Official previous years' question bank with step-by-step solutions for Precision Measuring Instruments, Limits, Fits & Tolerances, Gauges, Fasteners, Lathe Operations, Heat Treatment, and Machine Maintenance.
Marking pattern: +1.00 positive, -0.25 negative (Official BHEL Artisan Pattern).
Sumit covers a certain distance by car at a speed of 27 km/hr and returns to the starting point by scooter at a speed of 26 km/hr. Find the average speed for the entire journey.
If '+' and '-' are interchanged, and 'x' and '÷' are interchanged, then what will come in place of the question mark (?) in the following equation?
19 ÷ 5 + 4 - 2 × 14 = ?
If 1 is added to each odd digit and 1 is subtracted from each even digit in the number 7856412, then what will be the difference between the largest and the smallest digits in the number so formed?
If the third proportional of 8 and 48 be x, then what is the value of x?
Seven persons, A, B, C, D, E, F, and G, are sitting in a straight row facing north. Only two persons sit to the right of G. Only three persons sit between G and E. B sits second to the left of F. A is an immediate neighbour of D. D sits at the extreme right end. Who sits third from the left end of the row?
In the given number-pairs, the second number is obtained by performing certain mathematical operation(s) on the first number. Three of the four pairs in the options follow the same pattern and thus form a group. Select the number-pair that does NOT belong to that group.
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits. E.g. 13 - Operations on 13 such as adding to/subtracting from/multiplying with 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed.)
6 - 38
3 - 11
If 2 is added to each even digit and 3 is subtracted from each odd digit in the number 32769540, then how many digits will appear more than once in the new number so formed?
Read the given statements and conclusions carefully. Assuming that the information given in the statements is true, even if it appears to be at variance with commonly known facts, decide which of the given conclusions logically follow(s) from the statements.
Statements:
Some wires are plugs.
All switches are plugs.
Conclusions:
(I) Some wires are switches.
(II) All plugs are switches.
The number 1375836 is divisible by:
The product of two numbers is 375 and their LCM is 75. Find their HCF.
The volume (in cm³) of a wire of diameter 28 cm and length 9 m is:
take π = 22/7
The sum of two numbers is 224 and their ratio is 11 : 21. Find the difference between the numbers.
An article is sold at two successive discounts of 20% and 10% on its marked price. Find the single equivalent discount percentage.
On a sum of ₹8,000, simple interest of ₹1,600 is obtained after 4 years. Find the annual rate of interest.
The compound interest on a sum for 2 years at 12.5% p.a. (compounded annually) is ₹8,500. Find the sum.
M bought a watch for ₹X and sold it to K at 20% profit. K spent ₹500 on packing and sold it to R for ₹8,125, making a profit of 25%. Find the value of X.
Rajesh is ranked 19th from the top and 24th from the bottom in his class. How many students are there in his class?
In a certain code language,
'A & B' means 'A is the son of B',
'A @ B' means 'A is the brother of B',
'A + B' means 'A is the wife of B', and
'A x B' means 'A is the father of B'.
If 'V & R + T x H @ G', then how is V related to G?
Seven boxes M, N, O, P, S, T and U are kept one above another, but not necessarily in the same order. Only two boxes are kept below S. Only one box is kept above U. Only one box is kept between T and U. N is kept immediately above P. O is kept at some place below M. How many boxes are kept between M and N?
In a row of persons sitting facing north, Tuhin is 15th from the left end and 19th from the right end. How many persons are there in the row?