# Multiple choice question for engineering

## Set 1

1. Choose the correct option.

### View Answer

2. Match the following.

1. E < 1 i. Rectangular hyperbola

2. E = 1 ii. Hyperbola

3. E > 1 iii. Ellipse

4. E > 1 iv. Parabola

a) 1, i; 2, ii; 3, iii; 4, iv

b) 1, ii; 2, iii; 3, iv; 4, i

c) 1, iii; 2, iv; 3, ii; 4, i

d) 1, iv; 2, iii; 3, ii; 4, i

### View Answer

3. A plane is parallel to a base of regular cone and cuts at middle. The cross-section is __________

a) Circle

b) Parabola

c) Hyperbola

d) Ellipse

### View Answer

4. The cross-section is a _________ 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

### View Answer

5. The curve formed when eccentricity is equal to one is _________

a) Parabola

b) Circle

c) Semi-circle

d) Hyperbola

### View Answer

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

a) Parabola

b) Hyperbola

c) Circle

d) Ellipse

### View Answer

7. A plane cuts the cylinder the plane is not parallel to the base and cuts all the generators. The Cross-section is _________

a) Circle

b) Ellipse

c) Parabola

d) Hyperbola

### View Answer

8. A plane cuts the cylinder and the plane is parallel to the base and cuts all the generators. The Cross-section is _________

a) Circle

b) Ellipse

c) Parabola

d) Rectangular hyperbola

### View Answer

9. The curve which has eccentricity zero is _______

a) Parabola

b) Ellipse

c) Hyperbola

d) Circle

### View Answer

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

a) True

b) False

### View Answer

## Set 2

1. Using how many methods can you draw perpendicular lines through a point within the lines?

a) 1

b) 2

c) 3

d) 4

### View Answer

2. How many ways can we draw parallel lines to an existing line?

a) 1

b) 2

c) 3

d) 4

### View Answer

3. While drawing perpendicular line through a point which is nearer to the middle of a given line, ______ is cut at two points on the line.

a) A circle

b) A square

c) A rectangle

d) An arc

### View Answer

4. While drawing a perpendicular to a given line through a point nearer to the end of the line, which of the following properties of the circle is used?

a) The diameter of a circle always subtends an angle of 90˚ on the circumference.

b) The angle at the circumference is half the angle at the centre of the circle.

c) The summation of the opposite angles of a quadrilateral is always 180˚.

d) In an arc the angle subtended by any two points on the circumference is always same.

### View Answer

5. For drawing a perpendicular through a point outside a given line, which of the following method is used after drawing an arc from that point to the line intersecting at two points?

a) Angle bisector

b) Subtending an angle

c) Perpendicular bisector

d) Drawing a quadrilateral

### View Answer

6. While drawing a perpendicular to a line from a point within the line but nearer to the end of the line, all the arcs drawn in the process are of _______

a) Different radii

b) Different radii but one

c) Same radii but one

d) Same radii

### View Answer

7. In the given figure which of the following construction line is drawn first?

a) Line AP

b) Arc DPC

c) Arc DQC

d) Line DC

### View Answer

8. For drawing parallel lines to a given line through a given point we make use of ____

a) Arcs

b) Triangles

c) Lines

d) Quadrilaterals

### View Answer

9. Which of the following arcs is made first to draw a parallel line to the given line PQ?

a) A

b) B

c) C

d) D

### View Answer

10. While drawing a parallel line to the given line through a given distance, what all we need to draw?

a) Quadrilaterals

b) Arcs and tangent

c) Tangents

d) Circles

### View Answer

## Set 3

1. What happens to the voltage in a capacitive circuit when the frequency increases?

a) Increases

b) Decreases

c) Remains the same

d) Becomes zero

### View Answer

2. When voltage across a capacitor increases, what happens to the charge stored in it?

a) Increases

b) Decreases

c) Becomes zero

d) Cannot be determined

### View Answer

3. What happens to the current flow in a fully charged capacitor?

a) Current flow stops

b) Current flow doubles

c) Current flow becomes half its original value

d) Current flow becomes one-fourth its original value

### View Answer

4. What is the correct formula for capacitive reactance?

a) Xc=1/(2*f*pi*C)

b) Xc=(2*f*pi*C)

c) Xc=1/(f*pi*C)

d) Xc=I/(2*f*pi*C)

