In a Doppler VOR (DVOR) the reference signal is _____, the bearing signal is ______ and the direction of rotation of the bearing signal is ______. a. AM, FM, anti-clockwise b. AM, FM, clockwise c. FM, AM, anti-clockwise d. FM, AM, clockwise

In a Doppler VOR (DVOR) the reference signal is _____, the bearing signal is ______ and the  direction of rotation of the bearing signal is ______.  
a. AM, FM, anti-clockwise  
b. AM, FM, clockwise  
c. FM, AM, anti-clockwise  
d. FM, AM, clockwise
by

1 Answer

Answer :

a. AM, FM, anti-clockwise
by

Related questions

An aircraft is required to intercept and home to a VOR along the 064 radial. The OBS should be set to: a. 064 to get the correct needle sense and a TO indication b. 244 to get the correct needle sense and a TO indication c. 064 to get the correct needle sense and a FROM indication d. 244 to get the correct needle sense and a FROM indication

Description : An aircraft is required to intercept and home to a VOR along the 064 radial. The OBS should be set to: a. 064 to get the correct needle sense and a TO indication b. 244 to get the ... the correct needle sense and a FROM indication d. 244 to get the correct needle sense and a FROM indication

Last Answer : b. 244 to get the correct needle sense and a TO indication

Both the VOR and the ADF in an aircraft are correctly tuned and identified. The indications from both are shown on the RMI illustrated. The information on the RMI indicates: a. That the aircraft is heading 033° (M), is on the 310° radial from the VOR, and bears 050° (M) from the NDB b. That the aircraft is heading 330° (M), is on the 310° radial from the VOR, and bears 050° (M) from the NDB c. That the aircraft is heading 330° (M), is on the 130° radial from the VOR, and bears 050° (M) from the NDB d. That the aircraft is heading 330° (M), is on the 130° radial from the VOR, and bears 230° (M) from the NDB

Description : Both the VOR and the ADF in an aircraft are correctly tuned and identified. The indications from both are shown on the RMI illustrated. The information on the RMI indicates: a. That the aircraft is heading 033° (M ... 330° (M), is on the 130° radial from the VOR, and bears 230° (M) from the NDB

Last Answer : d. That the aircraft is heading 330° (M), is on the 130° radial from the VOR, and bears 230° (M) from the NDB

At a range of 200nm from a VOR, if there is an error of 1°, how far off the centreline is the aircraft? a. 3.5nm b. 1.75nm c. 7nm d. 1nm

Description : At a range of 200nm from a VOR, if there is an error of 1°, how far off the centreline is the aircraft? a. 3.5nm b. 1.75nm c. 7nm d. 1nm

Last Answer : a. 3.5nm

Both the VOR and the ADF in an aircraft are correctly tuned and identified. The indications from both are shown on the RMI illustrated. The information on the RMI indicates: a. That the aircraft is heading 033° (M), is on the 310° radial from the VOR, and bears 050° (M) from the NDB b. That the aircraft is heading 330° (M), is on the 310° radial from the VOR, and bears 050° (M) from the NDB c. That the aircraft is heading 330° (M), is on the 130° radial from the VOR, and bears 050° (M) from the NDB d. That the aircraft is heading 330° (M), is on the 130° radial from the VOR, and bears 230° (M) from the NDB

Description : Both the VOR and the ADF in an aircraft are correctly tuned and identified. The indications from both are shown on the RMI illustrated. The information on the RMI indicates: a. That the aircraft is heading 033° (M ... 330° (M), is on the 130° radial from the VOR, and bears 230° (M) from the NDB

Last Answer : d. That the aircraft is heading 330° (M), is on the 130° radial from the VOR, and bears 230° (M) from the NDB

An aircraft is attempting to home to a VOR on the 064 radial. The CDI shows 4 dots fly right with a TO indication. At the same time the co-located DME shows a range of 45nm. Where is the aircraft in relation to the required track? a. 6nm right of track b. 3nm right of track c. 6nm left of track d. 3nm left of track

Description : An aircraft is attempting to home to a VOR on the 064 radial. The CDI shows 4 dots fly right with a TO indication. At the same time the co-located DME shows a range of 45nm. Where is the aircraft in relation ... right of track b. 3nm right of track c. 6nm left of track d. 3nm left of track

