The maximum permissible noise level to which a man working in a chemical plant can be exposed for eight hours per day is about __________ decibels. (A) 60(B) 90 (C) 105 (D) 120

The maximum permissible noise level to which a man working in a
chemical plant can be exposed for eight hours per day is about __________
decibels.
(A) 60
(B) 90
(C) 105
(D) 120
by

1 Answer

Answer :

(B) 90
by

Related questions

Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. (A) 20 (B) 60 (C) 90 (D) 120

Description : Maximum allowable noise exposure limits for a man working for 8 hours a day in a noisy chemical plant is about __________ decibels. (A) 20 (B) 60 (C) 90 (D) 120

Last Answer : (C) 90

As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise. (A) 110 (B) 85 (C) 60 (D) 45

Description : As per international norms, the maximum permissible value of noise level in the industrial environment is __________ decibels as measured at a distance of 1.5 metres from the source of noise. (A) 110 (B) 85 (C) 60 (D) 45

Last Answer : (B) 85

Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels. (A) 35 (B) 75 (C) 95 (D) 105

Description : Maximum permissible limit of industrial noise as recommended by World Health Organisation (WHO) is __________ decibels. (A) 35 (B) 75 (C) 95 (D) 105

Last Answer : (B) 75

Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. (A) 105 (B) 135 (C) 160 (D) 185

Description : Noise level audible to audience sitting in the 5th row from the stage during a large orchestra show corresponds to about __________ decibels. (A) 105 (B) 135 (C) 160 (D) 185

Last Answer : (B) 135

Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. (A) 85 (B) 105 (C) 125 (D) 145

Description : Noise emitted by a ventilation fan at a distance of 3 metres is about __________ decibels. (A) 85 (B) 105 (C) 125 (D) 145

Last Answer : (B) 105

Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels. (A) 120 (B) 140 (C) 170 (D) 200

Description : Noise level heard at a distance of about 100 metres from a jet engine with after burner is about __________ decibels. (A) 120 (B) 140 (C) 170 (D) 200

Last Answer : (C) 170

Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. (A) 75 (B) 95 (C) 120 (D) 140

Description : Noise level heard inside a bus in busy city traffic or inside a sub-way train corresponds to about __________ decibels. (A) 75 (B) 95 (C) 120 (D) 140

Last Answer : (B) 95

Noise level during normal conversation among men is about __________ decibels. (A) 10 (B) 45 (C) 90 (D) 115

Description : Noise level during normal conversation among men is about __________ decibels. (A) 10 (B) 45 (C) 90 (D) 115

Last Answer : (B) 45

Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. (A) 25 (B) 50 (C) 80 (D) 120

Description : Shouting by a man at his full voice corresponds to a voice level of about __________ decibels. (A) 25 (B) 50 (C) 80 (D) 120

Last Answer : (C) 80

Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. (A) 90 (B) 120 (C) 150 (D) 180

Description : Sound produced by an automobile horn heard at a distance of 1.5 metres corresponds to about __________ decibels. (A) 90 (B) 120 (C) 150 (D) 180

Last Answer : (B) 120

In India, which one of the following should be considered the right combination of the age in days and live body weight in kg for a lamb for its weaning ? (A) 20 days to 30 days and 6 kg to 7 kg (B) 45 days to 60 days and 8 kg to 10 kg (C) 105 days to 120 days and 18 kg to 21 kg (D) 75 days to 90 days and 12 kg to 15 kg (E) 55 days to 70 days and 9 kg to 11 kg

Description : In India, which one of the following should be considered the right combination of the age in days and live body weight in kg for a lamb for its weaning ? (A) 20 days to 30 days and 6 kg to 7 kg (B) 45 days to 60 ... (D) 75 days to 90 days and 12 kg to 15 kg (E) 55 days to 70 days and 9 kg to 11 kg

Last Answer : (C) 105 days to 120 days and 18 kg to 21 kg

The missing number in the series 40, 120, 60, 180, 90, ?, 135 is (A) 110 (B) 270 (C) 105 (D) 210

