RRB ALP Electrician 23 Jan 2019 Official Paper (Shift 1) (Previous Year Paper)

What is the diameter (in cm) of a sphere of surface area 1386 cm²?

The bar graph shows the population density of 6 countries in 2000 and 2010.

If the population of country B is 10 million in 2000 and the population of country D is 6 million in 2010, how much more is the area of country B than the area of country D, where population density is measured as the number of people per 100 square kilometers.

The bar graph shows all the ingredients (in grams) required to make two types of salads, X and Y. If Ingredient B of Salad X is reduced by 100 grams and Ingredient E of salad Y is increased by 25% then salad Y would be lighter than salad X by _______.

In a steady-flowing river, a boat goes a certain distance upstream at a speed of 12 km/h and comes back the same distance at 24 km/h. Find the average speed for the total journey.

Find mass of an iron cube of side 2 cm. (Density of iron is 7.8 gm/cm³)

Two cars, X and Y, travel from A to B at average speeds of 50 km/hr and 75 km/hr respectively. If X takes 2 hours more than Y for the journey, then the distance between A and B in km is ______.

If a shopkeeper sells an item at Rs. 2,700, he makes 8% profit. If he sells the item at Rs. 3,000 what will be the percentage of profit?

Find the highest common factor of 506 and 782.

A alone can do a task in 35 days and B alone in 14 days. If they work on it together for 5 days, then what fraction of the task is left?

(0.1² - 0.025²) ÷ (0.1 - 0.025) = ______.

Find the coordinates of the midpoint of the segment joining the points (-4, 7) and (2, 3).

20 - 2[25% of (15 × 8 ÷ 6 + 12)] = ______

If a - b = 5 and ab = 14, then find a² + b².

Find the value of 5 sin θ - 2 cosec θ, if θ = 30°.

In a certain gear train, the driver has 18 teeth while the follower has 8 teeth. For every 16 turns of the driver, the follower turns ______ times.

If 5x/2 - 1/4(6x - 5/3) = 7/6, then the value of x is ______.

If the amount received at the end of 1^st and 2^nd year at compound interest on a certain principal is Rs. 1,350 and Rs. 1,458 respectively, what is the rate of interest?

A trader buys 60 bags of grain at Rs. 400 each. If he sells 18 bags at 8% profit, at what price should he sell the remaining bags to make 16.4% overall profit on selling the 60 bags?

If A, B and C can do a task working alone in 12, 18 and 36 days respectively. They all work together for 2 days, then B quits. How many days A and C working together will take to complete the remainder of the task?

What is the area (in cm²) of an equilateral triangle of side 8 cm?

A and B start to walk from point P towards point Q. The distance between P and Q is 9 km. B starts 4 minutes after A. A, on reaching Q, immediately returns and after walking a kilometre meets B. If A’s speed is a kilometre in 10 minutes, what is B’s speed in kilometres per minute?

Pipe A can fill a tank in 6 hours. Pipe B can empty it in 15 hours. If both the pipes are opened together, then the tank will be filled in how many hours?

When a number is increased by 36, it becomes 109% of itself. What is the number?

A bullet travels 90 m in 0.2 seconds. Find its speed in km/hr.

An executive earns a salary of Rs. 12,600 every month, and he spends 5/7 of it. If his salary increases by 1/3^rd and his spending increases by 1/5^th of the present expenditure, what fraction of his salary will he save?

If 3A = 6B = 7C; find A : B : C.

Find x if the mean of the numbers 10, 4, 1, 15, 15, x, 12 and 14 is 10.

If √X + 0.24 = √0.1296 then find X.

The weights of 3 boxes are 4, 7 and 10 kilograms. Which of the following CANNOT be the total weight, in kilograms, of any combination of these boxes?

The author of ‘The Monk Who Sold His Ferrari’ is ______.

Find the work done (in kJ) if a force of 750 N pushes a cart of mass 30 kg by 16 m.

Which hazardous substance can cause lung cancer?

______ is the physiological adjustment by an organism to environmental change.

Which of the following gases is a highly poisonous, odourless, tasteless and colourless gas?

Green and yellow vegetables in our diet mostly provide us which element as food?

Binary 110110101 is equal to decimal ________.

A/An ______ is software used to maintain the security of a private network.

Who was the chairman of the Constitution Drafting Committee?

The Umaid Bhawan Palace is in which city?

Classical musician Shivkumar Sharma is associated with which musical instrument?

Which of the following folk dances is from Assam?

-100° Celsius = ______ Fahrenheit

If 36 J of work is done in moving a charge Q across 8 V, find Q (in coulombs).

What is the relative density of a solid of mass 50 gm which when fully immersed in water weighs 10 gm?

If the speed of a car increases from 54 km/hr to 90 km/hr, its kinetic energy increases in the ratio of ________.