Last Answer : c. 6nm left of track

An aircraft wishes to track a VOR along the 274 radial. If variation is 10° W, what should be set on the OBS? a. 274 b. 264 c. 094 d. 084

Description : An aircraft wishes to track a VOR along the 274 radial. If variation is 10° W, what should be set on the OBS? a. 274 b. 264 c. 094 d. 084

Last Answer : c. 094

An aircraft is tracking inbound to a VOR beacon on the 105 radial. The setting the pilot should put on the OBS and the CDI indications are: a. 285, TO b. 105, TO c. 285, FROM d. 105, FROM

Description : An aircraft is tracking inbound to a VOR beacon on the 105 radial. The setting the pilot should put on the OBS and the CDI indications are: a. 285, TO b. 105, TO c. 285, FROM d. 105, FROM

Last Answer : a. 285, TO

The VOR indications on an RMI whose deviation is not zero: a. Are magnetic b. Are compass c. Are relative d. Must have deviation applied before being used

Description : The VOR indications on an RMI whose deviation is not zero: a. Are magnetic b. Are compass c. Are relative d. Must have deviation applied before being used

Last Answer : a. Are magnetic

A basic 2D RNAV system will determine tracking information from: a. Twin DME b. VOR/DME c. Twin VOR d. Any of the above

Description : A basic 2D RNAV system will determine tracking information from: a. Twin DME b. VOR/DME c. Twin VOR d. Any of the above

Last Answer : b. VOR/DME

Which of the following would give the best indication of speed? a. A VOR on the flight plan route b. A VOR off the flight plan route c. A DME on the flight plan route d. A DME off the flight plan route

Description : Which of the following would give the best indication of speed? a. A VOR on the flight plan route b. A VOR off the flight plan route c. A DME on the flight plan route d. A DME off the flight plan route

Last Answer : c. A DME on the flight plan route

DME and VOR are “frequency paired” because: a. The same receiver can be used for both aids b. The VOR transmitter is easily converted to the required DME frequency c. Cockpit workload is reduced d. Both ground transmitter aerials can be placed on the same site if required

Description : DME and VOR are “frequency paired” because: a. The same receiver can be used for both aids b. The VOR transmitter is easily converted to the required DME frequency c. Cockpit workload is reduced d. Both ground transmitter aerials can be placed on the same site if required

Last Answer : c. Cockpit workload is reduced

The IRS position can be updated: a. On the ground only b. At designated positions en-route and on the ground c. On the ground and overhead VOR/DME d. At selected waypoints and on the ground

Description : The IRS position can be updated: a. On the ground only b. At designated positions en-route and on the ground c. On the ground and overhead VOR/DME d. At selected waypoints and on the ground

Last Answer : a. On the ground only

The frequency on which ATIS can be found is: a. Discrete VHF or VOR frequency b. Discrete VHF only c. VOR frequency only d. Any ATC frequency

Description : The frequency on which ATIS can be found is: a. Discrete VHF or VOR frequency b. Discrete VHF only c. VOR frequency only d. Any ATC frequency

Last Answer : a. Discrete VHF or VOR frequency

What radius from a terminal VOR is MSA provided? a. 25nm b. 10nm c. 15nm d. 15km

Description : What radius from a terminal VOR is MSA provided? a. 25nm b. 10nm c. 15nm d. 15km

Last Answer : a. 25nm

Clockwise of Anti clockwise rotation about the vertical axis to the perpendicular arm is provided through (A) Shoulder swivel (B) Elbow extension (C) Arm sweep (D) Wrist bend

Description : Clockwise of Anti clockwise rotation about the vertical axis to the perpendicular arm is provided through (A) Shoulder swivel (B) Elbow extension (C) Arm sweep (D) Wrist bend

Last Answer : C

Positive values for the rotation angle θ defines a.Counter clockwise rotations about the end points b.Counter clockwise translation about the pivot point c.Counter clockwise rotations about the pivot point d.Negative direction

Description : Positive values for the rotation angle θ defines a.Counter clockwise rotations about the end points b.Counter clockwise translation about the pivot point c.Counter clockwise rotations about the pivot point d.Negative direction

Last Answer : c.Counter clockwise rotations about the pivot point

The direction of rotation of a 3-phase induction motor is clockwise when it is supplied with 3-phase sinusoidal

