Mathematical equation for Involute is

x = (a+b)cosÎ¸ â€“ a cos(a+bâ„a Î¸)

487 + Mcqs in Engineering Graphics in Civil Engineering Page 9 McqOptions

401.	In the Oblique projection an object is represented by how many views?
A.	one view
B.	two views
C.	three views
D.	four views
Answer» B. two views

Discussion

402.	The straight lines which are drawn from various points on the contour of an object to meet a plane are called as
A.	connecting lines
B.	projectors
C.	perpendicular lines
D.	hidden lines.
Answer» C. perpendicular lines

Discussion

403.	When the projectors are parallel to each other and also perpendicular to the plane, the projection is called
A.	perspective projection
B.	oblique projection
C.	isometric projection
D.	orthographic projection
Answer» E.

Discussion

404.	Rectangular hyperbola is one of the hyperbola but the asymptotes are perpendicular in case of rectangular hyperbola.
A.	true
B.	false
Answer» B. false

Discussion

405.	The curve which has eccentricity zero is
A.	parabola
B.	ellipse
C.	hyperbola
D.	circle
Answer» E.

Discussion

406.	The cross-section gives a Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â when the cutting plane is parallel to axis of cone.
A.	parabola
B.	hyperbola
C.	circle
D.	ellipse
Answer» C. circle

Discussion

407.	If the distance from the directrix is greater than the distance from the focus then what is the name of the conic section?
A.	hyperbola
B.	parabola
C.	ellipse
D.	circle
Answer» D. circle

Discussion

408.	The curve formed when eccentricity is equal to one is
A.	parabola
B.	circle
C.	semi-circle
D.	hyperbola
Answer» B. circle

Discussion

409.	The cross-section is a Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â when a plane is inclined to the axis and cuts all the generators of a regular cone.
A.	rectangular hyperbola
B.	hyperbola
C.	circle
D.	ellipse
Answer» E.

Discussion

410.	If the distance from a fixed point is greater than the distance from a fixed straight line then what is the value of eccentricity?
A.	unity
B.	infinity
C.	zero
D.	greater than one
Answer» E.

Discussion

411.	If the distance from a fixed straight line is equal to the distance from a fixed point then what is the value of eccentricity?
A.	unity
B.	greater than one
C.	infinity
D.	zero
Answer» B. greater than one

Discussion

412.	If the distance from a fixed straight line is 5mm and the distance from a fixed point is 14mm then what is the name of the conic section?
A.	hyperbola
B.	parabola
C.	ellipse
D.	circle
Answer» B. parabola

Discussion

413.	If the distance from the directrix is 5 units and the distance from the focus is 3 units then what is the value of eccentricity?
A.	1.667
B.	0.833
C.	0.60
D.	0.667
Answer» D. 0.667

Discussion

414.	If the distance from the directrix is greater than the distance from the focus then what is the value of eccentricity?
A.	unity
B.	less than one
C.	greater than one
D.	zero
Answer» C. greater than one

Discussion

415.	If the distance from a fixed straight line is equal to the distance from a fixed point then what is the name of the conic section?
A.	ellipse
B.	parabola
C.	hyperbola
D.	circle
Answer» C. hyperbola

Discussion

416.	If the distance from a fixed point is greater than the distance from a fixed straight line then what is the name of the conic section?
A.	parabola
B.	circle
C.	hyperbola
D.	ellipse
Answer» D. ellipse

Discussion

417.	If the distance from the directrix is 5 units and the distance from the focus is 3 units then what is the name of the conic section?
A.	ellipse
B.	parabola
C.	hyperbola
D.	circle
Answer» B. parabola

Discussion

418.	If the distance from the focus is 3 units and the distance from the directrix is 3 units, then what is the name of the conic section?
A.	ellipse
B.	hyperbola
C.	circle
D.	parabola
Answer» E.

Discussion

419.	If the distance from the focus is 2 mm and the distance from the directrix is 0.5 mm then what is the value of eccentricity?
A.	0.4
B.	4
C.	0.04
D.	40
Answer» C. 0.04

Discussion

420.	If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the name of the conic?
A.	circle
B.	parabola
C.	hyperbola
D.	ellipse
Answer» E.

Discussion

421.	If the distance from the focus is 2 mm and the distance from the directrix is 0.5 mm then what is the name of the conic section?
A.	circle
B.	ellipse
C.	parabola
D.	hyperbola
Answer» E.

