DMRC Mechanical Engineering Paper-1 2016

Instructions

For the following questions answer them individually

Question 31

The total cost price of two items is Rs. 10,200/- and their selling prices are equal. If one of the two items is sold at a loss of 12% and another is sold at a loss of 18%, then the cost price of the item which is sold at a loss of 18% is:

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Question 32

A petrol tank at a filling station has a capacity of 400 litres. The attendant sells 40 litres of petrol from the tank to one customer and then replenishes it with kerosene oil. This process is repeated with six customers. What quantity of pure petrol will the seventh customer get when he purchases 40 litres of petrol?

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Question 33

A and B are two alloys of gold and copper prepared by mixing metals in the ratios 5:3 and 5:11 respectively. Equal quantities of these alloys are melted to form a thirdalloy C. The ratio of gold and copper in the alloy C is:

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Question 34

The formula for the number of diagonals in a polygon of n sides is d=$$\frac{1}{2}[n(n-3)]$$. If the number of diagonals in a polygon is twice as many as the number of sides,what is the number of sides:

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Question 35

Peeyush walked 8 km. west and turned right and walked 3 kms. Then again he turned right and walked 12 kms. How far is he from the starting point?

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Question 36

Which one of the following statements correctly describes the Fourth Schedule of the constitution of India?

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Instructions

In the following question two statements are followed by two possible inferences. Point out which of the following inferences. Point out which of the following answer choice applies. Assume statements to be correct even if they very from facts.
A:Only inference I follows
B:Only inference II follows
C:Both inferences I and II follow
D:Neither inferences I nor II follow

Question 37

All fish are tortoise, no tortoise is a crocodile:
I.No crocodile is a fish
II.No fish is a crocodile

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Instructions

For the following questions answer them individually

Question 38

When three coins are tossed together, the probability that all coins have the same face is:

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Question 39

A man walked diagonally across a square plot. What was the percent saved by not walking along edges?

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Instructions

In the following question a number series is given. After the series a number is given followed by (a), (b), (c), (d) and (e). You have to complete the series starting with the number given following the sequence of the given series and answer the question given below the series.

Question 40

6 10 7 12 8 14
4 (a) (b) (c) (d) (e)

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