Description : The direction of rotation of a 3-phase induction motor is clockwise when it is supplied with 3-phase sinusoidal voltage having phase sequence A-B-C. For counter clockwise rotation of the motor, the phase sequence of the power supply should be  (A) B-C-A (B) C-A-B (C) A-C-B (D) B-C-A or C-A-B

Last Answer : The direction of rotation of a 3-phase induction motor is clockwise when it is supplied with 3-phase sinusoidal voltage having phase sequence A-B-C. For counter clockwise rotation of the motor, the phase sequence of the power supply should be  A-C-B 

The code “BECMG FM 1100 –RASH” in a METAR means: a. From 1100UTC, the cessation of rain showers b. Becoming from 1100UTC slight rain showers c. Becoming from 1100UTC rain showers d. Becoming from 1100UTC till 0000UTC slight rain showers

Description : The code “BECMG FM 1100 –RASH” in a METAR means: a. From 1100UTC, the cessation of rain showers b. Becoming from 1100UTC slight rain showers c. Becoming from 1100UTC rain showers d. Becoming from 1100UTC till 0000UTC slight rain showers

Last Answer : b. Becoming from 1100UTC slight rain showers

In hydrodynamic bearing, when the shaft begins to rotate in clockwise direction, (A) The journal climbs to the right side of the bearing without metal to metal contact (B) The journal climbs to the left side of the bearing without metal to metal contact (C) The journal sinks down to the bottom of the bearing (D) The journal is at the center of the bearing

Description : In hydrodynamic bearing, when the shaft begins to rotate in clockwise direction, (A) The journal climbs to the right side of the bearing without metal to metal contact (B) The journal climbs to the left ... sinks down to the bottom of the bearing (D) The journal is at the center of the bearing

Last Answer : (A) The journal climbs to the right side of the bearing without metal to metal contact

What causes wind? a. Difference in pressure b. Rotation of the earth c. Frontal systems d. Difference in temperature

Description : What causes wind? a. Difference in pressure b. Rotation of the earth c. Frontal systems d. Difference in temperature

Last Answer : a. Difference in pressure

How will an oncoming aircraft on a line of constant bearing appear visually? a. There will be no relative movement and it will appear to be very small until seconds before the collision b. There will be no relative movement and it will appear to be very small until seconds before the aircraft passes close by c. There will be no relative movement and it will appear to be very small until seconds before the aircraft passes above d. There will be no relative movement and it will appear to be very small until seconds before the aircraft passes well clear

Description : How will an oncoming aircraft on a line of constant bearing appear visually? a. There will be no relative movement and it will appear to be very small until seconds before the collision ... relative movement and it will appear to be very small until seconds before the aircraft passes well clear

Last Answer : a. There will be no relative movement and it will appear to be very small until seconds before the collision

The Q code for the magnetic bearing from a station is: a. QDM b. QDR c. QTE d. QNH

Description : The Q code for the magnetic bearing from a station is: a. QDM b. QDR c. QTE d. QNH

Last Answer : b. QDR

The Q code for TRUE BEARING from a station is: a. QDR b. QFE c. QUJ d. QTE

Description : The Q code for TRUE BEARING from a station is: a. QDR b. QFE c. QUJ d. QTE

Last Answer : d. QTE

A precision Approach Procedure is defined as: a. An approach using bearing, elevation and distance information b. An approach with a crew of at least 2 pilots trained for such operations c. An instrument approach procedure utilizing azimuth and glide path information provided by an ILS or a PAR

Description : A precision Approach Procedure is defined as: a. An approach using bearing, elevation and distance information b. An approach with a crew of at least 2 pilots trained for such ... An instrument approach procedure utilizing azimuth and glide path information provided by an ILS or a PAR

Last Answer : c. An instrument approach procedure utilizing azimuth and glide path information provided by an ILS or a PAR

With reference to Traffic Collision Avoidance Systems, the difference between TCAS I and II is that: a. TCAS II can provide Traffic Advisories and Resolution Advisories whilst TCAS I can only provide Traffic Advisories b. TCAS II can only be fitted to large aircrafts which carry more than 30 passengers. While TCAS I can be fitted to any aircraft. c. TCAS I can be fitted aircrafts which carry transponders with Mode A only while TCAS II can be fitted to aircrafts whose transponders include either Mode C or Mode S. d. TCAS II can only be to aircraft which are equipped with EFIS