Find the length (in cm) of the edge of a cube of a piece of wood which weighs 80 N. (Use g = 10 m/s², density of wood = 1 g/cm³)

Two resistors of R Ω and 60 Ω are connected in parallel to get an effective resistance of 24 Ω. Find R.

Farad per meter is the unit of ______.

A ______ map converts color intensity or grayscale information to heights to give the appearance that features are raised above the surface, like embossed letters.

A truck of mass 5000 kg accelerates from 25 m/s to 35 m/s. Find the change in its kinetic energy (in MJ).

Which of the following recipients of the Dadasaheb Phalke Award received it posthumously?

To ______ is to prepare a storage medium, usually a disk, for reading and writing.

Which of the following is the correct relation between resistance ‘R’, conductivity ‘σ’, length ‘L’ and area of cross section ‘A’ of a metal wire?

Which team won the Indian Premier League (IPL) in 2018?

Antihistamines are found in some first-aid boxes. When should these drugs be taken?

Acceleration due to gravity on moon is 1/6^th that on earth. How much would an astronaut weigh on the moon if he weighs 90 kgf on earth? (acceleration due to gravity on earth = 10 m/s²)

Which of the following is NOT a base unit?

Who invented the blue jeans?

Find the potential difference (in V) across a resistance of 2.5 kΩ through which a 2 mA current flows.

The Living Planet Report, released every two years, is the flagship publication of which organisation?

The sum of two binary numbers 1101111 and 1100101 is ______.

The National Skills Development Corporation (NSDC) is a public-private partnership formed under India’s ______.

The resistance of a metal rod depends on all of the following, except ______.

Find the missing number in the given series.

-1.3, -0.8, -0.3, ?, 0.7, 1.2

One statement is given, followed by two assumptions, I & II. You have to consider the statement to be true, even if it seems to be at variance from commonly known facts. You are to decide which of the given assumptions can definitely be drawn from the given statement.

Statement: “You are appointed as a trainee accountant on temporary basis. Your employment status will automatically be converted to permanent on submission of pass result of M Com final exam." — Extract from an appointment letter.

Assumptions:

I. M Com final exam is a reasonable proof of an accountant's capability.

II. All trainees are appointed on temporary basis.

Choose the figure which is different from the rest.

In a certain code language, ‘+’ represents ‘×’, ‘÷’ represents ‘+’, ‘-’ represents ‘÷’ and ‘×’ represents ‘-’. Find out the answer to the following question.

12 ÷ 6 – 2 + 10 × 5 = ?

In the following figure, the triangle represents actors, the square represents professors, the circle represents Indians and the rectangle represents fathers. Which set of letters represents Indians who are either professors or fathers?

Choose the letters which are different from the rest.

Select the option that is related to the third word on the same basis as the second word is related to the first word.

Letter : Envelope ∷ Dagger : ?

If A $ B means A is the husband of B, A # B means A is the brother of B and A * B means A is the mother of B, then what does P $ Q * R # S mean?

What is the angle between the hour hand and the minute hand at half past two?

The given Venn diagram shows the number of students who have passed in the three exams, viz. English, Science and Maths. How many students failed in all the three exams?

One statement is given followed by two conclusions. Decide which of the given conclusions can definitely be drawn from the given statement.

Statement: As income increases, cars become more affordable.

Conclusion I: With greater use of technology, cars are now cheaper than they were a generation ago.

Conclusion II: Cars will become so numerous that no future technology will solve the traffic problem.

A postman starts from the post office and cycles 13 km south, then turns west and cycles 10 km, then turns north and cycles 8 km, then turns east and cycles 2 km and then turns to his left and cycles 5 km. Where is he now with reference to his starting position?

Here are some words from an artificial language.

unacri means lighthouse

bancri means lightweight

banetu means overweight

Which word would mean ‘overdrive’?

At present, the ratio between the ages of Anu and Dimpy is 5 : 8. After 2 years, the ratio of their ages will become 2 : 3. What was Dimpy’s age before 2 years?

In the question, two statements are given, followed by three conclusions, I, II and III. You have to consider the statements to be true even if they seem to be at variance with commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement:

 All flags are banners.

 Some flags are emblems.

Conclusion:

I. Some emblems are banners.

II. All banners are emblems.

III.No emblems are banners.

Choose the one which is different from the rest.

Select the option that is related to the third word on the same basis as the second word is related to the first word.

Poem : Stanza ∷ Book : ?

If 8 # 12 = 10; 5 # 9 = 7; 6 # 10 = 8, then find the value of 14 # 4.

In a certain code DIRTY is coded as 24759 and FOAM is coded as 1863. Using the same code ARID will be coded as ______.

In the following question, which set of letters and numbers, when sequentially placed at the gaps in the given series, shall complete it?

