RRB ALP Electronics Mechanic 23 Jan 2019 Official Paper (Shift 3) (Previous Year Paper)

Name the scientist who discovered bacteria ?

If a body has a specific gravity of less than 1, then it will float in/on ___________.

Which of the following options does not have an SI base unit?

How many medals did India win in Rio Olympics, 2016?

It is mainly due to the gravitational effect of the __________ on the rotating earth that the level of water in the sea rises and falls.

Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V battery. Find the current in the 6Ω resistor.

Substances that are broken down by biological processes are said to be _________.

A software program that has been developed to harm other computers is called a/an _________.

Kuchipudi has its roots in which Indian State?

Which Indian cricketer received the Padma Bhushan in 2018?

JPEG stands for __________.

Two resistors, one of 12 Ω and the other of 24 Ω are connected in parallel. This combination is connected in series with a 22 Ω resistor and a 12 V battery. The current in the 12 Ω resistor is __________.

RK Narayan is famous for his book ___________.

_________ protection must be worn whenever noise levels exceed the noise exposure standard.

A wire of length 1 and radius r has a resistance R. The resistance of another wire made of the same material but having half its length and half its radius will be.

Safety boots or shoes must be worn in designated areas to protect your _______  from falling objects.

A cylindrical wire of length L and radius r has a resistance of R. The resistance of another wire of the same material but thrice its length and one-third its radius will be __________.

If a body is NOT homogeneous, then its density is a function of its ___________.

Two resistors of 10Ω and 20 Ω area connected in series and this combination is connected across a 30 V supply voltage. Find the voltage across the 10 Ω resistor.

Which one of these is a harvest festival? 

86°F is equal to __________

Where is the Headquarters of UNESCO located?

Name of the painter of famous painting, ‘Mahishasura’.

What is the work that needs to be done to increase the speed of a 1 kg ball from 2 m/s to 4 m/s?

The Ajanta Caves in Maharashtra feature paintings and sculptures that depict __________ tales.

The volume of a given amount of water ________ between 0°C to 4°C.

Two resistance of 2Ω and 6Ω are connected in series and this combination is connected across a 12 V  bettery. Find the power supplied by the battery.

An object weighs X units on the earth. If we take the same object to the moon, its weight there will be ________.

A body starts from rest. Its displacement is proportional to _________ when its acceleration is constant.

A source of voltage V maintains a current i in a circuit. The energy supplied to the circuit by the source in time t is __________.

Who was the first governor of the Reserve Bank of India?

A car covers 400 m in 20 seconds. Find the average speed (in km/hr) of the car. 

If sin θ = 15/17, then cot θ = ? 

In an examination, the highest score and the lowest score are different by 55 and the higher one was 9/4 times the lower one. Find the lowest score.

A number is as much greater than 50 as it is lesser than 84. What is the number?

If \(x = \sqrt {125} \times \sqrt {30} \times \sqrt 6 \) ,  then x is equal to:

A got Rs. 80 as his share of profit where the total profit was Rs. 240 and the ratio of profit distribution between A and B was x : 2. What is the value of x? 

What is the median of 8, 5, 7, 9, 11, 6, 10?

If 5050 × 0.5x = 25250, then 2505 ÷ x² = ?

An article of marked price Rs. 12000 was sold. Had a discount of 15% been offered, a profit of 2% would have been made. What was the cost price?

A sum of Rs. 2,000 was spent in buying a pair of trousers. The sum spent was 2/5^th of the total money Shashi had with her. How much was the total money she had?

A machine was bought for Rs. 1,500 and a repairing charge of Rs. 100 was paid afterwards. At what price should it be sold to gain a profit of 25%?

In angular measurement, one radian is equivalent to ________ degree (approximately).

A and B can do a work in 15 days. B and C can do the work in 20 days and A and C can do the work in 10 days. In how many days will they together completed the work?

Pipes A and B can fill a tank in 12 minutes and 16 minutes respectively. Both A and B are opened for 4 minutes and then A is closed. How much extra time will B take to fill the tank completely?

A can do 2/5 of a work in 10 days. B can do ½ of the some work in 10 days. They worked together for 5 days and then A left. In how many days will B finish the remaining work?

Reflection of point (-2, -6) on the Y-axis is:

The pie chart shows the breakup in percentage of the various expenses of a Company. Study the diagram and answer the following question. 