Description : The missing number in the series 40, 120, 60, 180, 90, ?, 135 is (A) 110 (B) 270 (C) 105 (D) 210

Last Answer : Answer: B

Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). (A) 1-2 (B) 5-10 (C) 15-20 (D) 25-30

Description : Ambient noise level can be reduced by __________ decibels by planting trees (like coconut, neem etc.) near public utility buildings (like hospitals & schools). (A) 1-2 (B) 5-10 (C) 15-20 (D) 25-30

Last Answer : (B) 5-10

Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels. (A) 3 (B) 30(C) 7 (D) 70

Description : Major sources of noise in furnace operation arises from air inspirators, combustion, side wall vibrations and fluctuation in the process heat load. A 50% increase in fuel firing rate may increase the furnace noise level by about __________ decibels. (A) 3 (B) 30 (C) 7 (D) 70

Last Answer : (A) 3

Noise level in a quiet private business office is about __________ decibels. (A) 25 (B) 50 (C) 70 (D) 85

Description : Noise level in a quiet private business office is about __________ decibels. (A) 25 (B) 50 (C) 70 (D) 85

Last Answer : (B) 50

. Noise level inside a jet airliner in normal flight is about __________ decibels. (A) 80 (B) 100 (C) 125 (D) 150

Description : . Noise level inside a jet airliner in normal flight is about __________ decibels. (A) 80 (B) 100 (C) 125 (D) 150

Last Answer : (B) 100

A man exposed to excessive noise level in the working environment may suffer from (A) Hearing loss (B) Rupture of ear drum (C) Nervousness & fatigue (D) All (A), (B) & (C)

Description : A man exposed to excessive noise level in the working environment may suffer from (A) Hearing loss (B) Rupture of ear drum (C) Nervousness & fatigue (D) All (A), (B) & (C)

Last Answer : (D) All (A), (B) & (C)

At what height must top rails be fitted above working platform? a. Between 90 cm (35 inches) and 110 cm (43 inches) b. Between 100 cm (39 inches) and 120 cm (47 inches) c. Between 95 cm (38 inches) and 115 cm ( 45 inches) d. Between 105 cm (41 inches)and 125 cm (49 inches)

Description : At what height must top rails be fitted above working platform? a. Between 90 cm (35 inches) and 110 cm (43 inches) b. Between 100 cm (39 inches) and 120 cm (47 inches) c. Between 95 cm (38 inches) and 115 cm ( 45 inches) d. Between 105 cm (41 inches)and 125 cm (49 inches)

Last Answer : c. Between 95 cm (38 inches) and 115 cm ( 45 inches)

A horizontal load of 120 kg/mt is to be carried by a cable suspended between supports at same level and 60 mts apart. If the maximum permissible tension is 36,000 kg the required length of cable is a.63.3 mets b.62.5 mts c.60.8 mts d.107 dynes e.60.1 mts

Description : A horizontal load of 120 kg/mt is to be carried by a cable suspended between supports at same level and 60 mts apart. If the maximum permissible tension is 36,000 kg the required length of cable is a.63.3 mets b.62.5 mts c.60.8 mts d.107 dynes e.60.1 mts

Last Answer : e. 60.1 mts

(d) Rs 1.50 Q.61. CA Co manufactures a single product and has drawn up the following flexed budget for the year. 60% 70% 80% Rs Rs Rs Direct materials 120,000 140,000 160,000 Direct labour 90,000 105,000 120,000 Production overheads 54,000 58,000 62,000 Other overheads 40,000 40,000 40,000 Total Cost 304,000 343,000 382,000 What would be the total cost in a budget that is prepared at the 77% level of activity? (a) Rs 330,300 (b) Rs 370,300 (c) Rs 373,300 (d) Rs 377,300

Description : Q.61. CA Co manufactures a single product and has drawn up the following flexed budget for the year.  60% 70% 80%  Rs Rs Rs Direct materials 120,000 140,000 160,000 Direct labour 90,000 105,000 120,000 Production ... activity? (a) Rs 330,300 (b) Rs 370,300 (c) Rs 373,300 (d) Rs 377,300

Last Answer : (b) Rs 370,300

As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m3 .(μg-microgram) (A) 10 (B) 90 (C) 800 (D) 750

Description : As per the world health organisation (WHO) specification, the maximum permissible concentration (i.e., TLV) of particulate matter in air is __________ μg/m3 .(μg-microgram) (A) 10 (B) 90 (C) 800 (D) 750

Last Answer : (B) 90

Indicate the false statement. Noise figure is defined as A. the ratio of the S/N power supplied at the input terminal of a receiver or amplifier to the S/N power supplied to the output or load resistor B. noise factor expressed in decibels C. an unwanted form of energy tending to interfere with the proper and easy reception and reproduction of wanted signal D. S/N of an ideal system divided by S/N at the output of the receiver or amplifier under test, both working at the same temperature over the same bandwidth and fed from the same source

Description : Indicate the false statement. Noise figure is defined as A. the ratio of the S/N power supplied at the input terminal of a receiver or amplifier to the S/N power supplied to the output or ... under test, both working at the same temperature over the same bandwidth and fed from the same source

Last Answer : C. an unwanted form of energy tending to interfere with the proper and easy reception and reproduction of wanted signals

The maximum permissible hardness for public supplies is (A) 95 mg/litre (B) 105 mg/litre (C) 115 mg/litre(D) 125 mg/litre

Description : The maximum permissible hardness for public supplies is  (A) 95 mg/litre  (B) 105 mg/litre  (C) 115 mg/litre (D) 125 mg/litre

Last Answer : (C) 115 mg/litre

The min and max size permissible for folded aerogramme is a) 100 X 140 & 120 X 120 b) 90 X 140 & 110 X 120 c) 80 X 140 & 100 X 120 d) None of the above

Description : The min and max size permissible for folded aerogramme is a) 100 X 140 & 120 X 120 b) 90 X 140 & 110 X 120 c) 80 X 140 & 100 X 120 d) None of the above

Last Answer : b) 90 X 140 & 110 X 120

Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is:

Description : Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is:

Last Answer : Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is: A. 60 decibles B. 70 decibels C. 80 decibels D. 100 decibels.

Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is:

Description : Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is:

Last Answer : Maximum permissible limit of noise as per "Noise Pollution Rules 2000 of India" is: A. 75 dB B. 65 dB C. 55dB D. 45dB

What is the Gcf of 60 90 105?

Description : What is the Gcf of 60 90 105?

Last Answer : The GCF is 15.

What will be the frequency of a three-phase, six pole, AC generator operating at 1800 revolutions per minute? A. 60 hertz B. 90 hertz C. 120 hertz D. 180 hertz

Description : What will be the frequency of a three-phase, six pole, AC generator operating at 1800 revolutions per minute? A. 60 hertz B. 90 hertz C. 120 hertz D. 180 hertz

Last Answer : Answer: B

What bandwidth is needed to support a capacity of 128 kbps when the signal power to noise power ratio in decibels is 100? A. 19224 Hz B. 3853 Hz C. 19244 Hz D. 3583 Hz

Description : What bandwidth is needed to support a capacity of 128 kbps when the signal power to noise power ratio in decibels is 100? A. 19224 Hz B. 3853 Hz C. 19244 Hz D. 3583 Hz

Last Answer : B. 3853 Hz

Noise Pollution is measured in a) Hertz b) Fathoms c) Manometers d) Decibels.

Description : Noise Pollution is measured in a) Hertz b) Fathoms c) Manometers d) Decibels. 

Last Answer : d) Decibels.