1_2x_bb_yy_cc_6zzz

A said to B, “You are my husband’s daughter-in-law’s son.” How is B related to A?

In the question, two statements are given, followed by two conclusions, I, and II. You have to consider the statements to be true even if they seem to be at variance from commonly known facts. You have to decide which of the given conclusions, if any, follows from the given statements.

Statement 1: Some wagons are buggies.

Statement 2: All wagons are carts.

Conclusion I: All buggies are carts.

Conclusion II: Some carts are buggies.

Rearrange the parts of the sentence in the correct order.

A customer based on reasons

X- chances are that they actually made the change

Y- may not come out of the changing room, but

Z- which is unfortunately inappropriate

Find the power (in W) of a pump if it can lift 1 tonne of water by 90 m in 30 minutes. (Assume 100% efficiency and use g= 10 m/s²)

Which of the following is an example of a first class lever?

_______ curves employ at least three points to define a curve. The two endpoints of the curve are called anchor points. The other points, which define the shape of the curve, are called handles, tangent points, or nodes.

Find the efficiency of a pulley system which has a mechanical advantage of 2.5 and where the load lifts by 2.5 meters on pulling the rope by 10 m.

________ is when we cover a surface with a pattern of flat shapes so that there are no overlaps or gaps.

If half a litre of hot water at 90°C is mixed with three and a half litres of cold water at 10° C, find the final equilibrium temperature (in °C) if no heat is lost.

Two children, weighing 30 kg and 15 kg, sit on one side of a see-saw at a distance of 1 m and 1.2 m respectively, from the fulcrum. A boy of 'M' kg sits on the other side of the see-saw at a distance of 1.2 m from the fulcrum, and the see- saw is in equilibrium. Find M.

Find the heat capacity of a pan of mass 200 g, if its temperature rises by 8° C on receiving 2000 J of heat.

210 mm × 297 mm are the dimensions of ______ size paper.

The sentences given in the question, which, when properly sequenced, form a coherent paragraph. Each sentence is labelled with a letter. Choose the most logical order of sentences from among the given choices to construct a coherent paragraph. 

Outside their window there was a vine with attractive foliage, but it started shedding leaves one by one as summer passed through fall into winter.

A - Came dawn, when Johnsy looked out of the window from her sick bed, lo and behold, the leaf was still there and it continued to be there on the following days.

B - Finally, only one last leaf remained. Johnsy told Sue that when that leaf fell, her life would also go.

C - The girl regained her will to live and was fully recovered in a few days.

D - A concerned elderly artist friend of the girls, hearing this story, climbed outside the window in the bitterly cold night and painted a life-like leaf at the spot from where the last leaf had just fallen.

An object with greater ______ has greater inertia.

Find the specific heat capacity (in Jg^-1K^-1) of a block of metal of mass 500 g, the temperature of which rises by 80°C when it absorbs 10 kJ of heat?

Find the specific latent heat of vaporisation of 1.25 g of nitrogen (in Jg^-1), if it releases 250 Joules of heat when it condenses at its boiling point of 196° C.

An arrowhead at the end of a dimension line is approximately _________ long and 1 mm wide.

What is the formula to calculate the mass ‘M’ deposited in the electrolysis process?

Which of the following is not an Integrating instrument?

According to the IS code, the colour of earth wire is usually:

The dielectric strength of transformer oil is expected to be

What is the approximate value of average resistance of a human body?

Over speed protection of a generator is done by

Ward-Leonard control is basically a:

​Which is the colour of light is emitted by the sodium vapour lamp?

Which one of the following is the largest source of electricity in India?

The most preferred motor is used in water pumping is:

Auto transformer consists of _________ winding.

Which of the following IE rule gives importance to the restoration of persons suffering from electric shock?

Which cell has the longest life?

The watt hour efficiency of a lead cell varies between ________ and ________ %.

If the operating current is between 10 A to 100 A, which device will be used for breaking the circuit safely?

When an electric current pass through a conducting solution, there is a change in color of the solution. What does it indicate?

During installation of a generator, one must carefully ensure that the generator terminals and all control wirings are correct so that the order of __________ matches the system.

Identify the circuit in the given figure:

A spelter used in brazing is commonly made of

Ohms law states that:

Transistor works as an amplifier in

Dilute sulphuric acid is used as an electrolyte in which of the following battery?

When resistors are connected in series, the current flowing through each resistor is

The power consumed for balance load in star and delta connection is:

An inverter circuit is used to convert:

What is the full form of UPS?

How is heat distributed to the base plate of electric iron?

Inter pole winding is connected in series with which one of the below?

A 4-pole, 3-phase IM operates from a supply with frequency 50 Hz. Calculate the speed at which the magnetic field of stator rotates.

The grounding to any device will provide:

In Indian households, the single phase supply voltage is in the form of:

The simplest method of underground cable installation is: