The required DC voltage for arc welding is- (1) 6 to 9 V (2) 50 to 60 V (3) 200 to 250 V (4) 90 to 100 V

The required DC voltage for arc welding is- (1) 6 to 9 V (2) 50 to 60 V (3) 200 to 250 V (4) 90 to 100 V
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(3) 200 to 250 V
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A butt weld has been made by MMA in a 50mm thick impact tested steel plate. The welding electrode used was a basic type, 5mm diameter. The measured welding parameters for one of the runs was 250 amps, 24 volts, using DC+ve polarity, and a ROL:of 180mm per min. What would be the arc energy? a) Insufficient information given to calculate the arc energy b) 1.9 kJ/mm c) 1.87 kJ/mm d) 2.0 kJ/mm

Description : A butt weld has been made by MMA in a 50mm thick impact tested steel plate. The welding electrode used was a basic type, 5mm diameter. The measured welding parameters for one of the runs was 250 amps, 24 volts, using DC ... given to calculate the arc energy b) 1.9 kJ/mm c) 1.87 kJ/mm d) 2.0 kJ/mm

Last Answer : d) 2.0 kJ/mm

An LED is operated on a 12 volt automobile circuit. The voltage drop across the LED is 2 volts and the current must be limited to 50 milliamps to prevent its overheating and destruction. What size resistor must be used? w) 60 ohms x) 100 ohms y) 120 ohms z) 200 ohms

Description : An LED is operated on a 12 volt automobile circuit. The voltage drop across the LED is 2 volts and the current must be limited to 50 milliamps to prevent its overheating and destruction. What size resistor must be used? w) 60 ohms x) 100 ohms y) 120 ohms z) 200 ohms

Last Answer : ANSWER: Z -- 200 OHMS

When MMA welding what will be the effect on the weld f the power source was changed from AC to DC-ve? a) None b) Higher deposition rate c) It would slightly increase the depth of penetration d) The arc would become unstable

Description : When MMA welding what will be the effect on the weld f the power source was changed from AC to DC-ve? a) None b) Higher deposition rate c) It would slightly increase the depth of penetration d) The arc would become unstable

Last Answer : b) Higher deposition rate

Which of the following generators is used for DC arc welding application ?

Description :  Which of the following generators is used for DC arc welding application ? (A) Series generator (B) Shunt generator (C) Differential compound generator (D) Over -compound generator

Last Answer : A

The type of dc generator used for arc welding purposes is a

Last Answer : The type of dc generator used for arc welding purposes is a Differentially compound generator.

Which of the following mainly decides the current to be employed is arc welding? (A) Electrode size (B) Plate thickness (C) Voltage across the arc (D) Welded portion length

Description : Which of the following mainly decides the current to be employed is arc welding? (A) Electrode size (B) Plate thickness (C) Voltage across the arc (D) Welded portion length

Last Answer : (A) Electrode size

What is a typical ARC voltage setting when welding with the TIG (GTAW) process? a) 18-20V b) 24-26V c) 10-12V d) 70-90V

Description : What is a typical ARC voltage setting when welding with the TIG (GTAW) process? a) 18-20V b) 24-26V c) 10-12V d) 70-90V

Last Answer : c) 10-12V

Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C. (A) 25 (B) 60-70 (C) 150-200 (D) 250-300

Description : Mercury electrolytic cell produces 50-70% NaOH solution. Its operating temperature is __________ °C. (A) 25 (B) 60-70 (C) 150-200 (D) 250-300

Last Answer : (B) 60-70

What is the recommended minimum range of illumination required by BS EN 970 for inspection of a welded surface? a) 90 to 125 lux b) 150 to 250 lux c) 350 to 500 lux d) 35 to 50 lux

Description : What is the recommended minimum range of illumination required by BS EN 970 for inspection of a welded surface? a) 90 to 125 lux b) 150 to 250 lux c) 350 to 500 lux d) 35 to 50 lux

Last Answer : c) 350 to 500 lux

How much tomatoes are required for one kg tomato seeds ? (a) 50 – 300 kg (b) 300 — 350 kg(c) 160 — 210 kg (d) 200 — 250 kg