For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: (A) 70 litres of sand and 120 litres of aggregates (B) 70 kg of sand and 140 litres of aggregates (C) 105 litres of sand and 140 litres of aggregates (D) 105 litres of sand and 210 litres of aggregates

Description : For batching 1:3:6 concrete mix by volume, the ingredients required per bag of 50 kg cement, are: (A) 70 litres of sand and 120 litres of aggregates (B) 70 kg of sand and 140 litres of ... C) 105 litres of sand and 140 litres of aggregates (D) 105 litres of sand and 210 litres of aggregates

Last Answer : Answer: Option D

It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is? a) 2 : 3 b) 3: 2 c) 3 : 4 d) 4 : 3 e) None of these

Description : It takes eight hours for a 600 km journey, if 120 km is done by train and the rest by car. It takes 20 minutes more, if 200 km is done by train and the rest by car. The ratio of the speed of the train to that of the cars is? a) 2 : 3 b) 3: 2 c) 3 : 4 d) 4 : 3 e) None of these

Last Answer : Let the speed of the train be x km/hr and that of the car be y km/hr. Then, 120/x+480/y= 8 1/x+4/y=1/15 ....(i) And, 200/x+400/y=25/3 1/x+2/y=1/24 ....(ii) Solving (i) and (ii), we get: x = 60 and y = 80. Ratio of speeds = 60 : 80 = 3 : 4. Answer: c)

What is the maximum time interval permissible between two successive sessions of the Parliament? (1) Four months (2) Six months (3) Eight months (4) Nine months

Description : What is the maximum time interval permissible between two successive sessions of the Parliament? (1) Four months (2) Six months (3) Eight months (4) Nine months

Last Answer : (2) Six months Explanation: The period during which the House meets to conduct its business is called a session. The Constitution empowers the President to summon each House at such intervals that there ... month's gap between the two sessions. Hence the Parliament must meet at least twice a year.

Determine the maximum shearing stress and elongation in a helical steel spring composed of 20 turns of 20-mm-diameter wire on a mean radius of 90 mm when the spring is supporting a load of 1.5 kN. and G = 83 GPa. a. 200 mm b. 105.4 mm c. 150 mm d. 250 mm

Description : Determine the maximum shearing stress and elongation in a helical steel spring composed of 20 turns of 20-mm-diameter wire on a mean radius of 90 mm when the spring is supporting a load of 1.5 kN. and G = 83 GPa. a. 200 mm b. 105.4 mm c. 150 mm d. 250 mm

Last Answer : b. 105.4 mm

Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million). (A) 0.002 (B) 0.2 (C) 1.2 (D) 4.8

Description : Threshold limit value (TLV) means maximum permissible/acceptable concentration. TLV of phosgene in air is about __________ ppm (parts per million). (A) 0.002 (B) 0.2 (C) 1.2 (D) 4.8

Last Answer : (B) 0.2

Permissible noise level at Residential area during night time is : (1) 45 dB (2) 55 dB (3) 75 dB (4) 80 dB

Description : Permissible noise level at Residential area during night time is : (1) 45 dB (2) 55 dB (3) 75 dB (4) 80 dB

Last Answer : (1) 45 dB Explanation: As per the norm, the permissible noise level in residential areas is 45 db during night time, 55 db during day and in commercial areas it is 55 db during night and 65 db during day.

The Permissible noise level at Residential area during time is

Description : The Permissible noise level at Residential area during time is

Last Answer : 45dB

What is the permissible level of noise in a silent zone at daytime?

Description : What is the permissible level of noise in a silent zone at daytime?

Last Answer : 75 dB.

Permissible noise level at Residential area during night time is : (1) 45 dB (A) (2) 55 dB (A) (3) 75 dB (A) (4) 80 dB (A)

Description : Permissible noise level at Residential area during night time is : (1) 45 dB (A) (2) 55 dB (A) (3) 75 dB (A) (4) 80 dB (A)

Last Answer : 45 dB (A)

Human beings can hear the sound range between: (1) 10 to 20 decibels (2) 100 to 150 decibels (3) 50 to 60 decibels (4) None of the above

Description : Human beings can hear the sound range between: (1) 10 to 20 decibels (2) 100 to 150 decibels (3) 50 to 60 decibels (4) None of the above

Last Answer : (4) None of the above Explanation: The most accepted sound range of human being is 0 to 120 decibels.

Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2 , is (A) 70 kg/sq cm (B) 80 kg/sq cm (C) 90 kg/sq cm (D) 100 kg/sq cm

Description : Area of steel required per metre width of pavement for a length of 20 m for design wheel load 6300 kg and permissible stress in steel 1400 kg/cm2 , is (A) 70 kg/sq cm (B) 80 kg/sq cm (C) 90 kg/sq cm (D) 100 kg/sq cm

Last Answer : Answer: Option C

In a single threaded worm and worm wheel the number of teeth on the worm wheel is 60. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.90 b.120 c.60 d.45 e.107 dynes

Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 60. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.90 b.120 c.60 d.45 e.107 dynes

Last Answer : a. 90

In a single threaded worm and worm wheel the number of teeth on the worm wheel is 80. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.60 b.45 c.120 d.107 dynes e.90

Description : In a single threaded worm and worm wheel the number of teeth on the worm wheel is 80. The diameter of the effort wheel is 12 cm and that of load drum is 8 cm. The velocity ratio will be a.60 b.45 c.120 d.107 dynes e.90

Last Answer : c. 120

After how many days of absence from Parliament without permission can a M.P. be disqualified? (1) 30 days (2) 60 days (3) 90 days (4) 120 days

Description : After how many days of absence from Parliament without permission can a M.P. be disqualified? (1) 30 days (2) 60 days (3) 90 days (4) 120 days

Last Answer : (2) 60 days Explanation: The Constitution provides for disqualification of a Member of Parliament (MP) if he/she is absent continuously for 60 days from the Lok Sabha or the Rajya Sabha without permission.

After how many days of absence from Parliament without permission can a M.P. be disqualified? (1) 30 days (2) 60 days (3) 90 days (4) 120 days

Description : After how many days of absence from Parliament without permission can a M.P. be disqualified? (1) 30 days (2) 60 days (3) 90 days (4) 120 days

Last Answer : (2) 60 days Explanation: The Constitution provides for disqualification of a Member of Parliament (MP) if he/she is absent continuously for 60 days from the Lok Sabha or the Rajya Sabha without permission. Hence MPs submit leave applications when they are absent for a longer period of time.

The distance between node and adjacent antinodes is 30 cm. The wavelength is - (1) 30 cm. (2) 90 cm. (3) 120 cm. (4) 60 cm.

Description : The distance between node and adjacent antinodes is 30 cm. The wavelength is - (1) 30 cm. (2) 90 cm. (3) 120 cm. (4) 60 cm.

Last Answer : (4) 60 cm. Explanation: A node is a point along a standing wave where the wave has minimal amplitude. The opposite of a node is an anti-node, a point where the amplitude of the standing wave is a maximum.

Assuming a standard 60 Hz. input to the circuit shown in the illustration, the ripple frequency would be ____________. EL-0085 A. 30 Hz B. 60 Hz C. 90 Hz D. 120 Hz

Description : Assuming a standard 60 Hz. input to the circuit shown in the illustration, the ripple frequency would be ____________. EL-0085 A. 30 Hz B. 60 Hz C. 90 Hz D. 120 Hz

Last Answer : Answer: D

What is the intensity of sound in normal conversation? (a) 10-20 dB (b) 30-60 dB (c) 70-90 dB (d) 120-150 dB

Description : What is the intensity of sound in normal conversation? (a) 10-20 dB (b) 30-60 dB (c) 70-90 dB (d) 120-150 dB

Last Answer : b) 30-60 dB

The APO shall submit its nominations with complete documentation to the Commission not later than ______ prior to the expiry of the term of an incumbent chairman or member. a. 30 days b. 60 days c. 90 days d. 120 days

Description : The APO shall submit its nominations with complete documentation to the Commission not later than ______ prior to the expiry of the term of an incumbent chairman or member. a. 30 days b. 60 days c. 90 days d. 120 days

Last Answer : 60 days