Description : With reference to Traffic Collision Avoidance Systems, the difference between TCAS I and II is that: a. TCAS II can provide Traffic Advisories and Resolution Advisories whilst TCAS I can only provide Traffic ... C or Mode S. d. TCAS II can only be to aircraft which are equipped with EFIS

Last Answer : a. TCAS II can provide Traffic Advisories and Resolution Advisories whilst TCAS I can only provide Traffic Advisories

With reference to Traffic Collision Avoidance Systems: a. RAs may be disregarded only when the pilot visually identifies the potentially conflicting traffic and decides that no deviation is necessary and has the clearance confirmed by ATC b. RAs may be disregarded only when the pilot visually identifies the potentially conflicting traffic and decides that no deviation is necessary and has advised ATC of the other aircraft’s proximity c. RAs must never be disregarded d. RAs may be disregarded only when the pilot visually identifies the potentially conflicting traffic and decides that no deviation is necessary

Description : With reference to Traffic Collision Avoidance Systems: a. RAs may be disregarded only when the pilot visually identifies the potentially conflicting traffic and decides that no deviation ... pilot visually identifies the potentially conflicting traffic and decides that no deviation is necessary

Last Answer : d. RAs may be disregarded only when the pilot visually identifies the potentially conflicting traffic and decides that no deviation is necessary

The magnetic heading reference unit has a precision rate of: a. 1°/min b. 2°/min c. 5°/min d. 3°/min

Description : The magnetic heading reference unit has a precision rate of: a. 1°/min b. 2°/min c. 5°/min d. 3°/min

Last Answer : b. 2°/min

What is required for navigation in IMC? a. Radio equipment and equipment for guidance until visual point b. Anti-icing equipment c. A serviceable weather radar d. One VHF box and one HF box

Description : What is required for navigation in IMC? a. Radio equipment and equipment for guidance until visual point b. Anti-icing equipment c. A serviceable weather radar d. One VHF box and one HF box

Last Answer : a. Radio equipment and equipment for guidance until visual point

If you switch on the anti-collision light in IMC, what are the likely effects? a. Depth perception increases b. You can suffer from dizziness and disorientation c. You can suffer from Color Illusion d. Binocular vision is affected

Description : If you switch on the anti-collision light in IMC, what are the likely effects? a. Depth perception increases b. You can suffer from dizziness and disorientation c. You can suffer from Color Illusion d. Binocular vision is affected

Last Answer : b. You can suffer from dizziness and disorientation

If so equipped, when should an aircraft display the anti-collision light? a. Only at night in flight, but not on the ground if being towed b. Whilst taxiing but not whilst being towed c. Only at night with engines running d. At all times on the ground when the engines are running

Description : If so equipped, when should an aircraft display the anti-collision light? a. Only at night in flight, but not on the ground if being towed b. Whilst taxiing but not whilst being towed c. Only at night with engines running d. At all times on the ground when the engines are running

Last Answer : d. At all times on the ground when the engines are running

At an aircraft taxiing speed of 10mph, the anti-skid braking system is: a. Inoperative b. Operative c. Operative only on the nosewheel brakes d. Operative only on the main wheel brakes

Description : At an aircraft taxiing speed of 10mph, the anti-skid braking system is: a. Inoperative b. Operative c. Operative only on the nosewheel brakes d. Operative only on the main wheel brakes

Last Answer : a. Inoperative

With a gas turbine engine, engine anti-icing should be selected ‘ON’: a. Whenever the igniters are on b. Whenever the IOAT is +10°C or below and the air contains visible moisture c. Whenever the TOAT is +10°C or below and it is raining d. Whenever the ice detector system warning light comes on

Description : With a gas turbine engine, engine anti-icing should be selected ON': a. Whenever the igniters are on b. Whenever the IOAT is +10°C or below and the air contains visible moisture c. Whenever ... is +10°C or below and it is raining d. Whenever the ice detector system warning light comes on

Last Answer : b. Whenever the IOAT is +10°C or below and the air contains visible moisture

The DME in an aircraft, cruising at FL210, fails to achieve a lock on a DME at MSL at a range of 210nm. The reason for this is: a. The beacon is saturated b. The aircraft is beyond the maximum usable range for DME c. The aircraft is beyond line of sight range d. The aircraft signal is too weak at the range to trigger a response

Description : The DME in an aircraft, cruising at FL210, fails to achieve a lock on a DME at MSL at a range of 210nm. The reason for this is: a. The beacon is saturated b. The aircraft is beyond ... is beyond line of sight range d. The aircraft signal is too weak at the range to trigger a response