Description : How much tomatoes are required for one kg tomato seeds ? (a) 50 – 300 kg (b) 300 — 350 kg(c) 160 — 210 kg (d) 200 — 250 kg

Last Answer : (c) 160 — 210 kg

Potassium content of muscle tissue in mg/100 ml is about (A) 50–100 (B) 100–150 (C) 250–400 (D) 150–200

Description : Potassium content of muscle tissue in mg/100 ml is about (A) 50–100 (B) 100–150 (C) 250–400 (D) 150–200

Last Answer : Answer : C

The insulin content of pancreas is about (A) 50–70 units (B) 100–150 units (C) 150–180 units (D) 200–250 units

Description : The insulin content of pancreas is about (A) 50–70 units (B) 100–150 units (C) 150–180 units (D) 200–250 units

Last Answer : Answer : D

For an adult male daily requirement of iodine is (A) 25–50 µg (B) 50–100 µg (C) 100–150 µg (D) 200–250 µg

Description : For an adult male daily requirement of iodine is (A) 25–50 µg (B) 50–100 µg (C) 100–150 µg (D) 200–250 µg

Last Answer : Answer : A

The amount of coproporphyrins excreted per day in feces is about (A) 10–50 µgs (B) 100–150 µgs (C) 200–250 µgs (D) 300–1000 µgs

Description : The amount of coproporphyrins excreted per day in feces is about (A) 10–50 µgs (B) 100–150 µgs (C) 200–250 µgs (D) 300–1000 µgs

Last Answer : Answer : D

Fee for availing business reply service a) Apr to Jun -100, Jul to Sep-75, Oct to Dec-50, Jan to Mar -25 b) Apr to Jun -200, Jul to Sep-150, Oct to Dec-100, Jan to Mar -50 c) Apr to Jun -250, Jul to Sep-150, Oct to Dec-75, Jan to Mar -50 d) Free of cost

Description : Fee for availing business reply service a) Apr to Jun -100, Jul to Sep-75, Oct to Dec-50, Jan to Mar -25 b) Apr to Jun -200, Jul to Sep-150, Oct to Dec-100, Jan to Mar -50 c) Apr to Jun -250, Jul to Sep-150, Oct to Dec-75, Jan to Mar -50 d) Free of cost

Last Answer : b) Apr to Jun -200, Jul to Sep-150, Oct to Dec-100, Jan to Mar -50

Flat rate parcel rates Flat Rate Parcel Boxes size Dimension of boxes (in mm) Weight (in Kg.) Tariff (in Rs.) Small - S 250*50*300 0 to 1 125 Medium - M 250*100*300 Above 1 to 2.5 200 Large - L 300*250*200 Above 2.5 to 5 400

Description : Flat rate parcel rates Flat Rate Parcel Boxes size Dimension of boxes (in mm) Weight (in Kg.) Tariff (in Rs.) Small - S 250*50*300 0 to 1 125 Medium - M 250*100*300 Above 1 to 2.5 200 Large - L 300*250*200 Above 2.5 to 5 400

Last Answer : Large - L 300*250*200 Above 2.5 to 5 400

If total run off of a basin of 50 hectares is 0.8 cm, the ordinate of Bernard's distribution graph, may be calculated by the formula (where Q is the discharge in cumecs at the given time) (A) y = 50 Q (B) y = 100 Q (C) y = 200 Q (D) y = 250 Q

Description : If total run off of a basin of 50 hectares is 0.8 cm, the ordinate of Bernard's distribution graph, may be calculated by the formula (where Q is the discharge in cumecs at the given time) (A) y = 50 Q (B) y = 100 Q (C) y = 200 Q (D) y = 250 Q

Last Answer : Answer: Option D

Indian Meteorological department uses the standard gauges whose collectors have apertures of (A) 50 or 100 sq. cm area (B) 100 or 150 sq. cm area (C) 100 or 200 sq. cm area (D) 250 or 500 sq. cm area

Description : Indian Meteorological department uses the standard gauges whose collectors have apertures of (A) 50 or 100 sq. cm area (B) 100 or 150 sq. cm area (C) 100 or 200 sq. cm area (D) 250 or 500 sq. cm area