Discussion

422.	If the distance from the focus is 3 units and the distance from the directrix is 3 units, then how much is the eccentricity?
A.	infinity
B.	zero
C.	unity
D.	less than one
Answer» D. less than one

Discussion

423.	If the value of eccentricity is 12, then what is the name of the conic?
A.	ellipse
B.	hyperbola
C.	parabola
D.	circle
Answer» C. parabola

Discussion

424.	If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the eccentricity?
A.	0.3333
B.	0.8333
C.	1.6667
D.	0.0333
Answer» B. 0.8333

Discussion

425.	Which of the following has an eccentricity less than one?
A.	circle
B.	parabola
C.	hyperbola
D.	ellipse
Answer» E.

Discussion

426.	Which of the following conics has an eccentricity of unity?
A.	circle
B.	parabola
C.	hyperbola
D.	ellipse
Answer» C. hyperbola

Discussion

427.	The ratio of the distance from the focus to the distance from the directrix is called as eccentricity.
A.	true
B.	false
Answer» B. false

Discussion

428.	The locus of point moving in a plane such that the distance between a fixed point and a fixed straight line is constant is called as
A.	conic
B.	rectangle
C.	square
D.	polygon
Answer» B. rectangle

Discussion

429.	10 BASICS OF CONIC SECTIONS - 1
A.	ellipse
B.	hyperbola
C.	circle
D.	parabola
Answer» E.

Discussion

430.	While cutting, if the plane is at an angle and it cuts all the generators, then the conic formed is called as
A.	circle
B.	ellipse
C.	parabola
D.	hyperbola
Answer» C. parabola

Discussion

431.	In conics, the Â Â Â Â Â Â Â Â Â Â Â is revolving to form two anti-parallel cones joined at the apex.
A.	ellipse
B.	circle
C.	generator
D.	parabola
Answer» D. parabola

Discussion

432.	Which of the following is not a conic section?
A.	apex
B.	hyperbola
C.	ellipse
D.	parabola
Answer» B. hyperbola

Discussion

433.	When the plane cuts the cone at angle parallel to the axis of the cone, then Â Â Â Â Â Â Â Â Â Â Â is formed.
A.	hyperbola
B.	parabola
C.	circle
D.	ellipse
Answer» B. parabola

Discussion

434.	The sections cut by a plane on a right circular cone are called as
A.	parabolic sections
B.	conic sections
C.	elliptical sections
D.	hyperbolic sections
Answer» C. elliptical sections

Discussion

435.	Which of the following is a conic section?
A.	circle
B.	rectangle
C.	triangle
D.	square
Answer» B. rectangle

Discussion

436.	Logarithmic spiral is also called Equiangular spiral.
A.	true
B.	false
Answer» B. false

Discussion

437.	The mosquito coil we generally see in house hold purposes and heating coils in electrical heater etc are generally which spiral.
A.	logarithmic spiral
B.	equiangular spiral
C.	fibonacci spiral
D.	archemedian spiral
Answer» E.

Discussion

438.	In logarithmic Spiral, the radius vectors are in arithmetical progression.
A.	true
B.	false
Answer» C.

Discussion

439.	Cyclone iv. Lituus spiral
A.	1, i; 2, ii; 3, iii; 4, iv
B.	1, ii; 2, iii; 3, i; 4, iv
C.	1, ii; 2, iv; 3, iii; 4, i
D.	1, iv; 2, i; 3, ii; 4, iii
Answer» C. 1, ii; 2, iv; 3, iii; 4, i

Discussion

440.	Fermatâ€™s spiral iv. r=ÆŸ1/2
A.	1, i; 2, ii; 3, iii; 4, iv
B.	1, ii; 2, iii; 3, i; 4, iv
C.	1, iv; 2, i; 3, ii; 4, iii
D.	1, ii; 2, iv; 3, iii; 4, i
Answer» D. 1, ii; 2, iv; 3, iii; 4, i

Discussion

441.	Match the following. Given points are about spirals.
A.	1, i; 2, ii; 3, iii; 4, iv
B.	1, ii; 2, iii; 3, i; 4, iv
C.	1, ii; 2, iv; 3, iii; 4, i
D.	1, iv; 2, i; 3, ii; 4, iii
Answer» E.

Discussion

442.	Which of the following does not represents an Archemedian spiral?
A.	coils in heater
B.	tendrils
C.	spring
D.	cyclone
Answer» E.

Discussion

443.	Which of the following represents an Archemedian spiral?
A.	tornado
B.	cyclone
C.	mosquito coil
D.	fibonacci series
Answer» D. fibonacci series

Discussion

444.	â€˜Hypoâ€™ as prefix to cycloids give that the generating circle is inside the directing circle.
A.	true
B.	false
Answer» B. false

Discussion

445.	For inferior trochoid or inferior epitrochoid the curve touches the directing line or directing circle.
A.	true
B.	false
Answer» C.

Discussion

446.	The generating point is outside the generating circle for
A.	cycloid
B.	superior trochoid
C.	inferior trochoid
D.	epicycloid
Answer» C. inferior trochoid

Discussion

447.	The generating circle will be inside the directing circle for
A.	cycloid
B.	inferior trochoid
C.	inferior epitrochoid
D.	hypocycloid
Answer» E.