### View Answer

5. Calculate the capacitance of a capacitor that stores 80microC of charge and has a voltage of 4V.

a) 20F

b) 20microF

c) 10F

d) 10microF

### View Answer

6. What happens to the current in a capacitive circuit when the frequency increases?

a) Increases

b) Decreases

c) Remains the same

d) Becomes zero

### View Answer

7. Calculate the current in the capacitor having 2V supply voltage and 3F capacitance in 2seconds.

a) 2A

b) 5A

c) 6A

d) 3A

### View Answer

8. If 2V is supplied to a 3F capacitor, calculate the charge stored in the capacitor.

a) 1.5C

b) 6C

c) 2C

d) 3C

### View Answer

9. A 30 microF capacitor is connected across a 400V, 50Hz supply. Calculate the capacitive reac-tance.

a) 102 ohm

b) 123.4 ohm

c) 106.2 ohm

d) 143.2 ohm

### View Answer

10. A 30 microF capacitor is connected across a 400V, 50Hz supply. Calculate the current.

a) 6.67A

b) 3.77A

c) 5.65A

d) 2.33A

### View Answer

## Set 4

1. The resistance of pure metals ___________

a) Increases with increase in temperature

b) Decreases with increase in temperature

c) Remains the same with increase in temperature

d) Becomes zero with increase in temperature

### View Answer

2. The resistance of insulators __________

a) Increases with increase in temperature

b) Decreases with increase in temperature

c) Remains the same with increase in temperature

d) Becomes zero with increase in temperature

### View Answer

3. Which of the following statements are true about metals?

a) Metals have a positive temperature coefficient

b) Metals have a negative temperature coefficient

c) Metals have zero temperature coefficient

d) Metals have infinite temperature coefficient

### View Answer

4. Which of the following statements are true about insulators?

a) Insulators have a positive temperature coefficient

b) Insulators have a negative temperature coefficient

c) Insulators have zero temperature coefficient

d) Insulators have infinite temperature coefficient

### View Answer

5. What is the unit of temperature coefficient?

a) ohm/centigrade

b) ohm-centigrade

c) centigrade^{-1}

d) centigrade

### View Answer

^{-1}.

6. A copper coil has a resistance of 200 ohm when its mean temperature is 0 degree centigrade. Calculate the resistance of the coil when its mean temperature is 80 degree centigrade.

a) 268.5 ohm

b) 268.5 kilo-ohm

c) 286.5 ohm

d) 286.5 kilo-ohm

### View Answer

^{-1}R1=R0(1+temp. coeff.*T1)= 200(1+0.00428*80)= 268.5 ohm.

7. The temperature of a coil cannot be measured by which of the following methods?

a) Thermometer

b) Increase in resistance of the coil

c) Thermo-junctions embedded in the coil

d) Caloriemeter

### View Answer

8. The rise or fall in resistance with the rise in temperature depends on________

a) The property of the conductor material

b) The current in the metal

c) Both the given options

d) Does not depend on any factor

### View Answer

9. If the temperature is increased in semi-conductors such that the resistance incessantly falls, it is termed as_______

a) Avalanche breakdown

b) Zener breakdown

c) Thermal runway

d) Avalanche runway

### View Answer

10. Materials having resistance almost equal to zero is_______

a) Semi-conductor

b) Conductor

c) Superconductors

d) Insulators

### View Answer

## Set 5

1. If the flow of electric current is parallel to the magnetic field, the force will be ______

a) Zero

b) Infinity

c) Maximum

d) Half the original value

### View Answer

2. The force existing between two infinite parallel conductors is inversely proportional to ________

a) Radius of the conductors

b) Current in one of the conductors

c) The product of the current in the two conductors

d) The distance between the two conductors

### View Answer

3. When the distance of operation between the two conductors increases, what happens to the force between the two conductors?

a) Increases

b) Decreases

c) Remains the same

d) Becomes zero

### View Answer

4. Which of the following is used to determine the direction of magnetic field in a current carrying conductor?

a) Left hand thumb rule

b) Right hand thumb rule

c) Right hand palm rule

d) Left hand palm rule

### View Answer

5. According to Flemming’s left hand rule, the index finger denotes ________

a) Direction of magnetic field

b) Direction of current

c) Direction of force

d) Direction of force as well as current

### View Answer

6. According to Flemming’s left hand rule, the middle finger denotes _________

a) Direction of magnetic field

b) Direction of current

c) Direction of force

d) Direction of force as well as current

### View Answer

7. According to Flemming’s left hand rule, the thumb denotes _________

a) Direction of magnetic field

b) Direction of current

c) Direction of force

d) Direction of force as well as current

### View Answer

8. The relation between the direction of force and the direction of magnetic field in a current carrying conductor is?

a) Same direction

b) Opposite direction

c) Perpendicular

d) Unrelated

### View Answer

9. The relation between the direction of current and the direction of magnetic field in a current carrying conductor is?

a) Same direction

b) Opposite direction

c) Perpendicular

d) Unrelated

### View Answer

10. The relation between the direction of current and the direction of force in a current carrying conductor is?

a) Same direction

b) Opposite direction

c) Perpendicular

d) Unrelated