Last Answer : c. The aircraft is beyond line of sight range

You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Description : You have been intercepted in the airspace of a foreign contracting state. What is the signal for ‘clear to proceed’ from the intercepting aircraft? a. Rocking wings b. Flashing lights c. Cut across track d. Breaking turn up and left

Last Answer : d. Breaking turn up and left

A marshaller crosses his/her hands in front of the face, palms outward and then moves the arms outwards. What does the signal indicate? a. Clear to move forward b. Brakes off c. Remove chocks d. Clear to close all engines

Description : A marshaller crosses his/her hands in front of the face, palms outward and then moves the arms outwards. What does the signal indicate? a. Clear to move forward b. Brakes off c. Remove chocks d. Clear to close all engines

Last Answer : c. Remove chocks

You see a double white cross in a signal square, what does this mean? a. Glider flying in progress b. Tow ropes and banners may be dropped c. Runway unfit for aircraft movement d. Aerodrome unfit for aircraft movement

Description : You see a double white cross in a signal square, what does this mean? a. Glider flying in progress b. Tow ropes and banners may be dropped c. Runway unfit for aircraft movement d. Aerodrome unfit for aircraft movement

Last Answer : a. Glider flying in progress

In recovery from a spin: a. Ailerons should be kept neutral b. Airspeed increases c. Ailerons used to stop the spin d. Rudder and ailerons used against the direction of spin direction

Description : In recovery from a spin: a. Ailerons should be kept neutral b. Airspeed increases c. Ailerons used to stop the spin d. Rudder and ailerons used against the direction of spin direction

Last Answer : a. Ailerons should be kept neutral

The instruction “ORBIT” from ATC means that the aircraft should: a. Carry out a go around b. Continue with 360 degree turns c. Carry out one 360 degree turn only d. Reverse the direction of the turn

Description : The instruction “ORBIT” from ATC means that the aircraft should: a. Carry out a go around b. Continue with 360 degree turns c. Carry out one 360 degree turn only d. Reverse the direction of the turn

Last Answer : c. Carry out one 360 degree turn only

What is the minimum vertical separation between IFR flights flying in the same direction below FL 290? a. 500ft b. 1000ft c. 2000ft d. 4000ft

Description : What is the minimum vertical separation between IFR flights flying in the same direction below FL 290? a. 500ft b. 1000ft c. 2000ft d. 4000ft

Last Answer : c. 2000ft

Aircraft A flies in VMC with an ATC clearance within a control area. Aircraft B without ATC clearance approaches at roughly the same height on a converging heading. Who has the right of way? a. Aircraft A, regardless of the direction from which B approaches b. Aircraft B, regardless of the direction from which A approaches c. Aircraft A, if B is to the right of him d. Aircraft B, if A is to the left of him

Description : Aircraft A flies in VMC with an ATC clearance within a control area. Aircraft B without ATC clearance approaches at roughly the same height on a converging heading. Who has the right of way? a. Aircraft A, regardless ... , if B is to the right of him d. Aircraft B, if A is to the left of him

Last Answer : d. Aircraft B, if A is to the left of him

In CNC Program M03 is refer to…… a.Spindle ON in Clockwise rotation b.Spindle ON in Counter Clockwise rotation c.Spindle OFF in Clockwise rotation d.Spindle OFF in Counter Clockwise rotation

Description : In CNC Program M03 is refer to…… a.Spindle ON in Clockwise rotation b.Spindle ON in Counter Clockwise rotation c.Spindle OFF in Clockwise rotation d.Spindle OFF in Counter Clockwise rotation

Last Answer : a.Spindle ON in Clockwise rotation

The bearing of line AB is 152° 30' and angle ABC measured clockwise is 124° 28'. The bearing of BC is (A) 27° 52' (B) 96° 58' (C) 148° 08' (D) 186° 58'

Description : The bearing of line AB is 152° 30' and angle ABC measured clockwise is 124° 28'. The bearing of BC is (A) 27° 52' (B) 96° 58' (C) 148° 08' (D) 186° 58'

Last Answer : (B) 96° 58'

Reduced bearing of a line is an angle between (A) North line and given line measured clockwise (B) North line and given line measured anticlockwise (C) East or west and the given line (D) Given line and the part of the meridian whether N end or S end, lying adjacent to it

Description : Reduced bearing of a line is an angle between (A) North line and given line measured clockwise (B) North line and given line measured anticlockwise (C) East or west and the given line (D) Given line and the part of the meridian whether N end or S end, lying adjacent to it

Last Answer : (D) Given line and the part of the meridian whether N end or S end, lying adjacent to it

Antiparallel strands of a DNA molecule means that (a) one strand turns clockwise (b) one strand turns anti-clockwise (c) the phosphate groups of two DNA strands, at their ends, share the same position (d) the phosphate groups at the start of two DNA strands are in opposite position (pole).

Description : Antiparallel strands of a DNA molecule means that (a) one strand turns clockwise (b) one strand turns anti-clockwise (c) the phosphate groups of two DNA strands, at their ends, share the same position (d) the phosphate groups at the start of two DNA strands are in opposite position (pole).

Last Answer : (d) the phosphate groups at the start of two DNA strands are in opposite position (pole).

The included angles of a theodolite traverse, are generally measured (A) Clockwise from the forward station (B) Anti-clockwise from the back station (C) Anti-clockwise from the forward station (D) Clockwise from the back station

Description : The included angles of a theodolite traverse, are generally measured (A) Clockwise from the forward station (B) Anti-clockwise from the back station (C) Anti-clockwise from the forward station (D) Clockwise from the back station

Last Answer : (D) Clockwise from the back station

The operation of resection involves the following steps 1. Rough orientation of the plane table 2. The three lines form a triangle of error 3. Drawing lines back through the three control points 4. Select a point in the triangle of error such that each ray is equally rotated either clockwise or anti clockwise 5. The points obtained by three rays are the correct location. The correct sequence is (A) 1, 3, 2, 4, 5 (B) 1, 2, 3, 4, 5 (C) 1, 4, 3, 2, 5 (D) 1, 3, 2, 4, 5

Description : The operation of resection involves the following steps 1. Rough orientation of the plane table 2. The three lines form a triangle of error 3. Drawing lines back through the three control points 4. Select a point in the triangle of error ... 2, 3, 4, 5 (C) 1, 4, 3, 2, 5 (D) 1, 3, 2, 4, 5

Last Answer : (A) 1, 3, 2, 4, 5

A,B are start walking around a Circular park of radius 70m. They start at the same point, and A goes clockwise at 10m/s, while b goes anti-clockwise at 20m/s.How many times will they cross each other at the starting point if they walk for 30 minutes? a) 20 b) 40 c) 60 d) 80 e) None of the above

Description : A,B are start walking around a Circular park of radius 70m. They start at the same point, and A goes clockwise at 10m/s, while b goes anti-clockwise at 20m/s.How many times will they cross each other at the starting point if they walk for 30 minutes? a) 20 b) 40 c) 60 d) 80 e) None of the above

Last Answer : Radius = 70m, So circumference = 2 (22/7) 70 =440m Relative speed = 10 +20 = 30m/s They will meet everytime at the starting point when the distance covered by both put together is a multiple of 440 ... =1800/44 =40.9 So they will meet 40 times (we need to ignore the decimal part). Answer : b

A,B are start walking around a Circular park of radius 70m. They start at the same point, and A goes clockwise at 10m/s, while b goes anti-clockwise at 20m/s.How many times will they cross each other at the starting point if they walk for 30 minutes? a) 20 b) 40 c) 60 d) 80 e) None of the above

Description : A,B are start walking around a Circular park of radius 70m. They start at the same point, and A goes clockwise at 10m/s, while b goes anti-clockwise at 20m/s. How many times will they cross each other at the starting point if they walk for 30 minutes? a) 20 b) 40 c) 60 d) 80 e) None of the above

Last Answer : Radius = 70m, So circumference = 2 (22/7) 70 =440m Relative speed = 10 +20 = 30m/s They will meet everytime at the starting point when the distance covered by both put together is a multiple of 440 ... =1800/44 =40.9 So they will meet 40 times (we need to ignore the decimal part). Answer : b

In acoustics, _____ is the apparent change in frequency or pitch when a sound source moves either toward or away from a listener. A. flanking B. reverberation C. Doppler effect D. echo

Description : In acoustics, _____ is the apparent change in frequency or pitch when a sound source moves either toward or away from a listener. A. flanking B. reverberation C. Doppler effect D. echo

Last Answer : C. Doppler effect