What is the interest expense if total expenses is Rs. 25000.

A motorcycle travelled 1000 m at 36 km/hr. Find the time (in seconds) taken by the motorcycle to cover this distance.

A 4-digit number 1xy7 is divisible by 11. What is the value of x - y?

Tap M and N can together fill a cistern in 48/13 minutes. N alone can fill it in 6 minutes. How much time will M alone take to fill the cistern?

What is the curved surface area of a hemisphere whose radius is 7 cm? (take π = 22/7)

An airplane flies at the speed of 50 m/s. How much distance (in km) will it cover in a flight of 5 hours?

What is the distance between the points (4, 3) and (3, -2)?

sec 45° - tan 60° = ? 

What is the least number which when doubled is perfectly divisible by 7, 12 and 15? 

A sum of Rs. 10,000 amounts to Rs. 11, 449 in 2 years, when the interest is compounded annually. The interest rate percent per annum is:

The ages of X and Y are in the ratio 4 : 7. Three years earlier, the ratio of their ages was 1 : 2. What is the difference between their current ages (Y - X)?

What is 80% of 50% of 90?

Choose the figure that is different from the rest.

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.

1.14, 1.28, 1.42, ?, 1.70, 1.84

Two planes E and F start flying from the same point. E flies 7 km west, then turns to its left and flies 15 km. Meanwhile F flies 11 km east and turns right and flies 15 km. Where is F with respect to E?

Given below are some letters, that each of these letters has a corresponding number. Select the combination of numbers from the option so that the jumbled letters arranged accordingly will form a meaningful English word.

H T R U O A

1 2 3 4 5 6

I, J, K and L are sitting in a row. L and I are sitting next to each other and I and K are the ends. Who is sitting next to J?

Select the option that is related to the third term in the same way as the second term is related to the first term.

Tall : Short ∷ Glad : ?

If, ‘+’ represents ‘×’, ‘-‘ represents ‘+’, ‘×’ represents ‘÷’ and ‘÷’ represents ‘-‘ then find the value of the following expression.

9 × 3 + 6 ÷ 2 = ?

If G + H means G is daughter of H, G- H means G is sister H and G * H means G is husband of H, which of the following shows that I is the daughter of H?

Which of the following Venn diagrams best represents the relationship between Indians, doctors and women?

Given below are two statement, followed by two conclusion, I and II. You have to consider the statement 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, follow(s) from the given statements.

Statement 1: No quadrilaterals are polygons.

Statement 2: All polygons are rhombuses.

Conclusion I: Some rhombuses are quadrilaterals.

Conclusion II: Some rhombuses are polygons.

Which two signs should be interchanged to make the given equation correct?

9 ÷ 3 + 8 × 2 – 15 = 2

What is the minimum number of lines required to make the given image?

A series is give, with one term missing. Choose the correct alternative from the given ones that will complete the series.

OOOOOX, OOOOXX, OOOXXX, OOXXXX, ?

If C $ D means C is daughter of D, C & D means C is mother of D and C % D means C is son of D, then what does W $ X & Y % Z mean?

Given below is a question, followed by two arguments, I and II. You have to decide which of the given arguments, if any, is a strong argument, with respect to the question.

Question: Should advertisements be banned on television?

Argument I: Yes, advertisements are immoral.

Argument II: No, advertisements bring in revenue which helps reduce cost for viewers.

Select the option that is related to the third number in the same way as the second number is related to the first number.

-9/11 : 11/9 ∷ 13/2 : ?

Given below is a statement followed by two assumption numbered I and II. You have to decide which of the assumptions is/are implicit in the statement.

Statement: The human body produces Vitamin D when exposed to sunlight.

Assumption I: The human body will have Vitamin D even if it is not consumed via food.

Assumption II: A large portion of the global population suffers from Vitamin D deficiency.

A salesperson starts from his office and drives 2 km east, then turns north and drives 7 km, then turns to his right and drives 6 km, then turns south and drives 7 km. Where is he now with respect to his starting position?

Unscramble the letters in the words given below and find the odd word out.

Find the odd group of letters from the given alternatives.

Choose the figure that is different from the rest.

In a code language, 295 means ‘water is liquid’, 549 means ‘oil is liquid’ and 824 means ‘oil on water.’ Find the code for ‘on’.

