive forces
B.	Tensile Forces
C.	Parallel and collinear forces with same direction of heading
D.	The rotational forces
Answer» B. Tensile Forces

Discussion

435.	A truss is facing a two force member and both of them are in the opposite directions. And the truss is in equilibrium. And both of them are getting away from each other.The forces are called?
A.	Compressive forces
B.	Tensile Forces
C.	Parallel and collinear forces with same direction of heading
D.	The rotational forces
Answer» C. Parallel and collinear forces with same direction of heading

Discussion

436.	There are no rules for the designing of the truss. But there are rules designing the bridges.
A.	The first part of the statement is false and other part is true
B.	The first part of the statement is false and other part is false too
C.	The first part of the statement is true and other part is false
D.	The first part of the statement is true and other part is true too
Answer» C. The first part of the statement is true and other part is false

Discussion

437.	The transmission of the load on a certain type of a structure follow as from stringers to floor beams and then joints. Determine the structure.
A.	Truss
B.	Beam
C.	Pillar
D.	Bridge
Answer» E.

Discussion

438.	Trusses lie in a single plane. And the calculations used to solve the forces are from vector math.
A.	The first part of the statement is false and other part is true
B.	The first part of the statement is false and other part is false too
C.	The first part of the statement is true and other part is false
D.	The first part of the statement is true and other part is true too
Answer» D. The first part of the statement is true and other part is true too

Discussion

439.	The joint in the trusses are generally formed by welding the materials at the ends of the trusses on a common plate. Which gives strength to the design. What is that plate called?
A.	Gusset Plate
B.	Ignified plate
C.	Non-metallic plate
D.	Gymnite plate
Answer» B. Ignified plate

Discussion

Explore topic-wise MCQs in SRMJEEE .

The&nbsp;C.G.&nbsp;of&nbsp;a&nbsp;right&nbsp;circular&nbsp;solid&nbsp;cone&nbsp;of&nbsp;height&nbsp;h&nbsp;lies&nbsp;at&nbsp;the&nbsp;following&nbsp;distance&nbsp;from&nbsp;the&nbsp;base

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;are&nbsp;vector&nbsp;quantities?

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;is&nbsp;the&nbsp;example&nbsp;of&nbsp;lever&nbsp;of&nbsp;first&nbsp;order?

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A&nbsp;heavy&nbsp;string&nbsp;attached&nbsp;at&nbsp;two&nbsp;ends&nbsp;at&nbsp;same&nbsp;horizontal&nbsp;level&nbsp;and&nbsp;when&nbsp;central&nbsp;dip&nbsp;is&nbsp;very&nbsp;small&nbsp;approaches&nbsp;the&nbsp;following&nbsp;curve

The&nbsp;maximum&nbsp;frictional&nbsp;force&nbsp;which&nbsp;comes&nbsp;into&nbsp;play&nbsp;when&nbsp;a&nbsp;body&nbsp;just&nbsp;begins&nbsp;to&nbsp;slide&nbsp;over&nbsp;another&nbsp;surface&nbsp;is&nbsp;called

When&nbsp;the&nbsp;spring&nbsp;of&nbsp;a&nbsp;watch&nbsp;is&nbsp;wound,&nbsp;it&nbsp;will&nbsp;possess

The&nbsp;efficiency&nbsp;of&nbsp;a&nbsp;lifting&nbsp;machine&nbsp;is&nbsp;the&nbsp;ratio&nbsp;of

The&nbsp;mechanical&nbsp;advantage&nbsp;of&nbsp;a&nbsp;lifting&nbsp;machine&nbsp;is&nbsp;the&nbsp;ratio&nbsp;of

The&nbsp;angle&nbsp;between&nbsp;two&nbsp;forces&nbsp;when&nbsp;the&nbsp;resultant&nbsp;is&nbsp;maximum&nbsp;and&nbsp;minimum&nbsp;respectively&nbsp;are

The&nbsp;forces,&nbsp;whose&nbsp;lines&nbsp;of&nbsp;action&nbsp;are&nbsp;parallel&nbsp;to&nbsp;each&nbsp;other&nbsp;and&nbsp;act&nbsp;in&nbsp;the&nbsp;same&nbsp;directions,&nbsp;are&nbsp;known&nbsp;as

Which&nbsp;one&nbsp;of&nbsp;the&nbsp;following&nbsp;statements&nbsp;is&nbsp;not&nbsp;correct?

Which&nbsp;of&nbsp;the&nbsp;following&nbsp;is&nbsp;not&nbsp;the&nbsp;unit&nbsp;of&nbsp;energy?

The&nbsp;potential&nbsp;energy&nbsp;of&nbsp;a&nbsp;vertically&nbsp;raised&nbsp;body&nbsp;is&nbsp;__________&nbsp;the&nbsp;kinetic&nbsp;energy&nbsp;of&nbsp;a&nbsp;vertically&nbsp;falling&nbsp;body.