Last Answer : Answer: Option C

A drug (200 mg dose) administered in tablet form and as intravenous injection (50 mg dose) showed AUG of 100 and 200 microgram hr/mL, respectively. The absolute availability of the drug through oral administration is : (A) 125% (B) 250 % (C) 12.5% (D) 1.25%

Description : A drug (200 mg dose) administered in tablet form and as intravenous injection (50 mg dose) showed AUG of 100 and 200 microgram hr/mL, respectively. The absolute availability of the drug through oral administration is : (A) 125% (B) 250 % (C) 12.5% (D) 1.25%

Last Answer : (C) 12.5%

If a secondary coil has 40 turns, and, a primary coil with 20 turns is charged with 50 V of potential difference, then the potential difference in the secondary coil would be A. 50 V in secondary coil B. 25 V in secondary coil C. 60 V in secondary coil D. 100 V in secondary coil

Description :  If a secondary coil has 40 turns, and, a primary coil with 20 turns is charged with 50 V of potential difference, then the potential difference in the secondary coil would be A. 50 V in secondary coil B. 25 V in secondary coil C. 60 V in secondary coil D. 100 V in secondary coil

Last Answer : 100 V in secondary coil

The arc voltage produced in A.C. circuit breaker is always (a) in phase with the arc current (b) lagging the arc current by 90" (c) leading the arc current by 90° (d) none of the above

Description : The arc voltage produced in A.C. circuit breaker is always (a) in phase with the arc current (b) lagging the arc current by 90" (c) leading the arc current by 90° (d) none of the above

Last Answer : (a) in phase with the arc current

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

The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be (A) 3.6 V. (B) 2.5 V. (C) 3.0 V. (D) 6.0 V.

Description : The primary winding of a 220/6 V, 50 Hz transformer is energised from 110 V, 60 Hz supply. The secondary output voltage will be (A) 3.6 V. (B) 2.5 V. (C) 3.0 V. (D) 6.0 V.

Last Answer : (C) 3.0 V.

If the load in question 50 requires a voltage of +90 V, what should be the value of the bleeder resistor?

Description : If the load in question 50 requires a voltage of +90 V, what should be the value of the bleeder resistor?

Last Answer : 2 kΩ

Track structure for CC+8 t+ 2 t loaded trains is:- (a) 52 Kg 90 UTS;PSC 1540 sleepers/ Km.; 250 mm ballast. (b) 60 Kg 90 UTS;PSC 1660 sleepers/ Km.; 300 mm ballast.* (c) 52 Kg 72 UTS;PSC 1540 sleepers/ Km.; 300 mm ballast. (d) 90 R;PSC 1340 sleepers/ Km.; 250 mm ballast.

Description : Track structure for CC+8 t+ 2 t loaded trains is:- (a) 52 Kg 90 UTS;PSC 1540 sleepers/ Km.; 250 mm ballast. (b) 60 Kg 90 UTS;PSC 1660 sleepers/ Km.; 300 mm ballast.* (c) 52 Kg 72 UTS;PSC 1540 sleepers/ Km.; 300 mm ballast. (d) 90 R;PSC 1340 sleepers/ Km.; 250 mm ballast.

Last Answer : b) 60 Kg 90 UTS;PSC 1660 sleepers/ Km.; 300 mm ballast.*

The cost of 3 horses is same as the cost of 5 cows. If total cost of 4 horses and 6 rows is Rs.1900.Find the cost of one horse? a) Rs.50 b) Rs.150 c) Rs.200 d) Rs.250 e) None of these

Description : The cost of 3 horses is same as the cost of 5 cows. If total cost of 4 horses and 6 rows is Rs.1900.Find the cost of one horse? a) Rs.50 b) Rs.150 c) Rs.200 d) Rs.250 e) None of these

Last Answer : Ratio of cost of horse and cow = 1/3 : 1/5 =5 : 3 Let cost of horse and cow are 5x and 3x respectively: Then 4 × 5x +6 × 3x = Rs.1900 =>38x = 1900 => x = 1900/38 = Rs.50 Cost of one horse = 5 × Rs.50 = Rs.250 Answer: d)

What is the range of minimum set of genes required for life? A.50-100 genes B.250-350 genes C.1000-1500 genes D.1500-2000 genes

Description : What is the range of minimum set of genes required for life? A.50-100 genes B.250-350 genes C.1000-1500 genes D.1500-2000 genes

Last Answer : 250-350 genes

What is the range of minimum set of genes required for life? A.50-100 genes B.250-350 genes C.1000-1500 genes D.1500-2000 genes

Description : What is the range of minimum set of genes required for life? A.50-100 genes B.250-350 genes C.1000-1500 genes D.1500-2000 genes

Last Answer : .250-350 genes

What is the range of minimum set of genes required for life? A- 50-100 genes B- 250-350 genes C- 1000-1500 genes D- 1500-2000 genes

Description : What is the range of minimum set of genes required for life? A- 50-100 genes B- 250-350 genes C- 1000-1500 genes D- 1500-2000 genes

Last Answer : 250-350 genes

If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is (A) M 100 (B) M 150 (C) M 200 (D) M 250

Description : If the various concrete ingredients i.e. cement, sand and aggregates are in the ratio of 1:3:6, the grade of concrete, is (A) M 100 (B) M 150 (C) M 200 (D) M 250

Last Answer : Answer: Option A

Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is: A.58 sec B.50 sec C.48 sec D.56 sec E.None of these

Description : Two trains are moving in opposite directions at 60 km/hr and 90 km/hr. Their lengths are 1.10 km and 0.9 km respectively. The time taken by the slower train to cross the faster train in seconds is: A.58 sec B.50 sec C.48 sec D.56 sec E.None of these

Last Answer : Answer – C (48 sec) Explanation – Relative speed = all lengths/time [60+90] = [1.10 +0.9 ]/time [ PLUS when opposite direction] time=2/150 = 1/75 h 1 hour______3600 sec 1/75 hr______? ?= 3600/75=48 sec

Assume postal rates for 'light letters' are: $0.25 up to 10 grams; $0.35 up to 50 grams; $0.45 up to 75 grams; $0.55 up to 100 grams. Which test inputs (in grams) would be selected using boundary value analysis? A. 0, 9,19, 49, 50, 74, 75, 99,100 B. 10, 50, 75,100, 250, 1000 C. 0, 1,10,11, 50, 51, 75, 76,100,101 D. 25, 26, 35, 36, 45, 46, 55, 56

Description : Assume postal rates for 'light letters' are: $0.25 up to 10 grams; $0.35 up to 50 grams; $0.45 up to 75 grams; $0.55 up to 100 grams. Which test inputs (in grams) would be selected using boundary value analysis? A. 0, 9,19, ... C. 0, 1,10,11, 50, 51, 75, 76,100,101 D. 25, 26, 35, 36, 45, 46, 55, 56

Last Answer : C. 0, 1,10,11, 50, 51, 75, 76,100,101

Current in a 60 W light bulb when it is connected to a 230 V power supply is A. 0.26 A B. 1.5 A C. 2.6 A D. 3.9 A

Description : Current in a 60 W light bulb when it is connected to a 230 V power supply is A. 0.26 A B. 1.5 A C. 2.6 A D. 3.9 A

Last Answer : 0.26 A

An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak

Description : An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W

Last Answer : An SSB transmitter produces a peak-to-peak voltage of 200 V across a 100 Ω antenna load. What is the Peak Envelope Power? A) 49.98 W B) 79.98 W C) 99.96 W D) 199.93 W

Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as?

Description : Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as?

Last Answer : Two bulbs of 500 W and 200 W rated at 250 V will have resistance ratio as 2 : 5.

1. Assume that there are only two goods: A and B In the base year, Quantity Price A 10 $1 B 10 $4 In the current year, Quantity Price A 20 $ 5 B 25 $20 The Consumer Price Index (CPI) for the current year is: a. 50 b. 100 c. 200 d. 500 e. 60

Description : 1. Assume that there are only two goods: A and B In the base year, Quantity Price A 10 $1 B 10 $4 In the current year, Quantity Price A 20 $ 5 B 25 $20 The Consumer Price Index (CPI) for the current year is: a. 50 b. 100 c. 200 d. 500 e. 60

Last Answer : d. 500

The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel. (A) 60 - 100 (B) 400 - 700 (C) 1200 -1500 (D) 2000 - 2300

Description : The usual energy consumption in electric arc furnace steel making is __________ KWh/ton of steel. (A) 60 - 100 (B) 400 - 700 (C) 1200 -1500 (D) 2000 - 2300

Last Answer : (B) 400 - 700

Argon is used in arc welding because

Description : Argon is used in arc welding because

Last Answer : Argon is used in arc welding because A. low reactivity with metal B. ability to lower the ... of metal C. flammability D. high calorific value

What type of arc welding equipment is necessary when participating in arc welding?

Description : What type of arc welding equipment is necessary when participating in arc welding?

Last Answer : The most important equipment you can have is your safety equipment, your gloves, visor and heavy-duty clothing. You have to have some sort of a power source to generate the electricity necessary for arc welding, so I'd say a power source is your most important arc welding equipment.

In arc welding, Argon is used because of its - (1) Low reactivity with metal (2) Ability to lower the melting point of the metal (3) High flammability (4) High calorific value

Description : In arc welding, Argon is used because of its - (1) Low reactivity with metal (2) Ability to lower the melting point of the metal (3) High flammability (4) High calorific value

Last Answer : (1) Low reactivity with metal Explanation: In arc welding, Argon is used as a shielding gas because it is chemically inert and forms no compounds. At the high temperatures that welding requires, the ... to brittle welds and instability in the welding arc. So,argon and other inert gases are sprayed.

Projection welding is (i) Electric arc welding (ii) Gas welding (iii)Spot welding (iv) None

Description : Projection welding is (i) Electric arc welding (ii) Gas welding (iii)Spot welding (iv) None

Last Answer : (iv) None

Which type of welding is generally used in automobile sector? a) Electric arc welding b) Electric resistance welding c) Gas welding d) Forge welding

Description : Which type of welding is generally used in automobile sector? a) Electric arc welding b) Electric resistance welding c) Gas welding d) Forge welding

Last Answer : b) Electric resistance welding

Among gas and electric arc welding, which has the higher rate of heating? a) Gas welding b) Electric arc welding c) Gas welding and electric arc welding have equal rate of heating d) Cannot be determined

Description : Among gas and electric arc welding, which has the higher rate of heating? a) Gas welding b) Electric arc welding c) Gas welding and electric arc welding have equal rate of heating d) Cannot be determined

Last Answer : b) Electric arc welding

Rails in the field are generally welded by using a) Thermit welding b) Gas welding c) Electric arc welding d) Forge welding

Description : Rails in the field are generally welded by using a) Thermit welding b) Gas welding c) Electric arc welding d) Forge welding

Last Answer : a) Thermit welding

The electric arc welding is a type of ............. welding. (a) forge (b) fusion

Description : The electric arc welding is a type of ............. welding. (a) forge (b) fusion

Last Answer : b) fusion

Consumable electrodes are used in the __________ welding. (A) Gas (B) Arc (C) Thermit (D) Resistance

Description : Consumable electrodes are used in the __________ welding. (A) Gas (B) Arc (C) Thermit (D) Resistance

Last Answer : (B) Arc

Projection welding & stud welding is categorised as the __________ welding. (A) Pressure (B) Thermit (C) Resistance (D) Arc

Description : Projection welding & stud welding is categorised as the __________ welding. (A) Pressure (B) Thermit (C) Resistance (D) Arc

Last Answer : C) Resistance

Coating provided on the electrodes used in the arc welding is not expected to (A) Add alloying elements (B) Prevent electrode from contamination (C) Stabilise the arc (D) Provide protective atmosphere to weld

Description : Coating provided on the electrodes used in the arc welding is not expected to (A) Add alloying elements (B) Prevent electrode from contamination (C) Stabilise the arc (D) Provide protective atmosphere to weld

Last Answer : (B) Prevent electrode from contamination

Cold cracking in the heat affected zone of a high strength steel weld can take place because of the (A) Retained austenite (B) Martensite formation (C) Relatively high sulphur content in the base metal (D) Sufficient hydrogen present in the welding arc

Description : Cold cracking in the heat affected zone of a high strength steel weld can take place because of the (A) Retained austenite (B) Martensite formation (C) Relatively high sulphur content in the base metal (D) Sufficient hydrogen present in the welding arc

Last Answer : (B) Martensite formation