In the following figure, square represents Chinese, triangle represents dancers, circle represents male and rectangle represents architects. Which set of letters represents dancers who are male?

The abbreviation AC in an engineering drawing stands for __________.

Greater the value of _______ of a material, the more rapidly it will conduct heat. 

The effort applied to move a load is 15 units and the mechanical advantage is observed to be 3. Find the load. 

What is the unit's digit in 3⁶⁶ × 6⁴¹ × 7⁵³ 

If the width of a standard engineering drawing sheet is 841 mm, then its length would be ________ mm. 

A 200 g block of iron was heated from 30°C to 60°C. How much heat was transferred to the block (specific heat of iron is 450 Jkg^-1K^-1)?

If a machine overcomes a load 'L' and the distance travelled by the load is 'Ld', the work done by the load will be __________.

A brass rod (thermal conductivity 109 J/s m K) has an area of cross section 0.04 m² and length 20 cm. If the two end of the rod are maintained at a temperature difference of 200°C, the rate of heat flow through the rod is ________.

The effort in a class 1 lever is in __________ direction(s).

The velocity ratio of a simple machine is the ratio of distance traveled by the ________ to the distance traveled by the ________ in the machine.

If straight lines are drawn from various points on the contour of an object to meet a plane, the figure obtained on the plane is called the _______ of the object. 

A _______ is a theoretical exact plane, axis or point location that GD & T or dimensional tolerances are referenced to. 

Molar specific heat capacity of a substance is _________.

In engineering drawing, the letters LH signifies __________.

Identify the material having high coefficient of volume expansion. 

An object starts from rest at x = 0 m and moves with a constant acceleration of 1.6 m/s² along the x-axis. During its journey from x = 12.8 m to x = 20.0 m, its average velocity will be __________.

You are given a question and two statements. Identify which of the statements is/are necessary/sufficient to answer the question.

Question: What was the discount percent offered on the soap by the store?

Statements:

I) The store is giving 1 soap free on purchase of three.

II) Rs. 10 discount is offered on purchase of soap worth 36.

Identify the material having low coefficient of volume expansion 

Carry input is present in which of the following?

In a mercury cell, zinc-mercury amalgam is used as an anode and carbon is used as a cathode. A paste of _______ is used as an electrolyte.

The two coil windings of a transformer are ________

When a diode is switching from conducting state to blocking state, it has stored charge which needs to be discharged before, it blocks reverse current, this time required is known as _______.

To measure Voltage, Current is passed through _______.

Ideal regulated power supplies have ______ % voltage regulation.

The evolution of cell phone standards are from 1 G to 5 G, what this G indicates?

A digital multimeter can measure _______.

What is the rating used to rate a Transformer?

The output waveform of an integrator in a function generator is ______.

Adder Circuit can be used as a Subtractor circuit by using _________.

Which of the following diodes can be used as Voltage Regulator if used in reverse bias?

Which one of the following is not a basic MOSFET device type?

Which one of the following instrument is used to measure the specific gravity (or relative density) of liquids?

In LCD TV, what is the full form of LCD?

The _______ is a device that is able to sense light levels and alter the current flowing between emitter and collector according to the level of light it receives.

The capability of a power supply to maintain constant voltage or current at the output despite change in supply's load is known as _______.

The IR LED sends out light with wavelengths ________ visible light.

Which one of the below is not the application of shift register?

Solar panels convert sun light into electricity based on the principle of _______.

The minimum voltage required across a linear voltage regulator to maintain regulation is known as _______.

Identify the circuit which is not the application of op-amp.

The RC time constant is also called as _______.

Select the component which is not an example of passive SMD component.

LED is a _______ junction diode that emits light when activated.

In 3 ∶ 8 line decoder one of the eight output bits is activated, depending on which of the following parameters

Which category of instruments does an ohmmeter fall under?

________ has a single input and multiple outputs.

What happens when batteries are connected in series?

_______ is an application of electronic devices and systems that source, detect and control light.

When capacitors are connected in parallel, the total capacitance is the _______ of the individual capacitances.

For a design of (16 ∶ 1) multiplexer, how many select lines will be required?

Which instrument is used to measure the insulation resistance of an electric circuit relative to earth?