The&nbsp;time&nbsp;of&nbsp;flight&nbsp;of&nbsp;a&nbsp;projectile&nbsp;on&nbsp;downward&nbsp;inclined&nbsp;plane&nbsp;depends&nbsp;upon

Center&nbsp;of&nbsp;gravity&nbsp;of&nbsp;a&nbsp;thin&nbsp;hollow&nbsp;cone&nbsp;lies&nbsp;on&nbsp;the&nbsp;axis&nbsp;at&nbsp;a&nbsp;height&nbsp;of

For&nbsp;any&nbsp;system&nbsp;of&nbsp;coplanar&nbsp;forces,&nbsp;the&nbsp;condition&nbsp;of&nbsp;equilibrium&nbsp;is&nbsp;that&nbsp;the

The&nbsp;coefficient&nbsp;of&nbsp;friction&nbsp;depends&nbsp;upon

The&nbsp;energy&nbsp;possessed&nbsp;by&nbsp;a&nbsp;body,&nbsp;for&nbsp;doing&nbsp;work&nbsp;by&nbsp;virtue&nbsp;of&nbsp;its&nbsp;position,&nbsp;is&nbsp;called

The&nbsp;friction&nbsp;experienced&nbsp;by&nbsp;a&nbsp;body,&nbsp;when&nbsp;at&nbsp;rest,&nbsp;is&nbsp;known&nbsp;as

Moment&nbsp;of&nbsp;inertia&nbsp;of&nbsp;a&nbsp;circular&nbsp;section&nbsp;about&nbsp;an&nbsp;axis&nbsp;perpendicular&nbsp;to&nbsp;the&nbsp;section&nbsp;is

The&nbsp;linear&nbsp;acceleration&nbsp;(a)&nbsp;of&nbsp;a&nbsp;body&nbsp;rotating&nbsp;along&nbsp;a&nbsp;circular&nbsp;path&nbsp;of&nbsp;radius&nbsp;(r)&nbsp;with&nbsp;an&nbsp;angular&nbsp;acceleration&nbsp;of&nbsp;&alpha;&nbsp;rad/s2,&nbsp;is

If&nbsp;a&nbsp;number&nbsp;of&nbsp;forces&nbsp;are&nbsp;acting&nbsp;at&nbsp;a&nbsp;point,&nbsp;their&nbsp;resultant&nbsp;is&nbsp;given&nbsp;by

A&nbsp;framed&nbsp;structure&nbsp;is&nbsp;perfect,&nbsp;if&nbsp;the&nbsp;number&nbsp;of&nbsp;members&nbsp;are&nbsp;__________&nbsp;(2j&nbsp;-&nbsp;3),&nbsp;where&nbsp;j&nbsp;is&nbsp;the&nbsp;number&nbsp;of&nbsp;joints.

The&nbsp;resultant&nbsp;of&nbsp;two&nbsp;equal&nbsp;forces&nbsp;&lsquo;P&rsquo;&nbsp;making&nbsp;an&nbsp;angle&nbsp;&lsquo;&theta;&rsquo;,&nbsp;is&nbsp;given&nbsp;by

Truss&nbsp;cannot&nbsp;be&nbsp;acted&nbsp;upon&nbsp;three&nbsp;force&nbsp;members.&nbsp;Because&nbsp;the&nbsp;truss&nbsp;in&nbsp;a&nbsp;single&nbsp;plane.

There&nbsp;are&nbsp;no&nbsp;rules&nbsp;for&nbsp;the&nbsp;designing&nbsp;of&nbsp;the&nbsp;truss.&nbsp;But&nbsp;there&nbsp;are&nbsp;rules&nbsp;designing&nbsp;the&nbsp;bridges.

The&nbsp;transmission&nbsp;of&nbsp;the&nbsp;load&nbsp;on&nbsp;a&nbsp;certain&nbsp;type&nbsp;of&nbsp;a&nbsp;structure&nbsp;follow&nbsp;as&nbsp;from&nbsp;stringers&nbsp;to&nbsp;floor&nbsp;beams&nbsp;and&nbsp;then&nbsp;joints.&nbsp;Determine&nbsp;the&nbsp;structure.

Trusses&nbsp;lie&nbsp;in&nbsp;a&nbsp;single&nbsp;plane.&nbsp;And&nbsp;the&nbsp;calculations&nbsp;used&nbsp;to&nbsp;solve&nbsp;the&nbsp;forces&nbsp;are&nbsp;from&nbsp;vector&nbsp;math.

The C.G. of a right circular solid cone of height h lies at the following distance from the base

Which of the following are vector quantities?

Which of the following is the example of lever of first order?

According to principle of transmissibility of forces, the effect of a force upon a body is

A heavy string attached at two ends at same horizontal level and when central dip is very small approaches the following curve

The maximum frictional force which comes into play when a body just begins to slide over another surface is called

When the spring of a watch is wound, it will possess

The efficiency of a lifting machine is the ratio of

The mechanical advantage of a lifting machine is the ratio of

The angle between two forces when the resultant is maximum and minimum respectively are

The forces, whose lines of action are parallel to each other and act in the same directions, are known as

Which one of the following statements is not correct?

Which of the following is not the unit of energy?

The potential energy of a vertically raised body is __________ the kinetic energy of a vertically falling body.

The time of flight of a projectile on downward inclined plane depends upon

Center of gravity of a thin hollow cone lies on the axis at a height of

For any system of coplanar forces, the condition of equilibrium is that the

The coefficient of friction depends upon

The energy possessed by a body, for doing work by virtue of its position, is called

The friction experienced by a body, when at rest, is known as

Moment of inertia of a circular section about an axis perpendicular to the section is

The linear acceleration (a) of a body rotating along a circular path of radius (r) with an angular acceleration of α rad/s2, is

If a number of forces are acting at a point, their resultant is given by

A framed structure is perfect, if the number of members are __________ (2j - 3), where j is the number of joints.

The resultant of two equal forces ‘P’ making an angle ‘θ’, is given by

Truss cannot be acted upon three force members. Because the truss in a single plane.

There are no rules for the designing of the truss. But there are rules designing the bridges.

The transmission of the load on a certain type of a structure follow as from stringers to floor beams and then joints. Determine the structure.

Trusses lie in a single plane. And the calculations used to solve the forces are from vector math.