Discussion

448.	When the circle rolls along another circle inside it, the curve is called a
A.	epicycloid
B.	cycloid
C.	trochoid
D.	hypocycloid
Answer» E.

Discussion

449.	Mathematical equation for Involute is
A.	x = a cos3 Î¸
B.	x = r cosÎ¸ + r Î¸ sinÎ¸
C.	x = (a+b)cosÎ¸ â€“ a cos(a+bâ„a Î¸)
D.	y = a(1-cosÎ¸)
Answer» C. x = (a+b)cosÎ¸ â€“ a cos(a+bâ„a Î¸)

Discussion

450.	Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is a curve generated by a point on the circumference of a circle, which rolls without slipping along another circle outside it.
A.	trochoid
B.	epicycloid
C.	hypotrochoid
D.	involute
Answer» C. hypotrochoid

Discussion

Explore topic-wise MCQs in Civil Engineering.

In the Oblique projection an object is represented by how many views?

The straight lines which are drawn from various points on the contour of an object to meet a plane are called as

When the projectors are parallel to each other and also perpendicular to the plane, the projection is called

Rectangular hyperbola is one of the hyperbola but the asymptotes are perpendicular in case of rectangular hyperbola.

The curve which has eccentricity zero is

The cross-section gives a Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â when the cutting plane is parallel to axis of cone.

If the distance from the directrix is greater than the distance from the focus then what is the name of the conic section?

The curve formed when eccentricity is equal to one is

The cross-section is a Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â when a plane is inclined to the axis and cuts all the generators of a regular cone.

If the distance from a fixed point is greater than the distance from a fixed straight line then what is the value of eccentricity?

If the distance from a fixed straight line is equal to the distance from a fixed point then what is the value of eccentricity?

If the distance from a fixed straight line is 5mm and the distance from a fixed point is 14mm then what is the name of the conic section?

If the distance from the directrix is 5 units and the distance from the focus is 3 units then what is the value of eccentricity?

If the distance from the directrix is greater than the distance from the focus then what is the value of eccentricity?

If the distance from a fixed straight line is equal to the distance from a fixed point then what is the name of the conic section?

If the distance from a fixed point is greater than the distance from a fixed straight line then what is the name of the conic section?

If the distance from the directrix is 5 units and the distance from the focus is 3 units then what is the name of the conic section?

If the distance from the focus is 3 units and the distance from the directrix is 3 units, then what is the name of the conic section?

If the distance from the focus is 2 mm and the distance from the directrix is 0.5 mm then what is the value of eccentricity?

If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the name of the conic?

If the distance from the focus is 2 mm and the distance from the directrix is 0.5 mm then what is the name of the conic section?

If the distance from the focus is 3 units and the distance from the directrix is 3 units, then how much is the eccentricity?

If the value of eccentricity is 12, then what is the name of the conic?

If the distance from the focus is 10 units and the distance from the directrix is 30 units, then what is the eccentricity?

Which of the following has an eccentricity less than one?

Which of the following conics has an eccentricity of unity?

The ratio of the distance from the focus to the distance from the directrix is called as eccentricity.

The locus of point moving in a plane such that the distance between a fixed point and a fixed straight line is constant is called as

10 BASICS OF CONIC SECTIONS - 1

While cutting, if the plane is at an angle and it cuts all the generators, then the conic formed is called as

In conics, the Â Â Â Â Â Â Â Â Â Â Â is revolving to form two anti-parallel cones joined at the apex.

Which of the following is not a conic section?

When the plane cuts the cone at angle parallel to the axis of the cone, then Â Â Â Â Â Â Â Â Â Â Â is formed.

The sections cut by a plane on a right circular cone are called as

Which of the following is a conic section?

Logarithmic spiral is also called Equiangular spiral.

The mosquito coil we generally see in house hold purposes and heating coils in electrical heater etc are generally which spiral.

In logarithmic Spiral, the radius vectors are in arithmetical progression.

Cyclone iv. Lituus spiral

Fermatâ€™s spiral iv. r=ÆŸ1/2

Match the following. Given points are about spirals.

Which of the following does not represents an Archemedian spiral?

Which of the following represents an Archemedian spiral?

â€˜Hypoâ€™ as prefix to cycloids give that the generating circle is inside the directing circle.

For inferior trochoid or inferior epitrochoid the curve touches the directing line or directing circle.

The generating point is outside the generating circle for

The generating circle will be inside the directing circle for

When the circle rolls along another circle inside it, the curve is called a

Mathematical equation for Involute is

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â is a curve generated by a point on the circumference of a circle, which rolls without slipping along another circle outside it.