Assistant Motor Vehicle Inspector Part 1

Assistant Motor Vehicle Inspector

Subject: AUTOMOBILE ENGINEERING

(Que 101-130)

101. In mechanical refrigeration system, the refrigerant has the maximum temperature

Between compressor and condenser

102. The Co-efficient of restitution for inelastic bodies is

Zero

103. When a bar is subjected to a change of temperature and its deformation is prevented, the

stress induced in the bar is

Thermal Stress

104. If a material expands freely due to heating, it will develop

No Stress

105. The D-slide valve is also known as

Outside admission valve

106. Binding wire used to support the joints for soldering is made of

Soft iron

107. Least shrinkage allowances provided in the case of following

Brass

This extra size is given on the pattern for metal shrinkage is called shrinkage allowance.

108. Ball bearings are usually made of

Chrome steel

Chrome steel is one of a class of non-stainless steels which are used for applications such bearings, tools, drills and utensils. chromium is deposited on steel or brass components. The surface looks shiny.

109. Which of the following fuel has little tendency towards detonation?

Iso-octane

2,2,4-trimethylpentane is the correct name for isooctane. Like octane, isooctane has eight carbon atoms and is also used as a fuel.

110. The most popular firing order in case of four cylinder In-line I.C. Engine

1-3-4-2

111. A two stroke engine is usually identified by

Absence of valves

112. Energy resources derived from natural organic materials are called

  

Fossil fuels

113. The energy of a thermal neutron is about

0.025 ev

Thermal neutrons are those which have energy about (1/40) eV or 0.025 eV. They have this name because they would be in thermal equilibrium with atom.

114. Mixture of ice and water form a

Heterogeneous system

A homogeneous thermodynamic system is defined as the one whose chemical composition and physical properties are the same in all parts of the system.

  

115. The term N.T.P. stands for

Normal temperature and pressure

NTP - Normal Temperature and Pressure - is defined as air at 20oC (293.15 K, 68oF) and 1 atm Density 1.204 kg/m3.

116. Which of the following is Extensive property?

(A) Entropy 

(B) Kinetic Energy

(C) Internal Energy

(D) All of above

An extensive property is any property that depends on the size (or extent) of the system under consideration. Volume is an example.

An intensive property is a property of matter that depends only on the type of matter in a sample and not on the amount. Color, temperature, and solubility are examples of intensive properties.

117. Willian’s line is curve plotted of steam consumption rate in steam engine versus

I.P.

118. Engine indicators not having any inertia effects are

Optical type

119. A transistor is controlled by the current at

The base

120. A Zener diode is used for

Voltage regulation

121. A thermistor is used in an alternator regulator to

Compensate for temperature change

122. The charging voltage at the start of the engine is _________ when the engine is running on

load.

Higher

125. Most commonly used power plant on automobile is

I.C. Engine

126. The gas used in modern shock absorber is

Nitrogen

127. The purpose of tyre rotation on automobiles is to

Equalize wear

128. Bead wires are made of

steel

129. The specific gravity of acid in a fully charged battery is generally

1.28

130. The function of quench area in the wedge-shaped combustion chamber is to

Cool the end gases.